-- 用户表
CREATE TABLE `User` (
  `user_id` VARCHAR(36) NOT NULL,
  `email` VARCHAR(255) NOT NULL,
  `username` VARCHAR(100) NOT NULL,
  `password` VARCHAR(255) NOT NULL,
  `gender` ENUM('m','f') NOT NULL,
  `school` VARCHAR(255) DEFAULT NULL,
  `avatar_url` VARCHAR(255) DEFAULT NULL,
  `bio` TEXT,
  `account_status` TINYINT(1) NOT NULL DEFAULT 0 COMMENT '0=正常,1=被ban',
  `invite_left` INT NOT NULL DEFAULT 0,
  PRIMARY KEY (`user_id`,`email`),
  UNIQUE KEY `uniq_email` (`email`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 用户邀请表
CREATE TABLE `UserInvite` (
  `user_id` VARCHAR(36) NOT NULL,
  `inviter_email` VARCHAR(255) NOT NULL,
  `inviter_registered` TINYINT(1) NOT NULL DEFAULT 0,
  PRIMARY KEY (`user_id`,`inviter_email`),
  CONSTRAINT `fk_ui_user` FOREIGN KEY (`user_id`) REFERENCES `User`(`user_id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 用户 PT 信息表
CREATE TABLE `UserPT` (
  `user_id` VARCHAR(36) NOT NULL,
  `magic` INT NOT NULL DEFAULT 0,
  `uploaded` BIGINT NOT NULL DEFAULT 0,
  `downloaded` BIGINT NOT NULL DEFAULT 0,
  `ratio` DECIMAL(5,2) NOT NULL DEFAULT 0.00,
  `default_seed_path` VARCHAR(255) DEFAULT NULL,
  `vip_downloads` INT NOT NULL DEFAULT 0,
  PRIMARY KEY (`user_id`),
  CONSTRAINT `fk_pt_user` FOREIGN KEY (`user_id`) REFERENCES `User`(`user_id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 种子表
CREATE TABLE `Seed` (
  `seed_id` VARCHAR(64) NOT NULL,
  `owner_user_id` VARCHAR(36) NOT NULL,
  `fake_hits` INT NOT NULL DEFAULT 0,
  `last_fake_check` DATETIME DEFAULT NULL,
  `external_url` VARCHAR(255) DEFAULT NULL,
  `title` VARCHAR(255) NOT NULL,
  `subtitle` VARCHAR(255) DEFAULT NULL,
  `size` VARCHAR(50) NOT NULL,
  `tags` VARCHAR(255) DEFAULT NULL,
  `popularity` INT NOT NULL DEFAULT 0,
  PRIMARY KEY (`seed_id`),
  CONSTRAINT `fk_seed_user` FOREIGN KEY (`owner_user_id`) REFERENCES `User`(`user_id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 种子下载表
CREATE TABLE `SeedDownload` (
  `task_id` VARCHAR(64) NOT NULL,
  `user_id` VARCHAR(36) NOT NULL,
  `seed_id` VARCHAR(64) NOT NULL,
  `download_start` DATETIME NOT NULL,
  `download_end` DATETIME DEFAULT NULL,
  `is_dedicated` TINYINT(1) NOT NULL DEFAULT 0 COMMENT '0=普通,1=专线',
  `client_ip` VARCHAR(45) DEFAULT NULL,
  PRIMARY KEY (`task_id`),
  CONSTRAINT `fk_sd_user` FOREIGN KEY (`user_id`) REFERENCES `User`(`user_id`) ON DELETE CASCADE,
  CONSTRAINT `fk_sd_seed` FOREIGN KEY (`seed_id`) REFERENCES `Seed`(`seed_id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 缓存种子数据表
CREATE TABLE `VipSeed` (
  `seed_id` VARCHAR(64) NOT NULL,
  `seeder_count` INT NOT NULL DEFAULT 0,
  `reward_magic` INT NOT NULL DEFAULT 0,
  `stop_caching` TINYINT(1) NOT NULL DEFAULT 0 COMMENT '0=继续缓存,1=不缓存',
  PRIMARY KEY (`seed_id`),
  CONSTRAINT `fk_vip_seed` FOREIGN KEY (`seed_id`) REFERENCES `Seed`(`seed_id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 传输信息表
CREATE TABLE `Transport` (
  `task_id` VARCHAR(64) NOT NULL,
  `uploader_id` VARCHAR(36) NOT NULL,
  `downloader_id` VARCHAR(36) NOT NULL,
  `seed_id` VARCHAR(64) NOT NULL,
  `uploaded` BIGINT NOT NULL DEFAULT 0,
  `downloaded` BIGINT NOT NULL DEFAULT 0,
  `upload_peak` BIGINT NOT NULL DEFAULT 0,
  `download_peak` BIGINT NOT NULL DEFAULT 0,
  PRIMARY KEY (`task_id`, `uploader_id`, `downloader_id`),
  CONSTRAINT `fk_tr_user_up` FOREIGN KEY (`uploader_id`) REFERENCES `User`(`user_id`) ON DELETE CASCADE,
