Add in-app uninstaller in Settings (Danger Zone)

- New 'Danger Zone' section at the bottom of Settings page showing:
  - Size breakdown: ML venv, app config/settings, generated content
  - Checkbox: "Keep generated content" (checked by default)
  - Red 'Uninstall AutoNote' button

- main.js: getDirSizeMB/getDirSizeBytes helpers + rmRecursive
  - uninstall:sizes IPC → returns venv/data/content sizes in MB
  - uninstall:run IPC  → deletes venv, DATA_DIR, optionally OUTPUT_DIR

- preload.js: exposes getUninstallSizes() and runUninstall(keepContent)

- After deletion the app closes and shows platform-specific guidance:
  Windows → "Go to Apps → AutoNote → Uninstall"
  Linux   → "Delete the AutoNote AppImage file"

Author: nodeeeeee

electron/main.js

@@ -561,6 +561,41 @@ async function runInstaller(basePython, sendLog, sendDone) {
   sendDone({ success: true });
 }
 
+// ── Uninstall helpers ─────────────────────────────────────────────────────────
+function getDirSizeMB(dirPath, excludeDirs = []) {
+  let bytes = 0;
+  try {
+    const entries = fs.readdirSync(dirPath, { withFileTypes: true });
+    for (const e of entries) {
+      if (excludeDirs.includes(e.name)) continue;
+      const full = path.join(dirPath, e.name);
+      if (e.isDirectory()) {
+        bytes += getDirSizeBytes(full);
+      } else {
+        try { bytes += fs.statSync(full).size; } catch {}
+      }
+    }
+  } catch {}
+  return Math.round(bytes / (1024 * 1024));
+}
+
+function getDirSizeBytes(dirPath) {
+  let bytes = 0;
+  try {
+    const entries = fs.readdirSync(dirPath, { withFileTypes: true });
+    for (const e of entries) {
+      const full = path.join(dirPath, e.name);
+      if (e.isDirectory()) bytes += getDirSizeBytes(full);
+      else try { bytes += fs.statSync(full).size; } catch {}
+    }
+  } catch {}
+  return bytes;
+}
+
+function rmRecursive(dirPath) {
+  fs.rmSync(dirPath, { recursive: true, force: true });
+}
+
 // ── IPC handlers ──────────────────────────────────────────────────────────────
 function registerIpc() {
   ipcMain.handle('config:get',      ()       => loadConfig());
@@ -606,6 +641,41 @@ function registerIpc() {
   ipcMain.handle('path:outputDir',  ()       => getOutputDir());
   ipcMain.handle('path:dataDir',    ()       => DATA_DIR);
 
+  // ── Uninstaller ──────────────────────────────────────────────────────────
+  ipcMain.handle('uninstall:sizes', async () => {
+    const venvDir    = path.join(DATA_DIR, 'venv');
+    const outputDir  = getOutputDir();
+    return {
+      venv:    getDirSizeMB(venvDir),
+      data:    getDirSizeMB(DATA_DIR, ['venv']),   // config/scripts/manifest, excl venv
+      content: outputDir !== DATA_DIR ? getDirSizeMB(outputDir) : null,
+      outputDir,
+    };
+  });
+
+  ipcMain.handle('uninstall:run', async (_, { keepContent }) => {
+    try {
+      // 1. Delete ML venv
+      const venvDir = path.join(DATA_DIR, 'venv');
+      if (fs.existsSync(venvDir)) rmRecursive(venvDir);
+
+      // 2. Optionally delete generated content (OUTPUT_DIR if separate from DATA_DIR)
+      if (!keepContent) {
+        const outputDir = getOutputDir();
+        if (outputDir && outputDir !== DATA_DIR && fs.existsSync(outputDir)) {
+          rmRecursive(outputDir);
+        }
+      }
+
+      // 3. Delete the rest of DATA_DIR (config, scripts, manifest, api keys…)
+      if (fs.existsSync(DATA_DIR)) rmRecursive(DATA_DIR);
+
+      return { ok: true };
+    } catch (err) {
+      return { ok: false, error: err.message };
+    }
+  });
+
   ipcMain.handle('dialog:openDir', async () => {
     const result = await dialog.showOpenDialog(mainWindow, {
       properties: ['openDirectory'],

electron/package.json

@@ -1,6 +1,6 @@
 {
   "name": "auto-note",
-  "version": "0.8.7",
+  "version": "0.8.8",
   "description": "AutoNote — lecture notes generator from Canvas recordings",
   "main": "main.js",
   "scripts": {

electron/preload.js

@@ -52,4 +52,8 @@ contextBridge.exposeInMainWorld('api', {
   openDirDialog:  ()     => ipcRenderer.invoke('dialog:openDir'),
   getOutputDir:   ()     => ipcRenderer.invoke('path:outputDir'),
   getDataDir:     ()     => ipcRenderer.invoke('path:dataDir'),
+
+  // ── Uninstaller ───────────────────────────────────────────────────────────
+  getUninstallSizes: ()              => ipcRenderer.invoke('uninstall:sizes'),
+  runUninstall:      (keepContent)   => ipcRenderer.invoke('uninstall:run', { keepContent }),
 });

