fail builds with wrong API levels

Plogon/BuildProcessor.cs

@@ -980,14 +980,18 @@ await this.dockerClient.Containers.RemoveContainerAsync(containerCreateResponse.
                         Directory.Move(imagesSourcePath, imagesDestinationPath);
                     }
 
-                    // DELETE THIS!!
                     var manifestFile = new FileInfo(Path.Combine(repoOutputDir.FullName, $"{task.InternalName}.json"));
                     var manifestText = await File.ReadAllTextAsync(manifestFile.FullName);
 
                     var manifestObj = JObject.Parse(manifestText);
                     manifestObj["_isDip17Plugin"] = true;
                     manifestObj["_Dip17Channel"] = task.Channel;
 
+                    // Get this from an API or something
+                    var apiLevel = manifestObj["DalamudApiLevel"]?.Value<int>();
+                    if (apiLevel is not PlogonSystemDefine.API_LEVEL)
+                        throw new ApiLevelException(apiLevel ?? 0, PlogonSystemDefine.API_LEVEL);
+
                     await File.WriteAllTextAsync(manifestFile.FullName, manifestObj.ToString());
                 }
                 catch (Exception ex)
@@ -1033,4 +1037,30 @@ public MissingIconException()
         {
         }
     }
+
+    /// <summary>
+    /// Exception when wrong API level is used
+    /// </summary>
+    public class ApiLevelException : Exception
+    {
+        /// <summary>
+        /// Have version
+        /// </summary>
+        public int Have { get; }
+
+        /// <summary>
+        /// Want version
+        /// </summary>
+        public int Want { get; }
+
+        /// <summary>
+        /// ctor
+        /// </summary>
+        public ApiLevelException(int have, int want)
+            : base("Wrong API level.")
+        {
+            Have = have;
+            Want = want;
+        }
+    }
 }

Plogon/PlogonSystemDefine.cs

@@ -0,0 +1,12 @@
+namespace Plogon;
+
+/// <summary>
+/// Static values for Plogon.
+/// </summary>
+public static class PlogonSystemDefine
+{
+    /// <summary>
+    /// Current API level.
+    /// </summary>
+    public const int API_LEVEL = 9;
+}

Plogon/Program.cs

@@ -391,6 +391,16 @@ await webservices.StagePluginBuild(new WebServices.StagedPluginInfo
 
                         prLabels |= GitHubApi.PrLabel.NeedIcon;
                     }
+                    catch (BuildProcessor.ApiLevelException api)
+                    {
+                        Log.Error("Bad API level!");
+                        buildsMd.AddRow("🚦", $"{task.InternalName} [{task.Channel}]", fancyCommit,
+                            $"Wrong API level! (have: {api.Have}, need: {api.Want})");
+                        numFailed++;
+                        numNoIcon++;
+
+                        prLabels |= GitHubApi.PrLabel.VersionConflict;
+                    }
                     catch (Exception ex)
                     {
                         Log.Error(ex, "Could not build");