Practice Session #3

package.json

@@ -12,6 +12,8 @@
     "@types/react-dom": "18.0.6",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
+    "react-router": "^6.4.0",
+    "react-router-dom": "^6.4.0",
     "react-scripts": "5.0.1",
     "typescript": "4.7.4",
     "web-vitals": "2.1.4"

src/App.tsx

@@ -1,7 +1,21 @@
 import "./App.css";
+import { BrowserRouter, Routes, Route, Navigate } from "react-router-dom";
+import TodoList from "./containers/TodoList/TodoList";
+import NewTodo from "./containers/TodoList/NewTodo/NewTodo";
+import TodoDetail from "./components/TodoDetail/TodoDetail";
 
 function App() {
-  return <div className="App"></div>;
+  return <div className="App">
+    <BrowserRouter>
+      <Routes>
+        <Route path="/todos" element={<TodoList title={"My TODOs!"} />} />
+        <Route path="/todos/:id" element={<TodoDetail />} />
+        <Route path="/new-todo" element={<NewTodo />} />
+        <Route path="/" element={<Navigate replace to={"/todos"} />} />
+        <Route path="*" element={<h1>Not Found</h1>} />
+      </Routes>
+    </BrowserRouter>
+  </div>;
 }
 
-export default App;
+export default App;

src/components/Todo/Todo.tsx

@@ -1 +1,18 @@
-export {};
+import "./Todo.css"
+
+interface IProps {
+    title: string;
+    clicked?: React.MouseEventHandler<HTMLDivElement>; // Defined by React
+    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>
+    );
+};
+export default Todo;

src/components/TodoDetail/TodoDetail.tsx

@@ -1 +1,23 @@
-export {};
+import "./TodoDetail.css";
+
+type Props = {
+    title: string;
+    content: string;
+}
+
+const TodoDetail = (props: Props) => {
+    return (
+        <div className="TodoDetail">
+            <div className="row">
+                <div className="left">Name:</div>
+                <div className="right">{props.title}</div>
+            </div>
+            <div className="row">
+                <div className="left">Content:</div>
+                <div className="right">{props.content}</div>
+            </div>
+        </div>
+    );
+};
+
+export default TodoDetail;

src/containers/TodoList/NewTodo/NewTodo.tsx

@@ -1 +1,30 @@
-export {};
+import { useState } from "react";
+import { Navigate } from "react-router-dom";
+import "./NewTodo.css";
+
+export default function NewTodo() {
+    const [title, setTitle] = useState<string>("");
+    const [content, setContent] = useState<string>("");
+    const [submitted, setSubmitted] = useState<boolean>(false);
+
+    const postTodoHandler = () => {
+        const data = {title: title, content: content};
+        alert("Submitted\n" + data.title + "\n" + data.content);
+        setSubmitted(true);
+    };
+
+    if (submitted) {
+        return <Navigate to="/todos" />;
+    } else {
+        return (
+            <div className="NewTodo">
+                <h1>Add a Todo</h1>
+                <label>Title</label>
+                <input type="text" value={title} onChange={(event) => setTitle(event.target.value)}/>
+                <label>Content</label>
+                <textarea rows={4} value={content} onChange={(event) => setContent(event.target.value)}/>
+                <button onClick={() => postTodoHandler()}>Submit</button>
+            </div>
+        );
+    }
+}

src/containers/TodoList/TodoList.tsx

@@ -1 +1,53 @@
-export {};
+import {useState, useMemo} from "react";
+import {Link, NavLink} from "react-router-dom";
+import Todo from '../../components/Todo/Todo';
+import TodoDetail from "../../components/TodoDetail/TodoDetail";
+import NewTodo from "./NewTodo/NewTodo";
+import "./TodoList.css"
+
+interface IProps {
+    title: string;
+}
+
+type TodoType = {
+    id: number;
+    title: string;
+    content: string;
+    done: boolean;
+};
+
+
+export default function TodoList(props: IProps) {
+    const {title} = props;
+    const [todos, setTodos] = useState<TodoType[]>([
+        {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}
+    ]);
+    const [selectedTodo, setSelectedTodo] = useState<TodoType | null>(null);
+    const clickTodoHandler = (td: TodoType) => {
+        if (selectedTodo === td) {
+            setSelectedTodo(null);
+        } else{
+            setSelectedTodo(td);
+        }
+    };
+    const todoDetail = useMemo(() => {
+        return selectedTodo ? (
+            <TodoDetail title={selectedTodo.title} content={selectedTodo.content} />
+        ) : null;
+    }, [selectedTodo]);
+
+    return (
+        <div className="TodoList">
+            <div className="title">{title}</div>
+            <div className="todos">
+                {todos.map((td) => {
+                    return <Todo key={td.id} title={td.title} done={td.done} clicked={() => clickTodoHandler(td)}/>
+                })}
+                {todoDetail}
+                <NavLink to="/new-todo">New Todo</NavLink>
+            </div>
+        </div>
+    );
+}