From 6037f76c1ec2bad7abf34b6971b477b1109439c9 Mon Sep 17 00:00:00 2001
From: Mentlegen <9807008+gentlementlegen@users.noreply.github.com>
Date: Thu, 24 Oct 2024 17:29:20 +0900
Subject: [PATCH] refactor: optimize plugin chain handling with Promise.all

Utilize Promise.all to concurrently handle plugin chains and improve efficiency.
---
 src/github/handlers/index.ts | 94 +++++++++++++++++++-----------------
 1 file changed, 50 insertions(+), 44 deletions(-)

diff --git a/src/github/handlers/index.ts b/src/github/handlers/index.ts
index 3905d0e..21876a0 100644
--- a/src/github/handlers/index.ts
+++ b/src/github/handlers/index.ts
@@ -69,50 +69,56 @@ async function handleEvent(event: EmitterWebhookEvent, eventHandler: InstanceTyp
     return;
   }
 
-  for (const pluginChain of pluginChains) {
-    if (await shouldSkipPlugin(context, pluginChain)) {
-      continue;
-    }
-
-    // invoke the first plugin in the chain
-    const { plugin, with: settings } = pluginChain.uses[0];
-    const isGithubPluginObject = isGithubPlugin(plugin);
-    console.log(`Calling handler ${JSON.stringify(plugin)} for event ${event.name}`);
-
-    const stateId = crypto.randomUUID();
-
-    const state = {
-      eventId: context.id,
-      eventName: context.key,
-      eventPayload: event.payload,
-      currentPlugin: 0,
-      pluginChain: pluginChain.uses,
-      outputs: new Array(pluginChain.uses.length),
-      inputs: new Array(pluginChain.uses.length),
-    };
-
-    const ref = isGithubPluginObject ? (plugin.ref ?? (await getDefaultBranch(context, plugin.owner, plugin.repo))) : plugin;
-    const token = await eventHandler.getToken(event.payload.installation.id);
-    const inputs = new PluginInput(context.eventHandler, stateId, context.key, event.payload, settings, token, ref);
-
-    state.inputs[0] = inputs;
-    await eventHandler.pluginChainState.put(stateId, state);
+  await Promise.all(
+    pluginChains.map(async (pluginChain) => {
+      if (await shouldSkipPlugin(context, pluginChain)) {
+        return;
+      }
+      if (!("installation" in event.payload) || event.payload.installation?.id === undefined) {
+        console.log(`No installation found, cannot invoke plugin`, pluginChain);
+        return;
+      }
 
-    // We wrap the dispatch so a failing plugin doesn't break the whole execution
-    try {
-      if (!isGithubPluginObject) {
-        await dispatchWorker(plugin, await inputs.getWorkerInputs());
-      } else {
-        await dispatchWorkflow(context, {
-          owner: plugin.owner,
-          repository: plugin.repo,
-          workflowId: plugin.workflowId,
-          ref: plugin.ref,
-          inputs: await inputs.getWorkflowInputs(),
-        });
+      // invoke the first plugin in the chain
+      const { plugin, with: settings } = pluginChain.uses[0];
+      const isGithubPluginObject = isGithubPlugin(plugin);
+      console.log(`Calling handler ${JSON.stringify(plugin)} for event ${event.name}`);
+
+      const stateId = crypto.randomUUID();
+
+      const state = {
+        eventId: context.id,
+        eventName: context.key,
+        eventPayload: event.payload,
+        currentPlugin: 0,
+        pluginChain: pluginChain.uses,
+        outputs: new Array(pluginChain.uses.length),
+        inputs: new Array(pluginChain.uses.length),
+      };
+
+      const ref = isGithubPluginObject ? (plugin.ref ?? (await getDefaultBranch(context, plugin.owner, plugin.repo))) : plugin;
+      const token = await eventHandler.getToken(event.payload.installation.id);
+      const inputs = new PluginInput(context.eventHandler, stateId, context.key, event.payload, settings, token, ref);
+
+      state.inputs[0] = inputs;
+      await eventHandler.pluginChainState.put(stateId, state);
+
+      // We wrap the dispatch so a failing plugin doesn't break the whole execution
+      try {
+        if (!isGithubPluginObject) {
+          await dispatchWorker(plugin, await inputs.getWorkerInputs());
+        } else {
+          await dispatchWorkflow(context, {
+            owner: plugin.owner,
+            repository: plugin.repo,
+            workflowId: plugin.workflowId,
+            ref: plugin.ref,
+            inputs: await inputs.getWorkflowInputs(),
+          });
+        }
+      } catch (e) {
+        console.error(`An error occurred while processing the plugin chain, will skip plugin ${JSON.stringify(plugin)}`, e);
       }
-    } catch (e) {
-      console.error(`An error occurred while processing the plugin chain, will skip plugin ${JSON.stringify(plugin)}`, e);
-    }
-  }
+    })
+  );
 }