package categories

import (
	"gis/app"
	"gis/server/httputil"
	"net/http"
)

type UpdateCategoryRequest struct {
	Name        string `json:"name" validate:"required,max=255"`
	Description string `json:"description" validate:"required"`
}

func updateCategoryRoute(application *app.App) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		id := r.PathValue("id")

		req, err := httputil.DecodeJSON[UpdateCategoryRequest](w, r)
		if err != nil {
			http.Error(w, "Invalid request", http.StatusBadRequest)
			return
		}

		if err := application.Validator.Struct(req); err != nil {
			httputil.WriteValidationErrors(w, err)
			return
		}

		tag, err := application.Db.Exec(application.Ctx,
			"UPDATE categories SET name=$1, description=$2, updated_at=now() WHERE id=$3",
			req.Name, req.Description, id,
		)
		if err != nil {
			w.WriteHeader(http.StatusInternalServerError)
			return
		}
		if tag.RowsAffected() == 0 {
			w.WriteHeader(http.StatusNotFound)
			return
		}

		w.WriteHeader(http.StatusNoContent)
	}
}