Move date range selection into redux.

redux/actions/websites.js

@@ -0,0 +1,34 @@
+import { createSlice } from '@reduxjs/toolkit';
+import produce from 'immer';
+
+const websites = createSlice({
+  name: 'user',
+  initialState: {},
+  reducers: {
+    updateWebsites(state, action) {
+      state = action.payload;
+      return state;
+    },
+  },
+});
+
+export const { updateWebsites } = websites.actions;
+
+export default websites.reducer;
+
+export function setDateRange(websiteId, dateRange) {
+  return (dispatch, getState) => {
+    const state = getState();
+    let { websites = {} } = state;
+
+    websites = produce(websites, draft => {
+      if (!draft[websiteId]) {
+        draft[websiteId] = {};
+      }
+      dateRange.modified = Date.now();
+      draft[websiteId].dateRange = dateRange;
+    });
+
+    return dispatch(updateWebsites(websites));
+  };
+}

redux/reducers.js

@@ -1,4 +1,5 @@
 import { combineReducers } from 'redux';
 import user from './actions/user';
+import websites from './actions/websites';
 
-export default combineReducers({ user });
+export default combineReducers({ user, websites });