Gab Social. All are welcome.

app/javascript/gabsocial/reducers/trends.js

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+import {
+  TRENDS_FETCH_REQUEST,
+  TRENDS_FETCH_SUCCESS,
+  TRENDS_FETCH_FAIL,
+} from '../actions/trends';
+import { Map as ImmutableMap, List as ImmutableList, fromJS } from 'immutable';
+
+const initialState = ImmutableMap({
+  items: ImmutableList(),
+  isLoading: false,
+});
+
+export default function trendsReducer(state = initialState, action) {
+  switch(action.type) {
+    case TRENDS_FETCH_REQUEST:
+      return state.set('isLoading', true);
+    case TRENDS_FETCH_SUCCESS:
+      return state.withMutations(map => {
+        map.set('items', fromJS(action.tags.map((x => x))))
+        map.set('isLoading', false);
+      });
+    case TRENDS_FETCH_FAIL:
+      return state.set('isLoading', false);
+    default:
+      return state;
+  }
+};