volume panel; copilot instructions

electron/main.js

@@ -8,6 +8,17 @@ let pythonBackend = null;
 const isDev = !app.isPackaged;
 const BACKEND_PORT = 8642;
 
+function getProjectDirectory() {
+  const fs = require('fs');
+  // Keep project files alongside the TalkEdit workspace in development.
+  // electron/main.js lives under <repo>/electron, so repo root is ../
+  const projectsDir = path.join(__dirname, '..', 'Projects');
+  if (!fs.existsSync(projectsDir)) {
+    fs.mkdirSync(projectsDir, { recursive: true });
+  }
+  return projectsDir;
+}
+
 function createWindow() {
   mainWindow = new BrowserWindow({
     width: 1400,
@@ -92,7 +103,9 @@ ipcMain.handle('dialog:saveFile', async (_event, options) => {
 });
 
 ipcMain.handle('dialog:openProject', async () => {
+  const projectDir = getProjectDirectory();
   const result = await dialog.showOpenDialog(mainWindow, {
+    defaultPath: projectDir,
     properties: ['openFile'],
     filters: [
       { name: 'AI Video Editor Project', extensions: ['aive'] },
@@ -101,6 +114,18 @@ ipcMain.handle('dialog:openProject', async () => {
   return result.canceled ? null : result.filePaths[0];
 });
 
+ipcMain.handle('dialog:saveProject', async (_event, options) => {
+  const projectDir = getProjectDirectory();
+  const result = await dialog.showSaveDialog(mainWindow, {
+    defaultPath: path.join(projectDir, 'project.aive'),
+    filters: [
+      { name: 'AI Video Editor Project', extensions: ['aive'] },
+    ],
+    ...options,
+  });
+  return result.canceled ? null : result.filePath;
+});
+
 ipcMain.handle('safe-storage:encrypt', (_event, data) => {
   if (safeStorage.isEncryptionAvailable()) {
     return safeStorage.encryptString(data).toString('base64');
@@ -119,6 +144,48 @@ ipcMain.handle('get-backend-url', () => {
   return `http://localhost:${BACKEND_PORT}`;
 });
 
+ipcMain.handle('backend:ensureModel', async (_event, modelName) => {
+  // Python backend downloads models lazily during transcription.
+  // Keep this IPC for compatibility with existing renderer flow.
+  return modelName;
+});
+
+ipcMain.handle('backend:transcribe', async (_event, payload) => {
+  const filePath = payload?.filePath;
+  const modelName = payload?.modelName || 'base';
+  const language = payload?.language;
+
+  if (!filePath) {
+    throw new Error('Missing file path for transcription');
+  }
+
+  const res = await fetch(`http://127.0.0.1:${BACKEND_PORT}/transcribe`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({
+      file_path: filePath,
+      model: modelName,
+      language,
+      use_gpu: true,
+      use_cache: true,
+      diarize: false,
+    }),
+  });
+
+  if (!res.ok) {
+    let detail = `${res.status} ${res.statusText}`;
+    try {
+      const body = await res.json();
+      if (body?.detail) detail = `${detail}: ${body.detail}`;
+    } catch (_err) {
+      // ignore JSON parse errors for non-JSON responses
+    }
+    throw new Error(`Transcription failed: ${detail}`);
+  }
+
+  return await res.json();
+});
+
 ipcMain.handle('fs:readFile', async (_event, filePath) => {
   const fs = require('fs');
   return fs.readFileSync(filePath, 'utf-8');