213 lines
7.0 KiB
Go
213 lines
7.0 KiB
Go
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package handler
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import (
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"net/http"
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"strconv"
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"time"
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"bj_power_wms/ent"
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"bj_power_wms/ent/inventory"
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"bj_power_wms/ent/ordermaterialledger"
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"bj_power_wms/internal/svc"
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"github.com/google/uuid"
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"github.com/zeromicro/go-zero/core/logx"
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)
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// backflushRequest 反冲扣账请求（MES 报工完成时调用，X-API-TOKEN 内部接口）
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// 物料在该道工序被消耗，不依赖事先发料：报工完成即反冲扣库存。
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// items 由 MES 按「工单产品 BOM + 当前工序 processCode」算好（含损耗），WMS 只负责 FIFO 扣减与记账。
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type backflushRequest struct {
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OrderNo string `json:"orderNo"` // 关联工单号（可空=不挂台账）
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StationNo int `json:"stationNo"` // 当前工位号（记录用）
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ProcessCode int `json:"processCode"` // 当前工序号（记录用）
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Operator string `json:"operator"`
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Items []backflushItem `json:"items"` // 本次消耗的物料明细
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}
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type backflushItem struct {
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MaterialCode string `json:"materialCode"`
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Qty int `json:"qty"` // 该工序单件消耗（已含损耗）* 完成件数
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}
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// backflushInternalHandler 反冲扣账（库存 FIFO 扣减 + 生成 backflush 类型出库单 + 台账累计）
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// 事务保证：出库单 + 库存扣减 + 出库明细 + 工单台账 原子提交。
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// 任意物料库存不足（FIFO 无法足额）时，扣足可用部分、记短欠日志、不阻塞产线（反冲降级同成品回流）。
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func backflushInternalHandler(ctx *svc.ServiceContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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var req backflushRequest
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if err := parseJSON(r, &req); err != nil {
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fail(w, http.StatusBadRequest, "参数错误: "+err.Error())
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return
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}
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if len(req.Items) == 0 {
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ok(w, map[string]any{"outboundNo": "", "consumed": 0, "shortfall": false, "note": "无反冲物料"})
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return
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}
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outboundNo := "BF" + uuid.NewString()[:12]
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tx, err := ctx.EntClient.Tx(ctx0())
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if err != nil {
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fail(w, http.StatusInternalServerError, "开启事务失败: "+err.Error())
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return
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}
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committed := false
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defer func() {
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if !committed {
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_ = tx.Rollback()
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}
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}()
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// 1. 创建反冲出库单（type=backflush，数量后置更新）
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ob, err := tx.OutboundOrder.Create().
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SetOutboundNo(outboundNo).
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SetOutboundType("backflush").
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SetNillableOrderNo(strPtr(req.OrderNo)).
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SetMaterialCode(""). // 反冲单为整份 BOM，主表物料留空，明细承载
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SetManageMode(1).
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SetQuantity(0).
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SetNillableOperator(strPtr(req.Operator)).
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SetNillableTargetStation(strPtr(strconv.Itoa(req.StationNo))).
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SetRemark("反冲扣账(工序" + strconv.Itoa(req.ProcessCode) + ")").
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Save(ctx0())
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if err != nil {
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fail(w, http.StatusInternalServerError, "创建反冲单失败: "+err.Error())
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return
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}
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// 2. FIFO 逐物料扣减 + 台账累计
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totalConsumed := 0
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shortfall := false
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for _, it := range req.Items {
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if it.MaterialCode == "" || it.Qty <= 0 {
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continue
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}
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consumed, sf := fifoConsume(tx, it.MaterialCode, it.Qty, outboundNo, req.OrderNo)
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totalConsumed += consumed
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if sf {
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shortfall = true
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logx.Errorf("backflush shortfall: order=%s material=%s need=%d got=%d", req.OrderNo, it.MaterialCode, it.Qty, consumed)
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}
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// 台账累计（仅挂工单时）
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if req.OrderNo != "" {
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ledger, lerr := tx.OrderMaterialLedger.Query().
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Where(
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ordermaterialledger.OrderNoEQ(req.OrderNo),
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ordermaterialledger.MaterialCodeEQ(it.MaterialCode),
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).Only(ctx0())
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if lerr == nil && ledger != nil {
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newOut := ledger.OutQty + consumed
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status := ledger.Status
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if newOut >= ledger.TotalQty {
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status = "领料完结"
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}
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upd := tx.OrderMaterialLedger.UpdateOneID(ledger.ID).
