Add basic version of post show page

app/javascript/reducers/postReducer.ts

@@ -1,3 +1,13 @@
+import {
+  POST_REQUEST_START,
+  POST_REQUEST_SUCCESS,
+  POST_REQUEST_FAILURE,
+} from '../actions/requestPost';
+
+import {
+  CHANGE_POST_STATUS_SUCCESS,
+} from '../actions/changePostStatus';
+
 import IPost from '../interfaces/IPost';
 
 const initialState: IPost = {
@@ -15,7 +25,7 @@ const postReducer = (
   action,
 ): IPost => {
   switch (action.type) {
-    case 'CONVERT':
+    case POST_REQUEST_SUCCESS:
       return {
         id: action.post.id,
         title: action.post.title,
@@ -26,6 +36,14 @@ const postReducer = (
         createdAt: action.post.created_at,
       };
 
+    case CHANGE_POST_STATUS_SUCCESS:
+      return {
+        ...state,
+        postStatusId: action.newPostStatusId,
+      };
+
+    case POST_REQUEST_START:
+    case POST_REQUEST_FAILURE:
     default:
       return state;
   }

app/javascript/reducers/postsReducer.ts

@@ -12,6 +12,8 @@ import {
   POSTS_REQUEST_FAILURE,
 } from '../actions/requestPosts';
 
+import { postRequestSuccess } from '../actions/requestPost';
+
 import {
   ChangeFiltersActionTypes,
   SET_SEARCH_FILTER,
@@ -54,9 +56,9 @@ const postsReducer = (
       return {
         ...state,
         items: action.page === 1 ?
-          action.posts.map(post => postReducer(undefined, {type: 'CONVERT', post})) //improve
+          action.posts.map(post => postReducer(undefined, postRequestSuccess(post)))
           :
-          [...state.items, ...action.posts.map(post => postReducer(undefined, {type: 'CONVERT', post}))],
+          [...state.items, ...action.posts.map(post => postReducer(undefined, postRequestSuccess(post)))],
         page: action.page,
         haveMore: action.posts.length === 15,
         areLoading: false,

app/javascript/reducers/rootReducer.ts

@@ -2,10 +2,12 @@ import { combineReducers } from 'redux';
 
 import postsReducer from './postsReducer';
 import postStatusesReducer from './postStatusesReducer';
+import postReducer from './postReducer';
 
 const rootReducer = combineReducers({
   posts: postsReducer,
   postStatuses: postStatusesReducer,
+  currentPost: postReducer,
 });
 
 export type State = ReturnType<typeof rootReducer>