add db class

src/server/db.ts

@@ -0,0 +1,85 @@
+import { Database } from 'bun:sqlite';
+
+// create tables if they don't exist
+const createTableScript = `
+    -- GROUP TRABLE --
+    CREATE TABLE IF NOT EXISTS group (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        code TEXT UNIQUE NOT NULL,
+        name TEXT NOT NULL,
+        mail TEXT NOT NULL,
+        image BLOB,
+        created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+    );
+
+    -- USER TABLE --
+    CREATE TABLE IF NOT EXISTS users (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        mail TEXT NOT NULL,
+        image BLOB,
+    );
+
+    -- GROUP_MEMBER TABLE --
+    CREATE TABLE IF NOT EXISTS group_member (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        group_id INTEGER,
+        user_id INTEGER,
+        UNIQUE(email, group_id),
+        FOREIGN KEY(group_id) REFERENCES groups(id),
+        FOREIGN KEY(user_id) REFERENCES users(id)
+    );
+
+    -- BAN TABLE --
+    CREATE TABLE IF NOT EXISTS ban (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        group_id INTEGER,
+        user_id INTEGER,
+        user_id2 INTEGER,
+        FOREIGN KEY(group_id) REFERENCES groups(id),
+        FOREIGN KEY(user_id) REFERENCES users(id),
+        FOREIGN KEY(user_id2) REFERENCES users(id)
+        UNIQUE(group_id, user_id, user_id2),
+    );
+
+    -- WHISHLIST TABLE --
+    CREATE TABLE IF NOT EXISTS wishlist (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        group_id INTEGER,
+        user_id INTEGER,
+        item TEXT NOT NULL,
+        FOREIGN KEY(group_id) REFERENCES groups(id),
+        FOREIGN KEY(user_id) REFERENCES users(id)
+    );
+`;
+
+class DB {
+    private instance: Database = new Database();
+
+    private prepareDB () {
+        this.instance.run(createTableScript);
+    }
+
+    public async getGroup(id: string) {
+        const stmt = this.instance.prepare('SELECT * FROM groups WHERE code = ?');
+        const group = await stmt.get(id);
+        return group;
+    }
+
+    public createGroup(code: string): { id: number | bigint} {
+        const stmt = this.instance.prepare('INSERT INTO groups (code) VALUES (?)');
+        const changes = stmt.run(code);
+        console.log('Inserted group with ID:', changes);
+        return { id: changes.lastInsertRowid };
+    };
+
+
+    constructor(url: string = './data.sqlite') {
+        if (this.instance) {
+            this.instance = new Database(url);
+            this.prepareDB();
+            console.log('Database initialized at', url);
+        }
+    }
+}
+
+export default DB;