diff --git a/CHANGELOG.md b/CHANGELOG.md
index 48c75671d88..b5e6e3a232d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,7 +24,7 @@
 - Dev: Ignore `WM_SHOWWINDOW` hide events, causing fewer attempted rescales. (#4198)
 - Dev: Migrated to C++ 20 (#4252, #4257)
 - Dev: Enable LTO for main branch builds. (#4258, #4260)
-- Dev: Removed unused include directives. (#4266)
+- Dev: Removed unused include directives. (#4266, #4275)
 - Dev: Removed TooltipPreviewImage. (#4268)
 - Dev: Removed unused operators in `Image` (#4267)
 
diff --git a/src/Application.cpp b/src/Application.cpp
index fa2fdd50578..c1bdf2c9aac 100644
--- a/src/Application.cpp
+++ b/src/Application.cpp
@@ -4,6 +4,7 @@
 #include "common/QLogging.hpp"
 #include "common/Version.hpp"
 #include "controllers/accounts/AccountController.hpp"
+#include "controllers/commands/Command.hpp"
 #include "controllers/commands/CommandController.hpp"
 #include "controllers/highlights/HighlightController.hpp"
 #include "controllers/hotkeys/HotkeyController.hpp"
@@ -11,24 +12,27 @@
 #include "controllers/notifications/NotificationController.hpp"
 #include "controllers/userdata/UserDataController.hpp"
 #include "debug/AssertInGuiThread.hpp"
+#include "messages/Message.hpp"
 #include "messages/MessageBuilder.hpp"
-#include "providers/bttv/BttvEmotes.hpp"
 #include "providers/chatterino/ChatterinoBadges.hpp"
 #include "providers/ffz/FfzBadges.hpp"
-#include "providers/ffz/FfzEmotes.hpp"
 #include "providers/irc/Irc2.hpp"
+#include "providers/seventv/eventapi/SeventvEventAPIDispatch.hpp"
+#include "providers/seventv/eventapi/SeventvEventAPISubscription.hpp"
 #include "providers/seventv/SeventvBadges.hpp"
-#include "providers/seventv/SeventvEmotes.hpp"
 #include "providers/seventv/SeventvEventAPI.hpp"
+#include "providers/twitch/ChannelPointReward.hpp"
+#include "providers/twitch/PubSubActions.hpp"
 #include "providers/twitch/PubSubManager.hpp"
+#include "providers/twitch/PubSubMessages.hpp"
+#include "providers/twitch/TwitchChannel.hpp"
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "providers/twitch/TwitchMessageBuilder.hpp"
 #include "singletons/Emotes.hpp"
 #include "singletons/Fonts.hpp"
+#include "singletons/helper/LoggingChannel.hpp"
 #include "singletons/Logging.hpp"
-#include "singletons/NativeMessaging.hpp"
 #include "singletons/Paths.hpp"
-#include "singletons/Resources.hpp"
 #include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
 #include "singletons/Toasts.hpp"
@@ -36,7 +40,6 @@
 #include "singletons/WindowManager.hpp"
 #include "util/Helpers.hpp"
 #include "util/PostToThread.hpp"
-#include "util/RapidjsonHelpers.hpp"
 #include "widgets/Notebook.hpp"
 #include "widgets/splits/Split.hpp"
 #include "widgets/Window.hpp"
diff --git a/src/Application.hpp b/src/Application.hpp
index 6f6bc995b5c..edb571f16b7 100644
--- a/src/Application.hpp
+++ b/src/Application.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include "common/SignalVector.hpp"
 #include "common/Singleton.hpp"
 #include "singletons/NativeMessaging.hpp"
 
@@ -25,7 +24,6 @@ class Theme;
 class WindowManager;
 class Logging;
 class Paths;
-class AccountManager;
 class Emotes;
 class IEmotes;
 class Settings;
diff --git a/src/BaseSettings.hpp b/src/BaseSettings.hpp
index f70fa29ca8a..89ce45d06cf 100644
--- a/src/BaseSettings.hpp
+++ b/src/BaseSettings.hpp
@@ -1,5 +1,4 @@
-#ifndef AB_SETTINGS_H
-#define AB_SETTINGS_H
+#pragma once
 
 #include "common/ChatterinoSetting.hpp"
 
@@ -46,8 +45,3 @@ Settings *getSettings();
 AB_SETTINGS_CLASS *getABSettings();
 
 }  // namespace chatterino
-
-#ifdef CHATTERINO
-#    include "singletons/Settings.hpp"
-#endif
-#endif
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 56e0f0aea01..eebd4c246e1 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -70,6 +70,10 @@ set(SOURCE_FILES
 
         controllers/filters/FilterModel.cpp
         controllers/filters/FilterModel.hpp
+        controllers/filters/FilterRecord.cpp
+        controllers/filters/FilterRecord.hpp
+        controllers/filters/FilterSet.cpp
+        controllers/filters/FilterSet.hpp
         controllers/filters/parser/FilterParser.cpp
         controllers/filters/parser/FilterParser.hpp
         controllers/filters/parser/Tokenizer.cpp
@@ -188,8 +192,6 @@ set(SOURCE_FILES
 
         providers/bttv/BttvEmotes.cpp
         providers/bttv/BttvEmotes.hpp
-        providers/bttv/LoadBttvChannelEmote.cpp
-        providers/bttv/LoadBttvChannelEmote.hpp
 
         providers/chatterino/ChatterinoBadges.cpp
         providers/chatterino/ChatterinoBadges.hpp
@@ -330,6 +332,7 @@ set(SOURCE_FILES
         util/AttachToConsole.hpp
         util/Clipboard.cpp
         util/Clipboard.hpp
+        util/ConcurrentMap.hpp
         util/DebugCount.cpp
         util/DebugCount.hpp
         util/DisplayBadge.cpp
@@ -356,6 +359,7 @@ set(SOURCE_FILES
         util/RatelimitBucket.hpp
         util/SampleData.cpp
         util/SampleData.hpp
+        util/SharedPtrElementLess.hpp
         util/SplitCommand.cpp
         util/SplitCommand.hpp
         util/StreamLink.cpp
diff --git a/src/common/ChannelChatters.cpp b/src/common/ChannelChatters.cpp
index 3f4f10420f1..d65ae931b32 100644
--- a/src/common/ChannelChatters.cpp
+++ b/src/common/ChannelChatters.cpp
@@ -1,9 +1,12 @@
 #include "ChannelChatters.hpp"
 
+#include "common/Channel.hpp"
 #include "messages/Message.hpp"
 #include "messages/MessageBuilder.hpp"
 #include "providers/twitch/TwitchMessageBuilder.hpp"
 
+#include <QColor>
+
 namespace chatterino {
 
 ChannelChatters::ChannelChatters(Channel &channel)
diff --git a/src/common/ChannelChatters.hpp b/src/common/ChannelChatters.hpp
index 96d4810d1cb..b15717dc9d5 100644
--- a/src/common/ChannelChatters.hpp
+++ b/src/common/ChannelChatters.hpp
@@ -1,15 +1,18 @@
 #pragma once
 
-#include "common/Channel.hpp"
 #include "common/ChatterSet.hpp"
 #include "common/UniqueAccess.hpp"
 #include "lrucache/lrucache.hpp"
 #include "util/QStringHash.hpp"
 
+#include <QColor>
+#include <QObject>
 #include <QRgb>
 
 namespace chatterino {
 
+class Channel;
+
 class ChannelChatters
 {
 public:
diff --git a/src/common/Common.hpp b/src/common/Common.hpp
index 6dcfccaf7ce..353b52d7e0e 100644
--- a/src/common/Common.hpp
+++ b/src/common/Common.hpp
@@ -1,9 +1,5 @@
 #pragma once
 
-#include "common/Aliases.hpp"
-#include "common/Outcome.hpp"
-#include "common/ProviderId.hpp"
-
 #include <boost/optional.hpp>
 #include <boost/preprocessor.hpp>
 #include <QString>
@@ -20,11 +16,6 @@ enum class HighlightState {
     NewMessage,
 };
 
-inline QString qS(const std::string &string)
-{
-    return QString::fromStdString(string);
-}
-
 const Qt::KeyboardModifiers showSplitOverlayModifiers =
     Qt::ControlModifier | Qt::AltModifier;
 const Qt::KeyboardModifiers showAddSplitRegions =
diff --git a/src/common/CompletionModel.cpp b/src/common/CompletionModel.cpp
index 0c76dc91d86..08bddf2e8b7 100644
--- a/src/common/CompletionModel.cpp
+++ b/src/common/CompletionModel.cpp
@@ -3,6 +3,7 @@
 #include "Application.hpp"
 #include "common/ChatterSet.hpp"
 #include "controllers/accounts/AccountController.hpp"
+#include "controllers/commands/Command.hpp"
 #include "controllers/commands/CommandController.hpp"
 #include "messages/Emote.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
diff --git a/src/common/DownloadManager.hpp b/src/common/DownloadManager.hpp
index c41cae9c8d7..b1f6b6fb565 100644
--- a/src/common/DownloadManager.hpp
+++ b/src/common/DownloadManager.hpp
@@ -3,9 +3,7 @@
 #include <QFile>
 #include <QNetworkAccessManager>
 #include <QNetworkReply>
-#include <QNetworkRequest>
 #include <QObject>
-#include <QStringList>
 
 namespace chatterino {
 
diff --git a/src/common/LinkParser.hpp b/src/common/LinkParser.hpp
index 907d22a80c4..8350f466858 100644
--- a/src/common/LinkParser.hpp
+++ b/src/common/LinkParser.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include <QRegularExpressionMatch>
 #include <QString>
 
 namespace chatterino {
diff --git a/src/common/NetworkRequest.hpp b/src/common/NetworkRequest.hpp
index 3d1140c3f32..384c49f31ad 100644
--- a/src/common/NetworkRequest.hpp
+++ b/src/common/NetworkRequest.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "common/NetworkCommon.hpp"
-#include "common/NetworkResult.hpp"
 
 #include <QHttpMultiPart>
 
diff --git a/src/common/SignalVectorModel.hpp b/src/common/SignalVectorModel.hpp
index 8a9a8f37777..8cd5eaf6214 100644
--- a/src/common/SignalVectorModel.hpp
+++ b/src/common/SignalVectorModel.hpp
@@ -10,6 +10,12 @@
 
 namespace chatterino {
 
+template <typename T>
+class SignalVector;
+
+template <typename T>
+struct SignalVectorItemEvent;
+
 template <typename TVectorItem>
 class SignalVectorModel : public QAbstractTableModel,
                           pajlada::Signals::SignalHolder
diff --git a/src/controllers/accounts/AccountController.cpp b/src/controllers/accounts/AccountController.cpp
index 2692b05a95a..0ba3bc95974 100644
--- a/src/controllers/accounts/AccountController.cpp
+++ b/src/controllers/accounts/AccountController.cpp
@@ -3,6 +3,7 @@
 #include "controllers/accounts/Account.hpp"
 #include "controllers/accounts/AccountModel.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
+#include "util/SharedPtrElementLess.hpp"
 
 namespace chatterino {
 
diff --git a/src/controllers/accounts/AccountController.hpp b/src/controllers/accounts/AccountController.hpp
index 1cf6ae931ff..a19af9692c1 100644
--- a/src/controllers/accounts/AccountController.hpp
+++ b/src/controllers/accounts/AccountController.hpp
@@ -3,7 +3,6 @@
 #include "common/SignalVector.hpp"
 #include "common/Singleton.hpp"
 #include "providers/twitch/TwitchAccountManager.hpp"
-#include "util/SharedPtrElementLess.hpp"
 
 #include <QObject>
 
diff --git a/src/controllers/accounts/AccountModel.hpp b/src/controllers/accounts/AccountModel.hpp
index e5aea0641c1..2552a00b752 100644
--- a/src/controllers/accounts/AccountModel.hpp
+++ b/src/controllers/accounts/AccountModel.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/accounts/Account.hpp"
 #include "util/QStringHash.hpp"
 
 #include <unordered_map>
diff --git a/src/controllers/commands/CommandContext.hpp b/src/controllers/commands/CommandContext.hpp
index ced3b36b359..4ed526645d0 100644
--- a/src/controllers/commands/CommandContext.hpp
+++ b/src/controllers/commands/CommandContext.hpp
@@ -1,12 +1,15 @@
 #pragma once
 
-#include "common/Channel.hpp"
-#include "providers/twitch/TwitchChannel.hpp"
-
 #include <QStringList>
 
+#include <memory>
+
 namespace chatterino {
 
+class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
+class TwitchChannel;
+
 struct CommandContext {
     QStringList words;
 
diff --git a/src/controllers/commands/CommandController.cpp b/src/controllers/commands/CommandController.cpp
index 6d698438ee9..7268d335674 100644
--- a/src/controllers/commands/CommandController.cpp
+++ b/src/controllers/commands/CommandController.cpp
@@ -1,21 +1,25 @@
-#include "CommandController.hpp"
+#include "controllers/commands/CommandController.hpp"
 
 #include "Application.hpp"
 #include "common/Env.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/QLogging.hpp"
 #include "common/SignalVector.hpp"
 #include "controllers/accounts/AccountController.hpp"
 #include "controllers/commands/builtin/twitch/ChatSettings.hpp"
 #include "controllers/commands/Command.hpp"
+#include "controllers/commands/CommandContext.hpp"
 #include "controllers/commands/CommandModel.hpp"
 #include "controllers/userdata/UserDataController.hpp"
 #include "messages/Message.hpp"
 #include "messages/MessageBuilder.hpp"
 #include "messages/MessageElement.hpp"
+#include "messages/MessageThread.hpp"
 #include "providers/irc/IrcChannel2.hpp"
 #include "providers/irc/IrcServer.hpp"
 #include "providers/twitch/api/Helix.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
+#include "providers/twitch/TwitchChannel.hpp"
 #include "providers/twitch/TwitchCommon.hpp"
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "providers/twitch/TwitchMessageBuilder.hpp"
@@ -35,6 +39,7 @@
 #include "util/Twitch.hpp"
 #include "widgets/dialogs/ReplyThreadPopup.hpp"
 #include "widgets/dialogs/UserInfoPopup.hpp"
+#include "widgets/helper/ChannelView.hpp"
 #include "widgets/splits/Split.hpp"
 #include "widgets/splits/SplitContainer.hpp"
 #include "widgets/Window.hpp"
diff --git a/src/controllers/commands/CommandController.hpp b/src/controllers/commands/CommandController.hpp
index f05e6c4ede9..fcae24249f7 100644
--- a/src/controllers/commands/CommandController.hpp
+++ b/src/controllers/commands/CommandController.hpp
@@ -1,11 +1,8 @@
 #pragma once
 
-#include "common/ChatterinoSetting.hpp"
 #include "common/SignalVector.hpp"
 #include "common/Singleton.hpp"
-#include "controllers/commands/Command.hpp"
-#include "controllers/commands/CommandContext.hpp"
-#include "providers/twitch/TwitchChannel.hpp"
+#include "util/QStringHash.hpp"
 
 #include <pajlada/settings.hpp>
 #include <QMap>
@@ -20,8 +17,12 @@ namespace chatterino {
 class Settings;
 class Paths;
 class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
+struct Message;
 
+struct Command;
 class CommandModel;
+struct CommandContext;
 
 class CommandController final : public Singleton
 {
diff --git a/src/controllers/commands/CommandModel.cpp b/src/controllers/commands/CommandModel.cpp
index a3117d3ab21..1bee92be218 100644
--- a/src/controllers/commands/CommandModel.cpp
+++ b/src/controllers/commands/CommandModel.cpp
@@ -1,5 +1,7 @@
-#include "CommandModel.hpp"
+#include "controllers/commands/CommandModel.hpp"
 
+#include "common/SignalVector.hpp"
+#include "controllers/commands/Command.hpp"
 #include "util/StandardItemHelper.hpp"
 
 namespace chatterino {
diff --git a/src/controllers/commands/CommandModel.hpp b/src/controllers/commands/CommandModel.hpp
index 30bf0f5ee41..628a6085902 100644
--- a/src/controllers/commands/CommandModel.hpp
+++ b/src/controllers/commands/CommandModel.hpp
@@ -1,13 +1,13 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/commands/Command.hpp"
 
 #include <QObject>
 
 namespace chatterino {
 
 class CommandController;
+struct Command;
 
 class CommandModel : public SignalVectorModel<Command>
 {
diff --git a/src/controllers/commands/builtin/twitch/ChatSettings.cpp b/src/controllers/commands/builtin/twitch/ChatSettings.cpp
index 40387d4ae31..ed687261561 100644
--- a/src/controllers/commands/builtin/twitch/ChatSettings.cpp
+++ b/src/controllers/commands/builtin/twitch/ChatSettings.cpp
@@ -2,6 +2,7 @@
 
 #include "Application.hpp"
 #include "controllers/accounts/AccountController.hpp"
+#include "controllers/commands/CommandContext.hpp"
 #include "messages/MessageBuilder.hpp"
 #include "providers/twitch/api/Helix.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
diff --git a/src/controllers/commands/builtin/twitch/ChatSettings.hpp b/src/controllers/commands/builtin/twitch/ChatSettings.hpp
index 08932160e50..9362de12ce7 100644
--- a/src/controllers/commands/builtin/twitch/ChatSettings.hpp
+++ b/src/controllers/commands/builtin/twitch/ChatSettings.hpp
@@ -1,24 +1,28 @@
 #pragma once
 
-#include "controllers/commands/CommandContext.hpp"
-
 #include <QString>
 
-namespace chatterino::commands {
+namespace chatterino {
+
+struct CommandContext;
+
+namespace commands {
+
+    QString emoteOnly(const CommandContext &ctx);
+    QString emoteOnlyOff(const CommandContext &ctx);
 
-QString emoteOnly(const CommandContext &ctx);
-QString emoteOnlyOff(const CommandContext &ctx);
+    QString subscribers(const CommandContext &ctx);
+    QString subscribersOff(const CommandContext &ctx);
 
-QString subscribers(const CommandContext &ctx);
-QString subscribersOff(const CommandContext &ctx);
+    QString slow(const CommandContext &ctx);
+    QString slowOff(const CommandContext &ctx);
 
-QString slow(const CommandContext &ctx);
-QString slowOff(const CommandContext &ctx);
+    QString followers(const CommandContext &ctx);
+    QString followersOff(const CommandContext &ctx);
 
-QString followers(const CommandContext &ctx);
-QString followersOff(const CommandContext &ctx);
+    QString uniqueChat(const CommandContext &ctx);
+    QString uniqueChatOff(const CommandContext &ctx);
 
-QString uniqueChat(const CommandContext &ctx);
-QString uniqueChatOff(const CommandContext &ctx);
+}  // namespace commands
 
-}  // namespace chatterino::commands
+}  // namespace chatterino
diff --git a/src/controllers/filters/FilterModel.cpp b/src/controllers/filters/FilterModel.cpp
index 68d91ec4f02..5ce793eb640 100644
--- a/src/controllers/filters/FilterModel.cpp
+++ b/src/controllers/filters/FilterModel.cpp
@@ -1,6 +1,7 @@
-#include "FilterModel.hpp"
+#include "controllers/filters/FilterModel.hpp"
 
 #include "Application.hpp"
+#include "controllers/filters/FilterRecord.hpp"
 #include "singletons/Settings.hpp"
 #include "util/StandardItemHelper.hpp"
 
diff --git a/src/controllers/filters/FilterModel.hpp b/src/controllers/filters/FilterModel.hpp
index ffa4a1060a0..14c0fd66bcf 100644
--- a/src/controllers/filters/FilterModel.hpp
+++ b/src/controllers/filters/FilterModel.hpp
@@ -1,12 +1,14 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/filters/FilterRecord.hpp"
 
 #include <QObject>
 
 namespace chatterino {
 
+class FilterRecord;
+using FilterRecordPtr = std::shared_ptr<FilterRecord>;
+
 class FilterModel : public SignalVectorModel<FilterRecordPtr>
 {
 public:
diff --git a/src/controllers/filters/FilterRecord.cpp b/src/controllers/filters/FilterRecord.cpp
new file mode 100644
index 00000000000..24bd22f6212
--- /dev/null
+++ b/src/controllers/filters/FilterRecord.cpp
@@ -0,0 +1,53 @@
+#include "controllers/filters/FilterRecord.hpp"
+
+namespace chatterino {
+
+FilterRecord::FilterRecord(const QString &name, const QString &filter)
+    : name_(name)
+    , filter_(filter)
+    , id_(QUuid::createUuid())
+    , parser_(std::make_unique<filterparser::FilterParser>(filter))
+{
+}
+
+FilterRecord::FilterRecord(const QString &name, const QString &filter,
+                           const QUuid &id)
+    : name_(name)
+    , filter_(filter)
+    , id_(id)
+    , parser_(std::make_unique<filterparser::FilterParser>(filter))
+{
+}
+
+const QString &FilterRecord::getName() const
+{
+    return this->name_;
+}
+
+const QString &FilterRecord::getFilter() const
+{
+    return this->filter_;
+}
+
+const QUuid &FilterRecord::getId() const
+{
+    return this->id_;
+}
+
+bool FilterRecord::valid() const
+{
+    return this->parser_->valid();
+}
+
+bool FilterRecord::filter(const filterparser::ContextMap &context) const
+{
+    return this->parser_->execute(context);
+}
+
+bool FilterRecord::operator==(const FilterRecord &other) const
+{
+    return std::tie(this->name_, this->filter_, this->id_) ==
+           std::tie(other.name_, other.filter_, other.id_);
+}
+
+}  // namespace chatterino
diff --git a/src/controllers/filters/FilterRecord.hpp b/src/controllers/filters/FilterRecord.hpp
index e18a1d48bf4..bb6eeeff327 100644
--- a/src/controllers/filters/FilterRecord.hpp
+++ b/src/controllers/filters/FilterRecord.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "controllers/filters/parser/FilterParser.hpp"
-#include "controllers/filters/parser/Types.hpp"
 #include "util/RapidjsonHelpers.hpp"
 #include "util/RapidJsonSerializeQString.hpp"
 
@@ -17,52 +16,21 @@ namespace chatterino {
 class FilterRecord
 {
 public:
-    bool operator==(const FilterRecord &other) const
-    {
-        return std::tie(this->name_, this->filter_, this->id_) ==
-               std::tie(other.name_, other.filter_, other.id_);
-    }
+    FilterRecord(const QString &name, const QString &filter);
 
-    FilterRecord(const QString &name, const QString &filter)
-        : name_(name)
-        , filter_(filter)
-        , id_(QUuid::createUuid())
-        , parser_(std::make_unique<filterparser::FilterParser>(filter))
-    {
-    }
+    FilterRecord(const QString &name, const QString &filter, const QUuid &id);
 
-    FilterRecord(const QString &name, const QString &filter, const QUuid &id)
-        : name_(name)
-        , filter_(filter)
-        , id_(id)
-        , parser_(std::make_unique<filterparser::FilterParser>(filter))
-    {
-    }
+    const QString &getName() const;
 
-    const QString &getName() const
-    {
-        return this->name_;
-    }
+    const QString &getFilter() const;
 
-    const QString &getFilter() const
-    {
-        return this->filter_;
-    }
+    const QUuid &getId() const;
 
-    const QUuid &getId() const
-    {
-        return this->id_;
-    }
+    bool valid() const;
 
-    bool valid() const
-    {
-        return this->parser_->valid();
-    }
+    bool filter(const filterparser::ContextMap &context) const;
 
