Umstellung auf sqlite

2026-02-11 23:22:11 +01:00
parent ea863e8b10
commit 4beafdf719
4 changed files with 379 additions and 212 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,9 @@
 .env
 data/codes.json
 data/pending-orders.json
+data/*.db
+data/*.db-wal
+data/*.db-shm
 node_modules/
 package-lock.json
 .DS_Store
--- a/db.js
+++ b/db.js
@@ -0,0 +1,358 @@
+/**
+ * SQLite database layer for UniFi Portal (replaces JSON files).
+ * DB file: data/portal.db
+ */
+
+const path = require('path');
+const fs = require('fs');
+
+const DATA_DIR = path.join(__dirname, 'data');
+const DB_PATH = path.join(DATA_DIR, 'portal.db');
+
+let db = null;
+
+function getDb() {
+  if (!db) {
+    const Database = require('better-sqlite3');
+    if (!fs.existsSync(DATA_DIR)) {
+      fs.mkdirSync(DATA_DIR, { recursive: true });
+    }
+    db = new Database(DB_PATH);
+    db.pragma('journal_mode = WAL');
+    initSchema(db);
+    migrateFromJson(db);
+  }
+  return db;
+}
+
+function initSchema(database) {
+  database.exec(`
+    CREATE TABLE IF NOT EXISTS codes (
+      code TEXT PRIMARY KEY,
+      createdAt TEXT NOT NULL,
+      expiresAt TEXT,
+      useCount INTEGER NOT NULL DEFAULT 0
+    );
+
+    CREATE TABLE IF NOT EXISTS packages (
+      id TEXT PRIMARY KEY,
+      name TEXT NOT NULL,
+      durationMinutes INTEGER NOT NULL,
+      price REAL NOT NULL,
+      currency TEXT NOT NULL,
+      active INTEGER NOT NULL DEFAULT 1,
+      sortOrder INTEGER NOT NULL DEFAULT 0
+    );
+
+    CREATE TABLE IF NOT EXISTS pending_orders (
+      orderId TEXT PRIMARY KEY,
+      guestMac TEXT NOT NULL,
+      packageId TEXT NOT NULL,
+      createdAt TEXT NOT NULL
+    );
+  `);
+}
+
+function migrateFromJson(database) {
+  const codesPath = path.join(DATA_DIR, 'codes.json');
+  const packagesPath = path.join(DATA_DIR, 'packages.json');
+  const ordersPath = path.join(DATA_DIR, 'pending-orders.json');
+
+  const hasCodes = database.prepare('SELECT 1 FROM codes LIMIT 1').get();
+  if (!hasCodes && fs.existsSync(codesPath)) {
+    try {
+      const codes = JSON.parse(fs.readFileSync(codesPath, 'utf8'));
+      const insert = database.prepare(
+        'INSERT OR IGNORE INTO codes (code, createdAt, expiresAt, useCount) VALUES (?, ?, ?, ?)'
+      );
+      for (const c of codes) {
+        insert.run(
+          c.code,
+          c.createdAt || new Date().toISOString(),
+          c.expiresAt || null,
+          c.useCount ?? 0
+        );
+      }
+      console.log(`Migrated ${codes.length} codes from JSON to SQLite`);
+    } catch (err) {
+      console.error('Migration codes.json:', err.message);
+    }
+  }
+
+  const hasPackages = database.prepare('SELECT 1 FROM packages LIMIT 1').get();
+  if (!hasPackages && fs.existsSync(packagesPath)) {
+    try {
+      const packages = JSON.parse(fs.readFileSync(packagesPath, 'utf8'));
+      const insert = database.prepare(
+        'INSERT OR IGNORE INTO packages (id, name, durationMinutes, price, currency, active, sortOrder) VALUES (?, ?, ?, ?, ?, ?, ?)'
+      );
+      for (const p of packages) {
+        insert.run(
+          p.id,
+          p.name,
+          p.durationMinutes ?? 0,
+          p.price ?? 0,
+          p.currency || 'EUR',
+          p.active !== false ? 1 : 0,
+          p.sortOrder ?? 0
+        );
+      }
+      console.log(`Migrated ${packages.length} packages from JSON to SQLite`);
+    } catch (err) {
+      console.error('Migration packages.json:', err.message);
+    }
+  }
+
+  const hasOrders = database.prepare('SELECT 1 FROM pending_orders LIMIT 1').get();
+  if (!hasOrders && fs.existsSync(ordersPath)) {
+    try {
+      const orders = JSON.parse(fs.readFileSync(ordersPath, 'utf8'));
+      const insert = database.prepare(
+        'INSERT OR IGNORE INTO pending_orders (orderId, guestMac, packageId, createdAt) VALUES (?, ?, ?, ?)'
+      );
+      for (const [orderId, o] of Object.entries(orders)) {
