package routing

// import (
// 	"encoding/json"
// 	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
// 	"github.com/matrix-org/dendrite/clientapi/auth/storage/devices"
// 	"github.com/matrix-org/dendrite/clientapi/httputil"
// 	"github.com/matrix-org/dendrite/syncapi/storage"
// 	"github.com/matrix-org/dendrite/syncapi/sync"
// 	"github.com/matrix-org/dendrite/syncapi/types"
// 	"github.com/matrix-org/gomatrixserverlib"
// 	"github.com/matrix-org/util"
// 	"net/http"
// )

// // SendToDevice this is a function for calling process of send-to-device messages those bypassed DAG
// func SendToDevice(
// 	req *http.Request,
// 	sender string,
// 	syncDB *storage.SyncServerDatasource,
// 	deviceDB *devices.Database,
// 	eventType, txnID string,
// 	notifier *sync.Notifier,
// ) util.JSONResponse {
// 	ctx := req.Context()
// 	stdRq := types.StdRequest{}
// 	httputil.UnmarshalJSONRequest(req, &stdRq)
// 	for uid, deviceMap := range stdRq.Sender {

// 		// federation consideration todo:
// 		// if uid is remote domain a fed process should go
// 		if false {
// 			// federation process
// 			return util.JSONResponse{}
// 		}

// 		// uid is local domain
// 		for device, cont := range deviceMap {
// 			jsonBuffer, err := json.Marshal(cont)
// 			if err != nil {
// 				return util.JSONResponse{
// 					Code: http.StatusForbidden,
// 					JSON: struct{}{},
// 				}
// 			}
// 			ev := types.StdHolder{
// 				Sender:   sender,
// 				Event:    jsonBuffer,
// 				EventTyp: eventType,
// 			}
// 			var pos int64

// 			// wildcard all devices
// 			if device == "*" {
// 				var deviceCollection []authtypes.Device
// 				var localpart string
// 				localpart, _, _ = gomatrixserverlib.SplitID('@', uid)
// 				deviceCollection, err = deviceDB.GetDevicesByLocalpart(ctx, localpart)
// 				for _, val := range deviceCollection {
// 					pos, err = syncDB.InsertStdMessage(ctx, ev, txnID, uid, val.ID)
// 					notifier.OnNewEvent(nil, uid, types.StreamPosition(pos))
// 				}
// 				if err != nil {
// 					return util.JSONResponse{
// 						Code: http.StatusForbidden,
// 						JSON: struct{}{},
// 					}
// 				}
// 				return util.JSONResponse{
// 					Code: http.StatusOK,
// 					JSON: struct{}{},
// 				}
// 			}
// 			pos, err = syncDB.InsertStdMessage(ctx, ev, txnID, uid, device)
// 			if err != nil {
// 				return util.JSONResponse{
// 					Code: http.StatusForbidden,
// 					JSON: struct{}{},
// 				}
// 			}
// 			notifier.OnNewEvent(nil, uid, types.StreamPosition(pos))
// 		}
// 	}

// 	return util.JSONResponse{
// 		Code: http.StatusOK,
// 		JSON: struct{}{},
// 	}
// }