ref(TS) Convert some features to TS (#12454)

react/features/transcribing/middleware.ts

@@ -0,0 +1,86 @@
+import {
+    HIDDEN_PARTICIPANT_JOINED,
+    HIDDEN_PARTICIPANT_LEFT,
+    PARTICIPANT_UPDATED
+} from '../base/participants/actionTypes';
+import MiddlewareRegistry from '../base/redux/MiddlewareRegistry';
+import { toggleRequestingSubtitles } from '../subtitles/actions.any';
+
+import {
+    _TRANSCRIBER_JOINED,
+    _TRANSCRIBER_LEFT
+} from './actionTypes';
+import {
+    hidePendingTranscribingNotification,
+    potentialTranscriberJoined,
+    showStoppedTranscribingNotification,
+    transcriberJoined,
+    transcriberLeft
+} from './actions';
+
+const TRANSCRIBER_DISPLAY_NAME = 'Transcriber';
+
+/**
+ * Implements the middleware of the feature transcribing.
+ *
+ * @param {Store} store - The redux store.
+ * @returns {Function}
+ */
+// eslint-disable-next-line no-unused-vars
+MiddlewareRegistry.register(store => next => action => {
+    const {
+        transcriberJID,
+        potentialTranscriberJIDs
+    } = store.getState()['features/transcribing'];
+
+    switch (action.type) {
+    case _TRANSCRIBER_LEFT: {
+        store.dispatch(showStoppedTranscribingNotification());
+        const state = store.getState();
+        const { transcription } = state['features/base/config'];
+        const { _requestingSubtitles } = state['features/subtitles'];
+
+        if (_requestingSubtitles && !transcription?.disableStartForAll) {
+            store.dispatch(toggleRequestingSubtitles());
+        }
+        break;
+    }
+    case HIDDEN_PARTICIPANT_JOINED:
+        if (action.displayName
+                && action.displayName === TRANSCRIBER_DISPLAY_NAME) {
+            store.dispatch(transcriberJoined(action.id));
+        } else {
+            store.dispatch(potentialTranscriberJoined(action.id));
+        }
+
+        break;
+    case HIDDEN_PARTICIPANT_LEFT:
+        if (action.id === transcriberJID) {
+            store.dispatch(transcriberLeft(action.id));
+        }
+        break;
+    case PARTICIPANT_UPDATED: {
+        const { participant } = action;
+
+        if (potentialTranscriberJIDs.includes(participant.id)
+            && participant.name === TRANSCRIBER_DISPLAY_NAME) {
+            store.dispatch(transcriberJoined(participant.id));
+            store.dispatch(hidePendingTranscribingNotification());
+        }
+
+        break;
+    }
+    case _TRANSCRIBER_JOINED: {
+        const state = store.getState();
+        const { transcription } = state['features/base/config'];
+        const { _requestingSubtitles } = state['features/subtitles'];
+
+        if (!_requestingSubtitles && !transcription?.disableStartForAll) {
+            store.dispatch(toggleRequestingSubtitles());
+        }
+        break;
+    }
+    }
+
+    return next(action);
+});