-- 交付/输注计划及产品明细增加产品包装字段（透传至生产/质检出库工单展示）
-- 可重复执行：已存在列则跳过

SET @db := DATABASE();

-- biz_pilot_infusion_schedule.package_id
SET @exists := (
  SELECT COUNT(*) FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = @db AND TABLE_NAME = 'biz_pilot_infusion_schedule' AND COLUMN_NAME = 'package_id'
);
SET @sql := IF(@exists = 0,
  'ALTER TABLE `biz_pilot_infusion_schedule` ADD COLUMN `package_id` VARCHAR(64) NULL COMMENT ''产品包装ID'' AFTER `spec_text`',
  'SELECT 1');
PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;

-- biz_pilot_infusion_schedule.package_text
SET @exists := (
  SELECT COUNT(*) FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = @db AND TABLE_NAME = 'biz_pilot_infusion_schedule' AND COLUMN_NAME = 'package_text'
);
SET @sql := IF(@exists = 0,
  'ALTER TABLE `biz_pilot_infusion_schedule` ADD COLUMN `package_text` VARCHAR(200) NULL COMMENT ''产品包装名称（冗余展示）'' AFTER `package_id`',
  'SELECT 1');
PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;

-- biz_pilot_infusion_schedule_product.package_id
SET @exists := (
  SELECT COUNT(*) FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = @db AND TABLE_NAME = 'biz_pilot_infusion_schedule_product' AND COLUMN_NAME = 'package_id'
);
SET @sql := IF(@exists = 0,
  'ALTER TABLE `biz_pilot_infusion_schedule_product` ADD COLUMN `package_id` VARCHAR(64) NULL COMMENT ''产品包装ID'' AFTER `spec_text`',
  'SELECT 1');
PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;

-- biz_pilot_infusion_schedule_product.package_text
SET @exists := (
  SELECT COUNT(*) FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = @db AND TABLE_NAME = 'biz_pilot_infusion_schedule_product' AND COLUMN_NAME = 'package_text'
);
SET @sql := IF(@exists = 0,
  'ALTER TABLE `biz_pilot_infusion_schedule_product` ADD COLUMN `package_text` VARCHAR(200) NULL COMMENT ''产品包装名称（冗余展示）'' AFTER `package_id`',
  'SELECT 1');
PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;