-- X-Server 用户多飞书应用绑定功能
-- 执行方式：在数据库中直接执行此SQL

USE xserver;

-- =====================================
-- 1. 添加 users 表唯一约束
-- =====================================

-- 删除可能存在的旧索引
ALTER TABLE users DROP INDEX IF EXISTS idx_email;
ALTER TABLE users DROP INDEX IF EXISTS idx_phone;

-- 添加 email 唯一索引（同一公司内邮箱唯一）
CREATE UNIQUE INDEX uk_users_company_email ON users(company_id, email);

-- 添加 phone 唯一索引（同一公司内手机号唯一）
CREATE UNIQUE INDEX uk_users_company_phone ON users(company_id, phone);

-- =====================================
-- 2. 创建用户飞书应用绑定表
-- =====================================

DROP TABLE IF EXISTS user_feishu_apps;

CREATE TABLE `user_feishu_apps` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT COMMENT "ID",
  `user_id` bigint unsigned NOT NULL COMMENT "用户ID",
  `company_id` bigint unsigned NOT NULL COMMENT "公司ID",
  `feishu_app_id` int unsigned NOT NULL COMMENT "飞书应用配置ID",

  -- 该应用中的飞书用户信息
  `feishu_user_id` varchar(60) DEFAULT NULL COMMENT "该应用的飞书用户ID",
  `feishu_open_id` varchar(60) DEFAULT NULL COMMENT "该应用的飞书OpenID",
  `tenant_key` varchar(60) DEFAULT NULL COMMENT "该应用的租户Key",

  -- 绑定信息
  `is_default` tinyint NOT NULL DEFAULT 0 COMMENT "是否为默认应用: 1=是, 0=否",
  `last_login_at` timestamp NULL DEFAULT NULL COMMENT "最后一次通过此应用登录时间",
  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT "绑定时间",
  `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT "更新时间",

  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_user_app` (`user_id`, `company_id`, `feishu_app_id`),
  KEY `idx_user_default` (`user_id`, `company_id`, `is_default`),
  KEY `idx_feishu_user_id` (`feishu_user_id`),
  KEY `idx_feishu_open_id` (`feishu_open_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT="用户飞书应用绑定表";

-- =====================================
-- 3. 修改 users 表，移除不需要的飞书字段
-- =====================================

-- 注意：为了兼容性，先保留现有字段，后续可考虑迁移
-- ALTER TABLE users DROP COLUMN feishu_user_id;
-- ALTER TABLE users DROP COLUMN feishu_open_id;
-- ALTER TABLE users DROP COLUMN tenant_key;

-- 临时方案：添加 feishu_app_id 记录最后登录的应用
ALTER TABLE users
ADD COLUMN `feishu_app_id` int unsigned DEFAULT NULL
COMMENT '最后登录的飞书应用ID'
AFTER `tenant_key`;

ALTER TABLE users
ADD INDEX `idx_feishu_app_id` (`feishu_app_id`);

-- =====================================
-- 4. 迁移现有用户飞书绑定数据（如果有的话）
-- =====================================

-- 将现有 users 表中的飞书信息迁移到绑定表
-- 只处理有 feishu_user_id 的用户
INSERT INTO user_feishu_apps (
  user_id,
  company_id,
  feishu_app_id,
  feishu_user_id,
  feishu_open_id,
  tenant_key,
  is_default,
  last_login_at
)
SELECT
  u.id as user_id,
  u.company_id,
  u.feishu_app_id as feishu_app_id,
  u.feishu_user_id,
  u.feishu_open_id,
  u.tenant_key,
  1 as is_default,
  NOW() as last_login_at
FROM users u
WHERE u.feishu_user_id IS NOT NULL
  AND u.feishu_app_id IS NOT NULL
ON DUPLICATE KEY UPDATE
  last_login_at = NOW();

-- =====================================
-- 验证结果
-- =====================================

SELECT "=== 用户表唯一约束 ===" as "";
SHOW INDEX FROM users WHERE Key_name LIKE 'uk_users_company%';

SELECT "=== 飞书应用绑定表结构 ===" as "";
DESCRIBE user_feishu_apps;

SELECT "=== 现有用户飞书绑定数据 ===" as "";
SELECT
  u.id as user_id,
  u.name,
  u.company_id,
  u.feishu_app_id,
  COUNT(ufa.id) as app_count
FROM users u
LEFT JOIN user_feishu_apps ufa ON u.id = ufa.user_id
GROUP BY u.id, u.name, u.company_id, u.feishu_app_id;