65 lines
2.2 KiB
TypeScript
65 lines
2.2 KiB
TypeScript
/*
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Copyright 2023 New Vector Ltd
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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 { EventType } from "matrix-js-sdk/src/@types/event";
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import { RoomState } from "matrix-js-sdk/src/models/room-state";
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import { PosthogAnalytics } from "../analytics/PosthogAnalytics";
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function isObject(x: unknown): x is Record<string, unknown> {
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return typeof x === "object" && x !== null;
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}
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/**
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* Checks the state of a room for multiple calls happening in parallel, sending
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* the details to PostHog if that is indeed what's happening. (This is unwanted
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* as it indicates a split-brain scenario.)
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*/
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export function checkForParallelCalls(state: RoomState): void {
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const now = Date.now();
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const participantsPerCall = new Map<string, number>();
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// For each participant in each call, increment the participant count
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for (const e of state.getStateEvents(EventType.GroupCallMemberPrefix)) {
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const content = e.getContent<Record<string, unknown>>();
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const calls: unknown[] = Array.isArray(content["m.calls"])
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? content["m.calls"]
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: [];
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for (const call of calls) {
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if (isObject(call) && typeof call["m.call_id"] === "string") {
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const devices: unknown[] = Array.isArray(call["m.devices"])
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? call["m.devices"]
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: [];
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for (const device of devices) {
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if (isObject(device) && (device["expires_ts"] as number) > now) {
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const participantCount =
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participantsPerCall.get(call["m.call_id"]) ?? 0;
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participantsPerCall.set(call["m.call_id"], participantCount + 1);
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}
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}
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}
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}
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}
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if (participantsPerCall.size > 1) {
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PosthogAnalytics.instance.trackEvent({
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eventName: "ParallelCalls",
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participantsPerCall: Object.fromEntries(participantsPerCall),
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});
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}
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}
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