+        insert.run(orderId, o.guestMac, o.packageId, o.createdAt || new Date().toISOString());
+      }
+      const count = Object.keys(orders).length;
+      if (count) console.log(`Migrated ${count} pending orders from JSON to SQLite`);
+    } catch (err) {
+      console.error('Migration pending-orders.json:', err.message);
+    }
+  }
+}
+
+// --- Codes ---
+
+function loadCodes() {
+  const rows = getDb().prepare('SELECT code, createdAt, expiresAt, useCount FROM codes').all();
+  return rows.map((r) => ({
+    code: r.code,
+    createdAt: r.createdAt,
+    expiresAt: r.expiresAt,
+    useCount: r.useCount ?? 0
+  }));
+}
+
+function saveCodes(codes) {
+  const database = getDb();
+  database.prepare('DELETE FROM codes').run();
+  const insert = database.prepare(
+    'INSERT INTO codes (code, createdAt, expiresAt, useCount) VALUES (?, ?, ?, ?)'
+  );
+  for (const c of codes) {
+    insert.run(c.code, c.createdAt, c.expiresAt ?? null, c.useCount ?? 0);
+  }
+}
+
+function findAndValidateCode(codeInput) {
+  const normalized = String(codeInput || '').trim().toUpperCase();
+  if (!normalized) return null;
+  const row = getDb()
+    .prepare('SELECT code, createdAt, expiresAt, useCount FROM codes WHERE code = ?')
+    .get(normalized);
+  if (!row) return null;
+  if (row.expiresAt && new Date(row.expiresAt) < new Date()) return null;
+  return {
+    code: row.code,
+    createdAt: row.createdAt,
+    expiresAt: row.expiresAt,
+    useCount: row.useCount ?? 0
+  };
+}
+
+function incrementCodeUseCount(codeInput) {
+  const normalized = String(codeInput || '').trim().toUpperCase();
+  getDb().prepare('UPDATE codes SET useCount = useCount + 1 WHERE code = ?').run(normalized);
+}
+
+const CODE_CHARS = '23456789ABCDEFGHJKLMNPQRSTUVWXYZ';
+
+function generateCode() {
+  let code = '';
+  for (let i = 0; i < 8; i++) {
+    code += CODE_CHARS.charAt(Math.floor(Math.random() * CODE_CHARS.length));
+  }
+  return code;
+}
+
+function addCode(expiresInMinutes) {
+  const code = generateCode();
+  const now = new Date().toISOString();
+  const expiresAt = expiresInMinutes
+    ? new Date(Date.now() + expiresInMinutes * 60 * 1000).toISOString()
+    : null;
+  getDb()
+    .prepare('INSERT INTO codes (code, createdAt, expiresAt, useCount) VALUES (?, ?, ?, 0)')
+    .run(code, now, expiresAt);
+  return { code, createdAt: now, expiresAt, useCount: 0 };
+}
+
+function deleteCode(codeInput) {
+  const normalized = String(codeInput || '').trim().toUpperCase();
+  const result = getDb().prepare('DELETE FROM codes WHERE code = ?').run(normalized);
+  return result.changes > 0;
+}
+
+// --- Packages ---
+
+function loadPackages() {
+  const rows = getDb()
+    .prepare(
+      'SELECT id, name, durationMinutes, price, currency, active, sortOrder FROM packages'
+    )
+    .all();
+  return rows.map((r) => ({
+    id: r.id,
+    name: r.name,
+    durationMinutes: r.durationMinutes,
+    price: r.price,
+    currency: r.currency,
+    active: Boolean(r.active),
+    sortOrder: r.sortOrder ?? 0
+  }));
+}
+
+function savePackages(packages) {
+  const database = getDb();
+  database.prepare('DELETE FROM packages').run();
+  const insert = database.prepare(
+    'INSERT INTO packages (id, name, durationMinutes, price, currency, active, sortOrder) VALUES (?, ?, ?, ?, ?, ?, ?)'
+  );
+  for (const p of packages) {
+    insert.run(
+      p.id,
+      p.name,
+      p.durationMinutes,
+      p.price,
+      p.currency || 'EUR',
+      p.active !== false ? 1 : 0,
+      p.sortOrder ?? 0
+    );
+  }
+}
+
+function findPackageById(id) {
+  const row = getDb()
+    .prepare(
+      'SELECT id, name, durationMinutes, price, currency, active, sortOrder FROM packages WHERE id = ?'
+    )
+    .get(id);
+  if (!row) return null;
+  return {
+    id: row.id,
+    name: row.name,
+    durationMinutes: row.durationMinutes,
+    price: row.price,
+    currency: row.currency,
