<?php
require_once 'config.php';

try {
    // 1. Connect without a database selected
    $pdo_admin = new PDO('mysql:host='.DB_HOST.';charset=utf8mb4', DB_USER, DB_PASS, [
      PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
    ]);

    // 2. Create the database if it doesn't exist
    $pdo_admin->exec("CREATE DATABASE IF NOT EXISTS ".DB_NAME);
    echo "Database '" . DB_NAME . "' created or already exists.\n";

    // 3. Now, connect to the specific database and create the table
    $pdo = db();
    $sql = "
    CREATE TABLE IF NOT EXISTS users (
        id INT AUTO_INCREMENT PRIMARY KEY,
        display_name VARCHAR(50) NOT NULL,
        email VARCHAR(100) NOT NULL UNIQUE,
        password_hash VARCHAR(255) NOT NULL,
        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
    );";
    $pdo->exec($sql);
    echo "Table 'users' created successfully (if it didn\'t exist).\n";

    // 4. Run migrations
    $migration_files = glob(__DIR__ . '/migrations/*.php');
    foreach ($migration_files as $file) {
        require_once $file;
        echo "Ran migration: $file\n";
    }

    // 5. Seed the users table if it's empty
    $stmt = $pdo->query("SELECT COUNT(*) FROM users");
    if ($stmt->fetchColumn() == 0) {
        $users = [
            ['display_name' => 'John Doe', 'email' => 'john.doe@example.com', 'password' => 'password123'],
            ['display_name' => 'Jane Smith', 'email' => 'jane.smith@example.com', 'password' => 'password123'],
            ['display_name' => 'Peter Jones', 'email' => 'peter.jones@example.com', 'password' => 'password123'],
        ];

        $sql = "INSERT INTO users (display_name, email, password_hash) VALUES (:display_name, :email, :password_hash)";
        $stmt = $pdo->prepare($sql);

        foreach ($users as $user) {
            $stmt->execute([
                ':display_name' => $user['display_name'],
                ':email' => $user['email'],
                ':password_hash' => password_hash($user['password'], PASSWORD_DEFAULT)
            ]);
        }
        echo "Seeded the users table with 3 sample users.\n";
    }


} catch (PDOException $e) {
    die("DB SETUP ERROR: " . $e->getMessage());
}