-    bool filter(const filterparser::ContextMap &context) const
-    {
-        return this->parser_->execute(context);
-    }
+    bool operator==(const FilterRecord &other) const;
 
 private:
     QString name_;
diff --git a/src/controllers/filters/FilterSet.cpp b/src/controllers/filters/FilterSet.cpp
new file mode 100644
index 00000000000..8bd20414cf5
--- /dev/null
+++ b/src/controllers/filters/FilterSet.cpp
@@ -0,0 +1,78 @@
+#include "controllers/filters/FilterSet.hpp"
+
+#include "controllers/filters/FilterRecord.hpp"
+#include "singletons/Settings.hpp"
+
+namespace chatterino {
+
+FilterSet::FilterSet()
+{
+    this->listener_ =
+        getCSettings().filterRecords.delayedItemsChanged.connect([this] {
+            this->reloadFilters();
+        });
+}
+
+FilterSet::FilterSet(const QList<QUuid> &filterIds)
+{
+    auto filters = getCSettings().filterRecords.readOnly();
+    for (const auto &f : *filters)
+    {
+        if (filterIds.contains(f->getId()))
+            this->filters_.insert(f->getId(), f);
+    }
+
+    this->listener_ =
+        getCSettings().filterRecords.delayedItemsChanged.connect([this] {
+            this->reloadFilters();
+        });
+}
+
+FilterSet::~FilterSet()
+{
+    this->listener_.disconnect();
+}
+
+bool FilterSet::filter(const MessagePtr &m, ChannelPtr channel) const
+{
+    if (this->filters_.size() == 0)
+        return true;
+
+    filterparser::ContextMap context =
+        filterparser::buildContextMap(m, channel.get());
+    for (const auto &f : this->filters_.values())
+    {
+        if (!f->valid() || !f->filter(context))
+            return false;
+    }
+
+    return true;
+}
+
+const QList<QUuid> FilterSet::filterIds() const
+{
+    return this->filters_.keys();
+}
+
+void FilterSet::reloadFilters()
+{
+    auto filters = getCSettings().filterRecords.readOnly();
+    for (const auto &key : this->filters_.keys())
+    {
+        bool found = false;
+        for (const auto &f : *filters)
+        {
+            if (f->getId() == key)
+            {
+                found = true;
+                this->filters_.insert(key, f);
+            }
+        }
+        if (!found)
+        {
+            this->filters_.remove(key);
+        }
+    }
+}
+
+}  // namespace chatterino
diff --git a/src/controllers/filters/FilterSet.hpp b/src/controllers/filters/FilterSet.hpp
index 687f79964da..dd1501664b6 100644
--- a/src/controllers/filters/FilterSet.hpp
+++ b/src/controllers/filters/FilterSet.hpp
@@ -1,86 +1,37 @@
 #pragma once
 
-#include "controllers/filters/FilterRecord.hpp"
-#include "singletons/Settings.hpp"
+#include <pajlada/signals.hpp>
+#include <QList>
+#include <QMap>
+#include <QUuid>
+
+#include <memory>
 
 namespace chatterino {
 
+class FilterRecord;
+using FilterRecordPtr = std::shared_ptr<FilterRecord>;
+struct Message;
+class Channel;
+using MessagePtr = std::shared_ptr<const Message>;
+using ChannelPtr = std::shared_ptr<Channel>;
+
 class FilterSet
 {
 public:
-    FilterSet()
-    {
-        this->listener_ =
-            getCSettings().filterRecords.delayedItemsChanged.connect([this] {
-                this->reloadFilters();
-            });
-    }
-
-    FilterSet(const QList<QUuid> &filterIds)
-    {
-        auto filters = getCSettings().filterRecords.readOnly();
-        for (const auto &f : *filters)
-        {
-            if (filterIds.contains(f->getId()))
-                this->filters_.insert(f->getId(), f);
-        }
-
-        this->listener_ =
-            getCSettings().filterRecords.delayedItemsChanged.connect([this] {
-                this->reloadFilters();
-            });
-    }
-
-    ~FilterSet()
-    {
-        this->listener_.disconnect();
-    }
-
-    bool filter(const MessagePtr &m, ChannelPtr channel) const
-    {
-        if (this->filters_.size() == 0)
-            return true;
-
-        filterparser::ContextMap context =
-            filterparser::buildContextMap(m, channel.get());
-        for (const auto &f : this->filters_.values())
-        {
-            if (!f->valid() || !f->filter(context))
-                return false;
-        }
+    FilterSet();
+    FilterSet(const QList<QUuid> &filterIds);
 
-        return true;
-    }
+    ~FilterSet();
 
-    const QList<QUuid> filterIds() const
-    {
-        return this->filters_.keys();
-    }
+    bool filter(const MessagePtr &m, ChannelPtr channel) const;
+    const QList<QUuid> filterIds() const;
 
 private:
     QMap<QUuid, FilterRecordPtr> filters_;
     pajlada::Signals::Connection listener_;
 
-    void reloadFilters()
-    {
-        auto filters = getCSettings().filterRecords.readOnly();
-        for (const auto &key : this->filters_.keys())
-        {
-            bool found = false;
-            for (const auto &f : *filters)
-            {
-                if (f->getId() == key)
-                {
-                    found = true;
-                    this->filters_.insert(key, f);
-                }
-            }
-            if (!found)
-            {
-                this->filters_.remove(key);
-            }
-        }
-    }
+    void reloadFilters();
 };
 
 using FilterSetPtr = std::shared_ptr<FilterSet>;
diff --git a/src/controllers/filters/parser/FilterParser.cpp b/src/controllers/filters/parser/FilterParser.cpp
index 9e71a365b6e..00c5bd6b76c 100644
--- a/src/controllers/filters/parser/FilterParser.cpp
+++ b/src/controllers/filters/parser/FilterParser.cpp
@@ -3,6 +3,9 @@
 #include "Application.hpp"
 #include "common/Channel.hpp"
 #include "controllers/filters/parser/Types.hpp"
+#include "messages/Message.hpp"
+#include "providers/twitch/TwitchBadge.hpp"
+#include "providers/twitch/TwitchChannel.hpp"
 #include "providers/twitch/TwitchIrcServer.hpp"
 
 namespace filterparser {
diff --git a/src/controllers/filters/parser/Types.hpp b/src/controllers/filters/parser/Types.hpp
index 0d8c7a5b23c..d6fcd7c9ecb 100644
--- a/src/controllers/filters/parser/Types.hpp
+++ b/src/controllers/filters/parser/Types.hpp
@@ -1,9 +1,15 @@
 #pragma once
 
-#include "messages/Message.hpp"
-
 #include <QRegularExpression>
 
+#include <memory>
+
+namespace chatterino {
+
+struct Message;
+
+}
+
 namespace filterparser {
 
 using MessagePtr = std::shared_ptr<const chatterino::Message>;
diff --git a/src/controllers/highlights/BadgeHighlightModel.cpp b/src/controllers/highlights/BadgeHighlightModel.cpp
index 3e1c10a2051..ffca5b28914 100644
--- a/src/controllers/highlights/BadgeHighlightModel.cpp
+++ b/src/controllers/highlights/BadgeHighlightModel.cpp
@@ -1,7 +1,11 @@
-#include "BadgeHighlightModel.hpp"
+#include "controllers/highlights/BadgeHighlightModel.hpp"
 
 #include "Application.hpp"
+#include "common/SignalVectorModel.hpp"
+#include "controllers/highlights/HighlightBadge.hpp"
+#include "controllers/highlights/HighlightPhrase.hpp"
 #include "messages/Emote.hpp"
+#include "providers/twitch/TwitchBadges.hpp"
 #include "singletons/Settings.hpp"
 #include "util/StandardItemHelper.hpp"
 
diff --git a/src/controllers/highlights/BadgeHighlightModel.hpp b/src/controllers/highlights/BadgeHighlightModel.hpp
index 0103dcb2c93..cf3b8501c76 100644
--- a/src/controllers/highlights/BadgeHighlightModel.hpp
+++ b/src/controllers/highlights/BadgeHighlightModel.hpp
@@ -1,14 +1,13 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/highlights/HighlightBadge.hpp"
-#include "providers/twitch/TwitchBadges.hpp"
 
 #include <QObject>
 
 namespace chatterino {
 
 class HighlightController;
+class HighlightBadge;
 
 class BadgeHighlightModel : public SignalVectorModel<HighlightBadge>
 {
diff --git a/src/controllers/highlights/HighlightBadge.cpp b/src/controllers/highlights/HighlightBadge.cpp
index 899b59c3964..b4452a22b14 100644
--- a/src/controllers/highlights/HighlightBadge.cpp
+++ b/src/controllers/highlights/HighlightBadge.cpp
@@ -1,6 +1,7 @@
 #include "HighlightBadge.hpp"
 
 #include "messages/SharedMessageBuilder.hpp"
+#include "providers/twitch/TwitchBadge.hpp"
 #include "singletons/Resources.hpp"
 
 namespace chatterino {
diff --git a/src/controllers/highlights/HighlightBadge.hpp b/src/controllers/highlights/HighlightBadge.hpp
index 0605fd8da90..d1013c3f045 100644
--- a/src/controllers/highlights/HighlightBadge.hpp
+++ b/src/controllers/highlights/HighlightBadge.hpp
@@ -1,14 +1,19 @@
 #pragma once
 
-#include "providers/twitch/TwitchBadge.hpp"
 #include "util/RapidjsonHelpers.hpp"
 #include "util/RapidJsonSerializeQString.hpp"
 
 #include <pajlada/serialize.hpp>
+#include <QColor>
 #include <QString>
 #include <QUrl>
 
+#include <memory>
+
 namespace chatterino {
+
+class Badge;
+
 class HighlightBadge
 {
 public:
diff --git a/src/controllers/highlights/HighlightBlacklistModel.cpp b/src/controllers/highlights/HighlightBlacklistModel.cpp
index 0ff68bc0ba3..8bfc09867d8 100644
--- a/src/controllers/highlights/HighlightBlacklistModel.cpp
+++ b/src/controllers/highlights/HighlightBlacklistModel.cpp
@@ -1,6 +1,7 @@
 #include "controllers/highlights/HighlightBlacklistModel.hpp"
 
 #include "Application.hpp"
+#include "controllers/highlights/HighlightBlacklistUser.hpp"
 #include "singletons/Settings.hpp"
 #include "util/StandardItemHelper.hpp"
 
diff --git a/src/controllers/highlights/HighlightBlacklistModel.hpp b/src/controllers/highlights/HighlightBlacklistModel.hpp
index d18963ccb4f..414af461a65 100644
--- a/src/controllers/highlights/HighlightBlacklistModel.hpp
+++ b/src/controllers/highlights/HighlightBlacklistModel.hpp
@@ -1,12 +1,12 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/highlights/HighlightBlacklistUser.hpp"
 
 #include <QObject>
 
 namespace chatterino {
 
+class HighlightBlacklistUser;
 class HighlightController;
 
 class HighlightBlacklistModel : public SignalVectorModel<HighlightBlacklistUser>
diff --git a/src/controllers/highlights/HighlightController.cpp b/src/controllers/highlights/HighlightController.cpp
index 785eb047dd5..58eee196efb 100644
--- a/src/controllers/highlights/HighlightController.cpp
+++ b/src/controllers/highlights/HighlightController.cpp
@@ -1,7 +1,17 @@
 #include "controllers/highlights/HighlightController.hpp"
 
+#include "Application.hpp"
 #include "common/QLogging.hpp"
+#include "controllers/accounts/AccountController.hpp"
+#include "controllers/highlights/HighlightBadge.hpp"
+#include "controllers/highlights/HighlightPhrase.hpp"
+#include "messages/Message.hpp"
+#include "messages/MessageBuilder.hpp"
+#include "providers/colors/ColorProvider.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
+#include "providers/twitch/TwitchBadge.hpp"
+#include "singletons/Paths.hpp"
+#include "singletons/Settings.hpp"
 
 namespace {
 
@@ -282,6 +292,89 @@ void rebuildBadgeHighlights(Settings &settings,
 
 namespace chatterino {
 
+HighlightResult::HighlightResult(bool _alert, bool _playSound,
+                                 boost::optional<QUrl> _customSoundUrl,
+                                 std::shared_ptr<QColor> _color,
+                                 bool _showInMentions)
+    : alert(_alert)
+    , playSound(_playSound)
+    , customSoundUrl(std::move(_customSoundUrl))
+    , color(std::move(_color))
+    , showInMentions(_showInMentions)
+{
+}
+
+HighlightResult HighlightResult::emptyResult()
+{
+    return {
+        false, false, boost::none, nullptr, false,
+    };
+}
+
+bool HighlightResult::operator==(const HighlightResult &other) const
+{
+    if (this->alert != other.alert)
+    {
+        return false;
+    }
+    if (this->playSound != other.playSound)
+    {
+        return false;
+    }
+    if (this->customSoundUrl != other.customSoundUrl)
+    {
+        return false;
+    }
+
+    if (this->color && other.color)
+    {
+        if (*this->color != *other.color)
+        {
+            return false;
+        }
+    }
+
+    if (this->showInMentions != other.showInMentions)
+    {
+        return false;
+    }
+
+    return true;
+}
+
+bool HighlightResult::operator!=(const HighlightResult &other) const
+{
+    return !(*this == other);
+}
+
+bool HighlightResult::empty() const
+{
+    return !this->alert && !this->playSound &&
+           !this->customSoundUrl.has_value() && !this->color &&
+           !this->showInMentions;
+}
+
+bool HighlightResult::full() const
+{
+    return this->alert && this->playSound && this->customSoundUrl.has_value() &&
+           this->color && this->showInMentions;
+}
+
+std::ostream &operator<<(std::ostream &os, const HighlightResult &result)
+{
+    os << "Alert: " << (result.alert ? "Yes" : "No") << ", "
+       << "Play sound: " << (result.playSound ? "Yes" : "No") << " ("
+       << (result.customSoundUrl
+               ? result.customSoundUrl.get().toString().toStdString()
+               : "")
+       << ")"
+       << ", "
+       << "Color: " << (result.color ? result.color->name().toStdString() : "")
+       << ", "
+       << "Show in mentions: " << (result.showInMentions ? "Yes" : "No");
+    return os;
+}
+
 void HighlightController::initialize(Settings &settings, Paths & /*paths*/)
 {
     this->rebuildListener_.addSetting(settings.enableSelfHighlight);
diff --git a/src/controllers/highlights/HighlightController.hpp b/src/controllers/highlights/HighlightController.hpp
index 3f4b37e579f..7e238d81737 100644
--- a/src/controllers/highlights/HighlightController.hpp
+++ b/src/controllers/highlights/HighlightController.hpp
@@ -1,13 +1,12 @@
 #pragma once
 
+#include "common/FlagsEnum.hpp"
 #include "common/Singleton.hpp"
 #include "common/UniqueAccess.hpp"
-#include "messages/MessageBuilder.hpp"
-#include "providers/twitch/TwitchBadge.hpp"
-#include "singletons/Paths.hpp"
-#include "singletons/Settings.hpp"
 
 #include <boost/optional.hpp>
+#include <pajlada/settings.hpp>
+#include <pajlada/settings/settinglistener.hpp>
 #include <QColor>
 #include <QUrl>
 
@@ -17,27 +16,20 @@
 
 namespace chatterino {
 
+class Badge;
+struct MessageParseArgs;
+enum class MessageFlag : int64_t;
+using MessageFlags = FlagsEnum<MessageFlag>;
+
 struct HighlightResult {
     HighlightResult(bool _alert, bool _playSound,
                     boost::optional<QUrl> _customSoundUrl,
-                    std::shared_ptr<QColor> _color, bool _showInMentions)
-        : alert(_alert)
-        , playSound(_playSound)
-        , customSoundUrl(std::move(_customSoundUrl))
-        , color(std::move(_color))
-        , showInMentions(_showInMentions)
-    {
-    }
+                    std::shared_ptr<QColor> _color, bool _showInMentions);
 
     /**
      * @brief Construct an empty HighlightResult with all side-effects disabled
      **/
-    static HighlightResult emptyResult()
-    {
-        return {
-            false, false, boost::none, nullptr, false,
-        };
-    }
+    static HighlightResult emptyResult();
 
     /**
      * @brief true if highlight should trigger the taskbar to flash
@@ -66,77 +58,21 @@ struct HighlightResult {
      **/
     bool showInMentions{false};
 
-    bool operator==(const HighlightResult &other) const
-    {
-        if (this->alert != other.alert)
-        {
-            return false;
-        }
-        if (this->playSound != other.playSound)
-        {
-            return false;
-        }
-        if (this->customSoundUrl != other.customSoundUrl)
-        {
-            return false;
-        }
-
-        if (this->color && other.color)
-        {
-            if (*this->color != *other.color)
-            {
-                return false;
-            }
-        }
-
-        if (this->showInMentions != other.showInMentions)
-        {
-            return false;
-        }
-
-        return true;
-    }
-
-    bool operator!=(const HighlightResult &other) const
-    {
-        return !(*this == other);
-    }
+    bool operator==(const HighlightResult &other) const;
+    bool operator!=(const HighlightResult &other) const;
 
     /**
      * @brief Returns true if no side-effect has been enabled
      **/
-    [[nodiscard]] bool empty() const
-    {
-        return !this->alert && !this->playSound &&
-               !this->customSoundUrl.has_value() && !this->color &&
-               !this->showInMentions;
-    }
+    [[nodiscard]] bool empty() const;
 
     /**
      * @brief Returns true if all side-effects have been enabled
      **/
-    [[nodiscard]] bool full() const
-    {
-        return this->alert && this->playSound &&
-               this->customSoundUrl.has_value() && this->color &&
-               this->showInMentions;
-    }
+    [[nodiscard]] bool full() const;
 
     friend std::ostream &operator<<(std::ostream &os,
-                                    const HighlightResult &result)
-    {
-        os << "Alert: " << (result.alert ? "Yes" : "No") << ", "
-           << "Play sound: " << (result.playSound ? "Yes" : "No") << " ("
-           << (result.customSoundUrl
-                   ? result.customSoundUrl.get().toString().toStdString()
-                   : "")
-           << ")"
-           << ", "
-           << "Color: "
-           << (result.color ? result.color->name().toStdString() : "") << ", "
-           << "Show in mentions: " << (result.showInMentions ? "Yes" : "No");
-        return os;
-    }
+                                    const HighlightResult &result);
 };
 
 struct HighlightCheck {
diff --git a/src/controllers/highlights/HighlightModel.cpp b/src/controllers/highlights/HighlightModel.cpp
index 19f052649da..13ff5ec6b71 100644
--- a/src/controllers/highlights/HighlightModel.cpp
+++ b/src/controllers/highlights/HighlightModel.cpp
@@ -1,6 +1,9 @@
-#include "HighlightModel.hpp"
+#include "controllers/highlights/HighlightModel.hpp"
 
 #include "Application.hpp"
+#include "common/SignalVectorModel.hpp"
+#include "controllers/highlights/HighlightPhrase.hpp"
+#include "providers/colors/ColorProvider.hpp"
 #include "singletons/Settings.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/StandardItemHelper.hpp"
diff --git a/src/controllers/highlights/HighlightModel.hpp b/src/controllers/highlights/HighlightModel.hpp
index 98fa78e00d9..7f20a9c6c39 100644
--- a/src/controllers/highlights/HighlightModel.hpp
+++ b/src/controllers/highlights/HighlightModel.hpp
@@ -1,12 +1,13 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/highlights/HighlightPhrase.hpp"
 
 #include <QObject>
 
 namespace chatterino {
 
+class HighlightPhrase;
+
 class HighlightModel : public SignalVectorModel<HighlightPhrase>
 {
 public:
diff --git a/src/controllers/highlights/HighlightPhrase.hpp b/src/controllers/highlights/HighlightPhrase.hpp
index 4cf9faff089..392f13e285f 100644
--- a/src/controllers/highlights/HighlightPhrase.hpp
+++ b/src/controllers/highlights/HighlightPhrase.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include "providers/colors/ColorProvider.hpp"
 #include "util/RapidjsonHelpers.hpp"
 #include "util/RapidJsonSerializeQString.hpp"
 
diff --git a/src/controllers/highlights/UserHighlightModel.cpp b/src/controllers/highlights/UserHighlightModel.cpp
index 8a6596a7489..42aeb819fdb 100644
--- a/src/controllers/highlights/UserHighlightModel.cpp
+++ b/src/controllers/highlights/UserHighlightModel.cpp
@@ -2,6 +2,7 @@
 
 #include "Application.hpp"
 #include "controllers/highlights/HighlightModel.hpp"
+#include "controllers/highlights/HighlightPhrase.hpp"
 #include "singletons/Settings.hpp"
 #include "util/StandardItemHelper.hpp"
 
diff --git a/src/controllers/highlights/UserHighlightModel.hpp b/src/controllers/highlights/UserHighlightModel.hpp
index 11edd2c47b5..fa2811ddcb6 100644
--- a/src/controllers/highlights/UserHighlightModel.hpp
+++ b/src/controllers/highlights/UserHighlightModel.hpp
@@ -1,13 +1,13 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/highlights/HighlightPhrase.hpp"
 
 #include <QObject>
 
 namespace chatterino {
 
 class HighlightController;
+class HighlightPhrase;
 
 class UserHighlightModel : public SignalVectorModel<HighlightPhrase>
 {
diff --git a/src/controllers/hotkeys/ActionNames.hpp b/src/controllers/hotkeys/ActionNames.hpp
index 538fc42e1b7..8d5700ac428 100644
--- a/src/controllers/hotkeys/ActionNames.hpp
+++ b/src/controllers/hotkeys/ActionNames.hpp
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "HotkeyCategory.hpp"
+#include "controllers/hotkeys/HotkeyCategory.hpp"
 
 #include <QString>
 
diff --git a/src/controllers/hotkeys/HotkeyController.cpp b/src/controllers/hotkeys/HotkeyController.cpp
index f45b98a61f9..df6639756be 100644
--- a/src/controllers/hotkeys/HotkeyController.cpp
+++ b/src/controllers/hotkeys/HotkeyController.cpp
@@ -1,6 +1,7 @@
 #include "controllers/hotkeys/HotkeyController.hpp"
 
 #include "common/QLogging.hpp"
+#include "controllers/hotkeys/Hotkey.hpp"
 #include "controllers/hotkeys/HotkeyCategory.hpp"
 #include "controllers/hotkeys/HotkeyModel.hpp"
 #include "singletons/Settings.hpp"
diff --git a/src/controllers/hotkeys/HotkeyModel.cpp b/src/controllers/hotkeys/HotkeyModel.cpp
index 33fd406434f..2089bab5a26 100644
--- a/src/controllers/hotkeys/HotkeyModel.cpp
+++ b/src/controllers/hotkeys/HotkeyModel.cpp
@@ -1,6 +1,7 @@
 #include "controllers/hotkeys/HotkeyModel.hpp"
 
 #include "common/QLogging.hpp"
+#include "controllers/hotkeys/Hotkey.hpp"
 #include "util/StandardItemHelper.hpp"
 
 namespace chatterino {
diff --git a/src/controllers/hotkeys/HotkeyModel.hpp b/src/controllers/hotkeys/HotkeyModel.hpp
index f23b9537314..98c59ca5eac 100644
--- a/src/controllers/hotkeys/HotkeyModel.hpp
+++ b/src/controllers/hotkeys/HotkeyModel.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/hotkeys/Hotkey.hpp"
 #include "util/QStringHash.hpp"
 
