fix: file watcher disposable by making it project-level service

Author: carlrobertoh

src/main/kotlin/ee/carlrobert/codegpt/CodeGPTProjectActivity.kt

@@ -3,9 +3,9 @@ package ee.carlrobert.codegpt
 import com.intellij.notification.NotificationAction
 import com.intellij.notification.NotificationType
 import com.intellij.openapi.application.ApplicationManager
+import com.intellij.openapi.components.service
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.startup.ProjectActivity
-import com.intellij.openapi.util.Disposer
 import ee.carlrobert.codegpt.actions.editor.EditorActionsUtil
 import ee.carlrobert.codegpt.completions.you.YouUserManager
 import ee.carlrobert.codegpt.completions.you.auth.AuthenticationHandler
@@ -34,14 +34,12 @@ class CodeGPTProjectActivity : ProjectActivity {
         if (!ApplicationManager.getApplication().isUnitTestMode
             && ConfigurationSettings.getCurrentState().isCheckForNewScreenshots
         ) {
-            val pathToWatch = Paths.get(System.getProperty("user.home"), "Desktop")
-            val fileWatcher = FileWatcher(pathToWatch)
-            fileWatcher.watch {
-                if (listOf("jpg", "jpeg", "png").contains(it.extension)) {
-                    showImageAttachmentNotification(project, it.absolutePath)
+            project.service<FileWatcher>()
+                .watch(Paths.get(System.getProperty("user.home"), "Desktop").toFile()) {
+                    if (listOf("jpg", "jpeg", "png").contains(it.extension)) {
+                        showImageAttachmentNotification(project, it.absolutePath)
+                    }
                 }
-            }
-            Disposer.register(project, fileWatcher)
         }
     }
 

src/main/kotlin/ee/carlrobert/codegpt/FileWatcher.kt

@@ -1,29 +1,29 @@
 package ee.carlrobert.codegpt
 
 import com.intellij.openapi.Disposable
+import com.intellij.openapi.components.Service
 import org.apache.commons.io.monitor.FileAlterationListenerAdaptor
 import org.apache.commons.io.monitor.FileAlterationMonitor
 import org.apache.commons.io.monitor.FileAlterationObserver
 import java.io.File
-import java.nio.file.Path
 
-class FileWatcher(private val pathToWatch: Path) : Disposable {
+@Service(Service.Level.PROJECT)
+class FileWatcher : Disposable {
 
-    private val fileMonitor =
-        FileAlterationMonitor(500, FileAlterationObserver(pathToWatch.toFile()))
+    private var fileMonitor: FileAlterationMonitor? = null
 
-    fun watch(onFileCreated: (File) -> Unit) {
-        val observer = FileAlterationObserver(pathToWatch.toFile())
+    fun watch(pathToWatch: File, onFileCreated: (File) -> Unit) {
+        val observer = FileAlterationObserver(pathToWatch)
         observer.addListener(object : FileAlterationListenerAdaptor() {
             override fun onFileCreate(file: File) {
                 onFileCreated(file)
             }
         })
-        fileMonitor.addObserver(observer)
-        fileMonitor.start()
+        fileMonitor = FileAlterationMonitor(500, observer)
+        fileMonitor?.start()
     }
 
     override fun dispose() {
-        fileMonitor.stop()
+        fileMonitor?.stop()
     }
 }