+    active: Boolean(row.active),
+    sortOrder: row.sortOrder ?? 0
+  };
+}
+
+function addPackage({ name, durationMinutes, price, currency, active = true }) {
+  const crypto = require('crypto');
+  const id = crypto.randomUUID();
+  const database = getDb();
+  const maxOrder = database.prepare('SELECT COALESCE(MAX(sortOrder), 0) AS m FROM packages').get();
+  const sortOrder = (maxOrder?.m ?? 0) + 1;
+  database
+    .prepare(
+      'INSERT INTO packages (id, name, durationMinutes, price, currency, active, sortOrder) VALUES (?, ?, ?, ?, ?, ?, ?)'
+    )
+    .run(
+      id,
+      String(name || '').trim(),
+      parseInt(durationMinutes, 10) || 60,
+      parseFloat(price) || 0,
+      String(currency || 'EUR').toUpperCase().slice(0, 3),
+      active ? 1 : 0,
+      sortOrder
+    );
+  return findPackageById(id);
+}
+
+function updatePackage(id, updates) {
+  const current = findPackageById(id);
+  if (!current) return null;
+  const next = {
+    ...current,
+    ...(updates.name !== undefined && { name: String(updates.name).trim() }),
+    ...(updates.durationMinutes !== undefined && {
+      durationMinutes: parseInt(updates.durationMinutes, 10) || current.durationMinutes
+    }),
+    ...(updates.price !== undefined && { price: parseFloat(updates.price) ?? current.price }),
+    ...(updates.currency !== undefined && {
+      currency: String(updates.currency).toUpperCase().slice(0, 3)
+    }),
+    ...(updates.active !== undefined && { active: Boolean(updates.active) }),
+    ...(updates.sortOrder !== undefined && { sortOrder: parseInt(updates.sortOrder, 10) })
+  };
+  getDb()
+    .prepare(
+      'UPDATE packages SET name = ?, durationMinutes = ?, price = ?, currency = ?, active = ?, sortOrder = ? WHERE id = ?'
+    )
+    .run(
+      next.name,
+      next.durationMinutes,
+      next.price,
+      next.currency,
+      next.active ? 1 : 0,
+      next.sortOrder,
+      id
+    );
+  return findPackageById(id);
+}
+
+function deletePackage(id) {
+  const result = getDb().prepare('DELETE FROM packages WHERE id = ?').run(id);
+  return result.changes > 0;
+}
+
+// --- Pending orders ---
+
+const PENDING_ORDER_TTL_MS = 30 * 60 * 1000;
+
+function addPendingOrder(orderId, { guestMac, packageId }) {
+  getDb()
+    .prepare(
+      'INSERT OR REPLACE INTO pending_orders (orderId, guestMac, packageId, createdAt) VALUES (?, ?, ?, ?)'
+    )
+    .run(orderId, guestMac, packageId, new Date().toISOString());
+}
+
+function getAndRemovePendingOrder(orderId) {
+  const row = getDb()
+    .prepare('SELECT orderId, guestMac, packageId, createdAt FROM pending_orders WHERE orderId = ?')
+    .get(orderId);
+  if (!row) return null;
+  const created = new Date(row.createdAt).getTime();
+  if (Date.now() - created > PENDING_ORDER_TTL_MS) {
+    getDb().prepare('DELETE FROM pending_orders WHERE orderId = ?').run(orderId);
+    return null;
+  }
+  getDb().prepare('DELETE FROM pending_orders WHERE orderId = ?').run(orderId);
+  return {
+    guestMac: row.guestMac,
+    packageId: row.packageId,
+    createdAt: row.createdAt
+  };
+}
+
+module.exports = {
+  getDb,
+  loadCodes,
+  saveCodes,
+  findAndValidateCode,
+  incrementCodeUseCount,
+  addCode,
+  deleteCode,
+  loadPackages,
+  savePackages,
+  findPackageById,
+  addPackage,
+  updatePackage,
+  deletePackage,
+  addPendingOrder,
+  getAndRemovePendingOrder,
+  PENDING_ORDER_TTL_MS
+};
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
  "license": "MIT",
  "dependencies": {
    "axios": "^1.6.0",
+    "better-sqlite3": "^12.6.2",
    "dotenv": "^17.2.4",
    "express": "^4.18.2",
    "express-session": "^1.17.3"
--- a/server.js
+++ b/server.js
@@ -3,211 +3,16 @@ const express = require('express');
 const axios = require('axios');
 const https = require('https');
 const path = require('path');
-const fs = require('fs');
-const crypto = require('crypto');
 const session = require('express-session');

