Add a notifier for the remodder plugin

src/rider/main/kotlin/HarmonyPluginNotifier/HarmonyPluginNotifier.kt

@@ -0,0 +1,69 @@
+package RimworldDev.Rider.HarmonyPluginNotifier
+
+import com.intellij.ide.IdeBundle
+import com.intellij.ide.plugins.PluginManagerCore
+import com.intellij.ide.plugins.advertiser.PluginData
+import com.intellij.openapi.extensions.PluginId
+import com.intellij.openapi.fileEditor.FileEditor
+import com.intellij.openapi.project.Project
+import com.intellij.openapi.startup.StartupActivity
+import com.intellij.openapi.updateSettings.impl.pluginsAdvertisement.FUSEventSource
+import com.intellij.openapi.updateSettings.impl.pluginsAdvertisement.installAndEnable
+import com.intellij.openapi.vfs.VirtualFile
+import com.intellij.ui.EditorNotificationPanel
+import com.intellij.ui.EditorNotificationProvider
+import java.util.function.Function
+import javax.swing.JComponent
+import javax.swing.JLabel
+
+class HarmonyPluginNotifier : EditorNotificationProvider {
+    override fun collectNotificationData(p0: Project, p1: VirtualFile): Function<in FileEditor, out JComponent?>? {
+
+
+        return Function { editor ->
+            val descriptorsById = PluginManagerCore.buildPluginIdMap()
+            val hasPlugin = descriptorsById.containsKey(
+                PluginId.getId("com.zetrith.remodder")
+            )
+
+            apply(editor, p0)
+        }
+    }
+
+    fun apply(editor: FileEditor, project: Project): EditorNotificationPanel? {
+        if (editor.file.extension != "cs") return null
+        if (!editor.file.contentsToByteArray().toString(Charsets.UTF_8).contains(Regex("using\\s+HarmonyLib;"))) return null
+
+        lateinit var label: JLabel
+        val panel = object : EditorNotificationPanel(editor, EditorNotificationPanel.Status.Info) {
+            init {
+                label = myLabel
+            }
+        }
+
+        panel.text = IdeBundle.message("plugins.advertiser.plugins.found", "harmony")
+
+        fun createInstallActionLabel() {
+            val labelText =
+                IdeBundle.message("plugins.advertiser.action.install.plugin.name", "Remodder")
+
+            panel.createActionLabel(labelText) {
+                FUSEventSource.EDITOR.logInstallPlugins(listOf("com.zetrith.remodder"))
+                installAndEnable(project, setOf(PluginId.getId("com.zetrith.remodder")), true) {
+//                    pluginAdvertiserExtensionsState.addEnabledExtensionOrFileNameAndInvalidateCache(extensionOrFileName)
+//                    updateAllNotifications(project)
+                }
+            }
+
+            panel.createActionLabel(IdeBundle.message("plugins.advertiser.action.ignore.extension")) {
+//                FUSEventSource.EDITOR.logIgnoreExtension(project)
+//                pluginAdvertiserExtensionsState.ignoreExtensionOrFileNameAndInvalidateCache(extensionOrFileName)
+//                updateAllNotifications(project)
+            }
+        }
+
+        createInstallActionLabel()
+
+        return panel
+    }
+}

src/rider/main/resources/META-INF/plugin.xml

@@ -35,6 +35,9 @@ in your mods!</p>
     <backend.markup.adapterFactory language="XML" implementationClass="com.jetbrains.rider.daemon.RiderCacheAwareMarkupAdapterFactory" />
 
     <spellchecker.bundledDictionaryProvider implementation="RimworldDev.Rider.spellchecker.DictionaryProvider" />
+
+    <editorNotificationProvider
+            implementation="RimworldDev.Rider.HarmonyPluginNotifier.HarmonyPluginNotifier"/>
   </extensions>
 
 </idea-plugin>