<?php
$dbPath = __DIR__ . '/../dev_panel.db';

function getDb() {
  static $pdo = null;
  global $dbPath;

  if ($pdo === null) {
    $pdo = new PDO('sqlite:' . $dbPath);
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
  }

  return $pdo;
}

function initDb() {
  $db = getDb();
  $db->exec('
    CREATE TABLE IF NOT EXISTS users (
      id INTEGER PRIMARY KEY AUTOINCREMENT,
      username TEXT NOT NULL UNIQUE,
      password_hash TEXT NOT NULL,
      role TEXT NOT NULL CHECK (role IN ("admin","dev"))
    );
  ');

  $db->exec('
    CREATE TABLE IF NOT EXISTS sites (
      id INTEGER PRIMARY KEY AUTOINCREMENT,
      domain TEXT NOT NULL UNIQUE,
      owner_id INTEGER,
      created_at TEXT NOT NULL,
      FOREIGN KEY (owner_id) REFERENCES users(id) ON DELETE SET NULL
    );
  ');

  // Seed initial admin if no users exist
  $count = (int) $db->query('SELECT COUNT(*) FROM users')->fetchColumn();
  if ($count === 0) {
    $hash = password_hash('change-me', PASSWORD_DEFAULT);
    $stmt = $db->prepare('INSERT INTO users (username, password_hash, role) VALUES (?, ?, ?)');
    $stmt->execute(['admin', $hash, 'admin']);
    return ['adminCreated' => true, 'username' => 'admin', 'password' => 'change-me'];
  }

  return ['adminCreated' => false];
}