initial commit

src/database.js

@@ -0,0 +1,27 @@
+import fs from 'node:fs';
+import path from 'node:path';
+import { DatabaseSync } from 'node:sqlite';
+import { config } from './config.js';
+
+export function openDatabase(filename = path.join(config.dataDir, 'wegwichtel.sqlite')) {
+  const db = new DatabaseSync(filename, {
+    enableForeignKeyConstraints: true,
+    timeout: 5000
+  });
+  db.exec('PRAGMA journal_mode = WAL; PRAGMA busy_timeout = 5000;');
+  const schema = fs.readFileSync(path.join(config.projectRoot, 'database', 'schema.sql'), 'utf8');
+  db.exec(schema);
+  return db;
+}
+
+export function transaction(db, callback) {
+  db.exec('BEGIN IMMEDIATE');
+  try {
+    const result = callback();
+    db.exec('COMMIT');
+    return result;
+  } catch (error) {
+    db.exec('ROLLBACK');
+    throw error;
+  }
+}