further refactor

Database/dbcontroller.ts

@@ -1,11 +1,78 @@
-import Database from 'better-sqlite3';
-import { open } from 'sqlite'
+import sqlite3 from 'sqlite3'
+import { open, Database  } from 'sqlite'
 
-// this is a top-level await 
-(async () => {
-    // open the database
-    const db = await open({
-      filename: '/tmp/database.db',
-      driver: Database
-    })
-})()
+export class DatabaseController {
+    private db: Database;
+
+    private constructor(db: Database) {
+        this.db = db;
+    }
+
+    static async create(filename = ':memory:'): Promise<DatabaseController> {
+        const db = await open({
+            filename,
+            driver: sqlite3.Database
+        });
+        let dbController = new DatabaseController(db);
+        dbController.basicSetup()
+        return dbController;
+    }
+
+    async basicSetup(){
+        await this.db.run(`CREATE TABLE IF NOT EXISTS characters (
+            id INTEGER PRIMARY KEY,
+            user_id INTEGER NOT NULL UNIQUE,
+            level INTEGER DEFAULT 0,
+            inventory TEXT,
+            questBook TEXT
+        );`)
+        await this.db.run(`CREATE TABLE IF NOT EXISTS users (
+            id INTEGER PRIMARY KEY,
+            login TEXT NOT NULL UNIQUE,
+            password TEXT NOT NULL
+        );`)
+    }
+    
+    async select<T = any>(sql: string, params?: any[]): Promise<T[]> {
+        const rows: unknown = await this.db.all(sql, params);
+        return Array.isArray(rows) ? (rows as T[]) : [];
+    }
+
+    async get<T = any>(sql: string, params?: any[]): Promise<T | undefined> {
+        return this.db.get<T>(sql, params);
+    }
+
+    async run(sql: string, params?: any[]): Promise<void> {
+        await this.db.run(sql, params);
+    }
+
+    async close(): Promise<void> {
+        await this.db.close();
+    }
+}
+
+// Usage example (you can put this in another file):
+
+// import { DatabaseController } from './db/DatabaseController';
+
+// (async () => {
+//     const db = await DatabaseController.create('mydb.sqlite3');
+  
+//     await db.run(`CREATE TABLE IF NOT EXISTS players (
+//         id INTEGER PRIMARY KEY,
+//         level INTEGER NOT NULL,
+//         inventory TEXT,
+//         questBook TEXT
+//     );`)
+//     await db.run(`CREATE TABLE IF NOT EXISTS users (
+//         id INTEGER PRIMARY KEY,
+//         login TEXT NOT NULL,
+//         password TEXT NOT NULL
+//     );`)
+
+//   await db.run('CREATE TABLE IF NOT EXISTS friends (id INTEGER PRIMARY KEY, name TEXT)');
+//   await db.run('INSERT INTO friends (name) VALUES (?)', ['Silver Fox']);
+//   const friends = await db.select('SELECT * FROM friends');
+//   console.log(friends); // [{ id: 1, name: 'Silver Fox' }]
+//   await db.close();
+// })();