Practice Session4

package.json

@@ -1,20 +1,25 @@
 {
-  "name": "swpp-p3-react-tutorial",
+  "name": "todo",
   "version": "0.1.0",
-  "private": true,
+  "private": false,
+  "proxy": "http://127.0.0.1:8000",
   "dependencies": {
+    "@reduxjs/toolkit": "^1.8.5",
     "@testing-library/jest-dom": "5.16.5",
     "@testing-library/react": "13.3.0",
     "@testing-library/user-event": "13.5.0",
     "@types/jest": "27.5.2",
     "@types/node": "16.11.56",
     "@types/react": "18.0.17",
     "@types/react-dom": "18.0.6",
+    "axios": "^0.27.2",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
+    "react-redux": "^8.0.4",
     "react-router": "6.3.0",
     "react-router-dom": "6.3.0",
     "react-scripts": "5.0.1",
+    "redux": "^4.2.0",
     "typescript": "4.7.4",
     "web-vitals": "2.1.4"
   },

src/components/Todo/Todo.tsx

@@ -2,18 +2,23 @@ import "./Todo.css";
 
 interface IProps {
   title: string;
-  clicked?: React.MouseEventHandler<HTMLDivElement>; // Defined by React
+  clickDetail?: React.MouseEventHandler<HTMLDivElement>; // Defined by React
+  clickDone?: () => void;
+  clickDelete?: () => void;
   done: boolean;
 }
 
+
 const Todo = (props: IProps) => {
   return (
-    <div className="Todo">
-      <div className={`text ${props.done && "done"}`} onClick={props.clicked}>
-        {props.title}
-      </div>
-      {props.done && <div className="done-mark">&#x2713;</div>}
-    </div>
-  );
+   <div className="Todo">
+     <div className={`text ${props.done && "done"}`} onClick={props.clickDetail} >
+       {props.title}
+     </div>
+     {props.done && <div className="done-mark">&#x2713;</div>}
+     <button onClick={props.clickDone}>{(props.done) ? 'Undone' : 'Done'}</button>
+     <button onClick={props.clickDelete}>Delete</button>
+   </div>
+ );
 };
 export default Todo;

src/components/TodoDetail/TodoDetail.tsx

@@ -1,3 +1,8 @@
+import { useEffect } from "react";
+import { useDispatch, useSelector } from "react-redux";
+import { useParams } from "react-router";
+import { AppDispatch } from "../../store";
+import { selectTodo, todoActions, fetchTodo } from "../../store/slices/todo";
 import "./TodoDetail.css";
 
 type Props = {
@@ -6,15 +11,22 @@ type Props = {
 };
 
 const TodoDetail = (props: Props) => {
+  const { id } = useParams();
+  const dispatch = useDispatch();
+  const todoState = useSelector(selectTodo);
+  useEffect(() => {
+    dispatch(fetchTodo(Number(id)));
+  }, [id]);
+
   return (
     <div className="TodoDetail">
       <div className="row">
         <div className="left">Name:</div>
-        <div className="right">{props.title}</div>
+        <div className="right">{todoState.selectedTodo?.title}</div>
       </div>
       <div className="row">
         <div className="left">Content:</div>
-        <div className="right">{props.content}</div>
+        <div className="right">{todoState.selectedTodo?.title}</div>
       </div>
     </div>
   );

src/containers/TodoList/NewTodo/NewTodo.tsx

@@ -2,11 +2,18 @@ import { useState } from "react";
 import { Navigate } from "react-router-dom";
 // import { useNavigate } from "react-router-dom";
 import "./NewTodo.css";
+import { useDispatch } from "react-redux";
+import { todoActions } from "../../../store/slices/todo";
+import { AppDispatch } from "../../../store";
+import { postTodo } from "../../../store/slices/todo";
+import "./NewTodo.css";
+
 
 export default function NewTodo() {
   const [title, setTitle] = useState<string>("");
   const [content, setContent] = useState<string>("");
   const [submitted, setSubmitted] = useState<boolean>(false);
+  const dispatch = useDispatch()
 