+const db = require('./db');
+
 const app = express();
 const PORT = 80;

 // Admin Configuration
 const ADMIN_PASSWORD = process.env.ADMIN_PASSWORD || 'change-this-admin-password';

-// Code storage (data/codes.json)
-const DATA_DIR = path.join(__dirname, 'data');
-const CODES_FILE = path.join(DATA_DIR, 'codes.json');
-// 8-char alphanumeric, excludes confusing chars (0, O, 1, I, l)
-const CODE_CHARS = '23456789ABCDEFGHJKLMNPQRSTUVWXYZ';
-
-function ensureDataDir() {
-  if (!fs.existsSync(DATA_DIR)) {
-    fs.mkdirSync(DATA_DIR, { recursive: true });
-  }
-}
-
-function loadCodes() {
-  ensureDataDir();
-  if (!fs.existsSync(CODES_FILE)) {
-    return [];
-  }
-  try {
-    const data = fs.readFileSync(CODES_FILE, 'utf8');
-    return JSON.parse(data);
-  } catch (err) {
-    console.error('Error loading codes:', err);
-    return [];
-  }
-}
-
-function saveCodes(codes) {
-  ensureDataDir();
-  fs.writeFileSync(CODES_FILE, JSON.stringify(codes, null, 2), 'utf8');
-}
-
-function generateCode() {
-  let code = '';
-  for (let i = 0; i < 8; i++) {
-    code += CODE_CHARS.charAt(Math.floor(Math.random() * CODE_CHARS.length));
-  }
-  return code;
-}
-
-function findAndValidateCode(codeInput) {
-  const codes = loadCodes();
-  const normalized = String(codeInput || '').trim().toUpperCase();
-  if (!normalized) return null;
-  const entry = codes.find((c) => c.code === normalized);
-  if (!entry) return null;
-  if (entry.expiresAt && new Date(entry.expiresAt) < new Date()) {
-    return null; // expired
-  }
-  return entry;
-}
-
-function incrementCodeUseCount(codeInput) {
-  const codes = loadCodes();
-  const normalized = String(codeInput || '').trim().toUpperCase();
-  const idx = codes.findIndex((c) => c.code === normalized);
-  if (idx === -1) return;
-  codes[idx].useCount = (codes[idx].useCount || 0) + 1;
-  saveCodes(codes);
-}
-
-function addCode(expiresInMinutes) {
-  const code = generateCode();
-  const now = new Date();
-  const expiresAt = expiresInMinutes
-    ? new Date(now.getTime() + expiresInMinutes * 60 * 1000)
-    : null;
-  const entry = {
-    code,
-    createdAt: now.toISOString(),
-    expiresAt: expiresAt ? expiresAt.toISOString() : null,
-    useCount: 0
-  };
-  const codes = loadCodes();
-  codes.push(entry);
-  saveCodes(codes);
-  return entry;
-}
-
-function deleteCode(codeInput) {
-  const codes = loadCodes();
-  const normalized = String(codeInput || '').trim().toUpperCase();
-  const filtered = codes.filter((c) => c.code !== normalized);
-  if (filtered.length === codes.length) return false;
-  saveCodes(filtered);
-  return true;
-}
-
-// Packages storage (data/packages.json)
-const PACKAGES_FILE = path.join(DATA_DIR, 'packages.json');
-const PENDING_ORDERS_FILE = path.join(DATA_DIR, 'pending-orders.json');
-const PENDING_ORDER_TTL_MS = 30 * 60 * 1000; // 30 minutes
-
-function loadPackages() {
-  ensureDataDir();
-  if (!fs.existsSync(PACKAGES_FILE)) return [];
-  try {
-    return JSON.parse(fs.readFileSync(PACKAGES_FILE, 'utf8'));
-  } catch (err) {
-    console.error('Error loading packages:', err);
-    return [];
-  }
-}
-
-function savePackages(packages) {
-  ensureDataDir();