 #include <unordered_map>
@@ -9,6 +8,7 @@
 namespace chatterino {
 
 class HotkeyController;
+class Hotkey;
 
 class HotkeyModel : public SignalVectorModel<std::shared_ptr<Hotkey>>
 {
diff --git a/src/controllers/ignores/IgnoreController.cpp b/src/controllers/ignores/IgnoreController.cpp
index 0e3e0601877..e3df12e4755 100644
--- a/src/controllers/ignores/IgnoreController.cpp
+++ b/src/controllers/ignores/IgnoreController.cpp
@@ -1,6 +1,8 @@
 #include "controllers/ignores/IgnoreController.hpp"
 
+#include "Application.hpp"
 #include "common/QLogging.hpp"
+#include "controllers/accounts/AccountController.hpp"
 #include "controllers/ignores/IgnorePhrase.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
 #include "singletons/Settings.hpp"
diff --git a/src/controllers/ignores/IgnoreModel.cpp b/src/controllers/ignores/IgnoreModel.cpp
index cbecbb4d9f9..3702a427061 100644
--- a/src/controllers/ignores/IgnoreModel.cpp
+++ b/src/controllers/ignores/IgnoreModel.cpp
@@ -1,6 +1,7 @@
-#include "IgnoreModel.hpp"
+#include "controllers/ignores/IgnoreModel.hpp"
 
 #include "Application.hpp"
+#include "controllers/ignores/IgnorePhrase.hpp"
 #include "singletons/Settings.hpp"
 #include "util/StandardItemHelper.hpp"
 
diff --git a/src/controllers/ignores/IgnoreModel.hpp b/src/controllers/ignores/IgnoreModel.hpp
index 9904d78748a..915a880bdad 100644
--- a/src/controllers/ignores/IgnoreModel.hpp
+++ b/src/controllers/ignores/IgnoreModel.hpp
@@ -1,12 +1,13 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/ignores/IgnorePhrase.hpp"
 
 #include <QObject>
 
 namespace chatterino {
 
+class IgnorePhrase;
+
 class IgnoreModel : public SignalVectorModel<IgnorePhrase>
 {
 public:
diff --git a/src/controllers/ignores/IgnorePhrase.cpp b/src/controllers/ignores/IgnorePhrase.cpp
index a7b8519e92c..d5f7a301e56 100644
--- a/src/controllers/ignores/IgnorePhrase.cpp
+++ b/src/controllers/ignores/IgnorePhrase.cpp
@@ -3,6 +3,7 @@
 #include "Application.hpp"
 #include "controllers/accounts/AccountController.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
+#include "singletons/Settings.hpp"
 
 namespace chatterino {
 
@@ -112,4 +113,10 @@ bool IgnorePhrase::containsEmote() const
     return !this->emotes_.empty();
 }
 
+IgnorePhrase IgnorePhrase::createEmpty()
+{
+    return IgnorePhrase(QString(), false, false,
+                        getSettings()->ignoredPhraseReplace.getValue(), true);
+}
+
 }  // namespace chatterino
diff --git a/src/controllers/ignores/IgnorePhrase.hpp b/src/controllers/ignores/IgnorePhrase.hpp
index 5c311b66978..5ff129fd042 100644
--- a/src/controllers/ignores/IgnorePhrase.hpp
+++ b/src/controllers/ignores/IgnorePhrase.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
-#include "messages/Emote.hpp"
-#include "singletons/Settings.hpp"
+#include "common/Aliases.hpp"
 #include "util/RapidjsonHelpers.hpp"
 #include "util/RapidJsonSerializeQString.hpp"
 
@@ -9,10 +8,14 @@
 #include <QRegularExpression>
 #include <QString>
 
+#include <memory>
 #include <unordered_map>
 
 namespace chatterino {
 
+struct Emote;
+using EmotePtr = std::shared_ptr<const Emote>;
+
 class IgnorePhrase
 {
 public:
@@ -43,6 +46,8 @@ class IgnorePhrase
 
     bool containsEmote() const;
 
+    static IgnorePhrase createEmpty();
+
 private:
     QString pattern_;
     bool isRegex_;
@@ -82,10 +87,7 @@ struct Deserialize<chatterino::IgnorePhrase> {
         if (!value.IsObject())
         {
             PAJLADA_REPORT_ERROR(error)
-            return chatterino::IgnorePhrase(
-                QString(), false, false,
-                ::chatterino::getSettings()->ignoredPhraseReplace.getValue(),
-                true);
+            return chatterino::IgnorePhrase::createEmpty();
         }
 
         QString _pattern;
diff --git a/src/controllers/moderationactions/ModerationAction.cpp b/src/controllers/moderationactions/ModerationAction.cpp
index 7f4039f98f8..de26613c2c6 100644
--- a/src/controllers/moderationactions/ModerationAction.cpp
+++ b/src/controllers/moderationactions/ModerationAction.cpp
@@ -1,6 +1,7 @@
-#include "ModerationAction.hpp"
+#include "controllers/moderationactions/ModerationAction.hpp"
 
 #include "Application.hpp"
+#include "debug/AssertInGuiThread.hpp"
 #include "messages/Image.hpp"
 #include "singletons/Resources.hpp"
 
diff --git a/src/controllers/moderationactions/ModerationActionModel.cpp b/src/controllers/moderationactions/ModerationActionModel.cpp
index 00c8f6e7a73..d6595556d51 100644
--- a/src/controllers/moderationactions/ModerationActionModel.cpp
+++ b/src/controllers/moderationactions/ModerationActionModel.cpp
@@ -1,5 +1,6 @@
-#include "ModerationActionModel.hpp"
+#include "controllers/moderationactions/ModerationActionModel.hpp"
 
+#include "controllers/moderationactions/ModerationAction.hpp"
 #include "util/StandardItemHelper.hpp"
 
 namespace chatterino {
diff --git a/src/controllers/moderationactions/ModerationActionModel.hpp b/src/controllers/moderationactions/ModerationActionModel.hpp
index eb62bab9287..065e6f417ad 100644
--- a/src/controllers/moderationactions/ModerationActionModel.hpp
+++ b/src/controllers/moderationactions/ModerationActionModel.hpp
@@ -1,12 +1,13 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/moderationactions/ModerationAction.hpp"
 
 #include <QObject>
 
 namespace chatterino {
 
+class ModerationAction;
+
 class ModerationActionModel : public SignalVectorModel<ModerationAction>
 {
 public:
diff --git a/src/controllers/nicknames/Nickname.hpp b/src/controllers/nicknames/Nickname.hpp
index 79cb264264d..529f5fa0db9 100644
--- a/src/controllers/nicknames/Nickname.hpp
+++ b/src/controllers/nicknames/Nickname.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include "controllers/accounts/AccountController.hpp"
 #include "util/RapidjsonHelpers.hpp"
 #include "util/RapidJsonSerializeQString.hpp"
 
diff --git a/src/controllers/nicknames/NicknamesModel.cpp b/src/controllers/nicknames/NicknamesModel.cpp
index 2028fa3e2d3..4277b128f65 100644
--- a/src/controllers/nicknames/NicknamesModel.cpp
+++ b/src/controllers/nicknames/NicknamesModel.cpp
@@ -1,6 +1,7 @@
-#include "NicknamesModel.hpp"
+#include "controllers/nicknames/NicknamesModel.hpp"
 
 #include "Application.hpp"
+#include "controllers/nicknames/Nickname.hpp"
 #include "providers/twitch/api/Helix.hpp"
 #include "singletons/Settings.hpp"
 #include "util/StandardItemHelper.hpp"
diff --git a/src/controllers/nicknames/NicknamesModel.hpp b/src/controllers/nicknames/NicknamesModel.hpp
index 7cd034eacdb..aab622203f3 100644
--- a/src/controllers/nicknames/NicknamesModel.hpp
+++ b/src/controllers/nicknames/NicknamesModel.hpp
@@ -1,12 +1,13 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/nicknames/Nickname.hpp"
 
 #include <QObject>
 
 namespace chatterino {
 
+class Nickname;
+
 class NicknamesModel : public SignalVectorModel<Nickname>
 {
 public:
diff --git a/src/controllers/notifications/NotificationController.cpp b/src/controllers/notifications/NotificationController.cpp
index 8fd5ea540f2..1205e44b565 100644
--- a/src/controllers/notifications/NotificationController.cpp
+++ b/src/controllers/notifications/NotificationController.cpp
@@ -5,9 +5,11 @@
 #include "common/Outcome.hpp"
 #include "common/QLogging.hpp"
 #include "controllers/notifications/NotificationModel.hpp"
+#include "messages/Message.hpp"
 #include "providers/twitch/api/Helix.hpp"
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "providers/twitch/TwitchMessageBuilder.hpp"
+#include "singletons/Settings.hpp"
 #include "singletons/Toasts.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/Helpers.hpp"
diff --git a/src/controllers/notifications/NotificationController.hpp b/src/controllers/notifications/NotificationController.hpp
index 6828c3be21d..f6cfce6b852 100644
--- a/src/controllers/notifications/NotificationController.hpp
+++ b/src/controllers/notifications/NotificationController.hpp
@@ -1,8 +1,8 @@
 #pragma once
 
+#include "common/ChatterinoSetting.hpp"
 #include "common/SignalVector.hpp"
 #include "common/Singleton.hpp"
-#include "singletons/Settings.hpp"
 
 #include <QTimer>
 
diff --git a/src/controllers/notifications/NotificationModel.hpp b/src/controllers/notifications/NotificationModel.hpp
index 6d4856a8d7e..8ac0e39bd23 100644
--- a/src/controllers/notifications/NotificationModel.hpp
+++ b/src/controllers/notifications/NotificationModel.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/notifications/NotificationController.hpp"
 
 #include <QObject>
 
diff --git a/src/controllers/pings/MutedChannelModel.hpp b/src/controllers/pings/MutedChannelModel.hpp
index 5cc036ec1c4..1cc78c2c3b8 100644
--- a/src/controllers/pings/MutedChannelModel.hpp
+++ b/src/controllers/pings/MutedChannelModel.hpp
@@ -1,14 +1,11 @@
 #pragma once
 
 #include "common/SignalVectorModel.hpp"
-#include "controllers/notifications/NotificationController.hpp"
 
 #include <QObject>
 
 namespace chatterino {
 
-class MutedChannelController;
-
 class MutedChannelModel : public SignalVectorModel<QString>
 {
     explicit MutedChannelModel(QObject *parent);
diff --git a/src/messages/Emote.hpp b/src/messages/Emote.hpp
index 2648c337220..d157abbfcf5 100644
--- a/src/messages/Emote.hpp
+++ b/src/messages/Emote.hpp
@@ -1,13 +1,13 @@
 #pragma once
 
-#include "common/Atomic.hpp"
-#include "messages/Image.hpp"
+#include "common/Aliases.hpp"
 #include "messages/ImageSet.hpp"
 
 #include <boost/optional.hpp>
 
 #include <functional>
 #include <memory>
+#include <mutex>
 #include <unordered_map>
 
 namespace chatterino {
@@ -55,9 +55,6 @@ class EmoteMap : public std::unordered_map<EmoteName, EmotePtr>
     EmoteMap::const_iterator findEmote(const QString &emoteNameHint,
                                        const QString &emoteID) const;
 };
-using EmoteIdMap = std::unordered_map<EmoteId, EmotePtr>;
-using WeakEmoteMap = std::unordered_map<EmoteName, std::weak_ptr<const Emote>>;
-using WeakEmoteIdMap = std::unordered_map<EmoteId, std::weak_ptr<const Emote>>;
 
 static const std::shared_ptr<const EmoteMap> EMPTY_EMOTE_MAP = std::make_shared<
     const EmoteMap>();  // NOLINT(cert-err58-cpp) -- assume this doesn't throw an exception
diff --git a/src/messages/Image.cpp b/src/messages/Image.cpp
index f7ef40ad92d..7c6d130862b 100644
--- a/src/messages/Image.cpp
+++ b/src/messages/Image.cpp
@@ -3,6 +3,8 @@
 #include "Application.hpp"
 #include "common/Common.hpp"
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
+#include "common/Outcome.hpp"
 #include "common/QLogging.hpp"
 #include "debug/AssertInGuiThread.hpp"
 #include "debug/Benchmark.hpp"
@@ -347,6 +349,11 @@ ImagePtr Image::getEmpty()
     return empty;
 }
 
+ImagePtr getEmptyImagePtr()
+{
+    return Image::getEmpty();
+}
+
 Image::Image()
     : empty_(true)
 {
diff --git a/src/messages/Image.hpp b/src/messages/Image.hpp
index eae285c8ab4..6bd20ea3760 100644
--- a/src/messages/Image.hpp
+++ b/src/messages/Image.hpp
@@ -102,6 +102,9 @@ class Image : public std::enable_shared_from_this<Image>, boost::noncopyable
     friend class ImageExpirationPool;
 };
 
+// forward-declarable function that calls Image::getEmpty() under the hood.
+ImagePtr getEmptyImagePtr();
+
 class ImageExpirationPool
 {
 private:
diff --git a/src/messages/ImageSet.cpp b/src/messages/ImageSet.cpp
index 1dccf10e90f..09294f7664e 100644
--- a/src/messages/ImageSet.cpp
+++ b/src/messages/ImageSet.cpp
@@ -1,5 +1,6 @@
 #include "messages/ImageSet.hpp"
 
+#include "messages/Image.hpp"
 #include "singletons/Settings.hpp"
 
 namespace chatterino {
diff --git a/src/messages/ImageSet.hpp b/src/messages/ImageSet.hpp
index 4e484eedb3e..49c94eed0cb 100644
--- a/src/messages/ImageSet.hpp
+++ b/src/messages/ImageSet.hpp
@@ -1,15 +1,22 @@
 #pragma once
 
-#include "messages/Image.hpp"
+#include "common/Aliases.hpp"
+
+#include <memory>
 
 namespace chatterino {
 
+class Image;
+using ImagePtr = std::shared_ptr<Image>;
+ImagePtr getEmptyImagePtr();
+
 class ImageSet
 {
 public:
     ImageSet();
-    ImageSet(const ImagePtr &image1, const ImagePtr &image2 = Image::getEmpty(),
-             const ImagePtr &image3 = Image::getEmpty());
+    ImageSet(const ImagePtr &image1,
+             const ImagePtr &image2 = getEmptyImagePtr(),
+             const ImagePtr &image3 = getEmptyImagePtr());
     ImageSet(const Url &image1, const Url &image2 = {}, const Url &image3 = {});
 
     void setImage1(const ImagePtr &image);
diff --git a/src/messages/Message.cpp b/src/messages/Message.cpp
index af5417f93a5..cb005a84355 100644
--- a/src/messages/Message.cpp
+++ b/src/messages/Message.cpp
@@ -2,10 +2,14 @@
 
 #include "Application.hpp"
 #include "MessageElement.hpp"
+#include "providers/colors/ColorProvider.hpp"
 #include "providers/twitch/PubSubActions.hpp"
+#include "providers/twitch/TwitchBadge.hpp"
+#include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
 #include "util/DebugCount.hpp"
 #include "util/IrcHelpers.hpp"
+#include "widgets/helper/ScrollbarHighlight.hpp"
 
 using SBHighlight = chatterino::ScrollbarHighlight;
 
diff --git a/src/messages/Message.hpp b/src/messages/Message.hpp
index baba77e5b48..fcecef21190 100644
--- a/src/messages/Message.hpp
+++ b/src/messages/Message.hpp
@@ -1,11 +1,10 @@
 #pragma once
 
 #include "common/FlagsEnum.hpp"
-#include "providers/twitch/TwitchBadge.hpp"
 #include "util/QStringHash.hpp"
-#include "widgets/helper/ScrollbarHighlight.hpp"
 
 #include <boost/noncopyable.hpp>
+#include <QColor>
 #include <QTime>
 
 #include <cinttypes>
@@ -15,6 +14,8 @@
 namespace chatterino {
 class MessageElement;
 class MessageThread;
+class Badge;
+class ScrollbarHighlight;
 
 enum class MessageFlag : int64_t {
     None = 0LL,
diff --git a/src/messages/MessageBuilder.hpp b/src/messages/MessageBuilder.hpp
index 12e21f76e41..96ab6658691 100644
--- a/src/messages/MessageBuilder.hpp
+++ b/src/messages/MessageBuilder.hpp
@@ -1,10 +1,12 @@
 #pragma once
 
-#include "messages/MessageElement.hpp"
+#include "messages/MessageColor.hpp"
 
 #include <QRegularExpression>
+#include <QTime>
 
 #include <ctime>
+#include <memory>
 #include <utility>
 
 namespace chatterino {
@@ -16,6 +18,11 @@ struct AutomodInfoAction;
 struct Message;
 using MessagePtr = std::shared_ptr<const Message>;
 
+class MessageElement;
+class TextElement;
+struct Emote;
+using EmotePtr = std::shared_ptr<const Emote>;
+
 struct SystemMessageTag {
 };
 struct TimeoutMessageTag {
diff --git a/src/messages/MessageElement.cpp b/src/messages/MessageElement.cpp
index 3dfc12077c3..ea76b591868 100644
--- a/src/messages/MessageElement.cpp
+++ b/src/messages/MessageElement.cpp
@@ -1,8 +1,10 @@
 #include "messages/MessageElement.hpp"
 
 #include "Application.hpp"
+#include "controllers/moderationactions/ModerationAction.hpp"
 #include "debug/Benchmark.hpp"
 #include "messages/Emote.hpp"
+#include "messages/Image.hpp"
 #include "messages/layouts/MessageLayoutContainer.hpp"
 #include "messages/layouts/MessageLayoutElement.hpp"
 #include "providers/emoji/Emojis.hpp"
diff --git a/src/messages/MessageParseArgs.hpp b/src/messages/MessageParseArgs.hpp
deleted file mode 100644
index 471d1d64881..00000000000
--- a/src/messages/MessageParseArgs.hpp
+++ /dev/null
@@ -1,5 +0,0 @@
-#pragma once
-
-namespace chatterino {
-
-}  // namespace chatterino
diff --git a/src/messages/SharedMessageBuilder.cpp b/src/messages/SharedMessageBuilder.cpp
index 1a0fa9dbeb9..c428375d33d 100644
--- a/src/messages/SharedMessageBuilder.cpp
+++ b/src/messages/SharedMessageBuilder.cpp
@@ -5,7 +5,10 @@
 #include "controllers/highlights/HighlightController.hpp"
 #include "controllers/ignores/IgnoreController.hpp"
 #include "controllers/ignores/IgnorePhrase.hpp"
+#include "controllers/nicknames/Nickname.hpp"
+#include "messages/Message.hpp"
 #include "messages/MessageElement.hpp"
+#include "providers/twitch/TwitchBadge.hpp"
 #include "singletons/Settings.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/Helpers.hpp"
diff --git a/src/messages/SharedMessageBuilder.hpp b/src/messages/SharedMessageBuilder.hpp
index db055775162..5dce1ad9f95 100644
--- a/src/messages/SharedMessageBuilder.hpp
+++ b/src/messages/SharedMessageBuilder.hpp
@@ -1,8 +1,8 @@
+#pragma once
+
 #include "common/Aliases.hpp"
 #include "common/Outcome.hpp"
 #include "messages/MessageBuilder.hpp"
-#include "messages/MessageColor.hpp"
-#include "providers/twitch/TwitchBadge.hpp"
 
 #include <IrcMessage>
 #include <QColor>
@@ -10,6 +10,9 @@
 
 namespace chatterino {
 
+class Badge;
+class Channel;
+
 class SharedMessageBuilder : public MessageBuilder
 {
 public:
diff --git a/src/messages/layouts/MessageLayout.cpp b/src/messages/layouts/MessageLayout.cpp
index 902e7ede055..d00d092e409 100644
--- a/src/messages/layouts/MessageLayout.cpp
+++ b/src/messages/layouts/MessageLayout.cpp
@@ -3,8 +3,11 @@
 #include "Application.hpp"
 #include "debug/Benchmark.hpp"
 #include "messages/layouts/MessageLayoutContainer.hpp"
+#include "messages/layouts/MessageLayoutElement.hpp"
 #include "messages/Message.hpp"
 #include "messages/MessageElement.hpp"
+#include "messages/Selection.hpp"
+#include "providers/colors/ColorProvider.hpp"
 #include "singletons/Emotes.hpp"
 #include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
diff --git a/src/messages/layouts/MessageLayoutContainer.hpp b/src/messages/layouts/MessageLayoutContainer.hpp
index d9200d8e7b7..41bb0d941c8 100644
--- a/src/messages/layouts/MessageLayoutContainer.hpp
+++ b/src/messages/layouts/MessageLayoutContainer.hpp
@@ -2,8 +2,6 @@
 
 #include "common/Common.hpp"
 #include "common/FlagsEnum.hpp"
-#include "messages/layouts/MessageLayoutElement.hpp"
-#include "messages/Selection.hpp"
 
 #include <QPoint>
 #include <QRect>
@@ -18,6 +16,8 @@ namespace chatterino {
 enum class MessageFlag : int64_t;
 enum class FirstWord { Neutral, RTL, LTR };
 using MessageFlags = FlagsEnum<MessageFlag>;
+class MessageLayoutElement;
+struct Selection;
 
 struct Margin {
     int top;
diff --git a/src/messages/layouts/MessageLayoutElement.hpp b/src/messages/layouts/MessageLayoutElement.hpp
index 13ea77c0910..86e662e54ad 100644
--- a/src/messages/layouts/MessageLayoutElement.hpp
+++ b/src/messages/layouts/MessageLayoutElement.hpp
@@ -2,8 +2,6 @@
 
 #include "common/FlagsEnum.hpp"
 #include "messages/Link.hpp"
-#include "messages/MessageColor.hpp"
-#include "messages/MessageElement.hpp"
 
 #include <boost/noncopyable.hpp>
 #include <pajlada/signals/signalholder.hpp>
@@ -22,6 +20,7 @@ class MessageElement;
 class Image;
 using ImagePtr = std::shared_ptr<Image>;
 enum class FontStyle : uint8_t;
+enum class MessageElementFlag : int64_t;
 
 class MessageLayoutElement : boost::noncopyable
 {
diff --git a/src/messages/search/AuthorPredicate.cpp b/src/messages/search/AuthorPredicate.cpp
index c84b5d2e33e..adc3655778e 100644
--- a/src/messages/search/AuthorPredicate.cpp
+++ b/src/messages/search/AuthorPredicate.cpp
@@ -1,5 +1,6 @@
 #include "messages/search/AuthorPredicate.hpp"
 
+#include "messages/Message.hpp"
 #include "util/Qt.hpp"
 
 namespace chatterino {
diff --git a/src/messages/search/AuthorPredicate.hpp b/src/messages/search/AuthorPredicate.hpp
index 2fb25c98582..19a2ac8fbef 100644
--- a/src/messages/search/AuthorPredicate.hpp
+++ b/src/messages/search/AuthorPredicate.hpp
@@ -2,6 +2,9 @@
 
 #include "messages/search/MessagePredicate.hpp"
 
+#include <QString>
+#include <QStringList>
+
 namespace chatterino {
 
 /**
diff --git a/src/messages/search/BadgePredicate.cpp b/src/messages/search/BadgePredicate.cpp
index 555a2b36cf7..dc3fbafa8cd 100644
--- a/src/messages/search/BadgePredicate.cpp
+++ b/src/messages/search/BadgePredicate.cpp
@@ -1,5 +1,7 @@
 #include "messages/search/BadgePredicate.hpp"
 