   // const navigate = useNavigate()
   // const postTodoHandler = () => {
@@ -16,11 +23,16 @@ export default function NewTodo() {
   //   navigate('/todos')
   // };
 
-  const postTodoHandler = () => {
+  const postTodoHandler = async () => {
     const data = { title: title, content: content };
-    alert("Submitted\n" + data.title + "\n" + data.content);
-    setSubmitted(true);
-  };
+    const result = await dispatch(postTodo(data));
+    if (result.payload) {
+      setSubmitted(true);
+    } else {
+      alert("Error on post Todo");
+    }
+ };
+
 
   if (submitted) {
     return <Navigate to="/todos" />;

src/containers/TodoList/TodoList.tsx

@@ -1,8 +1,14 @@
+import { useEffect } from "react";
 import { useMemo, useState } from "react";
-import { NavLink } from "react-router-dom";
+import { NavLink, useNavigate } from "react-router-dom";
 import Todo from "../../components/Todo/Todo";
 import TodoDetail from "../../components/TodoDetail/TodoDetail";
 import "./TodoList.css";
+import { useDispatch, useSelector } from "react-redux";
+import { fetchTodos, selectTodo, todoActions, deleteTodo, toggleDone } from "../../store/slices/todo";
+import axios from 'axios';
+import { AppDispatch } from "../../store";
+
 
 interface IProps {
   title: string;
@@ -13,6 +19,14 @@ type TodoType = { id: number; title: string; content: string; done: boolean };
 export default function TodoList(props: IProps) {
   const { title } = props;
   const [selectedTodo, setSelectedTodo] = useState<TodoType | null>(null);
+  const todoState = useSelector(selectTodo);
+  const navigate = useNavigate()
+  const dispatch = useDispatch<AppDispatch>();
+
+  useEffect(() => {
+    dispatch(fetchTodos())
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  },[]);
 
   const [todos, setTodos] = useState<TodoType[]>([
     { id: 1, title: "SWPP", content: "take swpp class", done: true },
@@ -21,13 +35,10 @@ export default function TodoList(props: IProps) {
   ]);
 
   const clickTodoHandler = (td: TodoType) => {
-    if (selectedTodo === td) {
-      setSelectedTodo(null);
-    } else {
-      setSelectedTodo(td);
-    }
+    navigate('/todos/' + td.id)
   };
 
+
   const todoDetail = useMemo(() => {
     return selectedTodo ? (
       <TodoDetail title={selectedTodo.title} content={selectedTodo.content} />
@@ -38,13 +49,14 @@ export default function TodoList(props: IProps) {
     <div className="TodoList">
       <div className="title">{title}</div>
       <div className="todos">
-        {todos.map((td) => {
+        {todoState.todos.map((td) => {
           return (
             <Todo
-              key={`${td.id}_todo`}
               title={td.title}
               done={td.done}
-              clicked={() => clickTodoHandler(td)}
+              clickDetail={() => clickTodoHandler(td)}
+              clickDone={() => dispatch(toggleDone(td.id))}
+              clickDelete={() => dispatch(deleteTodo(td.id))}
             />
           );
         })}

src/index.tsx

@@ -2,12 +2,14 @@ import React from 'react';
 import ReactDOM from 'react-dom/client';
 import './index.css';
 import App from './App';
+import { Provider } from "react-redux";
+import { store } from "./store";
 
 const root = ReactDOM.createRoot(
   document.getElementById('root') as HTMLElement
 );
 root.render(
   <React.StrictMode>
-    <App />
+    <Provider store={store}><App /></Provider>
   </React.StrictMode>
 );

src/store/index.ts

@@ -0,0 +1,10 @@
+import { configureStore } from "@reduxjs/toolkit";
+import todoReducer from "./slices/todo";
+export const store = configureStore({
+    reducer: {
+        todo: todoReducer,
+    },
+});
+export type RootState = ReturnType<typeof store.getState>;
+export type AppDispatch = typeof store.dispatch;
+