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SetOutQty(newOut).
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SetStatus(status)
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if status == "领料完结" && ledger.Status != "领料完结" {
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upd.SetCompletedAt(time.Now().Unix())
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}
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if _, lerr = upd.Save(ctx0()); lerr != nil {
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fail(w, http.StatusInternalServerError, "更新台账失败: "+lerr.Error())
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return
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}
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}
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}
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}
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// 3. 回写出库单实际数量
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if _, err = tx.OutboundOrder.UpdateOneID(ob.ID).SetQuantity(totalConsumed).Save(ctx0()); err != nil {
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fail(w, http.StatusInternalServerError, "更新反冲单失败: "+err.Error())
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return
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}
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if err = tx.Commit(); err != nil {
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fail(w, http.StatusInternalServerError, "提交事务失败: "+err.Error())
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return
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}
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committed = true
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ctx.EventLog.Write(ctx0(), "material.backflush", req.Operator, "backflush", outboundNo,
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"反冲扣账 工单 "+req.OrderNo+" 工序"+strconv.Itoa(req.ProcessCode)+" 共消耗 ×"+strconv.Itoa(totalConsumed),
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map[string]any{"orderNo": req.OrderNo, "stationNo": req.StationNo, "consumed": totalConsumed, "shortfall": shortfall})
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logx.Infof("backflush: order=%s station=%d consumed=%d shortfall=%v", req.OrderNo, req.StationNo, totalConsumed, shortfall)
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ok(w, map[string]any{
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"outboundNo": outboundNo,
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"consumed": totalConsumed,
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"shortfall": shortfall,
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})
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}
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}
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// fifoConsume 按 created_at 升序（先进先出）扣减某物料库存，跨批次/单件 SN 统一处理。
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// 返回实际扣减数；库存不足足额时 shortfall=true（已扣可用部分），不报错。
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func fifoConsume(tx *ent.Tx, materialCode string, qty int, outboundNo, orderNo string) (int, bool) {
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rows, err := tx.Inventory.Query().
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Where(
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inventory.MaterialCodeEQ(materialCode),
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inventory.StatusEQ("在库"),
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inventory.QualityStatusNotIn("不合格", "待退"),
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).
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Order(ent.Asc("created_at")).
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All(ctx0())
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if err != nil {
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return 0, true
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}
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remaining := qty
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consumed := 0
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for _, row := range rows {
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if remaining <= 0 {
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break
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}
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avail := row.Quantity - row.LockedQty
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if avail <= 0 {
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continue
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}
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take := avail
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if take > remaining {
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take = remaining
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}
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if row.ManageMode == 2 {
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// SN 单件：整件消耗并置出库
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aff, e := tx.Inventory.Update().
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Where(inventory.ID(row.ID), inventory.StatusEQ("在库")).
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SetStatus("出库").Save(ctx0())
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if e != nil || aff == 0 {
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continue
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}
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if _, e = tx.OutboundDetail.Create().
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SetOutboundNo(outboundNo).
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SetSnCode(row.SnCode).
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SetMaterialCode(materialCode).
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SetQuantity(1).
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SetNillableOrderNo(strPtr(orderNo)).Save(ctx0()); e != nil {
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return consumed, true
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}
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consumed += 1
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remaining -= 1
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} else {
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// 批次：条件原子扣减（quantity>=take 才减，避免超扣/并发负库存）
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aff, e := tx.Inventory.Update().
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Where(inventory.ID(row.ID), inventory.QuantityGTE(take)).
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AddQuantity(-take).
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AddLockedQty(-min(take, row.LockedQty)).
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Save(ctx0())
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if e != nil || aff == 0 {
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continue
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}
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if _, e = tx.OutboundDetail.Create().
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SetOutboundNo(outboundNo).
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SetBatchNo(row.BatchNo).
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SetMaterialCode(materialCode).
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SetQuantity(take).
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SetNillableOrderNo(strPtr(orderNo)).Save(ctx0()); e != nil {
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return consumed, true
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}
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consumed += take
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remaining -= take
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}
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}
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return consumed, remaining > 0
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}
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