-- 合同甲/乙/丙多方客商明细 + 运单/配载承运客商明细定位字段
-- utf8mb4_general_ci

-- 合同管理：多方客商 JSON 与丙方汇总
ALTER TABLE `blade_contract_manage`
  ADD COLUMN `party_a_json` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci COMMENT '甲方客商明细JSON' AFTER `party_b`,
  ADD COLUMN `party_b_json` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci COMMENT '乙方客商明细JSON' AFTER `party_a_json`,
  ADD COLUMN `party_c_json` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci COMMENT '丙方客商明细JSON' AFTER `party_b_json`,
  ADD COLUMN `party_c` varchar(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '丙方' AFTER `party_c_json`;

-- 合同变更：同步多方字段
ALTER TABLE `blade_contract_change`
  ADD COLUMN `party_a_json` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci COMMENT '甲方客商明细JSON' AFTER `party_b`,
  ADD COLUMN `party_b_json` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci COMMENT '乙方客商明细JSON' AFTER `party_a_json`,
  ADD COLUMN `party_c_json` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci COMMENT '丙方客商明细JSON' AFTER `party_b_json`,
  ADD COLUMN `party_c` varchar(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '丙方' AFTER `party_c_json`;

-- 历史数据迁移：原甲/乙方名称生成单行明细（仅名称，后续编辑补全客商ID）
UPDATE `blade_contract_manage`
SET `party_a_json` = CASE
  WHEN `party_a` IS NOT NULL AND TRIM(`party_a`) <> '' AND (`party_a_json` IS NULL OR TRIM(`party_a_json`) = '')
    THEN CONCAT('[{"id":"', REPLACE(UUID(), '-', ''), '","customerName":"', REPLACE(REPLACE(`party_a`, '\\', '\\\\'), '"', '\\"'), '"}]')
  ELSE `party_a_json`
END,
`party_b_json` = CASE
  WHEN `party_b` IS NOT NULL AND TRIM(`party_b`) <> '' AND (`party_b_json` IS NULL OR TRIM(`party_b_json`) = '')
    THEN CONCAT('[{"id":"', REPLACE(UUID(), '-', ''), '","customerName":"', REPLACE(REPLACE(`party_b`, '\\', '\\\\'), '"', '\\"'), '"}]')
  ELSE `party_b_json`
END
WHERE `is_deleted` = 0;

UPDATE `blade_contract_change`
SET `party_a_json` = CASE
  WHEN `party_a` IS NOT NULL AND TRIM(`party_a`) <> '' AND (`party_a_json` IS NULL OR TRIM(`party_a_json`) = '')
    THEN CONCAT('[{"id":"', REPLACE(UUID(), '-', ''), '","customerName":"', REPLACE(REPLACE(`party_a`, '\\', '\\\\'), '"', '\\"'), '"}]')
  ELSE `party_a_json`
END,
`party_b_json` = CASE
  WHEN `party_b` IS NOT NULL AND TRIM(`party_b`) <> '' AND (`party_b_json` IS NULL OR TRIM(`party_b_json`) = '')
    THEN CONCAT('[{"id":"', REPLACE(UUID(), '-', ''), '","customerName":"', REPLACE(REPLACE(`party_b`, '\\', '\\\\'), '"', '\\"'), '"}]')
  ELSE `party_b_json`
END
WHERE `is_deleted` = 0;

-- 运单：承运客商明细定位
ALTER TABLE `blade_waybill`
  ADD COLUMN `carrier_party_id` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '承运客商明细行ID' AFTER `carrier_contract_id`,
  ADD COLUMN `carrier_party_role` varchar(8) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '承运客商角色 B/C' AFTER `carrier_party_id`;

-- 配载：承运客商明细定位
ALTER TABLE `blade_loading_manage`
  ADD COLUMN `carrier_party_id` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '承运客商明细行ID' AFTER `carrier_contract_id`,
  ADD COLUMN `carrier_party_role` varchar(8) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '承运客商角色 B/C' AFTER `carrier_party_id`;