// Copyright 2022 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package routing

import (
	"net/http"

	"github.com/matrix-org/util"

	"github.com/matrix-org/dendrite/clientapi/jsonerror"
	"github.com/matrix-org/dendrite/roomserver/api"
	userapi "github.com/matrix-org/dendrite/userapi/api"
)

type getJoinedRoomsResponse struct {
	JoinedRooms []string `json:"joined_rooms"`
}

func GetJoinedRooms(
	req *http.Request,
	device *userapi.Device,
	rsAPI api.ClientRoomserverAPI,
) util.JSONResponse {
	var res api.QueryRoomsForUserResponse
	err := rsAPI.QueryRoomsForUser(req.Context(), &api.QueryRoomsForUserRequest{
		UserID:         device.UserID,
		WantMembership: "join",
	}, &res)
	if err != nil {
		util.GetLogger(req.Context()).WithError(err).Error("QueryRoomsForUser failed")
		return jsonerror.InternalServerError()
	}
	if res.RoomIDs == nil {
		res.RoomIDs = []string{}
	}
	return util.JSONResponse{
		Code: http.StatusOK,
		JSON: getJoinedRoomsResponse{res.RoomIDs},
	}
}