chore: merge

Author: antonreshetov

src/main/store/module/preferences.ts

@@ -1,13 +1,52 @@
 import type { PreferencesStore } from '../types'
 import { homedir, platform } from 'node:os'
+import path from 'node:path'
+import { app } from 'electron'
 import Store from 'electron-store'
+import fs from 'fs-extra'
 import { EDITOR_DEFAULTS } from '../constants'
 
 const isWin = platform() === 'win32'
 
 const storagePath = isWin ? `${homedir()}\\massCode` : `${homedir()}/massCode`
 const backupPath = isWin ? `${storagePath}\\backups` : `${storagePath}/backups`
 
+// Detect the correct default engine BEFORE the store constructor merges
+// defaults into the preferences file. Without this, existing SQLite users
+// who never had a `storage.engine` key would get 'markdown' as default,
+// making all their snippets invisible.
+function detectDefaultEngine(): 'sqlite' | 'markdown' {
+  try {
+    const prefsPath = path.join(
+      app.getPath('userData'),
+      'v2',
+      'preferences.json',
+    )
+
+    if (fs.existsSync(prefsPath)) {
+      const raw = JSON.parse(fs.readFileSync(prefsPath, 'utf8'))
+
+      // User already has an explicit engine setting — respect it
+      if (raw.storage?.engine) {
+        return raw.storage.engine
+      }
+
+      // No engine setting — check if SQLite DB exists (existing user)
+      const userStoragePath = raw.storagePath || storagePath
+      const dbPath = path.join(userStoragePath, 'massCode.db')
+
+      if (fs.existsSync(dbPath)) {
+        return 'sqlite'
+      }
+    }
+  }
+  catch {
+    // If anything goes wrong reading the file, fall through to default
+  }
+
+  return 'markdown'
+}
+
 const preferencesStore = new Store<PreferencesStore>({
   name: 'preferences',
   cwd: 'v2',
@@ -19,7 +58,7 @@ const preferencesStore = new Store<PreferencesStore>({
     theme: 'auto',
     editor: EDITOR_DEFAULTS,
     storage: {
-      engine: 'markdown',
+      engine: detectDefaultEngine(),
       vaultPath: null,
     },
     markdown: {