SET NAMES utf8mb4 COLLATE utf8mb4_unicode_ci;

-- 工资政策是按 App/月份维护的小型配置表；四次在线 DDL 只改表结构，不读取钱包、提现或工资流水。
SET @ddl := IF(
  (SELECT COUNT(*) FROM information_schema.COLUMNS
   WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'admin_host_agency_salary_policies'
     AND COLUMN_NAME = 'coin_seller_withdrawal_limit_period') = 0,
  'ALTER TABLE admin_host_agency_salary_policies ADD COLUMN coin_seller_withdrawal_limit_period VARCHAR(16) NOT NULL DEFAULT ''month'' COMMENT ''用户找币商提现限制周期：day/week/month'' AFTER residual_diamond_to_usd_rate, ALGORITHM=INPLACE, LOCK=NONE',
  'SELECT 1'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SET @ddl := IF(
  (SELECT COUNT(*) FROM information_schema.COLUMNS
   WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'admin_host_agency_salary_policies'
     AND COLUMN_NAME = 'coin_seller_withdrawal_limit_count') = 0,
  'ALTER TABLE admin_host_agency_salary_policies ADD COLUMN coin_seller_withdrawal_limit_count BIGINT NOT NULL DEFAULT 0 COMMENT ''用户找币商提现次数，0 表示不限'' AFTER coin_seller_withdrawal_limit_period, ALGORITHM=INPLACE, LOCK=NONE',
  'SELECT 1'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SET @ddl := IF(
  (SELECT COUNT(*) FROM information_schema.COLUMNS
   WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'admin_host_agency_salary_policies'
     AND COLUMN_NAME = 'platform_withdrawal_limit_period') = 0,
  'ALTER TABLE admin_host_agency_salary_policies ADD COLUMN platform_withdrawal_limit_period VARCHAR(16) NOT NULL DEFAULT ''month'' COMMENT ''用户找平台提现限制周期：day/week/month'' AFTER coin_seller_withdrawal_limit_count, ALGORITHM=INPLACE, LOCK=NONE',
  'SELECT 1'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SET @ddl := IF(
  (SELECT COUNT(*) FROM information_schema.COLUMNS
   WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'admin_host_agency_salary_policies'
     AND COLUMN_NAME = 'platform_withdrawal_limit_count') = 0,
  'ALTER TABLE admin_host_agency_salary_policies ADD COLUMN platform_withdrawal_limit_count BIGINT NOT NULL DEFAULT 0 COMMENT ''用户找平台提现次数，0 表示不限'' AFTER platform_withdrawal_limit_period, ALGORITHM=INPLACE, LOCK=NONE',
  'SELECT 1'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;