Improve type checks

app/javascript/actions/changePostBoard.ts

@@ -5,7 +5,7 @@ import { State } from '../reducers/rootReducer';
 export const CHANGE_POST_BOARD_SUCCESS = 'CHANGE_POST_BOARD_SUCCESS';
 export interface ChangePostBoardSuccessAction {
   type: typeof CHANGE_POST_BOARD_SUCCESS;
-  newBoardId;
+  newBoardId: number;
 }
 
 const changePostBoardSuccess = (newBoardId: number): ChangePostBoardSuccessAction => ({

app/javascript/actions/changePostStatus.ts

@@ -5,7 +5,7 @@ import { State } from '../reducers/rootReducer';
 export const CHANGE_POST_STATUS_SUCCESS = 'CHANGE_POST_STATUS_SUCCESS';
 export interface ChangePostStatusSuccessAction {
   type: typeof CHANGE_POST_STATUS_SUCCESS;
-  newPostStatusId;
+  newPostStatusId: number;
 }
 
 const changePostStatusSuccess = (newPostStatusId: number): ChangePostStatusSuccessAction => ({

app/javascript/actions/handleCommentReplies.ts

@@ -11,12 +11,12 @@ interface SetCommentReplyBodyAction {
   body: string;
 }
 
-export const toggleCommentReply = (commentId): ToggleCommentReplyAction => ({
+export const toggleCommentReply = (commentId: number): ToggleCommentReplyAction => ({
   type: TOGGLE_COMMENT_REPLY,
   commentId,
 });
 
-export const setCommentReplyBody = (commentId, body): SetCommentReplyBodyAction => ({
+export const setCommentReplyBody = (commentId: number, body: string): SetCommentReplyBodyAction => ({
   type: SET_COMMENT_REPLY_BODY,
   commentId,
   body,

app/javascript/actions/requestComment.ts

@@ -1,7 +1,7 @@
 import ICommentJSON from '../interfaces/json/IComment';
 
 export const COMMENT_REQUEST_SUCCESS = 'COMMENT_REQUEST_SUCCESS';
-interface CommentRequestSuccessAction {
+export interface CommentRequestSuccessAction {
   type: typeof COMMENT_REQUEST_SUCCESS;
   comment: ICommentJSON;
 }

app/javascript/actions/submitComment.ts

@@ -28,7 +28,7 @@ export type CommentSubmitActionTypes =
   CommentSubmitSuccessAction |
   CommentSubmitFailureAction;
 
-const commentSubmitStart = (parentId): CommentSubmitStartAction => ({
+const commentSubmitStart = (parentId: number): CommentSubmitStartAction => ({
   type: COMMENT_SUBMIT_START,
   parentId,
 });
@@ -40,17 +40,17 @@ const commentSubmitSuccess = (
   comment: commentJSON,
 });
 
-const commentSubmitFailure = (parentId, error): CommentSubmitFailureAction => ({
+const commentSubmitFailure = (parentId: number, error: string): CommentSubmitFailureAction => ({
   type: COMMENT_SUBMIT_FAILURE,
   parentId,
   error,
 });
 
 export const submitComment = (
-  postId,
-  body,
-  parentId,
-  authenticityToken,
+  postId: number,
+  body: string,
+  parentId: number,
+  authenticityToken: string,
 ): ThunkAction<void, State, null, Action<string>> => async (dispatch) => {
   dispatch(commentSubmitStart(parentId));
 

app/javascript/components/Board/index.tsx

@@ -6,6 +6,9 @@ import createStoreHelper from '../../helpers/createStore';
 
 import IBoard from '../../interfaces/IBoard';
 
+import { Store } from 'redux';
+import { State } from '../../reducers/rootReducer';
+
 interface Props {
   board: IBoard;
   isLoggedIn: boolean;
@@ -13,7 +16,7 @@ interface Props {
 }
 
 class BoardRoot extends React.Component<Props> {
-  store: any;
+  store: Store<State, any>;
 
   constructor(props: Props) {
     super(props);

app/javascript/components/Post/index.tsx

@@ -8,6 +8,9 @@ import Post from '../../containers/Post';
 import IBoard from '../../interfaces/IBoard';
 import IPostStatus from '../../interfaces/IPostStatus';
 
+import { Store } from 'redux';
+import { State } from '../../reducers/rootReducer';
+
 interface Props {
   postId: number;
   boards: Array<IBoard>;
@@ -18,7 +21,7 @@ interface Props {
 }
 
 class PostRoot extends React.Component<Props> {
-  store: any;
+  store: Store<State, any>;
 
   constructor(props: Props) {
     super(props);

app/javascript/containers/Board.tsx

@@ -16,7 +16,7 @@ const mapStateToProps = (state: State) => ({
   postStatuses: state.postStatuses,
 });
 
-const mapDispatchToProps = (dispatch) => ({
+const mapDispatchToProps = (dispatch: any) => ({
   requestPosts(boardId: number, page: number = 1, searchQuery: string = '', postStatusId: number = null) {
     dispatch(requestPosts(boardId, page, searchQuery, postStatusId));
   },

app/javascript/reducers/commentReducer.ts

@@ -1,4 +1,5 @@
 import {
+  CommentRequestSuccessAction,
   COMMENT_REQUEST_SUCCESS,
 } from '../actions/requestComment';
 
