42 lines
1.4 KiB
TypeScript
42 lines
1.4 KiB
TypeScript
/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { MatrixClient, Room } from "matrix-js-sdk/src/matrix";
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import { Member } from "../direct-messages";
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import DMRoomMap from "../DMRoomMap";
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import { findDMForUser } from "./findDMForUser";
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/**
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* Tries to find a DM room with some other users.
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*
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* @param {MatrixClient} client
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* @param {Member[]} targets The Members to try to find the room for
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* @returns {Room | null} Resolved so the room if found, else null
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*/
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export function findDMRoom(client: MatrixClient, targets: Member[]): Room | null {
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const targetIds = targets.map((t) => t.userId);
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let existingRoom: Room;
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if (targetIds.length === 1) {
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existingRoom = findDMForUser(client, targetIds[0]);
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} else {
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existingRoom = DMRoomMap.shared().getDMRoomForIdentifiers(targetIds);
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}
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if (existingRoom) {
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return existingRoom;
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}
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return null;
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}
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