electron/renderer/app.js

@@ -678,6 +678,29 @@ function buildSettings() {
       <button class="btn-secondary" id="settings-refresh-btn">${I.refresh} Refresh Courses</button>
       <span id="settings-refresh-status" style="font-size:11px;color:var(--c-white-60)"></span>
     </div>
+    ${buildUninstallSection()}
+  `;
+}
+
+function buildUninstallSection() {
+  return `
+    <div style="margin-top:24px;padding:16px;border:1px solid var(--c-red,#e53935);border-radius:8px;background:rgba(229,57,53,0.06)">
+      <div style="font-weight:600;font-size:14px;color:var(--c-red,#e53935);margin-bottom:6px">Danger Zone — Uninstall AutoNote</div>
+      <div style="font-size:12px;color:var(--c-white-60);margin-bottom:12px">
+        Permanently removes the ML environment and all app settings.
+        The app binary itself must be deleted separately after uninstalling.
+      </div>
+      <div id="uninstall-sizes" style="font-size:12px;color:var(--c-white-60);margin-bottom:12px;line-height:1.8">
+        Calculating sizes…
+      </div>
+      <label style="display:flex;align-items:center;gap:8px;font-size:13px;margin-bottom:12px;cursor:pointer">
+        <input type="checkbox" id="uninstall-keep-content" checked>
+        Keep generated content (notes, captions, alignment, videos, materials)
+      </label>
+      <button id="btn-uninstall" style="background:var(--c-red,#e53935);color:#fff;border:none;padding:8px 18px;border-radius:6px;font-size:13px;cursor:pointer;font-weight:600">
+        Uninstall AutoNote
+      </button>
+    </div>
   `;
 }
 
@@ -1216,6 +1239,62 @@ async function attachPageHandlers() {
       refreshCourses(true);
     });
 
+    // Uninstall sizes
+    (async () => {
+      const el = document.getElementById('uninstall-sizes');
+      if (!el) return;
+      try {
+        const s = await window.api.getUninstallSizes();
+        const fmt = mb => mb >= 1024 ? `${(mb/1024).toFixed(1)} GB` : `${mb} MB`;
+        let html = `<b>Will be deleted:</b><br>`;
+        html += `&nbsp;&nbsp;• ML Environment: <b>${fmt(s.venv)}</b><br>`;
+        html += `&nbsp;&nbsp;• App settings &amp; config: <b>${fmt(s.data)}</b><br>`;
+        if (s.content !== null) {
+          html += `<br><b>Generated content</b> (kept unless unchecked):<br>`;
+          html += `&nbsp;&nbsp;• Output directory (${s.outputDir}): <b>${fmt(s.content)}</b>`;
+        } else {
+          html += `<br><span style="color:var(--c-white-45)">Generated content is inside the app data dir and will be removed with it.</span>`;
+        }
+        el.innerHTML = html;
+      } catch { el.textContent = 'Could not calculate sizes.'; }
+    })();
+
+    // Uninstall button
+    document.getElementById('btn-uninstall')?.addEventListener('click', async () => {
+      const keepContent = document.getElementById('uninstall-keep-content')?.checked ?? true;
+      const contentLine = keepContent
+        ? 'Generated notes, captions, and videos will be kept.'
+        : 'Generated notes, captions, and videos will also be DELETED.';
+      const confirmed = confirm(
+        `Are you sure you want to uninstall AutoNote?\n\n` +
+        `This will delete:\n` +
+        `  • The ML environment (~/.auto_note/venv)\n` +
+        `  • All app settings and credentials\n\n` +
+        `${contentLine}\n\n` +
+        `After uninstalling, please delete the AutoNote app binary/installer manually.`
+      );
+      if (!confirmed) return;
+
+      const btn = document.getElementById('btn-uninstall');
+      btn.disabled = true;
+      btn.textContent = 'Uninstalling…';
+
+      const result = await window.api.runUninstall(keepContent);
+      if (result.ok) {
+        alert(
+          'AutoNote data has been removed.\n\n' +
+          (process.platform === 'win32'
+            ? 'To finish uninstalling, go to Windows Settings → Apps → AutoNote → Uninstall.'
+            : 'To finish uninstalling, delete the AutoNote AppImage file.')
+        );
+        window.close();
+      } else {
+        btn.disabled = false;
+        btn.textContent = 'Uninstall AutoNote';
+        alert(`Uninstall failed: ${result.error}`);
+      }
+    });
+
     // Venv install / reinstall
     const startInstall = async () => {
       const logEl   = document.getElementById('env-log');