redux store of builder

src/reducers/index.js

@@ -1,8 +1,10 @@
 import { combineReducers } from 'redux';
 import workspaceReducer from './workspaceReducer';
 import tutorialReducer from './tutorialReducer';
+import tutorialBuilderReducer from './tutorialBuilderReducer';
 
 export default combineReducers({
   workspace: workspaceReducer,
-  tutorial: tutorialReducer
+  tutorial: tutorialReducer,
+  builder: tutorialBuilderReducer
 });

src/reducers/tutorialBuilderReducer.js

@@ -0,0 +1,48 @@
+import { BUILDER_CHANGE, BUILDER_TITLE, BUILDER_ID, BUILDER_ADD_STEP, BUILDER_DELETE_STEP, BUILDER_CHANGE_STEP,BUILDER_CHANGE_ORDER, BUILDER_DELETE_PROPERTY } from '../actions/types';
+
+const initialState = {
+  change: 0,
+  title: '',
+  id: 0,
+  steps: [
+    {
+      id: 1,
+      type: 'instruction',
+      headline: '',
+      text: '',
+      hardware: [],
+      requirements: []
+    }
+  ]
+};
+
+export default function(state = initialState, action){
+  switch(action.type){
+    case BUILDER_CHANGE:
+      return {
+        ...state,
+        change: state.change += 1
+      };
+    case BUILDER_TITLE:
+      return {
+        ...state,
+        title: action.payload
+      };
+    case BUILDER_ID:
+      return {
+        ...state,
+        id: action.payload
+      };
+    case BUILDER_ADD_STEP:
+    case BUILDER_DELETE_STEP:
+    case BUILDER_CHANGE_STEP:
+    case BUILDER_CHANGE_ORDER:
+    case BUILDER_DELETE_PROPERTY:
+      return {
+        ...state,
+        steps: action.payload
+      };
+    default:
+      return state;
+  }
+}