+#include "messages/Message.hpp"
+#include "providers/twitch/TwitchBadge.hpp"
 #include "util/Qt.hpp"
 
 namespace chatterino {
diff --git a/src/messages/search/BadgePredicate.hpp b/src/messages/search/BadgePredicate.hpp
index 510f6e057f8..f5d4901afdd 100644
--- a/src/messages/search/BadgePredicate.hpp
+++ b/src/messages/search/BadgePredicate.hpp
@@ -2,6 +2,9 @@
 
 #include "messages/search/MessagePredicate.hpp"
 
+#include <QString>
+#include <QStringList>
+
 namespace chatterino {
 
 /**
diff --git a/src/messages/search/ChannelPredicate.cpp b/src/messages/search/ChannelPredicate.cpp
index 2f7f3f3fdb1..665f96a973e 100644
--- a/src/messages/search/ChannelPredicate.cpp
+++ b/src/messages/search/ChannelPredicate.cpp
@@ -1,5 +1,6 @@
 #include "messages/search/ChannelPredicate.hpp"
 
+#include "messages/Message.hpp"
 #include "util/Qt.hpp"
 
 namespace chatterino {
diff --git a/src/messages/search/ChannelPredicate.hpp b/src/messages/search/ChannelPredicate.hpp
index a9f189089b5..663a6c15514 100644
--- a/src/messages/search/ChannelPredicate.hpp
+++ b/src/messages/search/ChannelPredicate.hpp
@@ -2,6 +2,9 @@
 
 #include "messages/search/MessagePredicate.hpp"
 
+#include <QString>
+#include <QStringList>
+
 namespace chatterino {
 
 /**
diff --git a/src/messages/search/LinkPredicate.cpp b/src/messages/search/LinkPredicate.cpp
index a592e401503..be400feb7f6 100644
--- a/src/messages/search/LinkPredicate.cpp
+++ b/src/messages/search/LinkPredicate.cpp
@@ -1,6 +1,7 @@
 #include "messages/search/LinkPredicate.hpp"
 
 #include "common/LinkParser.hpp"
+#include "messages/Message.hpp"
 #include "util/Qt.hpp"
 
 namespace chatterino {
diff --git a/src/messages/search/LinkPredicate.hpp b/src/messages/search/LinkPredicate.hpp
index c6419402fe3..4bda67c8b15 100644
--- a/src/messages/search/LinkPredicate.hpp
+++ b/src/messages/search/LinkPredicate.hpp
@@ -2,6 +2,8 @@
 
 #include "messages/search/MessagePredicate.hpp"
 
+#include <QString>
+
 namespace chatterino {
 
 /**
diff --git a/src/messages/search/MessageFlagsPredicate.hpp b/src/messages/search/MessageFlagsPredicate.hpp
index a74d72ae2a8..d1e37873f64 100644
--- a/src/messages/search/MessageFlagsPredicate.hpp
+++ b/src/messages/search/MessageFlagsPredicate.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include "common/FlagsEnum.hpp"
+#include "messages/Message.hpp"
 #include "messages/search/MessagePredicate.hpp"
 
 namespace chatterino {
diff --git a/src/messages/search/MessagePredicate.hpp b/src/messages/search/MessagePredicate.hpp
index 79806bd62d3..7a6a9a07c9a 100644
--- a/src/messages/search/MessagePredicate.hpp
+++ b/src/messages/search/MessagePredicate.hpp
@@ -1,11 +1,11 @@
 #pragma once
 
-#include "messages/Message.hpp"
-
 #include <memory>
 
 namespace chatterino {
 
+struct Message;
+
 /**
  * @brief Abstract base class for message predicates.
  *
diff --git a/src/messages/search/RegexPredicate.cpp b/src/messages/search/RegexPredicate.cpp
index 04a22f62477..02eeec6c849 100644
--- a/src/messages/search/RegexPredicate.cpp
+++ b/src/messages/search/RegexPredicate.cpp
@@ -1,5 +1,7 @@
 #include "RegexPredicate.hpp"
 
+#include "messages/Message.hpp"
+
 namespace chatterino {
 
 RegexPredicate::RegexPredicate(const QString &regex, bool negate)
diff --git a/src/messages/search/RegexPredicate.hpp b/src/messages/search/RegexPredicate.hpp
index 594b985f00d..63e68cabd68 100644
--- a/src/messages/search/RegexPredicate.hpp
+++ b/src/messages/search/RegexPredicate.hpp
@@ -3,6 +3,8 @@
 #include "messages/search/MessagePredicate.hpp"
 #include "QRegularExpression"
 
+#include <QString>
+
 namespace chatterino {
 
 /**
diff --git a/src/messages/search/SubstringPredicate.cpp b/src/messages/search/SubstringPredicate.cpp
index 736cb2cc100..36e4b8e87d0 100644
--- a/src/messages/search/SubstringPredicate.cpp
+++ b/src/messages/search/SubstringPredicate.cpp
@@ -1,5 +1,7 @@
 #include "messages/search/SubstringPredicate.hpp"
 
+#include "messages/Message.hpp"
+
 namespace chatterino {
 
 SubstringPredicate::SubstringPredicate(const QString &search)
diff --git a/src/messages/search/SubstringPredicate.hpp b/src/messages/search/SubstringPredicate.hpp
index e6b99f11be8..1d5f2b85848 100644
--- a/src/messages/search/SubstringPredicate.hpp
+++ b/src/messages/search/SubstringPredicate.hpp
@@ -2,6 +2,8 @@
 
 #include "messages/search/MessagePredicate.hpp"
 
+#include <QString>
+
 namespace chatterino {
 
 /**
diff --git a/src/messages/search/SubtierPredicate.cpp b/src/messages/search/SubtierPredicate.cpp
index 81db09f28d0..2dc79fc3518 100644
--- a/src/messages/search/SubtierPredicate.cpp
+++ b/src/messages/search/SubtierPredicate.cpp
@@ -1,5 +1,7 @@
 #include "messages/search/SubtierPredicate.hpp"
 
+#include "messages/Message.hpp"
+#include "providers/twitch/TwitchBadge.hpp"
 #include "util/Qt.hpp"
 
 namespace chatterino {
diff --git a/src/messages/search/SubtierPredicate.hpp b/src/messages/search/SubtierPredicate.hpp
index bb5caba2a5c..cf24defc8b5 100644
--- a/src/messages/search/SubtierPredicate.hpp
+++ b/src/messages/search/SubtierPredicate.hpp
@@ -2,6 +2,9 @@
 
 #include "messages/search/MessagePredicate.hpp"
 
+#include <QString>
+#include <QStringList>
+
 namespace chatterino {
 
 /**
diff --git a/src/providers/IvrApi.cpp b/src/providers/IvrApi.cpp
index 6b19dc92830..26b4088e5eb 100644
--- a/src/providers/IvrApi.cpp
+++ b/src/providers/IvrApi.cpp
@@ -1,5 +1,6 @@
 #include "IvrApi.hpp"
 
+#include "common/NetworkResult.hpp"
 #include "common/Outcome.hpp"
 #include "common/QLogging.hpp"
 
diff --git a/src/providers/IvrApi.hpp b/src/providers/IvrApi.hpp
index 74d21e1164d..9aca1454381 100644
--- a/src/providers/IvrApi.hpp
+++ b/src/providers/IvrApi.hpp
@@ -1,10 +1,11 @@
 #pragma once
 
 #include "common/NetworkRequest.hpp"
-#include "messages/Link.hpp"
 #include "providers/twitch/TwitchEmotes.hpp"
 
 #include <boost/noncopyable.hpp>
+#include <QJsonArray>
+#include <QJsonObject>
 
 #include <functional>
 
diff --git a/src/providers/LinkResolver.cpp b/src/providers/LinkResolver.cpp
index b0d8f5a93a3..320fe569c4d 100644
--- a/src/providers/LinkResolver.cpp
+++ b/src/providers/LinkResolver.cpp
@@ -1,8 +1,9 @@
 #include "providers/LinkResolver.hpp"
 
-#include "common/Common.hpp"
 #include "common/Env.hpp"
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
+#include "common/Outcome.hpp"
 #include "messages/Image.hpp"
 #include "messages/Link.hpp"
 #include "singletons/Settings.hpp"
diff --git a/src/providers/LinkResolver.hpp b/src/providers/LinkResolver.hpp
index 9d52ce38392..df4e7efd490 100644
--- a/src/providers/LinkResolver.hpp
+++ b/src/providers/LinkResolver.hpp
@@ -1,14 +1,17 @@
 #pragma once
 
-#include "messages/Image.hpp"
-#include "messages/Link.hpp"
-
+#include <QObject>
 #include <QString>
 
 #include <functional>
+#include <memory>
 
 namespace chatterino {
 
+class Image;
+struct Link;
+using ImagePtr = std::shared_ptr<Image>;
+
 class LinkResolver
 {
 public:
diff --git a/src/providers/RecentMessagesApi.cpp b/src/providers/RecentMessagesApi.cpp
index 48c9d7a42b6..1544b74d2fd 100644
--- a/src/providers/RecentMessagesApi.cpp
+++ b/src/providers/RecentMessagesApi.cpp
@@ -1,10 +1,12 @@
-#include "RecentMessagesApi.hpp"
+#include "providers/RecentMessagesApi.hpp"
 
 #include "common/Channel.hpp"
 #include "common/Common.hpp"
 #include "common/Env.hpp"
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/QLogging.hpp"
+#include "messages/Message.hpp"
 #include "providers/twitch/IrcMessageHandler.hpp"
 #include "providers/twitch/TwitchChannel.hpp"
 #include "providers/twitch/TwitchMessageBuilder.hpp"
@@ -16,6 +18,7 @@
 #include <QJsonArray>
 #include <QJsonObject>
 #include <QUrl>
+#include <QUrlQuery>
 
 namespace chatterino {
 
diff --git a/src/providers/bttv/BttvEmotes.cpp b/src/providers/bttv/BttvEmotes.cpp
index fa25f733e92..a65d99f33d9 100644
--- a/src/providers/bttv/BttvEmotes.cpp
+++ b/src/providers/bttv/BttvEmotes.cpp
@@ -1,7 +1,7 @@
 #include "providers/bttv/BttvEmotes.hpp"
 
-#include "common/Common.hpp"
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/QLogging.hpp"
 #include "messages/Emote.hpp"
 #include "messages/Image.hpp"
diff --git a/src/providers/bttv/BttvEmotes.hpp b/src/providers/bttv/BttvEmotes.hpp
index 52fc9b6aa5d..69340ad9964 100644
--- a/src/providers/bttv/BttvEmotes.hpp
+++ b/src/providers/bttv/BttvEmotes.hpp
@@ -1,9 +1,9 @@
 #pragma once
 
-#include "boost/optional.hpp"
 #include "common/Aliases.hpp"
 #include "common/Atomic.hpp"
-#include "providers/twitch/TwitchChannel.hpp"
+
+#include <boost/optional.hpp>
 
 #include <memory>
 
@@ -12,6 +12,7 @@ namespace chatterino {
 struct Emote;
 using EmotePtr = std::shared_ptr<const Emote>;
 class EmoteMap;
+class Channel;
 
 class BttvEmotes final
 {
diff --git a/src/providers/bttv/LoadBttvChannelEmote.cpp b/src/providers/bttv/LoadBttvChannelEmote.cpp
deleted file mode 100644
index 5ceee36c6d8..00000000000
--- a/src/providers/bttv/LoadBttvChannelEmote.cpp
+++ /dev/null
@@ -1,15 +0,0 @@
-#include "LoadBttvChannelEmote.hpp"
-
-#include "common/Common.hpp"
-#include "common/NetworkRequest.hpp"
-#include "common/UniqueAccess.hpp"
-#include "messages/Emote.hpp"
-
-#include <QJsonArray>
-#include <QJsonObject>
-#include <QJsonValue>
-#include <QThread>
-
-namespace chatterino {
-
-}  // namespace chatterino
diff --git a/src/providers/bttv/LoadBttvChannelEmote.hpp b/src/providers/bttv/LoadBttvChannelEmote.hpp
deleted file mode 100644
index d0fa5cc32b4..00000000000
--- a/src/providers/bttv/LoadBttvChannelEmote.hpp
+++ /dev/null
@@ -1,9 +0,0 @@
-#pragma once
-
-#include <functional>
-
-class QString;
-
-namespace chatterino {
-
-}  // namespace chatterino
diff --git a/src/providers/chatterino/ChatterinoBadges.cpp b/src/providers/chatterino/ChatterinoBadges.cpp
index 91f2d30023f..f0ccec3af0c 100644
--- a/src/providers/chatterino/ChatterinoBadges.cpp
+++ b/src/providers/chatterino/ChatterinoBadges.cpp
@@ -1,6 +1,7 @@
 #include "ChatterinoBadges.hpp"
 
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/Outcome.hpp"
 #include "messages/Emote.hpp"
 
diff --git a/src/providers/chatterino/ChatterinoBadges.hpp b/src/providers/chatterino/ChatterinoBadges.hpp
index aad0487673d..179c55a4501 100644
--- a/src/providers/chatterino/ChatterinoBadges.hpp
+++ b/src/providers/chatterino/ChatterinoBadges.hpp
@@ -1,10 +1,10 @@
 #pragma once
 
 #include "common/Aliases.hpp"
+#include "common/Singleton.hpp"
 #include "util/QStringHash.hpp"
 
 #include <boost/optional.hpp>
-#include <common/Singleton.hpp>
 
 #include <memory>
 #include <shared_mutex>
diff --git a/src/providers/colors/ColorProvider.cpp b/src/providers/colors/ColorProvider.cpp
index 342ce45ab59..94fb444514f 100644
--- a/src/providers/colors/ColorProvider.cpp
+++ b/src/providers/colors/ColorProvider.cpp
@@ -1,5 +1,7 @@
 #include "providers/colors/ColorProvider.hpp"
 
+#include "controllers/highlights/HighlightPhrase.hpp"
+#include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
 
 namespace chatterino {
diff --git a/src/providers/emoji/Emojis.cpp b/src/providers/emoji/Emojis.cpp
index 3833930ce8c..1727f0bf302 100644
--- a/src/providers/emoji/Emojis.cpp
+++ b/src/providers/emoji/Emojis.cpp
@@ -1,9 +1,10 @@
 #include "providers/emoji/Emojis.hpp"
 
-#include "Application.hpp"
 #include "common/QLogging.hpp"
 #include "messages/Emote.hpp"
+#include "messages/Image.hpp"
 #include "singletons/Settings.hpp"
+#include "util/RapidjsonHelpers.hpp"
 
 #include <boost/variant.hpp>
 #include <QFile>
@@ -11,6 +12,7 @@
 #include <rapidjson/error/error.h>
 #include <rapidjson/rapidjson.h>
 
+#include <array>
 #include <memory>
 
 namespace chatterino {
diff --git a/src/providers/ffz/FfzBadges.cpp b/src/providers/ffz/FfzBadges.cpp
index 8818ccab9e8..7407c86038c 100644
--- a/src/providers/ffz/FfzBadges.cpp
+++ b/src/providers/ffz/FfzBadges.cpp
@@ -1,6 +1,7 @@
 #include "FfzBadges.hpp"
 
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/Outcome.hpp"
 #include "messages/Emote.hpp"
 
diff --git a/src/providers/ffz/FfzBadges.hpp b/src/providers/ffz/FfzBadges.hpp
index 1c6a6b83e1a..c0cc80c681d 100644
--- a/src/providers/ffz/FfzBadges.hpp
+++ b/src/providers/ffz/FfzBadges.hpp
@@ -1,14 +1,12 @@
 #pragma once
 
 #include "common/Aliases.hpp"
-#include "common/UniqueAccess.hpp"
+#include "common/Singleton.hpp"
 #include "util/QStringHash.hpp"
 
 #include <boost/optional.hpp>
-#include <common/Singleton.hpp>
 #include <QColor>
 
-#include <map>
 #include <memory>
 #include <set>
 #include <shared_mutex>
diff --git a/src/providers/ffz/FfzEmotes.cpp b/src/providers/ffz/FfzEmotes.cpp
index a7061015c60..0cf533e5b6c 100644
--- a/src/providers/ffz/FfzEmotes.cpp
+++ b/src/providers/ffz/FfzEmotes.cpp
@@ -1,6 +1,7 @@
 #include "providers/ffz/FfzEmotes.hpp"
 
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/Outcome.hpp"
 #include "common/QLogging.hpp"
 #include "messages/Emote.hpp"
@@ -9,8 +10,6 @@
 #include "providers/twitch/TwitchChannel.hpp"
 #include "singletons/Settings.hpp"
 
-#include <QJsonArray>
-
 namespace chatterino {
 namespace {
 
diff --git a/src/providers/ffz/FfzEmotes.hpp b/src/providers/ffz/FfzEmotes.hpp
index 63da07964f6..be0726f045d 100644
--- a/src/providers/ffz/FfzEmotes.hpp
+++ b/src/providers/ffz/FfzEmotes.hpp
@@ -1,9 +1,9 @@
 #pragma once
 
-#include "boost/optional.hpp"
 #include "common/Aliases.hpp"
 #include "common/Atomic.hpp"
-#include "providers/twitch/TwitchChannel.hpp"
+
+#include <boost/optional.hpp>
 
 #include <memory>
 
@@ -12,12 +12,10 @@ namespace chatterino {
 struct Emote;
 using EmotePtr = std::shared_ptr<const Emote>;
 class EmoteMap;
+class Channel;
 
 class FfzEmotes final
 {
-    static constexpr const char *globalEmoteApiUrl =
-        "https://api.frankerfacez.com/v1/set/global";
-
 public:
     FfzEmotes();
 
diff --git a/src/providers/irc/AbstractIrcServer.cpp b/src/providers/irc/AbstractIrcServer.cpp
index 24c663fbd02..77f0631ff7e 100644
--- a/src/providers/irc/AbstractIrcServer.cpp
+++ b/src/providers/irc/AbstractIrcServer.cpp
@@ -1,7 +1,6 @@
 #include "AbstractIrcServer.hpp"
 
 #include "common/Channel.hpp"
-#include "common/Common.hpp"
 #include "common/QLogging.hpp"
 #include "messages/LimitedQueueSnapshot.hpp"
 #include "messages/Message.hpp"
diff --git a/src/providers/irc/AbstractIrcServer.hpp b/src/providers/irc/AbstractIrcServer.hpp
index 9de204895f1..fd6a4612ee6 100644
--- a/src/providers/irc/AbstractIrcServer.hpp
+++ b/src/providers/irc/AbstractIrcServer.hpp
@@ -15,6 +15,7 @@ namespace chatterino {
 
 class Channel;
 using ChannelPtr = std::shared_ptr<Channel>;
+class RatelimitBucket;
 
 class AbstractIrcServer : public QObject
 {
diff --git a/src/providers/irc/Irc2.cpp b/src/providers/irc/Irc2.cpp
index 2d5eebea3d1..fd1b66851c0 100644
--- a/src/providers/irc/Irc2.cpp
+++ b/src/providers/irc/Irc2.cpp
@@ -2,6 +2,8 @@
 
 #include "common/Credentials.hpp"
 #include "common/SignalVectorModel.hpp"
+#include "providers/irc/IrcChannel2.hpp"
+#include "providers/irc/IrcServer.hpp"
 #include "singletons/Paths.hpp"
 #include "util/CombinePath.hpp"
 #include "util/RapidjsonHelpers.hpp"
diff --git a/src/providers/irc/Irc2.hpp b/src/providers/irc/Irc2.hpp
index 0b20783c3d2..793e8b9a931 100644
--- a/src/providers/irc/Irc2.hpp
+++ b/src/providers/irc/Irc2.hpp
@@ -1,8 +1,6 @@
 #pragma once
 
 #include "common/SignalVector.hpp"
-#include "providers/irc/IrcChannel2.hpp"
-#include "providers/irc/IrcServer.hpp"
 
 #include <rapidjson/rapidjson.h>
 
@@ -10,6 +8,10 @@ class QAbstractTableModel;
 
 namespace chatterino {
 
+class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
+class IrcServer;
+
 enum class IrcAuthType { Anonymous, Custom, Pass, Sasl };
 
 struct IrcServerData {
diff --git a/src/providers/irc/IrcChannel2.cpp b/src/providers/irc/IrcChannel2.cpp
index 84f9ce22c39..164cc75f737 100644
--- a/src/providers/irc/IrcChannel2.cpp
+++ b/src/providers/irc/IrcChannel2.cpp
@@ -3,6 +3,7 @@
 #include "debug/AssertInGuiThread.hpp"
 #include "messages/Message.hpp"
 #include "messages/MessageBuilder.hpp"
+#include "messages/MessageElement.hpp"
 #include "providers/irc/IrcCommands.hpp"
 #include "providers/irc/IrcMessageBuilder.hpp"
 #include "providers/irc/IrcServer.hpp"
diff --git a/src/providers/irc/IrcMessageBuilder.cpp b/src/providers/irc/IrcMessageBuilder.cpp
index 7fa9652cbdd..0474bdb76bf 100644
--- a/src/providers/irc/IrcMessageBuilder.cpp
+++ b/src/providers/irc/IrcMessageBuilder.cpp
@@ -1,15 +1,11 @@
 #include "providers/irc/IrcMessageBuilder.hpp"
 
-#include "Application.hpp"
-#include "common/IrcColors.hpp"
-#include "controllers/accounts/AccountController.hpp"
 #include "controllers/ignores/IgnoreController.hpp"
 #include "controllers/ignores/IgnorePhrase.hpp"
 #include "messages/Message.hpp"
 #include "messages/MessageColor.hpp"
-#include "providers/chatterino/ChatterinoBadges.hpp"
+#include "messages/MessageElement.hpp"
 #include "singletons/Emotes.hpp"
-#include "singletons/Resources.hpp"
 #include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
 #include "singletons/WindowManager.hpp"
diff --git a/src/providers/irc/IrcMessageBuilder.hpp b/src/providers/irc/IrcMessageBuilder.hpp
index c165dde707a..820a893809f 100644
--- a/src/providers/irc/IrcMessageBuilder.hpp
+++ b/src/providers/irc/IrcMessageBuilder.hpp
@@ -3,7 +3,6 @@
 #include "common/Aliases.hpp"
 #include "common/Outcome.hpp"
 #include "messages/SharedMessageBuilder.hpp"
-#include "providers/twitch/TwitchBadge.hpp"
 
 #include <IrcMessage>
 #include <QString>
@@ -15,7 +14,6 @@ struct Emote;
 using EmotePtr = std::shared_ptr<const Emote>;
 
 class Channel;
-class TwitchChannel;
 
 class IrcMessageBuilder : public SharedMessageBuilder
 {
diff --git a/src/providers/irc/IrcServer.cpp b/src/providers/irc/IrcServer.cpp
index 363bf045e03..b79f635bcbe 100644
--- a/src/providers/irc/IrcServer.cpp
+++ b/src/providers/irc/IrcServer.cpp
@@ -1,5 +1,6 @@
 #include "IrcServer.hpp"
 
+#include "Application.hpp"
 #include "common/QLogging.hpp"
 #include "messages/Message.hpp"
 #include "messages/MessageColor.hpp"
diff --git a/src/providers/irc/IrcServer.hpp b/src/providers/irc/IrcServer.hpp
index 93a4349e6a0..a360493905d 100644
--- a/src/providers/irc/IrcServer.hpp
+++ b/src/providers/irc/IrcServer.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "providers/irc/AbstractIrcServer.hpp"
-#include "providers/irc/IrcAccount.hpp"
 
 namespace chatterino {
 
diff --git a/src/providers/seventv/SeventvBadges.cpp b/src/providers/seventv/SeventvBadges.cpp
index 2fb7f4ef5c5..9bdc51bf6f4 100644
--- a/src/providers/seventv/SeventvBadges.cpp
+++ b/src/providers/seventv/SeventvBadges.cpp
@@ -1,6 +1,7 @@
 #include "providers/seventv/SeventvBadges.hpp"
 
