bj_power/bj_power_mes/internal/logic/material.go

package logic

import (
	"context"
	"errors"
	"fmt"
	"strings"
	"time"

	"bj_power_mes/ent"
	"bj_power_mes/ent/materialrequest"
	"bj_power_mes/ent/workorder"
)

// GenerateMaterialRequest 按日排产自动算料生成备料单
// 数量 = 该日所有工单计划数量 × 产品BOM单台用量×(1+损耗率)，材料来源=该工单产品的 BOM
// 生成前校验：BOM 内所有物料编码须在 WMS 物料档案存在，有缺失返回 missing（不生成）；
// WMS 不可达/异常时降级为"全部存在"并记 eventlog，避免 WMS 抖动阻塞产线。
// 返回值：count=本次生成条数；missing=WMS 中不存在的物料编码（非空时 count=0）。
func (s *Service) GenerateMaterialRequest(ctx context.Context, planDate string, operator string) (int, []string, error) {
	plans, err := s.ListDailyPlans(ctx, "", planDate)
	if err != nil {
		return 0, nil, err
	}
	if len(plans) == 0 {
		return 0, nil, errors.New("该日期没有排产计划")
	}
	type planBom struct {
		plan *ent.DailyPlan
		wo   *ent.WorkOrder
		bom  []*ent.BomItem
	}
	groups := make([]planBom, 0, len(plans))
	codeSet := map[string]bool{}
	for _, plan := range plans {
		if plan.Status == "CANCELLED" || plan.Status == "DONE" {
			continue // 已取消/已完成的排产不再算料
		}
		// 解析工单 → 产品编码 → 该产品 BOM
		wo, err := s.ctx.EntClient.WorkOrder.Query().
			Where(workorder.WorkOrderNo(plan.OrderNo)).Only(ctx)
		if err != nil {
			continue
		}
		bom, err := s.ListBom(ctx, wo.ProductCode)
		if err != nil {
			continue
		}
		if len(bom) == 0 {
			continue
		}
		for _, item := range bom {
			if item.MaterialCode != "" {
				codeSet[item.MaterialCode] = true
			}
		}
		groups = append(groups, planBom{plan: plan, wo: wo, bom: bom})
	}
	if len(groups) == 0 {
		return 0, nil, errors.New("该日期排产均无有效 BOM 物料，无法生成备料单")
	}
	// 阶段1：WMS 物料存在性校验（全部存在才生成）
	codes := make([]string, 0, len(codeSet))
	for c := range codeSet {
		codes = append(codes, c)
	}
	missing, wmsErr := s.ctx.Wms.MaterialExists(ctx, codes)
	if wmsErr != nil {
		// 降级：WMS 不可达按"全部存在"放行，记日志供事后核查
		s.ctx.EventLog.Write(ctx, "material.request.wms_skip", "", operator, "material_request", planDate,
			"WMS 物料校验不可达，已降级放行", map[string]any{"planDate": planDate, "error": wmsErr.Error()})
	} else if len(missing) > 0 {
		return 0, missing, nil
	}
	// 阶段2：全部存在 → 算料生成
	created := 0
	// 备料单号基准：一次生成调用只取一次时间戳，序号全局递增，避免同一秒内多物料/多工单重复
	tsBase := time.Now().Format("20060102150405")
	seq := 1
	for _, g := range groups {
		for _, item := range g.bom {
			reqQty := float64(g.plan.PlanQty) * item.UnitQty * (1 + item.LossRate/100)
			if reqQty <= 0 {
				continue
			}
			reqNo := fmt.Sprintf("MR%s%03d", tsBase, seq)
			seq++
			// 送达接驳台：取该排产确认的 dock_codes（可多选，逗号分隔），未确认则为空串待仓管下发时指定
			target := strings.Join(g.plan.DockCodes, ",")
			_ = s.ctx.EntClient.MaterialRequest.Create().
				SetRequestNo(reqNo).SetOrderNo(g.plan.OrderNo).SetPlanDate(g.plan.PlanDate).
				SetMaterialCode(item.MaterialCode).SetMaterialName(item.MaterialName).
				SetUnit(item.Unit).SetManageMode(item.ManageMode).SetReqQty(reqQty).
				SetStatus("PENDING").SetOperator(operator).
				SetTargetDock(target).Exec(ctx)
			created++
		}
	}
	s.ctx.EventLog.Write(ctx, "material.request.generate", "", operator, "material_request", planDate, "按日排产自动生成备料单", map[string]any{"planDate": planDate, "count": created})
	s.notifyDashboard()
	return created, nil, nil
}

// ListMaterialRequests 查询备料单
func (s *Service) ListMaterialRequests(ctx context.Context, orderNo, planDate, status string) ([]*ent.MaterialRequest, error) {
	q := s.ctx.EntClient.MaterialRequest.Query()
	if orderNo != "" {
		q = q.Where(materialrequest.OrderNo(orderNo))
	}
	if planDate != "" {
		q = q.Where(materialrequest.PlanDate(planDate))
	}
	if status != "" {
		q = q.Where(materialrequest.Status(status))
	}
	return q.Order(materialrequest.ByID()).All(ctx)
}

// SetMaterialRequestStatus 推进备料单状态（WMS 下发 AGV DELIVERING / 到位 DONE）
func (s *Service) SetMaterialRequestStatus(ctx context.Context, requestNo, status string) error {
	n, err := s.ctx.EntClient.MaterialRequest.Update().
		Where(materialrequest.RequestNo(requestNo)).
		SetStatus(status).
		Save(ctx)
	if err != nil {
		return err
	}
	if n == 0 {
		return errors.New("备料单不存在")
	}
	s.notifyDashboard()
	return nil
}