-- Create database if you haven't already
-- CREATE DATABASE IF NOT EXISTS `assignment_notifier` DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-- USE `assignment_notifier`;

-- --------------------------------------------------------
-- Table structure for table `users`
-- --------------------------------------------------------
CREATE TABLE IF NOT EXISTS `users` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(50) NOT NULL,
  `password` varchar(255) NOT NULL,
  `role` enum('admin','student') NOT NULL DEFAULT 'student',
  `name` varchar(100) NOT NULL,
  `line_token` varchar(100) DEFAULT NULL,
  `telegram_chat_id` varchar(100) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `username` (`username`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- Insert default admin and student
INSERT INTO `users` (`username`, `password`, `role`, `name`) VALUES
('admin', '$2y$10$92IXUNpkjO0rOQ5byMi.Ye4oKoEa3Ro9llC/.og/at2.uheWG/igi', 'admin', 'Administrator'), -- Password is 'password'
('student1', '$2y$10$92IXUNpkjO0rOQ5byMi.Ye4oKoEa3Ro9llC/.og/at2.uheWG/igi', 'student', 'Student One') -- Password is 'password'
ON DUPLICATE KEY UPDATE id=id;

-- --------------------------------------------------------
-- Table structure for table `assignments`
-- --------------------------------------------------------
CREATE TABLE IF NOT EXISTS `assignments` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `title` varchar(255) NOT NULL,
  `description` text,
  `due_date` date NOT NULL,
  `student_id` int(11) NOT NULL,
  `status` enum('pending','completed') NOT NULL DEFAULT 'pending',
  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `student_id` (`student_id`),
  CONSTRAINT `assignments_ibfk_1` FOREIGN KEY (`student_id`) REFERENCES `users` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- --------------------------------------------------------
-- Table structure for table `settings`
-- --------------------------------------------------------
CREATE TABLE IF NOT EXISTS `settings` (
  `setting_key` varchar(50) NOT NULL,
  `setting_value` text DEFAULT NULL,
  PRIMARY KEY (`setting_key`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- Insert default settings
INSERT INTO `settings` (`setting_key`, `setting_value`) VALUES
('days_before_due', '3'),
('notification_time', '08:00'),
('footer_text', 'ระบบแจ้งเตือนส่งงาน'),
('notify_via_line', '1'),
('notify_via_telegram', '1')
ON DUPLICATE KEY UPDATE setting_key=setting_key;

-- --------------------------------------------------------
-- Table structure for table `activity_logs`
-- --------------------------------------------------------
CREATE TABLE IF NOT EXISTS `activity_logs` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` int(11) DEFAULT NULL,
  `action` varchar(100) NOT NULL,
  `details` text DEFAULT NULL,
  `ip_address` varchar(45) DEFAULT NULL,
  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;