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

react/features/speaker-stats/middleware.ts

@@ -0,0 +1,63 @@
+import {
+    PARTICIPANT_JOINED,
+    PARTICIPANT_KICKED,
+    PARTICIPANT_LEFT,
+    PARTICIPANT_UPDATED
+} from '../base/participants/actionTypes';
+import MiddlewareRegistry from '../base/redux/MiddlewareRegistry';
+
+import {
+    INIT_SEARCH,
+    INIT_UPDATE_STATS,
+    RESET_SEARCH_CRITERIA
+} from './actionTypes';
+import { initReorderStats, updateSortedSpeakerStatsIds, updateStats } from './actions';
+import { filterBySearchCriteria, getPendingReorder, getSortedSpeakerStatsIds, resetHiddenStats } from './functions';
+
+MiddlewareRegistry.register(({ dispatch, getState }) => next => action => {
+    const result = next(action);
+
+    switch (action.type) {
+    case INIT_SEARCH: {
+        const state = getState();
+        const stats = filterBySearchCriteria(state);
+
+        dispatch(updateStats(stats));
+        break;
+    }
+
+    case INIT_UPDATE_STATS:
+        if (action.getSpeakerStats) {
+            const state = getState();
+            const speakerStats = { ...action.getSpeakerStats() };
+            const stats = filterBySearchCriteria(state, speakerStats);
+            const pendingReorder = getPendingReorder(state);
+
+            if (pendingReorder) {
+                dispatch(updateSortedSpeakerStatsIds(getSortedSpeakerStatsIds(state, stats)));
+            }
+
+            dispatch(updateStats(stats));
+        }
+
+        break;
+
+    case RESET_SEARCH_CRITERIA: {
+        const state = getState();
+        const stats = resetHiddenStats(state);
+
+        dispatch(updateStats(stats));
+        break;
+    }
+    case PARTICIPANT_JOINED:
+    case PARTICIPANT_LEFT:
+    case PARTICIPANT_KICKED:
+    case PARTICIPANT_UPDATED: {
+        dispatch(initReorderStats());
+
+        break;
+    }
+    }
+
+    return result;
+});