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/Outcome.hpp"
 #include "messages/Emote.hpp"
 
diff --git a/src/providers/seventv/SeventvBadges.hpp b/src/providers/seventv/SeventvBadges.hpp
index 2d6d021a2b2..182d37b1055 100644
--- a/src/providers/seventv/SeventvBadges.hpp
+++ b/src/providers/seventv/SeventvBadges.hpp
@@ -1,10 +1,10 @@
 #pragma once
 
 #include "common/Aliases.hpp"
+#include "common/Singleton.hpp"
 #include "util/QStringHash.hpp"
 
 #include <boost/optional.hpp>
-#include <common/Singleton.hpp>
 
 #include <memory>
 #include <shared_mutex>
diff --git a/src/providers/seventv/SeventvEmotes.cpp b/src/providers/seventv/SeventvEmotes.cpp
index 740b0c890f3..8f8ee18d682 100644
--- a/src/providers/seventv/SeventvEmotes.cpp
+++ b/src/providers/seventv/SeventvEmotes.cpp
@@ -1,12 +1,13 @@
 #include "providers/seventv/SeventvEmotes.hpp"
 
-#include "common/Common.hpp"
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/QLogging.hpp"
 #include "messages/Emote.hpp"
 #include "messages/Image.hpp"
 #include "messages/ImageSet.hpp"
 #include "messages/MessageBuilder.hpp"
+#include "providers/seventv/eventapi/SeventvEventAPIDispatch.hpp"
 #include "providers/twitch/TwitchChannel.hpp"
 #include "singletons/Settings.hpp"
 
@@ -14,6 +15,7 @@
 #include <QJsonDocument>
 #include <QThread>
 
+#include <array>
 #include <utility>
 
 /**
diff --git a/src/providers/seventv/SeventvEmotes.hpp b/src/providers/seventv/SeventvEmotes.hpp
index ebcb664f70d..023e99555a1 100644
--- a/src/providers/seventv/SeventvEmotes.hpp
+++ b/src/providers/seventv/SeventvEmotes.hpp
@@ -3,13 +3,17 @@
 #include "boost/optional.hpp"
 #include "common/Aliases.hpp"
 #include "common/Atomic.hpp"
-#include "providers/seventv/eventapi/SeventvEventAPIDispatch.hpp"
-#include "providers/twitch/TwitchChannel.hpp"
+#include "common/FlagsEnum.hpp"
 
 #include <memory>
 
 namespace chatterino {
 
+class Channel;
+struct SeventvEventAPIEmoteAddDispatch;
+struct SeventvEventAPIEmoteUpdateDispatch;
+struct SeventvEventAPIEmoteRemoveDispatch;
+
 // https://github.com/SevenTV/API/blob/a84e884b5590dbb5d91a5c6b3548afabb228f385/data/model/emote-set.model.go#L29-L36
 enum class SeventvActiveEmoteFlag : int64_t {
     None = 0LL,
diff --git a/src/providers/seventv/SeventvEventAPI.cpp b/src/providers/seventv/SeventvEventAPI.cpp
index 88a843ba3fb..c4be244dc55 100644
--- a/src/providers/seventv/SeventvEventAPI.cpp
+++ b/src/providers/seventv/SeventvEventAPI.cpp
@@ -1,6 +1,7 @@
 #include "providers/seventv/SeventvEventAPI.hpp"
 
 #include "providers/seventv/eventapi/SeventvEventAPIClient.hpp"
+#include "providers/seventv/eventapi/SeventvEventAPIDispatch.hpp"
 #include "providers/seventv/eventapi/SeventvEventAPIMessage.hpp"
 
 #include <QJsonArray>
diff --git a/src/providers/seventv/SeventvEventAPI.hpp b/src/providers/seventv/SeventvEventAPI.hpp
index 5f6aad3aae6..946e147cba0 100644
--- a/src/providers/seventv/SeventvEventAPI.hpp
+++ b/src/providers/seventv/SeventvEventAPI.hpp
@@ -2,14 +2,19 @@
 
 #include "providers/liveupdates/BasicPubSubClient.hpp"
 #include "providers/liveupdates/BasicPubSubManager.hpp"
-#include "providers/seventv/eventapi/SeventvEventAPIDispatch.hpp"
-#include "providers/seventv/eventapi/SeventvEventAPISubscription.hpp"
 #include "util/QStringHash.hpp"
 
 #include <pajlada/signals/signal.hpp>
 
 namespace chatterino {
 
+struct SeventvEventAPISubscription;
+struct SeventvEventAPIDispatch;
+struct SeventvEventAPIEmoteAddDispatch;
+struct SeventvEventAPIEmoteUpdateDispatch;
+struct SeventvEventAPIEmoteRemoveDispatch;
+struct SeventvEventAPIUserConnectionUpdateDispatch;
+
 class SeventvEventAPI : public BasicPubSubManager<SeventvEventAPISubscription>
 {
     template <typename T>
diff --git a/src/providers/seventv/eventapi/SeventvEventAPIClient.cpp b/src/providers/seventv/eventapi/SeventvEventAPIClient.cpp
index 21a3e134785..e1fcf2d026a 100644
--- a/src/providers/seventv/eventapi/SeventvEventAPIClient.cpp
+++ b/src/providers/seventv/eventapi/SeventvEventAPIClient.cpp
@@ -1,5 +1,6 @@
 #include "providers/seventv/eventapi/SeventvEventAPIClient.hpp"
 
+#include "providers/seventv/eventapi/SeventvEventAPISubscription.hpp"
 #include "providers/twitch/PubSubHelpers.hpp"
 
 #include <utility>
diff --git a/src/providers/seventv/eventapi/SeventvEventAPIClient.hpp b/src/providers/seventv/eventapi/SeventvEventAPIClient.hpp
index ffd4c766f25..f33256d427d 100644
--- a/src/providers/seventv/eventapi/SeventvEventAPIClient.hpp
+++ b/src/providers/seventv/eventapi/SeventvEventAPIClient.hpp
@@ -1,6 +1,8 @@
 #pragma once
 
 #include "providers/liveupdates/BasicPubSubClient.hpp"
+// this needs to be included for the specialization
+// of std::hash for SeventvEventAPISubscription
 #include "providers/seventv/eventapi/SeventvEventAPISubscription.hpp"
 
 namespace chatterino {
diff --git a/src/providers/seventv/eventapi/SeventvEventAPIMessage.hpp b/src/providers/seventv/eventapi/SeventvEventAPIMessage.hpp
index b8b04f5405d..f18d07f31f2 100644
--- a/src/providers/seventv/eventapi/SeventvEventAPIMessage.hpp
+++ b/src/providers/seventv/eventapi/SeventvEventAPIMessage.hpp
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "providers/seventv/SeventvEventAPI.hpp"
+#include "providers/seventv/eventapi/SeventvEventAPISubscription.hpp"
 
 #include <boost/optional.hpp>
 #include <magic_enum.hpp>
diff --git a/src/providers/twitch/ChannelPointReward.cpp b/src/providers/twitch/ChannelPointReward.cpp
index 28e169ecc70..04d4293167f 100644
--- a/src/providers/twitch/ChannelPointReward.cpp
+++ b/src/providers/twitch/ChannelPointReward.cpp
@@ -1,6 +1,7 @@
 #include "ChannelPointReward.hpp"
 
 #include "common/QLogging.hpp"
+#include "messages/Image.hpp"
 
 namespace chatterino {
 
diff --git a/src/providers/twitch/ChannelPointReward.hpp b/src/providers/twitch/ChannelPointReward.hpp
index fad2ed375e7..f9f9b6316e6 100644
--- a/src/providers/twitch/ChannelPointReward.hpp
+++ b/src/providers/twitch/ChannelPointReward.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "common/Aliases.hpp"
-#include "messages/Image.hpp"
 #include "messages/ImageSet.hpp"
 
 #include <QJsonObject>
diff --git a/src/providers/twitch/IrcMessageHandler.cpp b/src/providers/twitch/IrcMessageHandler.cpp
index d412a249b42..15d6a48984c 100644
--- a/src/providers/twitch/IrcMessageHandler.cpp
+++ b/src/providers/twitch/IrcMessageHandler.cpp
@@ -4,12 +4,19 @@
 #include "common/QLogging.hpp"
 #include "controllers/accounts/AccountController.hpp"
 #include "messages/LimitedQueue.hpp"
+#include "messages/Link.hpp"
 #include "messages/Message.hpp"
+#include "messages/MessageBuilder.hpp"
+#include "messages/MessageColor.hpp"
+#include "messages/MessageElement.hpp"
+#include "messages/MessageThread.hpp"
+#include "providers/twitch/ChannelPointReward.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
 #include "providers/twitch/TwitchAccountManager.hpp"
 #include "providers/twitch/TwitchChannel.hpp"
 #include "providers/twitch/TwitchHelpers.hpp"
 #include "providers/twitch/TwitchIrcServer.hpp"
+#include "providers/twitch/TwitchMessageBuilder.hpp"
 #include "singletons/Resources.hpp"
 #include "singletons/Settings.hpp"
 #include "singletons/WindowManager.hpp"
diff --git a/src/providers/twitch/IrcMessageHandler.hpp b/src/providers/twitch/IrcMessageHandler.hpp
index 77b5d370083..114831009b9 100644
--- a/src/providers/twitch/IrcMessageHandler.hpp
+++ b/src/providers/twitch/IrcMessageHandler.hpp
@@ -1,9 +1,6 @@
 #pragma once
 
-#include "common/Channel.hpp"
-#include "messages/Message.hpp"
-#include "providers/twitch/TwitchChannel.hpp"
-#include "providers/twitch/TwitchMessageBuilder.hpp"
+#include "messages/LimitedQueueSnapshot.hpp"
 
 #include <IrcMessage>
 
@@ -13,6 +10,11 @@ namespace chatterino {
 
 class TwitchIrcServer;
 class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
+struct Message;
+using MessagePtr = std::shared_ptr<const Message>;
+class TwitchChannel;
+class TwitchMessageBuilder;
 
 class IrcMessageHandler
 {
diff --git a/src/providers/twitch/PubSubClient.hpp b/src/providers/twitch/PubSubClient.hpp
index 3899e1337a1..ee0e40c1a15 100644
--- a/src/providers/twitch/PubSubClient.hpp
+++ b/src/providers/twitch/PubSubClient.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "providers/twitch/PubSubClientOptions.hpp"
-#include "providers/twitch/PubSubMessages.hpp"
 #include "providers/twitch/PubSubWebsocket.hpp"
 
 #include <pajlada/signals/signal.hpp>
@@ -12,6 +11,9 @@
 
 namespace chatterino {
 
+struct PubSubMessage;
+struct PubSubListenMessage;
+
 struct TopicData {
     QString topic;
     bool authed{false};
diff --git a/src/providers/twitch/PubSubHelpers.hpp b/src/providers/twitch/PubSubHelpers.hpp
index 8ad545403dd..faf01f4c768 100644
--- a/src/providers/twitch/PubSubHelpers.hpp
+++ b/src/providers/twitch/PubSubHelpers.hpp
@@ -1,11 +1,9 @@
 #pragma once
 
 #include "common/QLogging.hpp"
-#include "util/RapidjsonHelpers.hpp"
 
 #include <boost/asio.hpp>
 #include <boost/asio/steady_timer.hpp>
-#include <QJsonObject>
 
 #include <memory>
 
diff --git a/src/providers/twitch/PubSubManager.cpp b/src/providers/twitch/PubSubManager.cpp
index 52a25938e4b..6bfc67d108f 100644
--- a/src/providers/twitch/PubSubManager.cpp
+++ b/src/providers/twitch/PubSubManager.cpp
@@ -2,6 +2,7 @@
 
 #include "common/QLogging.hpp"
 #include "providers/twitch/PubSubActions.hpp"
+#include "providers/twitch/PubSubClient.hpp"
 #include "providers/twitch/PubSubHelpers.hpp"
 #include "providers/twitch/PubSubMessages.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
@@ -9,6 +10,8 @@
 #include "util/Helpers.hpp"
 #include "util/RapidjsonHelpers.hpp"
 
+#include <QJsonArray>
+
 #include <algorithm>
 #include <exception>
 #include <iostream>
diff --git a/src/providers/twitch/PubSubManager.hpp b/src/providers/twitch/PubSubManager.hpp
index 4c608d206ea..ea8138d2d9c 100644
--- a/src/providers/twitch/PubSubManager.hpp
+++ b/src/providers/twitch/PubSubManager.hpp
@@ -1,14 +1,11 @@
 #pragma once
 
-#include "providers/twitch/ChatterinoWebSocketppLogger.hpp"
-#include "providers/twitch/PubSubActions.hpp"
-#include "providers/twitch/PubSubClient.hpp"
 #include "providers/twitch/PubSubClientOptions.hpp"
-#include "providers/twitch/PubSubMessages.hpp"
 #include "providers/twitch/PubSubWebsocket.hpp"
 #include "util/ExponentialBackoff.hpp"
 #include "util/QStringHash.hpp"
 
+#include <boost/optional.hpp>
 #include <pajlada/signals/signal.hpp>
 #include <QJsonObject>
 #include <QString>
@@ -25,6 +22,23 @@
 namespace chatterino {
 
 class TwitchAccount;
+class PubSubClient;
+
+struct ClearChatAction;
+struct DeleteAction;
+struct ModeChangedAction;
+struct ModerationStateAction;
+struct BanAction;
+struct UnbanAction;
+struct PubSubAutoModQueueMessage;
+struct AutomodAction;
+struct AutomodUserAction;
+struct AutomodInfoAction;
+struct PubSubWhisperMessage;
+
+struct PubSubListenMessage;
+struct PubSubMessage;
+struct PubSubMessageMessage;
 
 class PubSub
 {
diff --git a/src/providers/twitch/TwitchAccount.hpp b/src/providers/twitch/TwitchAccount.hpp
index 5213f004750..bfb8b98ca66 100644
--- a/src/providers/twitch/TwitchAccount.hpp
+++ b/src/providers/twitch/TwitchAccount.hpp
@@ -2,11 +2,9 @@
 
 #include "common/Aliases.hpp"
 #include "common/Atomic.hpp"
-#include "common/Channel.hpp"
 #include "common/UniqueAccess.hpp"
 #include "controllers/accounts/Account.hpp"
 #include "messages/Emote.hpp"
-#include "providers/twitch/TwitchUser.hpp"
 #include "util/QStringHash.hpp"
 
 #include <QColor>
@@ -20,6 +18,10 @@
 
 namespace chatterino {
 
+struct TwitchUser;
+class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
+
 class TwitchAccount : public Account
 {
 public:
diff --git a/src/providers/twitch/TwitchAccountManager.cpp b/src/providers/twitch/TwitchAccountManager.cpp
index 64125f4942f..6b02d3bb245 100644
--- a/src/providers/twitch/TwitchAccountManager.cpp
+++ b/src/providers/twitch/TwitchAccountManager.cpp
@@ -5,6 +5,8 @@
 #include "providers/twitch/api/Helix.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
 #include "providers/twitch/TwitchCommon.hpp"
+#include "providers/twitch/TwitchUser.hpp"
+#include "util/SharedPtrElementLess.hpp"
 
 namespace chatterino {
 
diff --git a/src/providers/twitch/TwitchAccountManager.hpp b/src/providers/twitch/TwitchAccountManager.hpp
index 7c8acd32ed8..4eb90f95a53 100644
--- a/src/providers/twitch/TwitchAccountManager.hpp
+++ b/src/providers/twitch/TwitchAccountManager.hpp
@@ -2,7 +2,7 @@
 
 #include "common/ChatterinoSetting.hpp"
 #include "common/SignalVector.hpp"
-#include "util/SharedPtrElementLess.hpp"
+#include "util/RapidJsonSerializeQString.hpp"
 
 #include <boost/signals2.hpp>
 
diff --git a/src/providers/twitch/TwitchBadges.cpp b/src/providers/twitch/TwitchBadges.cpp
index 788deae9502..2eb0b1910a9 100644
--- a/src/providers/twitch/TwitchBadges.cpp
+++ b/src/providers/twitch/TwitchBadges.cpp
@@ -1,9 +1,12 @@
 #include "TwitchBadges.hpp"
 
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/Outcome.hpp"
 #include "common/QLogging.hpp"
 #include "messages/Emote.hpp"
+#include "messages/Image.hpp"
+#include "util/DisplayBadge.hpp"
 
 #include <QBuffer>
 #include <QIcon>
diff --git a/src/providers/twitch/TwitchBadges.hpp b/src/providers/twitch/TwitchBadges.hpp
index 6283765cb80..5d371d5a966 100644
--- a/src/providers/twitch/TwitchBadges.hpp
+++ b/src/providers/twitch/TwitchBadges.hpp
@@ -1,12 +1,11 @@
 #pragma once
 
 #include "common/UniqueAccess.hpp"
-#include "messages/Image.hpp"
-#include "util/DisplayBadge.hpp"
 #include "util/QStringHash.hpp"
 
 #include <boost/optional.hpp>
 #include <pajlada/signals/signal.hpp>
+#include <QIcon>
 #include <QMap>
 #include <QString>
 
@@ -22,6 +21,8 @@ using EmotePtr = std::shared_ptr<const Emote>;
 
 class Settings;
 class Paths;
+class Image;
+class DisplayBadge;
 
 class TwitchBadges
 {
diff --git a/src/providers/twitch/TwitchChannel.cpp b/src/providers/twitch/TwitchChannel.cpp
index 0c995bd9f35..2676aacd59e 100644
--- a/src/providers/twitch/TwitchChannel.cpp
+++ b/src/providers/twitch/TwitchChannel.cpp
@@ -1,19 +1,26 @@
 #include "providers/twitch/TwitchChannel.hpp"
 
+#include "Application.hpp"
 #include "common/Common.hpp"
 #include "common/Env.hpp"
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/QLogging.hpp"
 #include "controllers/accounts/AccountController.hpp"
 #include "controllers/notifications/NotificationController.hpp"
 #include "messages/Emote.hpp"
+#include "messages/Image.hpp"
+#include "messages/Link.hpp"
 #include "messages/Message.hpp"
+#include "messages/MessageElement.hpp"
+#include "messages/MessageThread.hpp"
 #include "providers/bttv/BttvEmotes.hpp"
-#include "providers/bttv/LoadBttvChannelEmote.hpp"
 #include "providers/RecentMessagesApi.hpp"
+#include "providers/seventv/eventapi/SeventvEventAPIDispatch.hpp"
 #include "providers/seventv/SeventvEmotes.hpp"
 #include "providers/seventv/SeventvEventAPI.hpp"
 #include "providers/twitch/api/Helix.hpp"
+#include "providers/twitch/ChannelPointReward.hpp"
 #include "providers/twitch/IrcMessageHandler.hpp"
 #include "providers/twitch/PubSubManager.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
diff --git a/src/providers/twitch/TwitchChannel.hpp b/src/providers/twitch/TwitchChannel.hpp
index 79226f077e1..3596f570f7b 100644
--- a/src/providers/twitch/TwitchChannel.hpp
+++ b/src/providers/twitch/TwitchChannel.hpp
@@ -1,17 +1,11 @@
 #pragma once
 
-#include "Application.hpp"
 #include "common/Aliases.hpp"
 #include "common/Atomic.hpp"
 #include "common/Channel.hpp"
 #include "common/ChannelChatters.hpp"
-#include "common/ChatterSet.hpp"
 #include "common/Outcome.hpp"
 #include "common/UniqueAccess.hpp"
-#include "messages/MessageThread.hpp"
-#include "providers/seventv/eventapi/SeventvEventAPIDispatch.hpp"
-#include "providers/twitch/api/Helix.hpp"
-#include "providers/twitch/ChannelPointReward.hpp"
 #include "providers/twitch/TwitchEmotes.hpp"
 #include "util/QStringHash.hpp"
 
@@ -54,6 +48,14 @@ class TwitchBadges;
 class FfzEmotes;
 class BttvEmotes;
 class SeventvEmotes;
+struct SeventvEventAPIEmoteAddDispatch;
+struct SeventvEventAPIEmoteUpdateDispatch;
+struct SeventvEventAPIEmoteRemoveDispatch;
+struct SeventvEventAPIUserConnectionUpdateDispatch;
+struct ChannelPointReward;
+class MessageThread;
+struct CheerEmoteSet;
+struct HelixStream;
 
 class TwitchIrcServer;
 
diff --git a/src/providers/twitch/TwitchIrcServer.cpp b/src/providers/twitch/TwitchIrcServer.cpp
index 04053400996..02231091f94 100644
--- a/src/providers/twitch/TwitchIrcServer.cpp
+++ b/src/providers/twitch/TwitchIrcServer.cpp
@@ -1,18 +1,19 @@
 #include "TwitchIrcServer.hpp"
 
 #include "Application.hpp"
-#include "common/Common.hpp"
 #include "common/Env.hpp"
 #include "common/QLogging.hpp"
 #include "controllers/accounts/AccountController.hpp"
 #include "messages/Message.hpp"
 #include "messages/MessageBuilder.hpp"
+#include "providers/seventv/eventapi/SeventvEventAPISubscription.hpp"
 #include "providers/seventv/SeventvEventAPI.hpp"
+#include "providers/twitch/api/Helix.hpp"
+#include "providers/twitch/ChannelPointReward.hpp"
 #include "providers/twitch/IrcMessageHandler.hpp"
 #include "providers/twitch/PubSubManager.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
 #include "providers/twitch/TwitchChannel.hpp"
-#include "providers/twitch/TwitchHelpers.hpp"
 #include "singletons/Settings.hpp"
 #include "util/Helpers.hpp"
 #include "util/PostToThread.hpp"
diff --git a/src/providers/twitch/TwitchIrcServer.hpp b/src/providers/twitch/TwitchIrcServer.hpp
index 572b2bb1384..e93fcc4fc9f 100644
--- a/src/providers/twitch/TwitchIrcServer.hpp
+++ b/src/providers/twitch/TwitchIrcServer.hpp
@@ -3,12 +3,13 @@
 #include "common/Atomic.hpp"
 #include "common/Channel.hpp"
 #include "common/Singleton.hpp"
-#include "pajlada/signals/signalholder.hpp"
 #include "providers/bttv/BttvEmotes.hpp"
 #include "providers/ffz/FfzEmotes.hpp"
 #include "providers/irc/AbstractIrcServer.hpp"
 #include "providers/seventv/SeventvEmotes.hpp"
 
+#include <pajlada/signals/signalholder.hpp>
+
 #include <chrono>
 #include <memory>
 #include <queue>
diff --git a/src/providers/twitch/TwitchMessageBuilder.cpp b/src/providers/twitch/TwitchMessageBuilder.cpp
index a8b1b0e5b7e..f7694879773 100644
--- a/src/providers/twitch/TwitchMessageBuilder.cpp
+++ b/src/providers/twitch/TwitchMessageBuilder.cpp
@@ -7,10 +7,16 @@
 #include "controllers/ignores/IgnorePhrase.hpp"
 #include "controllers/userdata/UserDataController.hpp"
 #include "messages/Emote.hpp"
+#include "messages/Image.hpp"
 #include "messages/Message.hpp"
+#include "messages/MessageThread.hpp"
 #include "providers/chatterino/ChatterinoBadges.hpp"
+#include "providers/colors/ColorProvider.hpp"
 #include "providers/ffz/FfzBadges.hpp"
 #include "providers/seventv/SeventvBadges.hpp"
+#include "providers/twitch/api/Helix.hpp"
+#include "providers/twitch/ChannelPointReward.hpp"
+#include "providers/twitch/PubSubActions.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
 #include "providers/twitch/TwitchBadge.hpp"
 #include "providers/twitch/TwitchBadges.hpp"
@@ -27,7 +33,6 @@
 #include "widgets/Window.hpp"
 
