-- 二期第三方单条箱规 + 单张图片绑定增量；可重复执行。
USE baiyue_firstleg;

DROP PROCEDURE IF EXISTS phase2_add_measurement_column;
DELIMITER $$
CREATE PROCEDURE phase2_add_measurement_column(
  IN p_table VARCHAR(64), IN p_column VARCHAR(64), IN p_definition TEXT)
BEGIN
  IF NOT EXISTS (
    SELECT 1 FROM information_schema.COLUMNS
    WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = p_table AND COLUMN_NAME = p_column
  ) THEN
    SET @ddl = CONCAT('ALTER TABLE `', p_table, '` ADD COLUMN `', p_column, '` ', p_definition);
    PREPARE statement FROM @ddl;
    EXECUTE statement;
    DEALLOCATE PREPARE statement;
  END IF;
END$$
DELIMITER ;

CALL phase2_add_measurement_column(
  'fl_inbound_measurement', 'external_request_hash',
  'CHAR(64) NULL COMMENT ''第三方data原文和图片内容联合请求哈希'' AFTER external_event_no');
CALL phase2_add_measurement_column(
  'fl_inbound_measurement_item', 'inbound_detail_id',
  'BIGINT UNSIGNED NULL COMMENT ''绑定的订单货物明细ID，平台手工明细可为空'' AFTER measurement_id');
CALL phase2_add_measurement_column(
  'fl_inbound_measurement_item', 'external_detail_no',
  'VARCHAR(128) NULL COMMENT ''第三方测量明细唯一号，平台手工明细可为空'' AFTER inbound_detail_id');

DROP PROCEDURE IF EXISTS phase2_add_measurement_column;

SET @has_index = (
  SELECT COUNT(*) FROM information_schema.STATISTICS
  WHERE TABLE_SCHEMA = DATABASE()
    AND TABLE_NAME = 'fl_inbound_measurement_item'
    AND INDEX_NAME = 'uk_measure_external_detail'
);
SET @ddl = IF(
  @has_index = 0,
  'ALTER TABLE fl_inbound_measurement_item ADD UNIQUE KEY uk_measure_external_detail (tenant_id, inbound_detail_id, external_detail_no)',
  'SELECT 1'
);
PREPARE statement FROM @ddl;
EXECUTE statement;
DEALLOCATE PREPARE statement;