-- 表：wms_inbound_item
-- 用途：入库明细。入库单行，数量列是各作业的汇总结果。
-- 约定：InnoDB / utf8mb4 / 无外键，表间按业务编码关联。详见 docs/database/00-conventions.md
-- 说明：汇总列由收货、质检、上架记录在同一事务内回写。事实以那些记录和库存流水为准。

CREATE TABLE `wms_inbound_item` (
  `id` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '内部主键',
  `tenant_code` VARCHAR(32) NOT NULL COMMENT '租户编码',
  `inbound_no` VARCHAR(64) NOT NULL COMMENT '入库单号',
  `line_no` INT UNSIGNED NOT NULL COMMENT '行号',
  `sku_code` VARCHAR(64) NOT NULL COMMENT 'SKU 编码',
  `sku_name` VARCHAR(128) NOT NULL DEFAULT '' COMMENT '下单时的 SKU 名称快照',
  `expected_qty` DECIMAL(16,4) NOT NULL DEFAULT 0.0000 COMMENT '预计数量',
  `received_qty` DECIMAL(16,4) NOT NULL DEFAULT 0.0000 COMMENT '已收数量汇总',
  `qualified_qty` DECIMAL(16,4) NOT NULL DEFAULT 0.0000 COMMENT '质检合格数量汇总',
  `unqualified_qty` DECIMAL(16,4) NOT NULL DEFAULT 0.0000 COMMENT '质检不合格数量汇总',
  `putaway_qty` DECIMAL(16,4) NOT NULL DEFAULT 0.0000 COMMENT '已上架数量汇总',
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '创建时间',
  `updated_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3) COMMENT '更新时间',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_tenant_inbound_line` (`tenant_code`, `inbound_no`, `line_no`),
  KEY `idx_tenant_sku` (`tenant_code`, `sku_code`),
  CONSTRAINT `chk_inbound_item_qty` CHECK (`expected_qty` > 0 AND `received_qty` >= 0 AND `qualified_qty` >= 0 AND `unqualified_qty` >= 0 AND `putaway_qty` >= 0)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci COMMENT='入库明细';