-  fs.writeFileSync(PACKAGES_FILE, JSON.stringify(packages, null, 2), 'utf8');
-}
-
-function findPackageById(id) {
-  return loadPackages().find((p) => p.id === id);
-}
-
-function addPackage({ name, durationMinutes, price, currency, active = true }) {
-  const packages = loadPackages();
-  const maxOrder = packages.reduce((m, p) => Math.max(m, p.sortOrder || 0), 0);
-  const entry = {
-    id: crypto.randomUUID(),
-    name: String(name || '').trim(),
-    durationMinutes: parseInt(durationMinutes, 10) || 60,
-    price: parseFloat(price) || 0,
-    currency: String(currency || 'EUR').toUpperCase().slice(0, 3),
-    active: Boolean(active),
-    sortOrder: maxOrder + 1
-  };
-  packages.push(entry);
-  savePackages(packages);
-  return entry;
-}
-
-function updatePackage(id, updates) {
-  const packages = loadPackages();
-  const idx = packages.findIndex((p) => p.id === id);
-  if (idx === -1) return null;
-  packages[idx] = {
-    ...packages[idx],
-    ...(updates.name !== undefined && { name: String(updates.name).trim() }),
-    ...(updates.durationMinutes !== undefined && { durationMinutes: parseInt(updates.durationMinutes, 10) || packages[idx].durationMinutes }),
-    ...(updates.price !== undefined && { price: parseFloat(updates.price) || packages[idx].price }),
-    ...(updates.currency !== undefined && { currency: String(updates.currency).toUpperCase().slice(0, 3) }),
-    ...(updates.active !== undefined && { active: Boolean(updates.active) }),
-    ...(updates.sortOrder !== undefined && { sortOrder: parseInt(updates.sortOrder, 10) })
-  };
-  savePackages(packages);
-  return packages[idx];
-}
-
-function deletePackage(id) {
-  const packages = loadPackages();
-  const filtered = packages.filter((p) => p.id !== id);
-  if (filtered.length === packages.length) return false;
-  savePackages(filtered);
-  return true;
-}
-
-function loadPendingOrders() {
-  ensureDataDir();
-  if (!fs.existsSync(PENDING_ORDERS_FILE)) return {};
-  try {
-    return JSON.parse(fs.readFileSync(PENDING_ORDERS_FILE, 'utf8'));
-  } catch (err) {
-    console.error('Error loading pending orders:', err);
-    return {};
-  }
-}
-
-function savePendingOrders(obj) {
-  ensureDataDir();
-  fs.writeFileSync(PENDING_ORDERS_FILE, JSON.stringify(obj, null, 2), 'utf8');
-}
-
-function addPendingOrder(orderId, { guestMac, packageId }) {
-  const orders = loadPendingOrders();
-  orders[orderId] = {
-    guestMac,
-    packageId,
-    createdAt: new Date().toISOString()
-  };
-  savePendingOrders(orders);
-}
-
-function getAndRemovePendingOrder(orderId) {
-  const orders = loadPendingOrders();
-  const entry = orders[orderId];
-  if (!entry) return null;
-  const created = new Date(entry.createdAt).getTime();
-  if (Date.now() - created > PENDING_ORDER_TTL_MS) {
-    delete orders[orderId];
-    savePendingOrders(orders);
-    return null;
-  }
-  delete orders[orderId];
-  savePendingOrders(orders);
-  return entry;
-}
-
 // Telegram Configuration
 const TELEGRAM_BOT_TOKEN = process.env.TELEGRAM_BOT_TOKEN;
 const TELEGRAM_CHAT_ID = process.env.TELEGRAM_CHAT_ID;
@@ -328,7 +133,7 @@ app.post('/authorize', async (req, res) => {
    });
  }

