handling sensors with redux

client/js/redux/reducers/app.js

@@ -0,0 +1,44 @@
+//import typs
+import * as types from '../constants/app';
+
+//defaults -
+const defaultState = {
+    preview: {
+        posts: []
+    },
+    post: "",
+    fetched: false,
+    fetching: false,
+    postLimit: 10
+};
+
+//default reducer
+export default function app(state = defaultState, action) {
+    //every reducer gets called when an action is called - we check for the type to modify our state accordingly
+    switch (action.type) {
+        case types.INIT_PREVIEW:
+            return Object.assign({}, state, {
+                preview: Object.assign({}, state.preview, action.posts),
+                fetched: true,
+                fetching: false
+            });
+        case types.LOAD_POST:
+            return Object.assign({}, state, {
+                post: action.post,
+                fetched: true,
+                fetching: false
+            });
+        case types.FETCHING:
+            return Object.assign({}, state, {
+                fetched: false,
+                fetching: true
+            });
+        case types.INCREASE_POST_LIMIT:
+            return Object.assign({}, state, {
+                postLimit: state.postLimit + 10
+            });
+    }
+
+    //return present state if no actions get called
+    return state;
+}