initial state: muzick music player + recommendation engine

backend/scripts/seed.ts

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+import { Client as PgClient } from 'pg';
+
+async function seed() {
+  const pgClient = new PgClient({
+    connectionString: process.env.DATABASE_URL,
+  });
+
+  await pgClient.connect();
+
+  console.log('Seeding database...');
+
+  try {
+    // Clear existing data
+    await pgClient.query('TRUNCATE artists, albums, tracks, genre, track_genre, dislikes, recommendation_batch, recommendation_batch_track, track_audio_features, track_lyrics CASCADE');
+
+    // Insert an artist
+    const artistRes = await pgClient.query(
+      'INSERT INTO artists (name, mbid) VALUES ($1, $2) RETURNING id',
+      ['Daft Punk', '5742e173-e031-4848-90a4-977799791608']
+    );
+    const artistId = artistRes.rows[0].id;
+
+    // Insert an album
+    const albumRes = await pgClient.query(
+      'INSERT INTO albums (artist_id, title, year) VALUES ($1, $2, $3) RETURNING id',
+      [artistId, 'Discovery', 2001]
+    );
+    const albumId = albumRes.rows[0].id;
+
+    // Insert tracks
+    await pgClient.query(
+      `INSERT INTO tracks (path, hash, title, artist, album_id, duration, state, source_type)
+       VALUES ($1, $2, $3, $4, $5, $6, $7, $8)`,
+      ['/music/daft_punk/discovery/one_more_time.mp3', 'hash1', 'One More Time', 'Daft Punk', albumId, 320, 'LIBRARY', 'MANUAL']
+    );
+
+    await pgClient.query(
+      `INSERT INTO tracks (path, hash, title, artist, album_id, duration, state, source_type)
+       VALUES ($1, $2, $3, $4, $5, $6, $7, $8)`,
+      ['/music/daft_punk/discovery/harder_better_faster_stronger.mp3', 'hash2', 'Harder, Better, Faster, Stronger', 'Daft Punk', albumId, 224, 'LIBRARY', 'MANUAL']
+    );
+
+    console.log('Seeding successful!');
+  } catch (err) {
+    console.error('Seeding failed:', err);
+    process.exit(1);
+  } finally {
+    await pgClient.end();
+  }
+}
+
+seed();

backend/scripts/setup-db.sh

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+#!/bin/bash
+# Initialize the database schema
+psql "$DATABASE_URL" -f src/db/schema.sql
+
+
+echo "Database initialized successfully."