Merge branch 'tutorial' into assessment

src/actions/tutorialActions.js

@@ -0,0 +1,17 @@
+import { TUTORIAL_SUCCESS, TUTORIAL_ERROR, TUTORIAL_CHANGE } from './types';
+
+export const tutorialChange = () => (dispatch) => {
+  dispatch({
+    type: TUTORIAL_CHANGE
+  });
+};
+
+export const tutorialCheck = (id, status) => (dispatch, getState) => {
+  var tutorialsStatus = getState().tutorial.status;
+  tutorialsStatus[id] = {...tutorialsStatus[id], status: status};
+  dispatch({
+    type: status === 'success' ? TUTORIAL_SUCCESS : TUTORIAL_ERROR,
+    payload: tutorialsStatus
+  });
+  dispatch(tutorialChange());
+};

src/reducers/tutorialReducer.js

@@ -0,0 +1,30 @@
+import { TUTORIAL_SUCCESS, TUTORIAL_ERROR, TUTORIAL_CHANGE } from '../actions/types';
+
+import { tutorials } from '../components/Tutorial/tutorials';
+
+const initialState = {
+  status: window.localStorage.getItem('tutorial') ?
+            JSON.parse(window.localStorage.getItem('tutorial'))
+          : new Array(tutorials.length).fill({}),
+  change: 0
+};
+
+export default function(state = initialState, action){
+  switch(action.type){
+    case TUTORIAL_SUCCESS:
+    case TUTORIAL_ERROR:
+      // update locale storage - sync with redux store
+      window.localStorage.setItem('tutorial', JSON.stringify(action.payload));
+      return {
+        ...state,
+        status: action.payload
+      };
+    case TUTORIAL_CHANGE:
+      return {
+        ...state,
+        change: state.change += 1
+      }
+    default:
+      return state;
+  }
+}