Feature: Integrate Discover component with improved capabilities - Added category filters and personalization features - Implemented support for multiple languages and search engines - Added preferences saving - Fixed Chinese language search issue

src/lib/db/index.ts

@@ -3,9 +3,42 @@ import Database from 'better-sqlite3';
 import * as schema from './schema';
 import path from 'path';
 
+// Create SQLite connection
 const sqlite = new Database(path.join(process.cwd(), 'data/db.sqlite'));
 const db = drizzle(sqlite, {
   schema: schema,
 });
 
+// Initialize database schema
+(function initializeDatabase() {
+  console.log('[DB] Checking database schema...');
+  
+  try {
+    // Check if userPreferences table exists
+    const tableExists = sqlite.prepare(`
+      SELECT name FROM sqlite_master 
+      WHERE type='table' AND name=?;
+    `).all('userPreferences').length > 0;
+    
+    if (!tableExists) {
+      console.log('[DB] Creating userPreferences table...');
+      sqlite.prepare(`
+        CREATE TABLE userPreferences (
+          id INTEGER PRIMARY KEY,
+          userId TEXT NOT NULL UNIQUE,
+          categories TEXT DEFAULT '[]' NOT NULL,
+          languages TEXT DEFAULT '[]' NOT NULL,
+          createdAt TEXT NOT NULL,
+          updatedAt TEXT NOT NULL
+        );
+      `).run();
+      console.log('[DB] userPreferences table created successfully.');
+    } else {
+      console.log('[DB] userPreferences table already exists.');
+    }
+  } catch (error) {
+    console.error('[DB] Error during database initialization:', error);
+  }
+})();
+
 export default db;