117 lines
3.9 KiB
Go
117 lines
3.9 KiB
Go
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package handler
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import (
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"net/http"
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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/zone"
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"bj_power_wms/internal/svc"
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)
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// zoneLoc 库位推荐候选（历史常用位 / 空闲位共用）：四级货位。
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type zoneLoc struct {
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ZoneCode string `json:"zoneCode"`
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ZoneName string `json:"zoneName"`
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ShelfNo string `json:"shelfNo"`
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LayerNo string `json:"layerNo"`
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PositionNo string `json:"positionNo"`
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}
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// locKey 四级货位归一键（NULL/空串归一为""），与 DB 组合唯一索引 ux_zones_location 语义一致。
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func locKey(zoneCode, shelfNo, layerNo, positionNo string) string {
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return zoneCode + "\x00" + shelfNo + "\x00" + layerNo + "\x00" + positionNo
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}
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// zoneRecommendHandler 库位推荐（客户诉求 问题记录 附二#4：拒绝全自动识别，
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// 采用「历史常用位 + 同区空位优先」推荐，由库房一键确认或手改）。
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//
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// 入参：materialCode（必填，图号）。
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// 返回（history/empty 均为四级货位对象，前端点击可一键回填区域+货架/层/位）：
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// - history: 该物料历史入库使用过的货位（按最近使用排序，最多 5 个）
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// - empty: 空闲货位（zones 中启用且当前无在库/锁定库存引用，最多 10 个；同区域优先）
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func zoneRecommendHandler(ctx *svc.ServiceContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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materialCode := r.URL.Query().Get("materialCode")
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if materialCode == "" {
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fail(w, http.StatusBadRequest, "materialCode 必填")
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return
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}
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// 1. 历史常用货位：该物料库存行按最近更新倒序，去重取前 5 个四级货位。
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history := []zoneLoc{}
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histSet := map[string]bool{}
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preferredZone := ""
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if invs, err := ctx.EntClient.Inventory.Query().
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Where(inventory.MaterialCodeEQ(materialCode)).
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Order(ent.Desc("updated_at"), ent.Desc("id")).
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Limit(200).All(ctx0()); err == nil {
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for _, inv := range invs {
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if inv.ZoneCode == "" {
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continue
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}
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key := locKey(inv.ZoneCode, inv.ShelfNo, inv.LayerNo, inv.PositionNo)
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if histSet[key] {
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continue
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}
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histSet[key] = true
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if preferredZone == "" {
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preferredZone = inv.ZoneCode
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}
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history = append(history, zoneLoc{
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ZoneCode: inv.ZoneCode, ShelfNo: inv.ShelfNo, LayerNo: inv.LayerNo, PositionNo: inv.PositionNo,
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})
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if len(history) >= 5 {
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break
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}
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}
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}
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// 2. 被占用货位集合：在库/锁定库存行引用的四级货位（U18：按货位而非区域判占用）。
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occupied := map[string]bool{}
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if rows, err := ctx.EntClient.Inventory.Query().
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Where(inventory.StatusIn("在库", "锁定")).
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Select(inventory.FieldZoneCode, inventory.FieldShelfNo, inventory.FieldLayerNo, inventory.FieldPositionNo).
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All(ctx0()); err == nil {
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for _, row := range rows {
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if row.ZoneCode != "" {
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occupied[locKey(row.ZoneCode, row.ShelfNo, row.LayerNo, row.PositionNo)] = true
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}
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}
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}
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// 3. 空闲货位：启用且四级货位未被占用的 zones 行；同区域(preferredZone)的排前面。
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sameArea := []zoneLoc{}
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otherArea := []zoneLoc{}
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if zones, err := ctx.EntClient.Zone.Query().
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Where(zone.StatusEQ("启用")).
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Order(ent.Asc("id")).
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All(ctx0()); err == nil {
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for _, z := range zones {
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if occupied[locKey(z.ZoneCode, z.ShelfNo, z.LayerNo, z.PositionNo)] {
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continue
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}
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zl := zoneLoc{
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ZoneCode: z.ZoneCode, ZoneName: z.ZoneName,
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ShelfNo: z.ShelfNo, LayerNo: z.LayerNo, PositionNo: z.PositionNo,
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}
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// 同区判定：区域(zone_code)相同（U18：zone_code 即区域级，不再靠前缀猜测）。
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if preferredZone != "" && z.ZoneCode == preferredZone {
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sameArea = append(sameArea, zl)
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} else {
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otherArea = append(otherArea, zl)
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}
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}
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}
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empty := append(sameArea, otherArea...)
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if len(empty) > 10 {
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empty = empty[:10]
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}
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ok(w, map[string]any{
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"history": history,
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"empty": empty,
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})
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}
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}
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