 #include <boost/variant.hpp>
-#include <QApplication>
 #include <QColor>
 #include <QDebug>
 #include <QMediaPlayer>
diff --git a/src/providers/twitch/TwitchMessageBuilder.hpp b/src/providers/twitch/TwitchMessageBuilder.hpp
index df1d782babf..30d62d84acc 100644
--- a/src/providers/twitch/TwitchMessageBuilder.hpp
+++ b/src/providers/twitch/TwitchMessageBuilder.hpp
@@ -2,13 +2,9 @@
 
 #include "common/Aliases.hpp"
 #include "common/Outcome.hpp"
-#include "messages/MessageThread.hpp"
 #include "messages/SharedMessageBuilder.hpp"
-#include "providers/twitch/api/Helix.hpp"
-#include "providers/twitch/ChannelPointReward.hpp"
-#include "providers/twitch/PubSubActions.hpp"
-#include "providers/twitch/TwitchBadge.hpp"
 
+#include <boost/optional.hpp>
 #include <IrcMessage>
 #include <QString>
 #include <QVariant>
@@ -20,6 +16,11 @@ using EmotePtr = std::shared_ptr<const Emote>;
 
 class Channel;
 class TwitchChannel;
+class MessageThread;
+struct HelixVip;
+using HelixModerator = HelixVip;
+struct ChannelPointReward;
+struct DeleteAction;
 
 struct TwitchEmoteOccurrence {
     int start;
diff --git a/src/providers/twitch/TwitchUser.cpp b/src/providers/twitch/TwitchUser.cpp
index e24e9c78181..f1b6255098d 100644
--- a/src/providers/twitch/TwitchUser.cpp
+++ b/src/providers/twitch/TwitchUser.cpp
@@ -1,7 +1,15 @@
 #include "providers/twitch/TwitchUser.hpp"
 
+#include "providers/twitch/api/Helix.hpp"
 #include "util/RapidjsonHelpers.hpp"
 
 namespace chatterino {
 
+void TwitchUser::fromHelixBlock(const HelixBlock &ignore)
+{
+    this->id = ignore.userId;
+    this->name = ignore.userName;
+    this->displayName = ignore.displayName;
+}
+
 }  // namespace chatterino
diff --git a/src/providers/twitch/TwitchUser.hpp b/src/providers/twitch/TwitchUser.hpp
index 478383b98d1..7593abd3c8e 100644
--- a/src/providers/twitch/TwitchUser.hpp
+++ b/src/providers/twitch/TwitchUser.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include "providers/twitch/api/Helix.hpp"
 #include "util/RapidjsonHelpers.hpp"
 
 #include <pajlada/serialize.hpp>
@@ -11,6 +10,8 @@
 
 namespace chatterino {
 
+struct HelixBlock;
+
 struct TwitchUser {
     QString id;
     mutable QString name;
@@ -24,12 +25,7 @@ struct TwitchUser {
         this->displayName = other.displayName;
     }
 
-    void fromHelixBlock(const HelixBlock &ignore)
-    {
-        this->id = ignore.userId;
-        this->name = ignore.userName;
-        this->displayName = ignore.displayName;
-    }
+    void fromHelixBlock(const HelixBlock &ignore);
 
     bool operator<(const TwitchUser &rhs) const
     {
diff --git a/src/providers/twitch/api/Helix.cpp b/src/providers/twitch/api/Helix.cpp
index 0b816f8db5d..76942e8f236 100644
--- a/src/providers/twitch/api/Helix.cpp
+++ b/src/providers/twitch/api/Helix.cpp
@@ -1,5 +1,7 @@
 #include "providers/twitch/api/Helix.hpp"
 
+#include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/Outcome.hpp"
 #include "common/QLogging.hpp"
 
diff --git a/src/providers/twitch/api/Helix.hpp b/src/providers/twitch/api/Helix.hpp
index 92674ca7276..a91f67f404e 100644
--- a/src/providers/twitch/api/Helix.hpp
+++ b/src/providers/twitch/api/Helix.hpp
@@ -7,6 +7,7 @@
 
 #include <boost/optional.hpp>
 #include <QJsonArray>
+#include <QJsonObject>
 #include <QString>
 #include <QStringList>
 #include <QUrl>
diff --git a/src/singletons/Badges.hpp b/src/singletons/Badges.hpp
index 8d53aa9e58e..e7288ac5c31 100644
--- a/src/singletons/Badges.hpp
+++ b/src/singletons/Badges.hpp
@@ -1,9 +1,6 @@
 #pragma once
 
 #include "common/Singleton.hpp"
-#include "messages/Emote.hpp"
-
-#include <unordered_map>
 
 namespace chatterino {
 
diff --git a/src/singletons/Emotes.cpp b/src/singletons/Emotes.cpp
index c5d93e3bf21..5b30faad3fc 100644
--- a/src/singletons/Emotes.cpp
+++ b/src/singletons/Emotes.cpp
@@ -1,8 +1,5 @@
 #include "singletons/Emotes.hpp"
 
-#include "Application.hpp"
-#include "controllers/accounts/AccountController.hpp"
-
 namespace chatterino {
 
 Emotes::Emotes()
diff --git a/src/singletons/Emotes.hpp b/src/singletons/Emotes.hpp
index deff15d3acf..1a65a17d0c7 100644
--- a/src/singletons/Emotes.hpp
+++ b/src/singletons/Emotes.hpp
@@ -1,10 +1,7 @@
 #pragma once
 
 #include "common/Singleton.hpp"
-#include "providers/bttv/BttvEmotes.hpp"
 #include "providers/emoji/Emojis.hpp"
-#include "providers/ffz/FfzEmotes.hpp"
-#include "providers/seventv/SeventvEmotes.hpp"
 #include "providers/twitch/TwitchEmotes.hpp"
 #include "singletons/helper/GifTimer.hpp"
 
diff --git a/src/singletons/Fonts.cpp b/src/singletons/Fonts.cpp
index 521baefa7b3..08c00ca390f 100644
--- a/src/singletons/Fonts.cpp
+++ b/src/singletons/Fonts.cpp
@@ -1,16 +1,13 @@
 #include "singletons/Fonts.hpp"
 
-#include "BaseSettings.hpp"
+#include "Application.hpp"
 #include "debug/AssertInGuiThread.hpp"
+#include "singletons/Settings.hpp"
+#include "singletons/WindowManager.hpp"
 
 #include <QDebug>
 #include <QtGlobal>
 
-#ifdef CHATTERINO
-#    include "Application.hpp"
-#    include "singletons/WindowManager.hpp"
-#endif
-
 #ifdef Q_OS_WIN32
 #    define DEFAULT_FONT_FAMILY "Segoe UI"
 #    define DEFAULT_FONT_SIZE 10
diff --git a/src/singletons/Logging.hpp b/src/singletons/Logging.hpp
index a0b1be3ea18..46d3782b011 100644
--- a/src/singletons/Logging.hpp
+++ b/src/singletons/Logging.hpp
@@ -1,14 +1,18 @@
 #pragma once
 
 #include "common/Singleton.hpp"
-#include "messages/Message.hpp"
-#include "singletons/helper/LoggingChannel.hpp"
 
+#include <QString>
+
+#include <map>
 #include <memory>
 
 namespace chatterino {
 
 class Paths;
+struct Message;
+using MessagePtr = std::shared_ptr<const Message>;
+class LoggingChannel;
 
 class Logging : public Singleton
 {
diff --git a/src/singletons/NativeMessaging.hpp b/src/singletons/NativeMessaging.hpp
index 9733dfb14ec..9c46a08a1c8 100644
--- a/src/singletons/NativeMessaging.hpp
+++ b/src/singletons/NativeMessaging.hpp
@@ -1,7 +1,8 @@
 #pragma once
 
+#include "common/Atomic.hpp"
+
 #include <boost/optional.hpp>
-#include <common/Atomic.hpp>
 #include <QString>
 #include <QThread>
 
diff --git a/src/singletons/Settings.cpp b/src/singletons/Settings.cpp
index f816209145c..495fe1d3578 100644
--- a/src/singletons/Settings.cpp
+++ b/src/singletons/Settings.cpp
@@ -1,12 +1,12 @@
 #include "singletons/Settings.hpp"
 
-#include "Application.hpp"
+#include "controllers/filters/FilterRecord.hpp"
+#include "controllers/highlights/HighlightBadge.hpp"
 #include "controllers/highlights/HighlightBlacklistUser.hpp"
 #include "controllers/highlights/HighlightPhrase.hpp"
 #include "controllers/ignores/IgnorePhrase.hpp"
-#include "singletons/Paths.hpp"
-#include "singletons/Resources.hpp"
-#include "singletons/WindowManager.hpp"
+#include "controllers/moderationactions/ModerationAction.hpp"
+#include "controllers/nicknames/Nickname.hpp"
 #include "util/PersistSignalVector.hpp"
 #include "util/WindowsHelper.hpp"
 
diff --git a/src/singletons/Settings.hpp b/src/singletons/Settings.hpp
index 2f2d0e7f228..1a671085d73 100644
--- a/src/singletons/Settings.hpp
+++ b/src/singletons/Settings.hpp
@@ -3,12 +3,8 @@
 #include "BaseSettings.hpp"
 #include "common/Channel.hpp"
 #include "common/SignalVector.hpp"
-#include "controllers/filters/FilterRecord.hpp"
-#include "controllers/highlights/HighlightBadge.hpp"
-#include "controllers/highlights/HighlightPhrase.hpp"
-#include "controllers/moderationactions/ModerationAction.hpp"
-#include "controllers/nicknames/Nickname.hpp"
 #include "singletons/Toasts.hpp"
+#include "util/RapidJsonSerializeQString.hpp"
 #include "util/StreamerMode.hpp"
 #include "widgets/Notebook.hpp"
 #include "widgets/splits/SplitInput.hpp"
@@ -24,7 +20,10 @@ class HighlightPhrase;
 class HighlightBlacklistUser;
 class IgnorePhrase;
 class FilterRecord;
+using FilterRecordPtr = std::shared_ptr<FilterRecord>;
 class Nickname;
+class HighlightBadge;
+class ModerationAction;
 
 /// Settings which are available for reading on all threads.
 class ConcurrentSettings
@@ -521,7 +520,3 @@ class Settings : public ABSettings, public ConcurrentSettings
 };
 
 }  // namespace chatterino
-
-#ifdef CHATTERINO
-#    include "singletons/Settings.hpp"
-#endif
diff --git a/src/singletons/Theme.hpp b/src/singletons/Theme.hpp
index 92dd5e8305c..f99ba169def 100644
--- a/src/singletons/Theme.hpp
+++ b/src/singletons/Theme.hpp
@@ -1,12 +1,12 @@
 #pragma once
 
+#include "common/ChatterinoSetting.hpp"
 #include "common/Singleton.hpp"
 #include "util/RapidJsonSerializeQString.hpp"
 
 #include <pajlada/settings/setting.hpp>
 #include <QBrush>
 #include <QColor>
-#include <singletons/Settings.hpp>
 
 namespace chatterino {
 
diff --git a/src/singletons/Toasts.cpp b/src/singletons/Toasts.cpp
index 99740d16b1c..09fbf8fbcc0 100644
--- a/src/singletons/Toasts.cpp
+++ b/src/singletons/Toasts.cpp
@@ -9,6 +9,7 @@
 #include "providers/twitch/TwitchCommon.hpp"
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "singletons/Paths.hpp"
+#include "singletons/Settings.hpp"
 #include "util/StreamLink.hpp"
 #include "widgets/helper/CommonTexts.hpp"
 
diff --git a/src/singletons/Toasts.hpp b/src/singletons/Toasts.hpp
index b1a8eb44e7c..a47a52b5ca5 100644
--- a/src/singletons/Toasts.hpp
+++ b/src/singletons/Toasts.hpp
@@ -1,9 +1,9 @@
 #pragma once
 
-#include "Application.hpp"
 #include "common/Singleton.hpp"
 
 #include <pajlada/settings/setting.hpp>
+#include <QString>
 
 namespace chatterino {
 
diff --git a/src/singletons/Updates.cpp b/src/singletons/Updates.cpp
index 52c80ec6cfb..2647cfc4358 100644
--- a/src/singletons/Updates.cpp
+++ b/src/singletons/Updates.cpp
@@ -2,6 +2,7 @@
 
 #include "common/Modes.hpp"
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/Outcome.hpp"
 #include "common/QLogging.hpp"
 #include "common/Version.hpp"
diff --git a/src/singletons/WindowManager.hpp b/src/singletons/WindowManager.hpp
index 6cac9241c45..ba7cc5a4c93 100644
--- a/src/singletons/WindowManager.hpp
+++ b/src/singletons/WindowManager.hpp
@@ -1,12 +1,13 @@
 #pragma once
 
-#include "common/Channel.hpp"
 #include "common/FlagsEnum.hpp"
 #include "common/Singleton.hpp"
-#include "common/WindowDescriptors.hpp"
-#include "pajlada/settings/settinglistener.hpp"
 #include "widgets/splits/SplitContainer.hpp"
 
+#include <pajlada/settings/settinglistener.hpp>
+#include <QPoint>
+#include <QTimer>
+
 #include <memory>
 
 namespace chatterino {
@@ -14,8 +15,15 @@ namespace chatterino {
 class Settings;
 class Paths;
 class Window;
-class SplitContainer;
 class ChannelView;
+class IndirectChannel;
+class Split;
+struct SplitDescriptor;
+class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
+struct Message;
+using MessagePtr = std::shared_ptr<const Message>;
+class WindowLayout;
 
 enum class MessageElementFlag : int64_t;
 using MessageElementFlags = FlagsEnum<MessageElementFlag>;
diff --git a/src/singletons/helper/LoggingChannel.cpp b/src/singletons/helper/LoggingChannel.cpp
index 13f40c06eb2..78120496c76 100644
--- a/src/singletons/helper/LoggingChannel.cpp
+++ b/src/singletons/helper/LoggingChannel.cpp
@@ -1,14 +1,12 @@
 #include "LoggingChannel.hpp"
 
-#include "Application.hpp"
 #include "common/QLogging.hpp"
+#include "messages/Message.hpp"
 #include "singletons/Paths.hpp"
 #include "singletons/Settings.hpp"
 
 #include <QDir>
 
-#include <ctime>
-
 namespace chatterino {
 
 QByteArray endline("\n");
diff --git a/src/singletons/helper/LoggingChannel.hpp b/src/singletons/helper/LoggingChannel.hpp
index 519dcdaf198..9970baaefcd 100644
--- a/src/singletons/helper/LoggingChannel.hpp
+++ b/src/singletons/helper/LoggingChannel.hpp
@@ -1,7 +1,5 @@
 #pragma once
 
-#include "messages/Message.hpp"
-
 #include <boost/noncopyable.hpp>
 #include <QDateTime>
 #include <QFile>
@@ -12,6 +10,8 @@
 namespace chatterino {
 
 class Logging;
+struct Message;
+using MessagePtr = std::shared_ptr<const Message>;
 
 class LoggingChannel : boost::noncopyable
 {
diff --git a/src/util/AttachToConsole.cpp b/src/util/AttachToConsole.cpp
index b1c993ad4f3..5e5ca77ff8d 100644
--- a/src/util/AttachToConsole.cpp
+++ b/src/util/AttachToConsole.cpp
@@ -1,7 +1,9 @@
-#include "AttachToConsole.hpp"
+#include "util/AttachToConsole.hpp"
 
 #ifdef USEWINSDK
 #    include <Windows.h>
+
+#    include <iostream>
 #endif
 
 namespace chatterino {
diff --git a/src/util/NuulsUploader.cpp b/src/util/NuulsUploader.cpp
index 6063bd30cb0..79f7b3794e7 100644
--- a/src/util/NuulsUploader.cpp
+++ b/src/util/NuulsUploader.cpp
@@ -2,11 +2,13 @@
 
 #include "common/Env.hpp"
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/QLogging.hpp"
 #include "providers/twitch/TwitchMessageBuilder.hpp"
 #include "singletons/Paths.hpp"
 #include "singletons/Settings.hpp"
 #include "util/CombinePath.hpp"
+#include "widgets/helper/ResizingTextEdit.hpp"
 
 #include <QBuffer>
 #include <QHttpMultiPart>
diff --git a/src/util/NuulsUploader.hpp b/src/util/NuulsUploader.hpp
index 6339d0dae0d..e830b45054f 100644
--- a/src/util/NuulsUploader.hpp
+++ b/src/util/NuulsUploader.hpp
@@ -1,10 +1,16 @@
-#include "common/Channel.hpp"
-#include "widgets/helper/ResizingTextEdit.hpp"
+#pragma once
 
 #include <QMimeData>
 #include <QString>
 
+#include <memory>
+
 namespace chatterino {
+
+class ResizingTextEdit;
+class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
+
 struct RawImageData {
     QByteArray data;
     QString format;
@@ -17,4 +23,5 @@ void upload(RawImageData imageData, ChannelPtr channel,
             ResizingTextEdit &textEdit);
 void upload(const QMimeData *source, ChannelPtr channel,
             ResizingTextEdit &outputTextEdit);
+
 }  // namespace chatterino
diff --git a/src/util/WindowsHelper.cpp b/src/util/WindowsHelper.cpp
index d2b9a4efebd..06fc0dd798c 100644
--- a/src/util/WindowsHelper.cpp
+++ b/src/util/WindowsHelper.cpp
@@ -1,5 +1,7 @@
 #include "WindowsHelper.hpp"
 
+#include <QCoreApplication>
+#include <QFileInfo>
 #include <QSettings>
 
 #ifdef USEWINSDK
diff --git a/src/widgets/AccountSwitchPopup.cpp b/src/widgets/AccountSwitchPopup.cpp
index 6b0e32b11ba..a50969289af 100644
--- a/src/widgets/AccountSwitchPopup.cpp
+++ b/src/widgets/AccountSwitchPopup.cpp
@@ -1,12 +1,11 @@
 #include "widgets/AccountSwitchPopup.hpp"
 
+#include "widgets/AccountSwitchWidget.hpp"
 #include "widgets/dialogs/SettingsDialog.hpp"
 
-#include <QHBoxLayout>
 #include <QLayout>
 #include <QPainter>
 #include <QPushButton>
-#include <QVBoxLayout>
 
 namespace chatterino {
 
diff --git a/src/widgets/AccountSwitchPopup.hpp b/src/widgets/AccountSwitchPopup.hpp
index 619bfbe20c4..801b1a463c8 100644
--- a/src/widgets/AccountSwitchPopup.hpp
+++ b/src/widgets/AccountSwitchPopup.hpp
@@ -1,12 +1,13 @@
 #pragma once
 
-#include "widgets/AccountSwitchWidget.hpp"
 #include "widgets/BaseWindow.hpp"
 
 #include <QWidget>
 
 namespace chatterino {
 
+class AccountSwitchWidget;
+
 class AccountSwitchPopup : public BaseWindow
 {
     Q_OBJECT
diff --git a/src/widgets/BaseWindow.cpp b/src/widgets/BaseWindow.cpp
index a4b1b709301..070a2533a2a 100644
--- a/src/widgets/BaseWindow.cpp
+++ b/src/widgets/BaseWindow.cpp
@@ -1,7 +1,9 @@
 #include "widgets/BaseWindow.hpp"
 
-#include "BaseSettings.hpp"
+#include "Application.hpp"
+#include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
+#include "singletons/WindowManager.hpp"
 #include "util/DebugCount.hpp"
 #include "util/PostToThread.hpp"
 #include "util/WindowsHelper.hpp"
@@ -16,11 +18,6 @@
 
 #include <functional>
 
-#ifdef CHATTERINO
-#    include "Application.hpp"
-#    include "singletons/WindowManager.hpp"
-#endif
-
 #ifdef USEWINSDK
 #    include <dwmapi.h>
 #    include <VersionHelpers.h>
diff --git a/src/widgets/BaseWindow.hpp b/src/widgets/BaseWindow.hpp
index 6accc87ca3e..29a4e474377 100644
--- a/src/widgets/BaseWindow.hpp
+++ b/src/widgets/BaseWindow.hpp
@@ -4,6 +4,7 @@
 #include "widgets/BaseWidget.hpp"
 
 #include <pajlada/signals/signalholder.hpp>
+#include <QTimer>
 
 #include <functional>
 
diff --git a/src/widgets/Notebook.hpp b/src/widgets/Notebook.hpp
index 11c96d30b61..7cc49cfa67b 100644
--- a/src/widgets/Notebook.hpp
+++ b/src/widgets/Notebook.hpp
@@ -1,8 +1,8 @@
 #pragma once
 
-#include "pajlada/signals/signal.hpp"
 #include "widgets/BaseWidget.hpp"
 
+#include <pajlada/signals/signal.hpp>
 #include <pajlada/signals/signalholder.hpp>
 #include <QList>
 #include <QMenu>
diff --git a/src/widgets/Scrollbar.cpp b/src/widgets/Scrollbar.cpp
index 7fb44f49e88..cbd6e4e3948 100644
--- a/src/widgets/Scrollbar.cpp
+++ b/src/widgets/Scrollbar.cpp
@@ -1,13 +1,11 @@
 #include "widgets/Scrollbar.hpp"
 
-#include "Application.hpp"
 #include "common/QLogging.hpp"
 #include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
 #include "singletons/WindowManager.hpp"
 #include "widgets/helper/ChannelView.hpp"
 
-#include <QDebug>
 #include <QMouseEvent>
 #include <QPainter>
 #include <QTimer>
diff --git a/src/widgets/TooltipWidget.cpp b/src/widgets/TooltipWidget.cpp
index 4e7ee76972f..ac89f5bfaac 100644
--- a/src/widgets/TooltipWidget.cpp
+++ b/src/widgets/TooltipWidget.cpp
@@ -1,6 +1,7 @@
-#include "TooltipWidget.hpp"
+#include "widgets/TooltipWidget.hpp"
 
 #include "Application.hpp"
+#include "messages/Image.hpp"
 #include "singletons/Fonts.hpp"
 #include "singletons/WindowManager.hpp"
 
diff --git a/src/widgets/TooltipWidget.hpp b/src/widgets/TooltipWidget.hpp
index 84db6d787e6..7e1c0d2dda1 100644
--- a/src/widgets/TooltipWidget.hpp
+++ b/src/widgets/TooltipWidget.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include "messages/Image.hpp"
 #include "widgets/BaseWindow.hpp"
 
 #include <pajlada/signals/signalholder.hpp>
@@ -9,6 +8,9 @@
 
 namespace chatterino {
 
+class Image;
+using ImagePtr = std::shared_ptr<Image>;
+
 class TooltipWidget : public BaseWindow
 {
     Q_OBJECT
diff --git a/src/widgets/dialogs/ColorPickerDialog.cpp b/src/widgets/dialogs/ColorPickerDialog.cpp
index 4eebac79fb1..c15e4b16a18 100644
--- a/src/widgets/dialogs/ColorPickerDialog.cpp
+++ b/src/widgets/dialogs/ColorPickerDialog.cpp
@@ -2,9 +2,13 @@
 
