package middleware

import (
	"context"
	"farga/templating"
	"net/http"

	"github.com/google/uuid"
	"github.com/gorilla/mux"
)

var UserHandleKey = "userHandle"

// manages retrieving user DB data.
func UserHandle(store Store) mux.MiddlewareFunc {
	return func(next http.Handler) http.Handler {
		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
			vars := mux.Vars(r)

			userHandle := vars["user"]

			user, err := store.UserHandle(userHandle)
			if err != nil || user.ID == uuid.Nil {
				templating.Render(w, r, "base", "not_found")
				return
			}

			ctx := context.WithValue(r.Context(), UserHandleKey, user)
			r = r.WithContext(ctx)

			next.ServeHTTP(w, r)
		})
	}
}