package handler

import (
	"net/http"

	"bj_power_wms/ent"
	"bj_power_wms/ent/zone"
	"bj_power_wms/internal/svc"
)

// createZoneHandler 创建区域
func createZoneHandler(ctx *svc.ServiceContext) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		var req struct {
			ZoneCode    string `json:"zoneCode"`
			ZoneName    string `json:"zoneName"`
			Description string `json:"description"`
		}
		if err := parseJSON(r, &req); err != nil {
			fail(w, http.StatusBadRequest, "参数错误")
			return
		}
		if req.ZoneCode == "" || req.ZoneName == "" {
			fail(w, http.StatusBadRequest, "zoneCode 和 zoneName 必填")
			return
		}

		exists, err := ctx.EntClient.Zone.Query().
			Where(zone.ZoneCodeEQ(req.ZoneCode)).
			Exist(ctx0())
		if err != nil {
			fail(w, http.StatusInternalServerError, err.Error())
			return
		}
		if exists {
			fail(w, http.StatusConflict, "区域编码已存在")
			return
		}

		z, err := ctx.EntClient.Zone.Create().
			SetZoneCode(req.ZoneCode).
			SetZoneName(req.ZoneName).
			SetNillableDescription(strPtr(req.Description)).
			Save(ctx0())
		if err != nil {
			fail(w, http.StatusInternalServerError, err.Error())
			return
		}
		ok(w, z)
	}
}

// listZonesHandler 区域列表
func listZonesHandler(ctx *svc.ServiceContext) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		list, err := ctx.EntClient.Zone.Query().Order(ent.Desc("id")).All(ctx0())
		if err != nil {
			fail(w, http.StatusInternalServerError, err.Error())
			return
		}
		ok(w, list)
	}
}