 #include "providers/colors/ColorProvider.hpp"
 #include "singletons/Theme.hpp"
+#include "util/LayoutCreator.hpp"
+#include "widgets/helper/ColorButton.hpp"
+#include "widgets/helper/QColorPicker.hpp"
 
 #include <QDialogButtonBox>
 #include <QLineEdit>
+#include <QSet>
 
 namespace chatterino {
 
diff --git a/src/widgets/dialogs/ColorPickerDialog.hpp b/src/widgets/dialogs/ColorPickerDialog.hpp
index ceccad7b5c6..132e6ac0dcd 100644
--- a/src/widgets/dialogs/ColorPickerDialog.hpp
+++ b/src/widgets/dialogs/ColorPickerDialog.hpp
@@ -1,17 +1,24 @@
 #pragma once
 
-#include "util/LayoutCreator.hpp"
 #include "widgets/BasePopup.hpp"
-#include "widgets/helper/ColorButton.hpp"
-#include "widgets/helper/QColorPicker.hpp"
 
 #include <pajlada/signals/signal.hpp>
 #include <QLabel>
+#include <QLineEdit>
+#include <QRegularExpressionValidator>
 
 #include <array>
 
 namespace chatterino {
 
+class ColorButton;
+class QColorLuminancePicker;
+class QColorPicker;
+class QColSpinBox;
+
+template <class T>
+class LayoutCreator;
+
 /**
  * @brief A custom color picker dialog.
  *
diff --git a/src/widgets/dialogs/EditHotkeyDialog.cpp b/src/widgets/dialogs/EditHotkeyDialog.cpp
index 457d5fd3a16..d1bac90cc7a 100644
--- a/src/widgets/dialogs/EditHotkeyDialog.cpp
+++ b/src/widgets/dialogs/EditHotkeyDialog.cpp
@@ -3,6 +3,7 @@
 #include "Application.hpp"
 #include "common/QLogging.hpp"
 #include "controllers/hotkeys/ActionNames.hpp"
+#include "controllers/hotkeys/Hotkey.hpp"
 #include "controllers/hotkeys/HotkeyController.hpp"
 #include "controllers/hotkeys/HotkeyHelpers.hpp"
 #include "ui_EditHotkeyDialog.h"
diff --git a/src/widgets/dialogs/EditHotkeyDialog.hpp b/src/widgets/dialogs/EditHotkeyDialog.hpp
index 71923824668..e442b4f6d52 100644
--- a/src/widgets/dialogs/EditHotkeyDialog.hpp
+++ b/src/widgets/dialogs/EditHotkeyDialog.hpp
@@ -1,7 +1,5 @@
 #pragma once
 
-#include "controllers/hotkeys/Hotkey.hpp"
-
 #include <QDialog>
 
 #include <memory>
@@ -14,6 +12,8 @@ class EditHotkeyDialog;
 
 namespace chatterino {
 
+class Hotkey;
+
 class EditHotkeyDialog : public QDialog
 {
     Q_OBJECT
diff --git a/src/widgets/dialogs/EmotePopup.cpp b/src/widgets/dialogs/EmotePopup.cpp
index 083064409ad..5d6b5bf3505 100644
--- a/src/widgets/dialogs/EmotePopup.cpp
+++ b/src/widgets/dialogs/EmotePopup.cpp
@@ -9,10 +9,12 @@
 #include "messages/Emote.hpp"
 #include "messages/Message.hpp"
 #include "messages/MessageBuilder.hpp"
+#include "messages/MessageElement.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
 #include "providers/twitch/TwitchChannel.hpp"
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "singletons/Emotes.hpp"
+#include "singletons/Settings.hpp"
 #include "singletons/WindowManager.hpp"
 #include "widgets/helper/ChannelView.hpp"
 #include "widgets/helper/TrimRegExpValidator.hpp"
diff --git a/src/widgets/dialogs/EmotePopup.hpp b/src/widgets/dialogs/EmotePopup.hpp
index 0c4a4f3dd16..71a20a0a863 100644
--- a/src/widgets/dialogs/EmotePopup.hpp
+++ b/src/widgets/dialogs/EmotePopup.hpp
@@ -1,8 +1,6 @@
 #pragma once
 
-#include "providers/twitch/TwitchChannel.hpp"
 #include "widgets/BasePopup.hpp"
-#include "widgets/Notebook.hpp"
 
 #include <pajlada/signals/signal.hpp>
 #include <QLineEdit>
@@ -13,6 +11,8 @@ struct Link;
 class ChannelView;
 class Channel;
 using ChannelPtr = std::shared_ptr<Channel>;
+class Notebook;
+class TwitchChannel;
 
 class EmotePopup : public BasePopup
 {
diff --git a/src/widgets/dialogs/ReplyThreadPopup.cpp b/src/widgets/dialogs/ReplyThreadPopup.cpp
index 83c39b7799a..fc92da91755 100644
--- a/src/widgets/dialogs/ReplyThreadPopup.cpp
+++ b/src/widgets/dialogs/ReplyThreadPopup.cpp
@@ -3,9 +3,13 @@
 #include "Application.hpp"
 #include "common/Channel.hpp"
 #include "common/QLogging.hpp"
+#include "controllers/accounts/AccountController.hpp"
 #include "controllers/hotkeys/HotkeyController.hpp"
+#include "messages/Message.hpp"
 #include "messages/MessageThread.hpp"
+#include "providers/twitch/ChannelPointReward.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
+#include "providers/twitch/TwitchChannel.hpp"
 #include "util/LayoutCreator.hpp"
 #include "widgets/helper/ChannelView.hpp"
 #include "widgets/helper/ResizingTextEdit.hpp"
diff --git a/src/widgets/dialogs/SelectChannelDialog.cpp b/src/widgets/dialogs/SelectChannelDialog.cpp
index 054e5f685ca..1b4cb8965c9 100644
--- a/src/widgets/dialogs/SelectChannelDialog.cpp
+++ b/src/widgets/dialogs/SelectChannelDialog.cpp
@@ -4,7 +4,10 @@
 #include "common/QLogging.hpp"
 #include "controllers/hotkeys/HotkeyController.hpp"
 #include "providers/irc/Irc2.hpp"
+#include "providers/irc/IrcChannel2.hpp"
+#include "providers/irc/IrcServer.hpp"
 #include "providers/twitch/TwitchIrcServer.hpp"
+#include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
 #include "util/LayoutCreator.hpp"
 #include "widgets/dialogs/IrcConnectionEditor.hpp"
diff --git a/src/widgets/dialogs/SelectChannelDialog.hpp b/src/widgets/dialogs/SelectChannelDialog.hpp
index 493a41f8e91..3a4f5a5c0cc 100644
--- a/src/widgets/dialogs/SelectChannelDialog.hpp
+++ b/src/widgets/dialogs/SelectChannelDialog.hpp
@@ -1,7 +1,5 @@
 #pragma once
 
-#include "Application.hpp"
-#include "common/Channel.hpp"
 #include "widgets/BaseWindow.hpp"
 
 #include <pajlada/signals/signal.hpp>
@@ -13,6 +11,9 @@ namespace chatterino {
 
 class Notebook;
 class EditableModelView;
+class IndirectChannel;
+class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
 
 class SelectChannelDialog final : public BaseWindow
 {
diff --git a/src/widgets/dialogs/SelectChannelFiltersDialog.cpp b/src/widgets/dialogs/SelectChannelFiltersDialog.cpp
index 1cf7d75ef26..3b31f17abb7 100644
--- a/src/widgets/dialogs/SelectChannelFiltersDialog.cpp
+++ b/src/widgets/dialogs/SelectChannelFiltersDialog.cpp
@@ -1,5 +1,6 @@
 #include "SelectChannelFiltersDialog.hpp"
 
+#include "controllers/filters/FilterRecord.hpp"
 #include "singletons/Settings.hpp"
 
 #include <QCheckBox>
diff --git a/src/widgets/dialogs/SettingsDialog.cpp b/src/widgets/dialogs/SettingsDialog.cpp
index d07a5480256..d3036554075 100644
--- a/src/widgets/dialogs/SettingsDialog.cpp
+++ b/src/widgets/dialogs/SettingsDialog.cpp
@@ -4,9 +4,10 @@
 #include "common/Args.hpp"
 #include "controllers/commands/CommandController.hpp"
 #include "controllers/hotkeys/HotkeyController.hpp"
-#include "singletons/Resources.hpp"
+#include "singletons/Settings.hpp"
 #include "util/LayoutCreator.hpp"
 #include "widgets/helper/Button.hpp"
+#include "widgets/helper/SettingsDialogTab.hpp"
 #include "widgets/settingspages/AboutPage.hpp"
 #include "widgets/settingspages/AccountsPage.hpp"
 #include "widgets/settingspages/CommandPage.hpp"
diff --git a/src/widgets/dialogs/SettingsDialog.hpp b/src/widgets/dialogs/SettingsDialog.hpp
index 27789920bb8..ad8f873d387 100644
--- a/src/widgets/dialogs/SettingsDialog.hpp
+++ b/src/widgets/dialogs/SettingsDialog.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "widgets/BaseWindow.hpp"
-#include "widgets/helper/SettingsDialogTab.hpp"
 
 #include <pajlada/settings/setting.hpp>
 #include <QFrame>
@@ -19,6 +18,7 @@ namespace chatterino {
 class SettingsPage;
 class SettingsDialogTab;
 class ModerationPage;
+enum class SettingsTabId;
 
 class PageHeader : public QFrame
 {
diff --git a/src/widgets/dialogs/UpdateDialog.hpp b/src/widgets/dialogs/UpdateDialog.hpp
index 48e5eb86b42..be7e481eadf 100644
--- a/src/widgets/dialogs/UpdateDialog.hpp
+++ b/src/widgets/dialogs/UpdateDialog.hpp
@@ -1,14 +1,16 @@
 #pragma once
 
-#include "pajlada/signals/signalholder.hpp"
 #include "singletons/Updates.hpp"
 #include "widgets/BaseWindow.hpp"
-#include "widgets/Label.hpp"
+
+#include <pajlada/signals/signalholder.hpp>
 
 class QPushButton;
 
 namespace chatterino {
 
+class Label;
+
 class UpdateDialog : public BaseWindow
 {
 public:
diff --git a/src/widgets/dialogs/UserInfoPopup.cpp b/src/widgets/dialogs/UserInfoPopup.cpp
index ed7e3303376..de3586870e5 100644
--- a/src/widgets/dialogs/UserInfoPopup.cpp
+++ b/src/widgets/dialogs/UserInfoPopup.cpp
@@ -11,6 +11,7 @@
 #include "messages/MessageBuilder.hpp"
 #include "providers/IvrApi.hpp"
 #include "providers/twitch/api/Helix.hpp"
+#include "providers/twitch/ChannelPointReward.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
 #include "providers/twitch/TwitchChannel.hpp"
 #include "providers/twitch/TwitchIrcServer.hpp"
@@ -21,7 +22,6 @@
 #include "util/Clipboard.hpp"
 #include "util/Helpers.hpp"
 #include "util/LayoutCreator.hpp"
-#include "util/PostToThread.hpp"
 #include "util/StreamerMode.hpp"
 #include "widgets/helper/ChannelView.hpp"
 #include "widgets/helper/EffectLabel.hpp"
diff --git a/src/widgets/dialogs/UserInfoPopup.hpp b/src/widgets/dialogs/UserInfoPopup.hpp
index 8217056663c..5e59094d0f1 100644
--- a/src/widgets/dialogs/UserInfoPopup.hpp
+++ b/src/widgets/dialogs/UserInfoPopup.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "widgets/DraggablePopup.hpp"
-#include "widgets/helper/ChannelView.hpp"
 
 #include <pajlada/signals/scoped-connection.hpp>
 #include <pajlada/signals/signal.hpp>
@@ -15,6 +14,8 @@ namespace chatterino {
 class Channel;
 using ChannelPtr = std::shared_ptr<Channel>;
 class Label;
+class ChannelView;
+class Split;
 
 class UserInfoPopup final : public DraggablePopup
 {
diff --git a/src/widgets/dialogs/switcher/SwitchSplitItem.cpp b/src/widgets/dialogs/switcher/SwitchSplitItem.cpp
index 4802611256e..64fe1bba3c0 100644
--- a/src/widgets/dialogs/switcher/SwitchSplitItem.cpp
+++ b/src/widgets/dialogs/switcher/SwitchSplitItem.cpp
@@ -3,7 +3,9 @@
 #include "Application.hpp"
 #include "singletons/Fonts.hpp"
 #include "singletons/Theme.hpp"
+#include "singletons/WindowManager.hpp"
 #include "widgets/helper/NotebookTab.hpp"
+#include "widgets/splits/Split.hpp"
 
 namespace chatterino {
 
diff --git a/src/widgets/dialogs/switcher/SwitchSplitItem.hpp b/src/widgets/dialogs/switcher/SwitchSplitItem.hpp
index 142d258287f..4343e42bfea 100644
--- a/src/widgets/dialogs/switcher/SwitchSplitItem.hpp
+++ b/src/widgets/dialogs/switcher/SwitchSplitItem.hpp
@@ -1,14 +1,16 @@
 #pragma once
 
-#include "singletons/WindowManager.hpp"
 #include "widgets/dialogs/switcher/AbstractSwitcherItem.hpp"
-#include "widgets/helper/NotebookTab.hpp"
-#include "widgets/Notebook.hpp"
-#include "widgets/splits/Split.hpp"
-#include "widgets/Window.hpp"
+
+#include <QPainter>
+#include <QRect>
+#include <QSize>
 
 namespace chatterino {
 
+class SplitContainer;
+class Split;
+
 class SwitchSplitItem : public AbstractSwitcherItem
 {
 public:
diff --git a/src/widgets/helper/ChannelView.cpp b/src/widgets/helper/ChannelView.cpp
index d89982cae69..6877d79fd55 100644
--- a/src/widgets/helper/ChannelView.cpp
+++ b/src/widgets/helper/ChannelView.cpp
@@ -4,15 +4,19 @@
 #include "common/Common.hpp"
 #include "common/QLogging.hpp"
 #include "controllers/accounts/AccountController.hpp"
+#include "controllers/commands/Command.hpp"
 #include "controllers/commands/CommandController.hpp"
+#include "controllers/filters/FilterSet.hpp"
 #include "debug/Benchmark.hpp"
 #include "messages/Emote.hpp"
+#include "messages/Image.hpp"
 #include "messages/layouts/MessageLayout.hpp"
 #include "messages/layouts/MessageLayoutElement.hpp"
 #include "messages/LimitedQueueSnapshot.hpp"
 #include "messages/Message.hpp"
 #include "messages/MessageBuilder.hpp"
 #include "messages/MessageElement.hpp"
+#include "messages/MessageThread.hpp"
 #include "providers/LinkResolver.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
 #include "providers/twitch/TwitchChannel.hpp"
@@ -31,6 +35,7 @@
 #include "widgets/dialogs/SettingsDialog.hpp"
 #include "widgets/dialogs/UserInfoPopup.hpp"
 #include "widgets/helper/EffectLabel.hpp"
+#include "widgets/helper/ScrollbarHighlight.hpp"
 #include "widgets/helper/SearchPopup.hpp"
 #include "widgets/Scrollbar.hpp"
 #include "widgets/splits/Split.hpp"
diff --git a/src/widgets/helper/ChannelView.hpp b/src/widgets/helper/ChannelView.hpp
index afb1e836e0f..0d5e1b3e3ad 100644
--- a/src/widgets/helper/ChannelView.hpp
+++ b/src/widgets/helper/ChannelView.hpp
@@ -1,8 +1,6 @@
 #pragma once
 
 #include "common/FlagsEnum.hpp"
-#include "controllers/filters/FilterSet.hpp"
-#include "messages/Image.hpp"
 #include "messages/LimitedQueue.hpp"
 #include "messages/LimitedQueueSnapshot.hpp"
 #include "messages/Selection.hpp"
@@ -10,6 +8,7 @@
 #include "widgets/BaseWidget.hpp"
 
 #include <pajlada/signals/signal.hpp>
+#include <QMenu>
 #include <QPaintEvent>
 #include <QScroller>
 #include <QTimer>
@@ -43,6 +42,8 @@ class EffectLabel;
 struct Link;
 class MessageLayoutElement;
 class Split;
+class FilterSet;
+using FilterSetPtr = std::shared_ptr<FilterSet>;
 
 enum class PauseReason {
     Mouse,
diff --git a/src/widgets/helper/EffectLabel.hpp b/src/widgets/helper/EffectLabel.hpp
index f1fbc5dff0d..b6ea8af0870 100644
--- a/src/widgets/helper/EffectLabel.hpp
+++ b/src/widgets/helper/EffectLabel.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include "widgets/BaseWidget.hpp"
 #include "widgets/helper/Button.hpp"
 #include "widgets/helper/SignalLabel.hpp"
 #include "widgets/Label.hpp"
diff --git a/src/widgets/helper/NotebookTab.hpp b/src/widgets/helper/NotebookTab.hpp
index 31e7563c98f..37cf1b3b6ed 100644
--- a/src/widgets/helper/NotebookTab.hpp
+++ b/src/widgets/helper/NotebookTab.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "common/Common.hpp"
-#include "widgets/BaseWidget.hpp"
 #include "widgets/helper/Button.hpp"
 #include "widgets/Notebook.hpp"
 
@@ -14,8 +13,6 @@ namespace chatterino {
 
 #define NOTEBOOK_TAB_HEIGHT 28
 
-// class Notebook;
-class Notebook;
 class SplitContainer;
 
 class NotebookTab : public Button
diff --git a/src/widgets/helper/SearchPopup.cpp b/src/widgets/helper/SearchPopup.cpp
index a7524abf405..0c0f055272f 100644
--- a/src/widgets/helper/SearchPopup.cpp
+++ b/src/widgets/helper/SearchPopup.cpp
@@ -1,7 +1,10 @@
 #include "SearchPopup.hpp"
 
+#include "Application.hpp"
 #include "common/Channel.hpp"
+#include "controllers/filters/FilterSet.hpp"
 #include "controllers/hotkeys/HotkeyController.hpp"
+#include "messages/MessageElement.hpp"
 #include "messages/search/AuthorPredicate.hpp"
 #include "messages/search/BadgePredicate.hpp"
 #include "messages/search/ChannelPredicate.hpp"
@@ -12,6 +15,7 @@
 #include "messages/search/SubtierPredicate.hpp"
 #include "singletons/WindowManager.hpp"
 #include "widgets/helper/ChannelView.hpp"
+#include "widgets/splits/Split.hpp"
 
 #include <QHBoxLayout>
 #include <QLineEdit>
diff --git a/src/widgets/helper/SearchPopup.hpp b/src/widgets/helper/SearchPopup.hpp
index e95fcf0ceb5..d7caab885ac 100644
--- a/src/widgets/helper/SearchPopup.hpp
+++ b/src/widgets/helper/SearchPopup.hpp
@@ -1,11 +1,8 @@
 #pragma once
 
-#include "controllers/filters/FilterSet.hpp"
 #include "ForwardDecl.hpp"
 #include "messages/LimitedQueueSnapshot.hpp"
-#include "messages/search/MessagePredicate.hpp"
 #include "widgets/BasePopup.hpp"
-#include "widgets/splits/Split.hpp"
 
 #include <memory>
 
@@ -13,6 +10,9 @@ class QLineEdit;
 
 namespace chatterino {
 
+class Split;
+class MessagePredicate;
+
 class SearchPopup : public BasePopup
 {
 public:
diff --git a/src/widgets/helper/SettingsDialogTab.hpp b/src/widgets/helper/SettingsDialogTab.hpp
index a6c72bdb611..1c907ad459d 100644
--- a/src/widgets/helper/SettingsDialogTab.hpp
+++ b/src/widgets/helper/SettingsDialogTab.hpp
@@ -13,7 +13,7 @@ namespace chatterino {
 class SettingsPage;
 class SettingsDialog;
 
-enum SettingsTabId {
+enum class SettingsTabId {
     None,
     Accounts,
     Moderation,
diff --git a/src/widgets/listview/GenericListModel.hpp b/src/widgets/listview/GenericListModel.hpp
index ae64f285907..0f2fe21751c 100644
--- a/src/widgets/listview/GenericListModel.hpp
+++ b/src/widgets/listview/GenericListModel.hpp
@@ -1,3 +1,5 @@
+#pragma once
+
 #include "widgets/listview/GenericListItem.hpp"
 
 #include <QAbstractListModel>
diff --git a/src/widgets/listview/GenericListView.hpp b/src/widgets/listview/GenericListView.hpp
index 10aea451678..0ae0f08d286 100644
--- a/src/widgets/listview/GenericListView.hpp
+++ b/src/widgets/listview/GenericListView.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "widgets/listview/GenericItemDelegate.hpp"
-#include "widgets/listview/GenericListItem.hpp"
 
 #include <QListView>
 
diff --git a/src/widgets/settingspages/AccountsPage.hpp b/src/widgets/settingspages/AccountsPage.hpp
index 58fc02db679..fd24c842236 100644
--- a/src/widgets/settingspages/AccountsPage.hpp
+++ b/src/widgets/settingspages/AccountsPage.hpp
@@ -1,12 +1,13 @@
 #pragma once
 
-#include "widgets/AccountSwitchWidget.hpp"
 #include "widgets/settingspages/SettingsPage.hpp"
 
 #include <QPushButton>
 
 namespace chatterino {
 
+class AccountSwitchWidget;
+
 class AccountsPage : public SettingsPage
 {
 public:
diff --git a/src/widgets/settingspages/CommandPage.cpp b/src/widgets/settingspages/CommandPage.cpp
index fd971b9e6d0..1e648f4722c 100644
--- a/src/widgets/settingspages/CommandPage.cpp
+++ b/src/widgets/settingspages/CommandPage.cpp
@@ -1,9 +1,13 @@
 #include "CommandPage.hpp"
 
 #include "Application.hpp"
+#include "controllers/commands/Command.hpp"
 #include "controllers/commands/CommandController.hpp"
 #include "controllers/commands/CommandModel.hpp"
+#include "singletons/Settings.hpp"
+#include "util/CombinePath.hpp"
 #include "util/LayoutCreator.hpp"
+#include "util/Qt.hpp"
 #include "util/StandardItemHelper.hpp"
 #include "widgets/helper/EditableModelView.hpp"
 
@@ -13,12 +17,6 @@
 #include <QStandardItemModel>
 #include <QTableView>
 #include <QTextEdit>
-//#include "widgets/helper/ComboBoxItemDelegate.hpp"
-#include "util/CombinePath.hpp"
-#include "util/Qt.hpp"
-
-#include <QLabel>
-#include <QTextEdit>
 
 // clang-format off
 #define TEXT "{1} => first word &nbsp;&nbsp;&nbsp; {1+} => first word and after &nbsp;&nbsp;&nbsp; {{ => { &nbsp;&nbsp;&nbsp; <a href='https://chatterino.com/help/commands'>more info</a>"
diff --git a/src/widgets/settingspages/ExternalToolsPage.cpp b/src/widgets/settingspages/ExternalToolsPage.cpp
index 68db6d8eac7..6fb615d93cd 100644
--- a/src/widgets/settingspages/ExternalToolsPage.cpp
+++ b/src/widgets/settingspages/ExternalToolsPage.cpp
@@ -1,6 +1,6 @@
 #include "ExternalToolsPage.hpp"
 
