Nice Work

gui/backend/db/ensure.js

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+import { ensureSchema } from './index.js';
+
+ensureSchema()
+  .then(() => {
+    console.log('✅ Datenbankschema abgeglichen.');
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('⚠️ Schema-Abgleich fehlgeschlagen:', error);
+    process.exit(1);
+  });

gui/backend/db/index.js

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+import fs from 'fs';
+import path from 'path';
+import sqlite3 from 'sqlite3';
+import { fileURLToPath } from 'url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const dbPath = path.join(__dirname, 'klangkiste.sqlite');
+const schemaPath = path.join(__dirname, 'schema.sql');
+
+export const db = new sqlite3.Database(dbPath);
+
+db.exec('PRAGMA foreign_keys = ON;');
+
+export function run(query, params = []) {
+  return new Promise((resolve, reject) => {
+    db.run(query, params, function onRun(error) {
+      if (error) {
+        reject(error);
+        return;
+      }
+      resolve({ changes: this.changes, lastID: this.lastID });
+    });
+  });
+}
+
+export function get(query, params = []) {
+  return new Promise((resolve, reject) => {
+    db.get(query, params, (error, row) => {
+      if (error) {
+        reject(error);
+        return;
+      }
+      resolve(row || null);
+    });
+  });
+}
+
+export function all(query, params = []) {
+  return new Promise((resolve, reject) => {
+    db.all(query, params, (error, rows) => {
+      if (error) {
+        reject(error);
+        return;
+      }
+      resolve(rows || []);
+    });
+  });
+}
+
+export async function ensureSchema() {
+  const schema = fs.readFileSync(schemaPath, 'utf-8');
+  return new Promise((resolve, reject) => {
+    db.exec(schema, (error) => {
+      if (error) {
+        reject(error);
+        return;
+      }
+      resolve(true);
+    });
+  });
+}

gui/backend/db/schema.sql

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+PRAGMA journal_mode = WAL;
+
+CREATE TABLE IF NOT EXISTS boxes (
+  box_id TEXT PRIMARY KEY,
+  fingerprint TEXT NOT NULL,
+  state TEXT NOT NULL,
+  first_seen INTEGER NOT NULL,
+  last_seen INTEGER NOT NULL,
+  firmware_version TEXT NOT NULL,
+  capabilities_json TEXT NOT NULL,
+  api_token TEXT,
+  last_ip TEXT,
+  api_port INTEGER,
+  setup_port INTEGER,
+  alias TEXT,
+  media_root TEXT
+);
+
+CREATE TABLE IF NOT EXISTS tags (
+  uid TEXT PRIMARY KEY,
+  label TEXT,
+  alias TEXT,
+  status TEXT NOT NULL,
+  created_at INTEGER NOT NULL,
+  written_at INTEGER,
+  media_path TEXT
+);
+
+CREATE TABLE IF NOT EXISTS box_tags (
+  box_id TEXT NOT NULL,
+  tag_uid TEXT NOT NULL,
+  media_path TEXT NOT NULL,
+  created_at INTEGER NOT NULL,
+  PRIMARY KEY (box_id, tag_uid),
+  FOREIGN KEY (box_id) REFERENCES boxes(box_id) ON DELETE CASCADE,
+  FOREIGN KEY (tag_uid) REFERENCES tags(uid) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS box_tag_blocks (
+  box_id TEXT NOT NULL,
+  tag_uid TEXT NOT NULL,
+  created_at INTEGER NOT NULL,
+  PRIMARY KEY (box_id, tag_uid),
+  FOREIGN KEY (box_id) REFERENCES boxes(box_id) ON DELETE CASCADE,
+  FOREIGN KEY (tag_uid) REFERENCES tags(uid) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS settings (
+  key TEXT PRIMARY KEY,
+  value TEXT,
+  updated_at INTEGER NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS box_jobs (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  box_id TEXT NOT NULL,
+  job_type TEXT NOT NULL,
+  payload_json TEXT NOT NULL,
+  status TEXT NOT NULL,
+  attempts INTEGER NOT NULL,
+  last_error TEXT,
+  created_at INTEGER NOT NULL,
+  updated_at INTEGER NOT NULL,
+  FOREIGN KEY (box_id) REFERENCES boxes(box_id) ON DELETE CASCADE
+);

gui/backend/package.json

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+{
+  "name": "klangkiste-backend",
+  "version": "0.1.0",
+  "type": "module",
+  "scripts": {
+    "dev": "node server.js",
+    "db:ensure": "node db/ensure.js"
+  },
+  "dependencies": {
+    "cors": "2.8.5",
+    "express": "4.19.2",
+    "music-metadata": "7.14.0",
+    "multer": "1.4.5-lts.1",
+    "sqlite3": "5.1.7"
+  }
+}