Updated some interfaces to be more future proof

src/lib/db/adapter.ts

@@ -0,0 +1,102 @@
+/**
+ * Database adapter for SQLite
+ * For the self-hosted version of Gitea Mirror
+ */
+
+import { drizzle as drizzleSqlite } from 'drizzle-orm/bun-sqlite';
+import { Database } from 'bun:sqlite';
+import * as schema from './schema';
+
+export type DatabaseClient = ReturnType<typeof createDatabase>;
+
+/**
+ * Create SQLite database connection
+ */
+export function createDatabase() {
+  const dbPath = process.env.DATABASE_PATH || './data/gitea-mirror.db';
+  
+  // Ensure directory exists
+  const fs = require('fs');
+  const path = require('path');
+  const dir = path.dirname(dbPath);
+  if (!fs.existsSync(dir)) {
+    fs.mkdirSync(dir, { recursive: true });
+  }
+  
+  // Create SQLite connection
+  const sqlite = new Database(dbPath);
+  
+  // Enable foreign keys and WAL mode for better performance
+  sqlite.exec('PRAGMA foreign_keys = ON');
+  sqlite.exec('PRAGMA journal_mode = WAL');
+  sqlite.exec('PRAGMA synchronous = NORMAL');
+  sqlite.exec('PRAGMA cache_size = -2000'); // 2MB cache
+  sqlite.exec('PRAGMA temp_store = MEMORY');
+  
+  // Create Drizzle instance with SQLite
+  const db = drizzleSqlite(sqlite, { 
+    schema,
+    logger: process.env.NODE_ENV === 'development',
+  });
+  
+  return {
+    db,
+    client: sqlite,
+    type: 'sqlite' as const,
+    
+    // Helper methods
+    async close() {
+      sqlite.close();
+    },
+    
+    async healthCheck() {
+      try {
+        sqlite.query('SELECT 1').get();
+        return true;
+      } catch {
+        return false;
+      }
+    },
+    
+    async transaction<T>(fn: (tx: any) => Promise<T>) {
+      return db.transaction(fn);
+    },
+  };
+}
+
+// Create singleton instance
+let dbInstance: DatabaseClient | null = null;
+
+/**
+ * Get database instance (singleton)
+ */
+export function getDatabase(): DatabaseClient {
+  if (!dbInstance) {
+    dbInstance = createDatabase();
+  }
+  return dbInstance;
+}
+
+/**
+ * Close database connection
+ */
+export async function closeDatabase() {
+  if (dbInstance) {
+    await dbInstance.close();
+    dbInstance = null;
+  }
+}
+
+// Export convenience references
+export const { db, client, type: dbType } = getDatabase();
+
+// Re-export schema for convenience
+export * from './schema';
+
+/**
+ * Database migration utilities
+ */
+export async function runMigrations() {
+  const { migrate } = await import('drizzle-orm/bun-sqlite/migrator');
+  await migrate(db, { migrationsFolder: './drizzle' });
+}