feat(editor): enable file-backed Monaco models and add Problems panel; lazy-init project TypeScript IntelliSense

ts_web/elements/00group-editor/dees-editor-monaco/dees-editor-monaco.ts

@@ -40,6 +40,11 @@ export class DeesEditorMonaco extends DeesElement {
   })
   accessor language = 'typescript';
 
+  @property({
+    type: String
+  })
+  accessor filePath: string = '';
+
   @property({
     type: Object
   })
@@ -114,14 +119,35 @@ export class DeesEditorMonaco extends DeesElement {
       const isBright = domtoolsInstance.themeManager.goBrightBoolean;
       const initialTheme = isBright ? 'vs' : 'vs-dark';
 
-      const editor = ((window as any).monaco.editor as typeof monaco.editor).create(container, {
-        value: this.content,
-        language: this.language,
+      const monacoInstance = (window as any).monaco as typeof monaco;
+
+      // Create or get model with proper file URI for TypeScript IntelliSense
+      let model: monaco.editor.ITextModel | null = null;
+      if (this.filePath) {
+        const uri = monacoInstance.Uri.parse(`file://${this.filePath}`);
+        model = monacoInstance.editor.getModel(uri);
+        if (!model) {
+          model = monacoInstance.editor.createModel(this.content, this.language, uri);
+        } else {
+          model.setValue(this.content);
+        }
+      }
+
+      const editor = (monacoInstance.editor as typeof monaco.editor).create(container, {
+        model: model || undefined,
+        value: model ? undefined : this.content,
+        language: model ? undefined : this.language,
         theme: initialTheme,
         useShadowDOM: true,
         fontSize: 16,
         automaticLayout: true,
-        wordWrap: this.wordWrap
+        wordWrap: this.wordWrap,
+        hover: {
+          enabled: true,
+          delay: 300,
+          sticky: true,
+          above: false,
+        },
       });
 
       // Subscribe to theme changes
@@ -160,7 +186,35 @@ export class DeesEditorMonaco extends DeesElement {
   public async updated(changedProperties: Map<string, any>): Promise<void> {
     super.updated(changedProperties);
 
-    // Handle content changes
+    const monacoInstance = (window as any).monaco as typeof monaco;
+    if (!monacoInstance) return;
+
+    // Handle filePath changes - switch to different model
+    if (changedProperties.has('filePath') && this.filePath) {
+      const editor = await this.editorDeferred.promise;
+      const uri = monacoInstance.Uri.parse(`file://${this.filePath}`);
+      let model = monacoInstance.editor.getModel(uri);
+
+      if (!model) {
+        model = monacoInstance.editor.createModel(this.content, this.language, uri);
+      } else {
+        // Update model content if different
+        if (model.getValue() !== this.content) {
+          this.isUpdatingFromExternal = true;
+          model.setValue(this.content);
+          this.isUpdatingFromExternal = false;
+        }
+      }
+
+      // Switch editor to use this model
+      const currentModel = editor.getModel();
+      if (currentModel?.uri.toString() !== uri.toString()) {
+        editor.setModel(model);
+      }
+      return; // filePath change handles content too
+    }
+
+    // Handle content changes (when no filePath or filePath unchanged)
     if (changedProperties.has('content')) {
       const editor = await this.editorDeferred.promise;
       const currentValue = editor.getValue();
@@ -176,10 +230,7 @@ export class DeesEditorMonaco extends DeesElement {
       const editor = await this.editorDeferred.promise;
       const model = editor.getModel();
       if (model) {
-        const monacoInstance = (window as any).monaco;
-        if (monacoInstance) {
-          monacoInstance.editor.setModelLanguage(model, this.language);
-        }
+        monacoInstance.editor.setModelLanguage(model, this.language);
       }
     }
   }