-  const codeEntry = findAndValidateCode(code);
+  const codeEntry = db.findAndValidateCode(code);
  if (!codeEntry) {
    return res.status(400).json({
      success: false,
@@ -350,7 +155,7 @@ app.post('/authorize', async (req, res) => {
    
    console.log('Authorization successful!', authorizeResponse.data);

-    incrementCodeUseCount(code);
+    db.incrementCodeUseCount(code);
    
    res.json({ 
      success: true, 
@@ -394,7 +199,7 @@ app.get('/admin/check', (req, res) => {
 });

 app.get('/admin/codes', requireAdmin, (req, res) => {
-  const codes = loadCodes();
+  const codes = db.loadCodes();
  const now = new Date();
  const filtered = codes.map((c) => ({
    ...c,
@@ -405,12 +210,12 @@ app.get('/admin/codes', requireAdmin, (req, res) => {

 app.post('/admin/codes', requireAdmin, (req, res) => {
  const { expiresInMinutes } = req.body || {};
-  const entry = addCode(expiresInMinutes != null ? Number(expiresInMinutes) : null);
+  const entry = db.addCode(expiresInMinutes != null ? Number(expiresInMinutes) : null);
  res.json({ success: true, code: entry.code, entry });
 });

 app.delete('/admin/codes/:code', requireAdmin, (req, res) => {
-  const deleted = deleteCode(req.params.code);
+  const deleted = db.deleteCode(req.params.code);
  if (deleted) {
    return res.json({ success: true });
  }
@@ -419,7 +224,7 @@ app.delete('/admin/codes/:code', requireAdmin, (req, res) => {

