-- +goose Up

-- 下单时冻结货架加价，后续改价不影响历史订单。
SET @sql = IF(
  (SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'rental_orders' AND COLUMN_NAME = 'base_price_cent') = 0,
  'ALTER TABLE rental_orders ADD COLUMN base_price_cent BIGINT NOT NULL DEFAULT 0 AFTER platform_fee_cent',
  'SELECT 1'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SET @sql = IF(
  (SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'rental_orders' AND COLUMN_NAME = 'shelf_markup_cent') = 0,
  'ALTER TABLE rental_orders ADD COLUMN shelf_markup_cent BIGINT NOT NULL DEFAULT 0 AFTER base_price_cent',
  'SELECT 1'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SET @sql = IF(
  (SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'rental_orders' AND COLUMN_NAME = 'markup_site_id') = 0,
  'ALTER TABLE rental_orders ADD COLUMN markup_site_id BIGINT UNSIGNED NOT NULL DEFAULT 0 AFTER shelf_markup_cent',
  'SELECT 1'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- +goose Down

SET @sql = IF(
  (SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'rental_orders' AND COLUMN_NAME = 'markup_site_id') > 0,
  'ALTER TABLE rental_orders DROP COLUMN markup_site_id',
  'SELECT 1'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SET @sql = IF(
  (SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'rental_orders' AND COLUMN_NAME = 'shelf_markup_cent') > 0,
  'ALTER TABLE rental_orders DROP COLUMN shelf_markup_cent',
  'SELECT 1'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SET @sql = IF(
  (SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'rental_orders' AND COLUMN_NAME = 'base_price_cent') > 0,
  'ALTER TABLE rental_orders DROP COLUMN base_price_cent',
  'SELECT 1'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;