-- =====================================================
-- 密碼重設功能資料表
-- =====================================================

USE `db_AI_Platform`;

-- 密碼重設 tokens 表
CREATE TABLE IF NOT EXISTS `password_reset_tokens` (
    `id` VARCHAR(36) PRIMARY KEY,
    `user_id` VARCHAR(36) NOT NULL,
    `token` VARCHAR(255) NOT NULL UNIQUE,
    `expires_at` TIMESTAMP NOT NULL,
    `used_at` TIMESTAMP NULL,
    `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    `updated_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    
    INDEX `idx_user_id` (`user_id`),
    INDEX `idx_token` (`token`),
    INDEX `idx_expires_at` (`expires_at`),
    FOREIGN KEY (`user_id`) REFERENCES `users`(`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;