 // Public packages (active only)
 app.get('/api/packages', (req, res) => {
-  const packages = loadPackages()
+  const packages = db.loadPackages()
    .filter((p) => p.active)
    .sort((a, b) => (a.sortOrder || 0) - (b.sortOrder || 0))
    .map((p) => ({
@@ -434,7 +239,7 @@ app.get('/api/packages', (req, res) => {

 // Admin packages CRUD
 app.get('/admin/packages', requireAdmin, (req, res) => {
-  const packages = loadPackages().sort((a, b) => (a.sortOrder || 0) - (b.sortOrder || 0));
+  const packages = db.loadPackages().sort((a, b) => (a.sortOrder || 0) - (b.sortOrder || 0));
  res.json({ packages });
 });

@@ -443,18 +248,18 @@ app.post('/admin/packages', requireAdmin, (req, res) => {
  if (!name || !durationMinutes || price == null) {
    return res.status(400).json({ success: false, error: 'Missing required fields: name, durationMinutes, price' });
  }
-  const entry = addPackage({ name, durationMinutes, price, currency: currency || 'EUR', active });
+  const entry = db.addPackage({ name, durationMinutes, price, currency: currency || 'EUR', active });
  res.json({ success: true, package: entry });
 });

 app.put('/admin/packages/:id', requireAdmin, (req, res) => {
-  const pkg = updatePackage(req.params.id, req.body || {});
+  const pkg = db.updatePackage(req.params.id, req.body || {});
  if (!pkg) return res.status(404).json({ success: false, error: 'Package not found' });
  res.json({ success: true, package: pkg });
 });

 app.delete('/admin/packages/:id', requireAdmin, (req, res) => {
-  const deleted = deletePackage(req.params.id);
+  const deleted = db.deletePackage(req.params.id);
  if (!deleted) return res.status(404).json({ success: false, error: 'Package not found' });
  res.json({ success: true });
 });
@@ -466,7 +271,7 @@ app.post('/api/paypal/create-order', async (req, res) => {
    return res.status(400).json({ success: false, error: 'Session expired. Please reconnect to WiFi.' });
  }
  const { packageId } = req.body || {};
-  const pkg = findPackageById(packageId);
+  const pkg = db.findPackageById(packageId);
  if (!pkg || !pkg.active) {
    return res.status(400).json({ success: false, error: 'Invalid package' });
  }
@@ -497,7 +302,7 @@ app.post('/api/paypal/create-order', async (req, res) => {
      }
    );
    const orderId = resPayPal.data.id;
-    addPendingOrder(orderId, {
+    db.addPendingOrder(orderId, {
      guestMac: req.session.guestMac,
      packageId: pkg.id
    });
@@ -523,12 +328,12 @@ app.post('/api/paypal/capture-order', async (req, res) => {
    return res.status(400).json({ success: false, error: 'Missing orderId' });
  }

-  const pending = getAndRemovePendingOrder(orderId);
+  const pending = db.getAndRemovePendingOrder(orderId);
  if (!pending || pending.guestMac !== guestMac) {
    return res.status(400).json({ success: false, error: 'Invalid or expired order' });
  }

-  const pkg = findPackageById(pending.packageId);
+  const pkg = db.findPackageById(pending.packageId);
  if (!pkg) {
    return res.status(400).json({ success: false, error: 'Package no longer available' });
  }
@@ -550,7 +355,7 @@ app.post('/api/paypal/capture-order', async (req, res) => {
      return res.status(400).json({ success: false, error: 'Payment not completed' });
    }

-    addCode(pkg.durationMinutes); // record for audit
+    db.addCode(pkg.durationMinutes); // record for audit

    const amount = `${Number(pkg.price).toFixed(2)} ${pkg.currency}`;
    const durationText = pkg.durationMinutes >= 1440