CREATE TABLE `user` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `name` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
  `password` varchar(255) NOT NULL,
  `admin` bit(1) NOT NULL DEFAULT b'0',
  `balance` bigint(20) NOT NULL DEFAULT 0,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;


CREATE TABLE `session` (
  `token` binary(32) NOT NULL,
  `user` int(10) unsigned NOT NULL,
  KEY `user` (`user`),
  CONSTRAINT `session_ibfk_1` FOREIGN KEY (`user`) REFERENCES `user` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;


CREATE TABLE `booking` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `affected` int(10) unsigned NOT NULL,
  `time` bigint(20) NOT NULL,
  `type` tinyint(1) unsigned NOT NULL,
  `amount` bigint(20) NOT NULL,
  `related` int(10) unsigned DEFAULT NULL,
  `comment` varchar(100) DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `affected` (`affected`),
  KEY `related` (`related`),
  CONSTRAINT `booking_ibfk_1` FOREIGN KEY (`affected`) REFERENCES `user` (`id`) ON DELETE CASCADE,
  CONSTRAINT `booking_ibfk_2` FOREIGN KEY (`related`) REFERENCES `user` (`id`) ON DELETE SET NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;