package handler

import (
	"net/http"

	"godemo/gateway/internal/logic"
	"godemo/gateway/internal/svc"
	"godemo/gateway/internal/types"

	"github.com/zeromicro/go-zero/rest/httpx"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
)

func createCategoryHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		var req types.CreateCategoryReq
		if err := httpx.Parse(r, &req); err != nil {
			httpx.ErrorCtx(r.Context(), w, err)
			return
		}

		l := logic.NewCreateCategoryLogic(r.Context(), svcCtx)
		resp, err := l.CreateCategory(&req)
		if err != nil {
			if s, ok := status.FromError(err); ok {
				// 判断 gRPC 错误码，并自定义 HTTP 返回
				var code int
				switch s.Code() {
				case codes.NotFound:
					code = http.StatusNotFound
				case codes.InvalidArgument:
					code = http.StatusBadRequest
				default:
					code = http.StatusInternalServerError
				}

				// 自定义 JSON 错误格式
				httpx.WriteJson(w, code, map[string]interface{}{
					"code":    code,
					"message": s.Message(),
				})
			} else {
				httpx.ErrorCtx(r.Context(), w, err)
			}
		} else {
			httpx.OkJsonCtx(r.Context(), w, resp)
		}
	}
}