fetch/set current hike shouldn't pass state around

common/app/routes/Hikes/components/Map.jsx

@@ -8,14 +8,13 @@ export default contain(
   {
     store: 'hikesStore',
     fetchAction: 'hikesActions.fetchHikes',
-    getPayload: (props) => ({ isPrimed: props.isPrimed })
+    getPayload: ({ hikes }) => ({ isPrimed: (hikes && !!hikes.length) })
   },
   stampit(React, {
     displayName: 'HikesMap',
 
     propTypes: {
-      hikes: PropTypes.array,
-      isPrimed: PropTypes.bool
+      hikes: PropTypes.array
     },
 
     render() {

common/app/routes/Hikes/flux/Actions.js

@@ -1,4 +1,3 @@
-import { helpers } from 'rx';
 import { Actions } from 'thundercats';
 import assign from 'object.assign';
 import debugFactory from 'debug';
@@ -13,18 +12,7 @@ export default Actions({
   // start fetching hikes
   fetchHikes: null,
   // set hikes on store
-  setHikes(hikes) {
-    return {
-      currentHike: hikes[0],
-      hikes,
-      isPrimed: true
-    };
-  },
-
-
-  reEmit() {
-    return helpers.identity;
-  },
+  setHikes: null,
 
   fetchCurrentHike: null,
   setCurrentHike: null
@@ -35,13 +23,26 @@ export default Actions({
     instance.fetchHikes.subscribe(
       ({ isPrimed }) => {
         if (isPrimed) {
-          return instance.reEmit();
+          return instance.setHikes({
+            transformer: (oldState) => {
+              const { hikes } = oldState;
+              const newState = {
+                currentHike: (oldState.currentHike || hikes[0] || {})
+              };
+              return assign({}, oldState, newState);
+            }
+          });
         }
         service.read('hikes', null, null, (err, hikes) => {
           if (err) {
             debug('an error occurred fetching hikes', err);
           }
-          instance.setHikes(hikes);
+          instance.setHikes({
+            set: {
+              hikes: hikes,
+              currentHike: hikes[0] || {}
+            }
+          });
         });
       }
     );

common/app/routes/Hikes/flux/Store.js

@@ -1,9 +1,8 @@
 import { Store } from 'thundercats';
 
-const { fromMany, setter, transformer } = Store;
+const { fromMany } = Store;
 const initialValue = {
   hikes: [],
-  isPrimed: false,
   currentHike: {}
 };
 
@@ -13,15 +12,9 @@ export default Store(initialValue)
     const [cat] = args;
     let {
       setHikes,
-      setCurrentHike,
-      reEmit
+      setCurrentHike
     } = cat.getActions('hikesActions');
-    instance.register(
-      fromMany(
-        setter(setHikes),
-        setCurrentHike,
-        transformer(reEmit)
-      )
-    );
+    instance.register(fromMany(setHikes, setCurrentHike));
+
     return instance;
   });