@@ -14,7 +15,7 @@ const initialState: IComment = {
 
 const commentReducer = (
   state = initialState,
-  action,
+  action: CommentRequestSuccessAction,
 ): IComment => {
   switch (action.type) {
     case COMMENT_REQUEST_SUCCESS:

app/javascript/reducers/commentRepliesReducer.ts

@@ -1,13 +1,16 @@
 import {
+  CommentRequestSuccessAction,
   COMMENT_REQUEST_SUCCESS,
 } from '../actions/requestComment';
 
 import {
+  HandleCommentRepliesType,
   TOGGLE_COMMENT_REPLY,
   SET_COMMENT_REPLY_BODY,
 } from '../actions/handleCommentReplies';
 
 import {
+  CommentSubmitActionTypes,
   COMMENT_SUBMIT_START,
   COMMENT_SUBMIT_SUCCESS,
   COMMENT_SUBMIT_FAILURE,
@@ -31,7 +34,10 @@ const initialState: CommentRepliesState = {
 
 const commentRepliesReducer = (
   state = initialState,
-  action,
+  action:
+    CommentRequestSuccessAction |
+    HandleCommentRepliesType |
+    CommentSubmitActionTypes,
 ) => {
   switch (action.type) {
     case COMMENT_REQUEST_SUCCESS:

app/javascript/reducers/commentsReducer.ts

@@ -1,4 +1,5 @@
 import {
+  CommentsRequestActionTypes,
   COMMENTS_REQUEST_START,
   COMMENTS_REQUEST_SUCCESS,
   COMMENTS_REQUEST_FAILURE,
@@ -7,11 +8,13 @@ import {
 import { commentRequestSuccess } from '../actions/requestComment';
 
 import {
+  HandleCommentRepliesType,
   TOGGLE_COMMENT_REPLY,
   SET_COMMENT_REPLY_BODY,
 } from '../actions/handleCommentReplies';
 
 import {
+  CommentSubmitActionTypes,
   COMMENT_SUBMIT_START,
   COMMENT_SUBMIT_SUCCESS,
   COMMENT_SUBMIT_FAILURE,
@@ -40,7 +43,10 @@ const initialState: CommentsState = {
 
 const commentsReducer = (
   state = initialState,
-  action,
+  action:
+    CommentsRequestActionTypes |
+    HandleCommentRepliesType |
+    CommentSubmitActionTypes
 ): CommentsState => {
   switch (action.type) {
     case COMMENTS_REQUEST_START:
@@ -55,7 +61,7 @@ const commentsReducer = (
         items: action.comments.map(
           (comment: ICommentJSON) => commentReducer(undefined, commentRequestSuccess(comment))
         ),
-        replies: [commentRepliesReducer(undefined, {type: 'COMMENT_REQUEST_SUCCESS', comment: { id: -1 } }),
+        replies: [commentRepliesReducer(undefined, {type: 'COMMENT_REQUEST_SUCCESS', comment: { id: -1 } as ICommentJSON }),
           ...action.comments.map(
             (comment: ICommentJSON) => commentRepliesReducer(undefined, commentRequestSuccess(comment))
         )],

app/javascript/reducers/currentPostReducer.ts

@@ -50,10 +50,10 @@ interface CurrentPostState {
 }
 
 const initialState: CurrentPostState = {
-  item: postReducer(undefined, {}),
+  item: postReducer(undefined, {} as PostRequestActionTypes),
   isLoading: false,
   error: '',
-  comments: commentsReducer(undefined, {}),
+  comments: commentsReducer(undefined, {} as CommentsRequestActionTypes),
 };
 
 const currentPostReducer = (

app/javascript/reducers/postReducer.ts

@@ -1,12 +1,15 @@
 import {
+  PostRequestActionTypes,
   POST_REQUEST_SUCCESS,
 } from '../actions/requestPost';
 
 import {
+  ChangePostBoardSuccessAction,
   CHANGE_POST_BOARD_SUCCESS,
 } from '../actions/changePostBoard';
 
 import {
+  ChangePostStatusSuccessAction,
   CHANGE_POST_STATUS_SUCCESS,
 } from '../actions/changePostStatus';
 
@@ -25,7 +28,10 @@ const initialState: IPost = {
 
 const postReducer = (
   state = initialState,
-  action,
+  action:
+    PostRequestActionTypes |
+    ChangePostBoardSuccessAction |
+    ChangePostStatusSuccessAction,
 ): IPost => {
   switch (action.type) {
     case POST_REQUEST_SUCCESS:

app/javascript/reducers/postsReducer.ts

@@ -37,10 +37,7 @@ const initialState: PostsState = {
   haveMore: true,
   areLoading: false,
   error: '',
-  filters: { // improve
-    searchQuery: '',
-    postStatusId: null,
-  },
+  filters: filtersReducer(undefined, {} as ChangeFiltersActionTypes),
 };
 
 const postsReducer = (