  CONSTRAINT `fk_tr_user_down` FOREIGN KEY (`downloader_id`) REFERENCES `User`(`user_id`) ON DELETE CASCADE,
  CONSTRAINT `fk_tr_seed` FOREIGN KEY (`seed_id`) REFERENCES `Seed`(`seed_id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 求种任务表
CREATE TABLE `BegSeed` (
  `beg_id` VARCHAR(64) NOT NULL,
  `beg_count` INT NOT NULL DEFAULT 0,
  `reward_magic` INT NOT NULL DEFAULT 0,
  `deadline` DATETIME NOT NULL,
  `has_match` TINYINT(1) NOT NULL DEFAULT 0,
  PRIMARY KEY (`beg_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 提交悬赏任务表
CREATE TABLE `SubmitSeed` (
  `beg_id` VARCHAR(64) NOT NULL,
  `seed_id` VARCHAR(64) NOT NULL,
  `votes` INT NOT NULL DEFAULT 0,
  PRIMARY KEY (`beg_id`,`seed_id`),
  CONSTRAINT `fk_ss_beg` FOREIGN KEY (`beg_id`) REFERENCES `BegSeed`(`beg_id`) ON DELETE CASCADE,
  CONSTRAINT `fk_ss_seed` FOREIGN KEY (`seed_id`) REFERENCES `Seed`(`seed_id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 帖子表
CREATE TABLE `Post` (
  `post_id` VARCHAR(64) NOT NULL,
  `title` VARCHAR(255) NOT NULL,
  `content` TEXT NOT NULL,
  `author_id` VARCHAR(36) NOT NULL,
  `created_at` DATETIME NOT NULL,
  `reply_count` INT NOT NULL DEFAULT 0,
  `view_count` INT NOT NULL DEFAULT 0,
  PRIMARY KEY (`post_id`),
  CONSTRAINT `fk_post_user` FOREIGN KEY (`author_id`) REFERENCES `User`(`user_id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 帖子回复表
CREATE TABLE `PostReply` (
  `reply_id` VARCHAR(64) NOT NULL,
  `post_id` VARCHAR(64) NOT NULL,
  `content` TEXT NOT NULL,
  `author_id` VARCHAR(36) NOT NULL,
  `created_at` DATETIME NOT NULL,
  PRIMARY KEY (`reply_id`),
  CONSTRAINT `fk_pr_post` FOREIGN KEY (`post_id`) REFERENCES `Post`(`post_id`) ON DELETE CASCADE,
  CONSTRAINT `fk_pr_user` FOREIGN KEY (`author_id`) REFERENCES `User`(`user_id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 公告表
CREATE TABLE `Announcement` (
  `announce_id` VARCHAR(64) NOT NULL,
  `content` TEXT NOT NULL,
  `is_public` TINYINT(1) NOT NULL DEFAULT 0,
  `tag` VARCHAR(100) DEFAULT NULL,
  PRIMARY KEY (`announce_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 用户收藏夹表
CREATE TABLE `UserFavorite` (
  `user_id` VARCHAR(36) NOT NULL,
  `seed_id` VARCHAR(64) NOT NULL,
  PRIMARY KEY (`user_id`,`seed_id`),
  CONSTRAINT `fk_uf_user` FOREIGN KEY (`user_id`) REFERENCES `User`(`user_id`) ON DELETE CASCADE,
  CONSTRAINT `fk_uf_seed` FOREIGN KEY (`seed_id`) REFERENCES `Seed`(`seed_id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 用户迁移表
CREATE TABLE `UserMigration` (
  `migration_id` VARCHAR(64) NOT NULL,
  `user_id` VARCHAR(36) NOT NULL,
  `application_url` VARCHAR(255) NOT NULL,
  `approved` TINYINT(1) NOT NULL DEFAULT 0,
  `pending_magic` INT NOT NULL DEFAULT 0,
  `granted_magic` INT NOT NULL DEFAULT 0,
  `pending_uploaded` BIGINT NOT NULL DEFAULT 0,
  `granted_uploaded` BIGINT NOT NULL DEFAULT 0,
  PRIMARY KEY (`migration_id`),
  CONSTRAINT `fk_um_user` FOREIGN KEY (`user_id`) REFERENCES `User`(`user_id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 悬赏任务用户投票表
CREATE TABLE `UserVotes` (
  `user_id` VARCHAR(36) NOT NULL,
  `beg_id` VARCHAR(64) NOT NULL,
  `seed_id` VARCHAR(64) NOT NULL,
  `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`user_id`, `beg_id`, `seed_id`),
  FOREIGN KEY (`user_id`) REFERENCES `User`(`user_id`) ON DELETE CASCADE,
  FOREIGN KEY (`beg_id`) REFERENCES `BegSeed`(`beg_id`) ON DELETE CASCADE,
  FOREIGN KEY (`seed_id`) REFERENCES `Seed`(`seed_id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;