mock shop page: can delete listings

internal/server/response/write.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"ruben/inventory2/internal/consts"
 
 	"github.com/gin-gonic/gin"
 )
@@ -46,11 +47,23 @@ func HandleErrors(c *gin.Context) {
 		}
 	}
 	if !ok {
-		var err error
+		var (
+			err         error
+			status      int
+			statusFound bool
+		)
 		for _, e := range c.Errors {
 			err = errors.Join(err, e)
+			if !statusFound {
+				status, statusFound = mapErrorConstantsToStatus(e)
+			}
 		}
-		c.String(http.StatusInternalServerError, err.Error())
+
+		if !statusFound {
+			status = http.StatusInternalServerError
+		}
+
+		c.String(status, err.Error())
 		return
 	}
 
@@ -131,3 +144,24 @@ func GetStatusFromError(err error) int {
 
 	return status
 }
+
+func mapErrorConstantsToStatus(err error) (int, bool) {
+	for {
+		switch err {
+		case consts.ErrBadRequest:
+			return http.StatusBadRequest, true
+		case consts.ErrNotFound:
+			return http.StatusNotFound, true
+		case consts.ErrConflict:
+			return http.StatusConflict, true
+		default:
+			werr, ok := err.(interface {
+				Unwrap() error
+			})
+			if !ok {
+				return 0, false
+			}
+			err = werr.Unwrap()
+		}
+	}
+}