-- ============================================================================
-- ServerManager Teams
-- Team-based access control: teams group users and servers together
-- ============================================================================

CREATE TABLE IF NOT EXISTS `teams` (
    `id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
    `name` VARCHAR(100) NOT NULL,
    `description` TEXT DEFAULT NULL,
    `created_by` INT UNSIGNED NOT NULL,
    `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    `updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    PRIMARY KEY (`id`),
    KEY `idx_name` (`name`),
    KEY `idx_created_by` (`created_by`),
    CONSTRAINT `fk_teams_created_by` FOREIGN KEY (`created_by`)
        REFERENCES `users` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS `team_user` (
    `id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
    `team_id` INT UNSIGNED NOT NULL,
    `user_id` INT UNSIGNED NOT NULL,
    `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    PRIMARY KEY (`id`),
    UNIQUE KEY `uk_team_user` (`team_id`, `user_id`),
    KEY `idx_user_id` (`user_id`),
    CONSTRAINT `fk_team_user_team` FOREIGN KEY (`team_id`)
        REFERENCES `teams` (`id`) ON DELETE CASCADE ON UPDATE CASCADE,
    CONSTRAINT `fk_team_user_user` FOREIGN KEY (`user_id`)
        REFERENCES `users` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS `team_server` (
    `id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
    `team_id` INT UNSIGNED NOT NULL,
    `server_id` INT UNSIGNED NOT NULL,
    `role` ENUM('viewer', 'manager') NOT NULL DEFAULT 'viewer',
    `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    PRIMARY KEY (`id`),
    UNIQUE KEY `uk_team_server` (`team_id`, `server_id`),
    KEY `idx_server_id` (`server_id`),
    CONSTRAINT `fk_team_server_team` FOREIGN KEY (`team_id`)
        REFERENCES `teams` (`id`) ON DELETE CASCADE ON UPDATE CASCADE,
    CONSTRAINT `fk_team_server_server` FOREIGN KEY (`server_id`)
        REFERENCES `servers` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;