<?php
require_once __DIR__ . '/config.php';

try {
    $pdo = db();

    // Create users table
    $pdo->exec("
    CREATE TABLE IF NOT EXISTS `users` (
        `id` INT AUTO_INCREMENT PRIMARY KEY,
        `username` VARCHAR(255) NOT NULL UNIQUE,
        `email` VARCHAR(255) NOT NULL UNIQUE,
        `password` VARCHAR(255) NOT NULL,
        `is_admin` BOOLEAN NOT NULL DEFAULT 0,
        `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP
    ) ENGINE=INNODB;
    ");

    echo "Table 'users' created successfully or already exists.\n";

    // Create videos table
    $pdo->exec("
    CREATE TABLE IF NOT EXISTS `videos` (
        `id` INT AUTO_INCREMENT PRIMARY KEY,
        `user_id` INT,
        `title` VARCHAR(255) NOT NULL,
        `description` TEXT,
        `upload_date` DATE,
        `views` INT DEFAULT 0,
        `creator` VARCHAR(255),
        `creator_avatar` VARCHAR(255),
        `thumbnail_url` VARCHAR(255),
        `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
        FOREIGN KEY (`user_id`) REFERENCES `users`(`id`) ON DELETE SET NULL
    ) ENGINE=INNODB;
    ");

    echo "Table 'videos' created successfully or already exists.\n";

    // Insert a default admin user if one doesn't exist
    $stmt = $pdo->prepare("SELECT id FROM users WHERE username = ?");
    $stmt->execute(['admin']);
    if ($stmt->fetch()) {
        echo "Admin user already exists.\n";
    } else {
        $password_hash = password_hash('password', PASSWORD_DEFAULT);
        $stmt = $pdo->prepare("INSERT INTO users (username, email, password, is_admin) VALUES (?, ?, ?, ?)");
        $stmt->execute(['admin', 'admin@example.com', $password_hash, 1]);
        echo "Default admin user created successfully. Username: admin, Password: password\n";
    }

} catch (PDOException $e) {
    die("Database setup failed: " . $e->getMessage());
}