-#include "Application.hpp"
+#include "singletons/Settings.hpp"
 #include "util/Helpers.hpp"
 #include "util/LayoutCreator.hpp"
 #include "util/RemoveScrollAreaBackground.hpp"
diff --git a/src/widgets/settingspages/FiltersPage.cpp b/src/widgets/settingspages/FiltersPage.cpp
index d4262064584..1268ff132e8 100644
--- a/src/widgets/settingspages/FiltersPage.cpp
+++ b/src/widgets/settingspages/FiltersPage.cpp
@@ -1,6 +1,8 @@
 #include "FiltersPage.hpp"
 
+#include "Application.hpp"
 #include "controllers/filters/FilterModel.hpp"
+#include "controllers/filters/FilterRecord.hpp"
 #include "singletons/Settings.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/LayoutCreator.hpp"
diff --git a/src/widgets/settingspages/FiltersPage.hpp b/src/widgets/settingspages/FiltersPage.hpp
index b6f95e01a4c..febf9a8edf0 100644
--- a/src/widgets/settingspages/FiltersPage.hpp
+++ b/src/widgets/settingspages/FiltersPage.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include "widgets/helper/EditableModelView.hpp"
 #include "widgets/settingspages/SettingsPage.hpp"
 
 #include <QStringListModel>
@@ -9,6 +8,8 @@ class QVBoxLayout;
 
 namespace chatterino {
 
+class EditableModelView;
+
 class FiltersPage : public SettingsPage
 {
 public:
diff --git a/src/widgets/settingspages/GeneralPage.cpp b/src/widgets/settingspages/GeneralPage.cpp
index 3ba79516e96..3de5a77afc0 100644
--- a/src/widgets/settingspages/GeneralPage.cpp
+++ b/src/widgets/settingspages/GeneralPage.cpp
@@ -10,14 +10,13 @@
 #include "singletons/Fonts.hpp"
 #include "singletons/NativeMessaging.hpp"
 #include "singletons/Paths.hpp"
+#include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
-#include "singletons/WindowManager.hpp"
 #include "util/FuzzyConvert.hpp"
 #include "util/Helpers.hpp"
 #include "util/IncognitoBrowser.hpp"
 #include "util/StreamerMode.hpp"
 #include "widgets/BaseWindow.hpp"
-#include "widgets/helper/Line.hpp"
 #include "widgets/settingspages/GeneralPageView.hpp"
 #include "widgets/splits/SplitInput.hpp"
 
diff --git a/src/widgets/settingspages/GeneralPageView.cpp b/src/widgets/settingspages/GeneralPageView.cpp
index 70733b95364..0d1ab0b25a4 100644
--- a/src/widgets/settingspages/GeneralPageView.cpp
+++ b/src/widgets/settingspages/GeneralPageView.cpp
@@ -1,7 +1,6 @@
 #include "widgets/settingspages/GeneralPageView.hpp"
 
 #include "Application.hpp"
-#include "singletons/WindowManager.hpp"
 #include "util/LayoutHelper.hpp"
 #include "util/RapidJsonSerializeQString.hpp"
 #include "widgets/dialogs/ColorPickerDialog.hpp"
@@ -9,6 +8,7 @@
 #include "widgets/helper/Line.hpp"
 
 #include <QRegularExpression>
+#include <QScrollArea>
 #include <QScrollBar>
 
 namespace {
diff --git a/src/widgets/settingspages/HighlightingPage.cpp b/src/widgets/settingspages/HighlightingPage.cpp
index e794eea33b2..04b5058bf62 100644
--- a/src/widgets/settingspages/HighlightingPage.cpp
+++ b/src/widgets/settingspages/HighlightingPage.cpp
@@ -2,16 +2,20 @@
 
 #include "Application.hpp"
 #include "controllers/highlights/BadgeHighlightModel.hpp"
+#include "controllers/highlights/HighlightBadge.hpp"
 #include "controllers/highlights/HighlightBlacklistModel.hpp"
+#include "controllers/highlights/HighlightBlacklistUser.hpp"
 #include "controllers/highlights/HighlightModel.hpp"
+#include "controllers/highlights/HighlightPhrase.hpp"
 #include "controllers/highlights/UserHighlightModel.hpp"
+#include "providers/colors/ColorProvider.hpp"
 #include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
 #include "util/Helpers.hpp"
 #include "util/LayoutCreator.hpp"
-#include "util/StandardItemHelper.hpp"
 #include "widgets/dialogs/BadgePickerDialog.hpp"
 #include "widgets/dialogs/ColorPickerDialog.hpp"
+#include "widgets/helper/EditableModelView.hpp"
 
 #include <QFileDialog>
 #include <QHeaderView>
diff --git a/src/widgets/settingspages/HighlightingPage.hpp b/src/widgets/settingspages/HighlightingPage.hpp
index 487bf9f7240..47a9c3e3a32 100644
--- a/src/widgets/settingspages/HighlightingPage.hpp
+++ b/src/widgets/settingspages/HighlightingPage.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include "widgets/helper/EditableModelView.hpp"
 #include "widgets/settingspages/SettingsPage.hpp"
 
 #include <QAbstractTableModel>
@@ -11,6 +10,8 @@ class QListWidget;
 
 namespace chatterino {
 
+class EditableModelView;
+
 class HighlightingPage : public SettingsPage
 {
 public:
diff --git a/src/widgets/settingspages/IgnoresPage.cpp b/src/widgets/settingspages/IgnoresPage.cpp
index 661fbd6fc67..c8aefe07f27 100644
--- a/src/widgets/settingspages/IgnoresPage.cpp
+++ b/src/widgets/settingspages/IgnoresPage.cpp
@@ -4,7 +4,9 @@
 #include "controllers/accounts/AccountController.hpp"
 #include "controllers/ignores/IgnoreController.hpp"
 #include "controllers/ignores/IgnoreModel.hpp"
+#include "controllers/ignores/IgnorePhrase.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
+#include "providers/twitch/TwitchUser.hpp"
 #include "singletons/Settings.hpp"
 #include "util/LayoutCreator.hpp"
 #include "widgets/helper/EditableModelView.hpp"
diff --git a/src/widgets/settingspages/KeyboardSettingsPage.cpp b/src/widgets/settingspages/KeyboardSettingsPage.cpp
index 89932fcd50a..011be06ace1 100644
--- a/src/widgets/settingspages/KeyboardSettingsPage.cpp
+++ b/src/widgets/settingspages/KeyboardSettingsPage.cpp
@@ -2,14 +2,17 @@
 
 #include "Application.hpp"
 #include "common/QLogging.hpp"
+#include "controllers/hotkeys/Hotkey.hpp"
 #include "controllers/hotkeys/HotkeyController.hpp"
 #include "controllers/hotkeys/HotkeyModel.hpp"
 #include "util/LayoutCreator.hpp"
 #include "widgets/dialogs/EditHotkeyDialog.hpp"
+#include "widgets/helper/EditableModelView.hpp"
 
 #include <QFormLayout>
 #include <QHeaderView>
 #include <QLabel>
+#include <QMessageBox>
 #include <QTableView>
 
 namespace chatterino {
diff --git a/src/widgets/settingspages/KeyboardSettingsPage.hpp b/src/widgets/settingspages/KeyboardSettingsPage.hpp
index 1da25070b82..2a7d1dff99e 100644
--- a/src/widgets/settingspages/KeyboardSettingsPage.hpp
+++ b/src/widgets/settingspages/KeyboardSettingsPage.hpp
@@ -1,11 +1,11 @@
 #pragma once
 
-#include "widgets/helper/EditableModelView.hpp"
 #include "widgets/settingspages/SettingsPage.hpp"
 
 namespace chatterino {
 
 class HotkeyModel;
+class EditableModelView;
 
 class KeyboardSettingsPage : public SettingsPage
 {
diff --git a/src/widgets/settingspages/ModerationPage.cpp b/src/widgets/settingspages/ModerationPage.cpp
index 074c7105f91..64b340d0de0 100644
--- a/src/widgets/settingspages/ModerationPage.cpp
+++ b/src/widgets/settingspages/ModerationPage.cpp
@@ -1,25 +1,22 @@
 #include "ModerationPage.hpp"
 
 #include "Application.hpp"
+#include "controllers/moderationactions/ModerationAction.hpp"
 #include "controllers/moderationactions/ModerationActionModel.hpp"
 #include "singletons/Logging.hpp"
 #include "singletons/Paths.hpp"
+#include "singletons/Settings.hpp"
 #include "util/Helpers.hpp"
 #include "util/LayoutCreator.hpp"
 #include "widgets/helper/EditableModelView.hpp"
 
 #include <QFileDialog>
-#include <QFormLayout>
-#include <QGroupBox>
 #include <QHBoxLayout>
 #include <QHeaderView>
 #include <QLabel>
-#include <QListView>
 #include <QPushButton>
 #include <QTableView>
 #include <QtConcurrent/QtConcurrent>
-#include <QTextEdit>
-#include <QVBoxLayout>
 
 namespace chatterino {
 
diff --git a/src/widgets/settingspages/NicknamesPage.cpp b/src/widgets/settingspages/NicknamesPage.cpp
index 277007f64a9..e8fcf56feeb 100644
--- a/src/widgets/settingspages/NicknamesPage.cpp
+++ b/src/widgets/settingspages/NicknamesPage.cpp
@@ -1,11 +1,11 @@
 #include "NicknamesPage.hpp"
 
+#include "controllers/nicknames/Nickname.hpp"
 #include "controllers/nicknames/NicknamesModel.hpp"
 #include "singletons/Settings.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/LayoutCreator.hpp"
 #include "widgets/helper/EditableModelView.hpp"
-#include "widgets/Window.hpp"
 
 #include <QHeaderView>
 #include <QTableView>
diff --git a/src/widgets/settingspages/NicknamesPage.hpp b/src/widgets/settingspages/NicknamesPage.hpp
index 59b2f710244..a3cf9e64152 100644
--- a/src/widgets/settingspages/NicknamesPage.hpp
+++ b/src/widgets/settingspages/NicknamesPage.hpp
@@ -1,12 +1,7 @@
 #pragma once
 
-#include "widgets/helper/EditableModelView.hpp"
 #include "widgets/settingspages/SettingsPage.hpp"
 
-#include <QStringListModel>
-
-class QVBoxLayout;
-
 namespace chatterino {
 
 class NicknamesPage : public SettingsPage
diff --git a/src/widgets/settingspages/NotificationPage.hpp b/src/widgets/settingspages/NotificationPage.hpp
index 7b175902052..3d60e3f48fe 100644
--- a/src/widgets/settingspages/NotificationPage.hpp
+++ b/src/widgets/settingspages/NotificationPage.hpp
@@ -2,10 +2,7 @@
 
 #include "widgets/settingspages/SettingsPage.hpp"
 
-class QPushButton;
-class QListWidget;
-
-class QVBoxLayout;
+class QComboBox;
 
 namespace chatterino {
 
diff --git a/src/widgets/settingspages/SettingsPage.cpp b/src/widgets/settingspages/SettingsPage.cpp
index 02b7157d036..bedb52067d3 100644
--- a/src/widgets/settingspages/SettingsPage.cpp
+++ b/src/widgets/settingspages/SettingsPage.cpp
@@ -2,10 +2,10 @@
 
 #include "Application.hpp"
 #include "singletons/WindowManager.hpp"
+#include "util/FunctionEventFilter.hpp"
+#include "util/RapidJsonSerializeQString.hpp"
 
 #include <QDebug>
-#include <QPainter>
-#include <util/FunctionEventFilter.hpp>
 
 namespace chatterino {
 
diff --git a/src/widgets/settingspages/SettingsPage.hpp b/src/widgets/settingspages/SettingsPage.hpp
index ed66c1fb2da..245f482cec4 100644
--- a/src/widgets/settingspages/SettingsPage.hpp
+++ b/src/widgets/settingspages/SettingsPage.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
-#include "singletons/Settings.hpp"
-
+#include <pajlada/settings.hpp>
 #include <pajlada/signals/signal.hpp>
 #include <QCheckBox>
 #include <QComboBox>
diff --git a/src/widgets/splits/ClosedSplits.hpp b/src/widgets/splits/ClosedSplits.hpp
index de692a6701a..d93d4f7b165 100644
--- a/src/widgets/splits/ClosedSplits.hpp
+++ b/src/widgets/splits/ClosedSplits.hpp
@@ -1,8 +1,6 @@
 #pragma once
 
-#include "common/Channel.hpp"
-#include "widgets/helper/NotebookTab.hpp"
-
+#include <QList>
 #include <QUuid>
 
 #include <deque>
@@ -11,6 +9,8 @@
 
 namespace chatterino {
 
+class NotebookTab;
+
 class ClosedSplits
 {
 public:
diff --git a/src/widgets/splits/InputCompletionItem.cpp b/src/widgets/splits/InputCompletionItem.cpp
index 99994b60584..49b7ada97c2 100644
--- a/src/widgets/splits/InputCompletionItem.cpp
+++ b/src/widgets/splits/InputCompletionItem.cpp
@@ -1,4 +1,7 @@
-#include "InputCompletionItem.hpp"
+#include "widgets/splits/InputCompletionItem.hpp"
+
+#include "messages/Emote.hpp"
+#include "messages/Image.hpp"
 
 namespace chatterino {
 
diff --git a/src/widgets/splits/InputCompletionItem.hpp b/src/widgets/splits/InputCompletionItem.hpp
index 30707463ab8..19af4131623 100644
--- a/src/widgets/splits/InputCompletionItem.hpp
+++ b/src/widgets/splits/InputCompletionItem.hpp
@@ -1,12 +1,14 @@
 #pragma once
 
-#include "messages/Emote.hpp"
 #include "widgets/listview/GenericListItem.hpp"
 
 #include <functional>
 
 namespace chatterino {
 
+struct Emote;
+using EmotePtr = std::shared_ptr<const Emote>;
+
 class InputCompletionItem : public GenericListItem
 {
     using ActionCallback = std::function<void(const QString &)>;
diff --git a/src/widgets/splits/InputCompletionPopup.hpp b/src/widgets/splits/InputCompletionPopup.hpp
index 38eec2256fd..a267336936f 100644
--- a/src/widgets/splits/InputCompletionPopup.hpp
+++ b/src/widgets/splits/InputCompletionPopup.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include "common/Channel.hpp"
 #include "widgets/BasePopup.hpp"
 #include "widgets/listview/GenericListModel.hpp"
 
@@ -8,6 +7,9 @@
 
 namespace chatterino {
 
+class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
+
 class GenericListView;
 
 class InputCompletionPopup : public BasePopup
diff --git a/src/widgets/splits/Split.cpp b/src/widgets/splits/Split.cpp
index b4454ba3002..a55c2571db3 100644
--- a/src/widgets/splits/Split.cpp
+++ b/src/widgets/splits/Split.cpp
@@ -2,15 +2,14 @@
 
 #include "Application.hpp"
 #include "common/Common.hpp"
-#include "common/Env.hpp"
 #include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "common/QLogging.hpp"
 #include "controllers/accounts/AccountController.hpp"
 #include "controllers/commands/CommandController.hpp"
 #include "controllers/hotkeys/HotkeyController.hpp"
 #include "controllers/notifications/NotificationController.hpp"
 #include "messages/MessageThread.hpp"
-#include "providers/twitch/EmoteValue.hpp"
 #include "providers/twitch/TwitchAccount.hpp"
 #include "providers/twitch/TwitchChannel.hpp"
 #include "providers/twitch/TwitchIrcServer.hpp"
diff --git a/src/widgets/splits/Split.hpp b/src/widgets/splits/Split.hpp
index 51543234351..20993004578 100644
--- a/src/widgets/splits/Split.hpp
+++ b/src/widgets/splits/Split.hpp
@@ -3,10 +3,10 @@
 #include "common/Aliases.hpp"
 #include "common/Channel.hpp"
 #include "common/NullablePtr.hpp"
-#include "pajlada/signals/signalholder.hpp"
 #include "widgets/BaseWidget.hpp"
 
 #include <boost/signals2.hpp>
+#include <pajlada/signals/signalholder.hpp>
 #include <QFont>
 #include <QShortcut>
 #include <QVBoxLayout>
diff --git a/src/widgets/splits/SplitContainer.cpp b/src/widgets/splits/SplitContainer.cpp
index 65dde68a366..2fdc5d0cb15 100644
--- a/src/widgets/splits/SplitContainer.cpp
+++ b/src/widgets/splits/SplitContainer.cpp
@@ -3,6 +3,7 @@
 #include "Application.hpp"
 #include "common/Common.hpp"
 #include "common/QLogging.hpp"
+#include "common/WindowDescriptors.hpp"
 #include "debug/AssertInGuiThread.hpp"
 #include "singletons/Fonts.hpp"
 #include "singletons/Theme.hpp"
@@ -15,7 +16,6 @@
 #include "widgets/splits/Split.hpp"
 #include "widgets/Window.hpp"
 
-#include <boost/foreach.hpp>
 #include <QApplication>
 #include <QJsonArray>
 #include <QJsonObject>
diff --git a/src/widgets/splits/SplitContainer.hpp b/src/widgets/splits/SplitContainer.hpp
index 2a37c890707..7e4d752f819 100644
--- a/src/widgets/splits/SplitContainer.hpp
+++ b/src/widgets/splits/SplitContainer.hpp
@@ -12,6 +12,7 @@
 #include <algorithm>
 #include <optional>
 #include <unordered_map>
+#include <variant>
 #include <vector>
 
 class QJsonObject;
diff --git a/src/widgets/splits/SplitHeader.cpp b/src/widgets/splits/SplitHeader.cpp
index bf774fa9cec..b752c037085 100644
--- a/src/widgets/splits/SplitHeader.cpp
+++ b/src/widgets/splits/SplitHeader.cpp
@@ -1,6 +1,9 @@
 #include "widgets/splits/SplitHeader.hpp"
 
 #include "Application.hpp"
+#include "common/NetworkCommon.hpp"
+#include "common/NetworkRequest.hpp"
+#include "common/NetworkResult.hpp"
 #include "controllers/accounts/AccountController.hpp"
 #include "controllers/commands/CommandController.hpp"
 #include "controllers/hotkeys/Hotkey.hpp"
@@ -15,7 +18,6 @@
 #include "singletons/Theme.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/Helpers.hpp"
-#include "util/LayoutCreator.hpp"
 #include "util/LayoutHelper.hpp"
 #include "util/StreamerMode.hpp"
 #include "widgets/dialogs/SettingsDialog.hpp"
diff --git a/src/widgets/splits/SplitInput.cpp b/src/widgets/splits/SplitInput.cpp
index a9ef07174c2..fa631fae9ea 100644
--- a/src/widgets/splits/SplitInput.cpp
+++ b/src/widgets/splits/SplitInput.cpp
@@ -5,6 +5,8 @@
 #include "controllers/commands/CommandController.hpp"
 #include "controllers/hotkeys/HotkeyController.hpp"
 #include "messages/Link.hpp"
+#include "messages/Message.hpp"
+#include "messages/MessageThread.hpp"
 #include "providers/twitch/TwitchChannel.hpp"
 #include "providers/twitch/TwitchCommon.hpp"
 #include "providers/twitch/TwitchIrcServer.hpp"
@@ -22,7 +24,6 @@
 #include "widgets/splits/InputCompletionPopup.hpp"
 #include "widgets/splits/Split.hpp"
 #include "widgets/splits/SplitContainer.hpp"
-#include "widgets/splits/SplitInput.hpp"
 
 #include <QCompleter>
 #include <QPainter>
diff --git a/src/widgets/splits/SplitInput.hpp b/src/widgets/splits/SplitInput.hpp
index 865cf401290..a0ec5eb5265 100644
--- a/src/widgets/splits/SplitInput.hpp
+++ b/src/widgets/splits/SplitInput.hpp
@@ -2,7 +2,6 @@
 
 #include "util/QObjectRef.hpp"
 #include "widgets/BaseWidget.hpp"
-#include "widgets/dialogs/EmotePopup.hpp"
 
 #include <QHBoxLayout>
 #include <QLabel>
diff --git a/src/widgets/splits/SplitOverlay.hpp b/src/widgets/splits/SplitOverlay.hpp
index 66a3669e984..caaf076542f 100644
--- a/src/widgets/splits/SplitOverlay.hpp
+++ b/src/widgets/splits/SplitOverlay.hpp
@@ -1,8 +1,8 @@
 #pragma once
 
-#include "pajlada/signals/signalholder.hpp"
 #include "widgets/BaseWidget.hpp"
 
+#include <pajlada/signals/signalholder.hpp>
 #include <QGridLayout>
 #include <QPushButton>
 
diff --git a/tests/src/ChannelChatters.cpp b/tests/src/ChannelChatters.cpp
index e0006a205cc..328c50e6c71 100644
--- a/tests/src/ChannelChatters.cpp
+++ b/tests/src/ChannelChatters.cpp
@@ -1,5 +1,7 @@
 #include "common/ChannelChatters.hpp"
 
+#include "common/Channel.hpp"
+
 #include <gtest/gtest.h>
 #include <QColor>
 #include <QStringList>
diff --git a/tests/src/HighlightController.cpp b/tests/src/HighlightController.cpp
index 6db834d1826..c712709d6d5 100644
--- a/tests/src/HighlightController.cpp
+++ b/tests/src/HighlightController.cpp
@@ -2,10 +2,13 @@
 
 #include "Application.hpp"
 #include "BaseSettings.hpp"
+#include "controllers/accounts/AccountController.hpp"
 #include "messages/MessageBuilder.hpp"  // for MessageParseArgs
 #include "mocks/UserData.hpp"
 #include "providers/twitch/api/Helix.hpp"
 #include "providers/twitch/TwitchBadge.hpp"  // for Badge
+#include "singletons/Paths.hpp"
+#include "singletons/Settings.hpp"
 
 #include <boost/optional/optional_io.hpp>
 #include <gmock/gmock.h>
diff --git a/tests/src/SeventvEventAPI.cpp b/tests/src/SeventvEventAPI.cpp
index 6df942104d0..bdde3207a31 100644
--- a/tests/src/SeventvEventAPI.cpp
+++ b/tests/src/SeventvEventAPI.cpp
@@ -1,5 +1,9 @@
 #include "providers/seventv/SeventvEventAPI.hpp"
 
+#include "providers/seventv/eventapi/SeventvEventAPIClient.hpp"
+#include "providers/seventv/eventapi/SeventvEventAPIDispatch.hpp"
+#include "providers/seventv/eventapi/SeventvEventAPIMessage.hpp"
+
 #include <boost/optional.hpp>
 #include <gtest/gtest.h>
 #include <QString>
diff --git a/tests/src/TwitchPubSubClient.cpp b/tests/src/TwitchPubSubClient.cpp
index d3f05cc528e..86739fc4ad1 100644
--- a/tests/src/TwitchPubSubClient.cpp
+++ b/tests/src/TwitchPubSubClient.cpp
@@ -1,7 +1,13 @@
 #include "providers/twitch/PubSubActions.hpp"
+#include "providers/twitch/PubSubClient.hpp"
 #include "providers/twitch/PubSubManager.hpp"
+#include "providers/twitch/pubsubmessages/AutoMod.hpp"
+#include "providers/twitch/pubsubmessages/Whisper.hpp"
 
 #include <gtest/gtest.h>
+#include <QString>
+
+#include <chrono>
 
 using namespace chatterino;
 using namespace std::chrono_literals;