DROP TABLE IF EXISTS `categories`;
CREATE TABLE `categories` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `version` int(11) NOT NULL DEFAULT 0,
  `created` datetime NOT NULL DEFAULT current_timestamp(),
  `modified` datetime NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
  `name` varchar(255) NOT NULL,
  `is_food` bit(1) NOT NULL DEFAULT b'0',
  `tax_rate` float NOT NULL,
  `remarks` varchar(255) DEFAULT NULL,
  `priority` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin COMMENT='カテゴリ';
DELIMITER ;;
CREATE TRIGGER `version_check_before_update_on_categories` BEFORE UPDATE ON `categories` FOR EACH ROW begin
    if new.version <= old.version then
        signal SQLSTATE '45000'
        set MESSAGE_TEXT = 'Version mismatch detected.';
    end if;
END ;;
DELIMITER ;
DROP TABLE IF EXISTS `prices`;
CREATE TABLE `prices` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `version` int(11) NOT NULL DEFAULT 0,
  `created` datetime NOT NULL DEFAULT current_timestamp(),
  `modified` datetime NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
  `price` float DEFAULT NULL COMMENT '価格(税込)',
  `quantity` float DEFAULT NULL COMMENT '数量',
  `tax_rate` float NOT NULL COMMENT '税率',
  `product_id` bigint(20) NOT NULL,
  `store_id` bigint(20) NOT NULL,
  `confirmed` datetime DEFAULT NULL COMMENT '確認日時',
  `remarks` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `fk_product_id_products_id` (`product_id`),
  KEY `fk_store_id_stores_id` (`store_id`),
  CONSTRAINT `fk_product_id_products_id` FOREIGN KEY (`product_id`) REFERENCES `products` (`id`),
  CONSTRAINT `fk_store_id_stores_id` FOREIGN KEY (`store_id`) REFERENCES `stores` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin COMMENT='価格';
DELIMITER ;;
CREATE TRIGGER `version_check_before_update_on_prices` BEFORE UPDATE ON `prices` FOR EACH ROW begin
    if new.version <= old.version then
        signal SQLSTATE '45000'
        set MESSAGE_TEXT = 'Version mismatch detected.';
    end if;
END ;;
DELIMITER ;
DROP TABLE IF EXISTS `products`;
CREATE TABLE `products` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `version` int(11) NOT NULL DEFAULT 0,
  `created` datetime NOT NULL DEFAULT current_timestamp(),
  `modified` datetime NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
  `name` varchar(255) NOT NULL,
  `category_id` bigint(20) NOT NULL,
  `unit` varchar(50) DEFAULT NULL,
  `remarks` varchar(255) DEFAULT NULL,
  `priority` int(11) DEFAULT NULL,
  `image` LONGBLOB NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`),
  KEY `category_id` (`category_id`),
  CONSTRAINT `fk_category_id_categories_id` FOREIGN KEY (`category_id`) REFERENCES `categories` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin COMMENT='製品';
DELIMITER ;;
CREATE TRIGGER `version_check_before_update_on_products` BEFORE UPDATE ON `products` FOR EACH ROW begin
    if new.version <= old.version then
        signal SQLSTATE '45000'
        set MESSAGE_TEXT = 'Version mismatch detected.';
    end if;
END ;;
DELIMITER ;
DROP TABLE IF EXISTS `stores`;
CREATE TABLE `stores` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `version` int(11) NOT NULL DEFAULT 0,
  `created` datetime NOT NULL DEFAULT current_timestamp(),
  `modefied` datetime NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
  `name` varchar(255) NOT NULL,
  `remarks` varchar(255) DEFAULT NULL,
  `priority` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin COMMENT='店舗';
DELIMITER ;;
CREATE TRIGGER `version_check_before_update_on_stores` BEFORE UPDATE ON `stores` FOR EACH ROW begin
    if new.version <= old.version then
        signal SQLSTATE '45000'
        set MESSAGE_TEXT = 'Version mismatch detected.';
    end if;
END ;;
DELIMITER ;