src/store/slices/todo.ts

@@ -0,0 +1,108 @@
+import { createAsyncThunk, createSlice, PayloadAction } from "@reduxjs/toolkit";
+import { RootState } from "..";
+import axios from 'axios';
+
+export interface TodoType { id: number; title: string; content: string; done: boolean; }
+export interface TodoState { todos: TodoType[]; selectedTodo: TodoType | null; }
+const initialState: TodoState = {
+    todos: [
+        { id: 1, title: "SWPP", content: "take swpp class", done: true },
+        { id: 2, title: "Movie", content: "watch movie", done: false },
+        { id: 3, title: "Dinner", content: "eat dinner", done: false },
+    ], selectedTodo: null,
+};
+
+export const postTodo = createAsyncThunk(
+    "todo/postTodo",
+    async (td: Pick<TodoType, "title" | "content">, { dispatch }) => {
+        const response = await axios.post("/api/todo/", td);
+        dispatch(todoActions.addTodo(response.data));
+    }
+);
+
+export const deleteTodo = createAsyncThunk(
+    "todo/deleteTodo",
+    async (id: TodoType["id"], { dispatch }) => {
+        await axios.delete(`/api/todo/${id}/`);
+        dispatch(todoActions.deleteTodo({ targetId: id }));
+    }
+);
+export const fetchTodo = createAsyncThunk( "todo/fetchTodo",
+    async (id: TodoType["id"], { dispatch }) => {
+    const response = await axios.get(`/api/todo/${id}/`);
+        return response.data ?? null;
+    }
+);
+
+export const toggleDone = createAsyncThunk(
+    "todo/toggleDone",
+    async (id: TodoType["id"], { dispatch }) => {
+        await axios.put(`/api/todo/${id}/`);
+        dispatch(todoActions.toggleDone({ targetId: id }));
+    }
+);
+
+
+
+export const todoSlice = createSlice({
+    name: "todo",
+    initialState,
+    reducers: {
+        getAll: (state, action: PayloadAction<{ todos: TodoType[] }>) => {},
+        getTodo: (state, action: PayloadAction<{ targetId: number }>) => {
+            const target = state.todos.find((td) => td.id === action.payload.targetId);
+            state.selectedTodo = target ?? null
+        },
+        toggleDone: (state, action: PayloadAction<{ targetId: number }>) => {
+            const todo = state.todos.find(
+                (value) => value.id === action.payload.targetId
+            );
+            if (todo) {
+                todo.done = !todo.done;
+            }
+        },
+        deleteTodo: (state, action: PayloadAction<{ targetId: number }>) => {
+            const deleted = state.todos.filter((todo) => {
+                return todo.id !== action.payload.targetId;
+            });
+            state.todos = deleted;
+        },
+        addTodo: (
+            state,
+            action: PayloadAction<{ title: string; content: string }>
+        ) => {
+            const newTodo = {
+                id: state.todos[state.todos.length - 1].id + 1, // temporary
+                title: action.payload.title,
+                content: action.payload.content,
+                done: false,
+            };
+            state.todos.push(newTodo);
+        },
+    },
+    extraReducers: (builder) => {
+        // Add reducers for additional action types here, and handle loading state as needed
+        builder.addCase(fetchTodos.fulfilled, (state, action) => {
+            state.todos = action.payload;
+        });
+        builder.addCase(postTodo.rejected, (_state, action) =>{
+            console.error(action.error);
+        });
+        builder.addCase(fetchTodo.fulfilled, (state, action) => {
+            state.selectedTodo = action.payload;
+        });
+    },
+});
+
+export const fetchTodos = createAsyncThunk(
+    "todo/fetchTodos",
+    async () => {
+        const response = await
+        axios.get<TodoType[]>("/api/todo/");
+        return response.data;
+    }
+);
+
+export const todoActions = todoSlice.actions;
+export const selectTodo = (state: RootState) => state.todo;
+export default todoSlice.reducer;