package routing

import (
	"net/http"
	"time"

	"github.com/gorilla/mux"
	"github.com/matrix-org/dendrite/clientapi/jsonerror"
	"github.com/matrix-org/dendrite/internal/httputil"
	roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
	"github.com/matrix-org/dendrite/setup/config"
	"github.com/matrix-org/dendrite/setup/jetstream"
	userapi "github.com/matrix-org/dendrite/userapi/api"
	"github.com/matrix-org/util"
	"github.com/nats-io/nats.go"
	"github.com/sirupsen/logrus"
)

func AdminEvacuateRoom(req *http.Request, device *userapi.Device, rsAPI roomserverAPI.ClientRoomserverAPI) util.JSONResponse {
	if device.AccountType != userapi.AccountTypeAdmin {
		return util.JSONResponse{
			Code: http.StatusForbidden,
			JSON: jsonerror.Forbidden("This API can only be used by admin users."),
		}
	}
	vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
	if err != nil {
		return util.ErrorResponse(err)
	}
	roomID, ok := vars["roomID"]
	if !ok {
		return util.JSONResponse{
			Code: http.StatusBadRequest,
			JSON: jsonerror.MissingArgument("Expecting room ID."),
		}
	}
	res := &roomserverAPI.PerformAdminEvacuateRoomResponse{}
	rsAPI.PerformAdminEvacuateRoom(
		req.Context(),
		&roomserverAPI.PerformAdminEvacuateRoomRequest{
			RoomID: roomID,
		},
		res,
	)
	if err := res.Error; err != nil {
		return err.JSONResponse()
	}
	return util.JSONResponse{
		Code: 200,
		JSON: map[string]interface{}{
			"affected": res.Affected,
		},
	}
}

func AdminReindex(req *http.Request, cfg *config.ClientAPI, device *userapi.Device, natsClient *nats.Conn) util.JSONResponse {
	if device.AccountType != userapi.AccountTypeAdmin {
		return util.JSONResponse{
			Code: http.StatusForbidden,
			JSON: jsonerror.Forbidden("This API can only be used by admin users."),
		}
	}
	_, err := natsClient.RequestMsg(nats.NewMsg(cfg.Matrix.JetStream.Prefixed(jetstream.InputFulltextReindex)), time.Second*10)
	if err != nil {
		logrus.WithError(err).Error("failed to publish nats message")
		return jsonerror.InternalServerError()
	}
	logrus.Debugf("Indexing events")
	return util.JSONResponse{
		Code: http.StatusOK,
		JSON: struct{}{},
	}
}