add task solution

src/App.tsx

@@ -1,61 +1,122 @@
 import './App.scss';
 
-// import usersFromServer from './api/users';
-// import todosFromServer from './api/todos';
+import usersFromServer from './api/users';
+import todosFromServer from './api/todos';
+import { UserInfo } from './components/UserInfo';
+import { TodoList } from './components/TodoList';
+import { useState } from 'react';
+
+type Todo = {
+  id: number;
+  title: string;
+  userId: number;
+  completed: boolean;
+};
+
+export const App = ({}) => {
+  const [todoList, setTodoList] = useState([...todosFromServer]);
+  const [title, setTitle] = useState('');
+  const [userValue, setUserValue] = useState(0);
+  const [inputError, setInputError] = useState('');
+  const [selectError, setSelectError] = useState('');
+
+  function getUserById(userId: number) {
+    return usersFromServer.find(user => user.id === userId) || null;
+  }
+
+  const todos = todoList.map(todo => ({
+    ...todo,
+    user: getUserById(todo.userId),
+  }));
+
+  function getNewId(listOfTodos: Todo[]) {
+    const maxId = Math.max(...listOfTodos.map(todo => todo.id));
+
+    return maxId + 1;
+  }
+
+  const handleInputError = (event: React.ChangeEvent<HTMLInputElement>) => {
+    event.preventDefault();
+    setTitle(event.target.value);
+    setInputError('');
+  };
+
+  const handleSelectError = (event: React.ChangeEvent<HTMLSelectElement>) => {
+    event.preventDefault();
+    setUserValue(+event.target.value);
+    setSelectError('');
+  };
+
+  const cleanForm = () => {
+    setTitle('');
+    setUserValue(0);
+    setInputError('');
+    setSelectError('');
+  };
+
+  const handleSubmit = (event: React.FormEvent) => {
+    event.preventDefault();
+
+    const todo: Todo = {
+      id: getNewId(todos),
+      title: title,
+      userId: userValue,
+      completed: false,
+    };
+
+    if (!title && !userValue) {
+      setInputError('Please enter a title');
+      setSelectError('Please choose a user');
+    } else if (!title) {
+      setInputError('Please enter a title');
+    } else if (!userValue) {
+      setSelectError('Please choose a user');
+    } else {
+      setTodoList([...todoList, todo]);
+      cleanForm();
+    }
+  };
 
-export const App = () => {
   return (
     <div className="App">
       <h1>Add todo form</h1>
 
-      <form action="/api/todos" method="POST">
+      <form action="/api/todos" method="POST" onSubmit={handleSubmit}>
         <div className="field">
-          <input type="text" data-cy="titleInput" />
-          <span className="error">Please enter a title</span>
+          <label htmlFor="titleInput">Title: </label>
+          <input
+            type="text"
+            data-cy="titleInput"
+            placeholder="Enter a title"
+            value={title}
+            onChange={handleInputError}
+          />
+          <span className="error">{inputError}</span>
         </div>
 
         <div className="field">
-          <select data-cy="userSelect">
-            <option value="0" disabled>
+          <label htmlFor="userSelect">User: </label>
+          <select
+            data-cy="userSelect"
+            value={userValue}
+            onChange={handleSelectError}
+          >
+            <option value={0} disabled>
               Choose a user
             </option>
+
+            <UserInfo users={usersFromServer} />
           </select>
 
-          <span className="error">Please choose a user</span>
+          <span className="error">{selectError}</span>
         </div>
 
         <button type="submit" data-cy="submitButton">
           Add
         </button>
       </form>
 
-      <section className="TodoList">
-        <article data-id="1" className="TodoInfo TodoInfo--completed">
-          <h2 className="TodoInfo__title">delectus aut autem</h2>
-
-          <a className="UserInfo" href="mailto:Sincere@april.biz">
-            Leanne Graham
-          </a>
-        </article>
-
-        <article data-id="15" className="TodoInfo TodoInfo--completed">
-          <h2 className="TodoInfo__title">delectus aut autem</h2>
-
-          <a className="UserInfo" href="mailto:Sincere@april.biz">
-            Leanne Graham
-          </a>
-        </article>
-
-        <article data-id="2" className="TodoInfo">
-          <h2 className="TodoInfo__title">
-            quis ut nam facilis et officia qui
-          </h2>
-
-          <a className="UserInfo" href="mailto:Julianne.OConner@kory.org">
-            Patricia Lebsack
-          </a>
-        </article>
-      </section>
+      <TodoList todos={todos} />
     </div>
   );
 };

src/components/TodoInfo/TodoInfo.tsx

@@ -1 +1,32 @@
-export const TodoInfo = () => {};
+import classNames from 'classnames';
+
+type TodoInfoProps = {
+  id: number;
+  title: string;
+  email: string;
+  name: string;
+  completed: boolean;
+};
+
+export const TodoInfo = ({
+  id,
+  title,
+  email,
+  name,
+  completed,
+}: TodoInfoProps) => {
+  return (
+    <article
+      data-id={id}
+      className={classNames('TodoInfo', {
+        'TodoInfo--completed': completed,
+      })}
+    >
+      <h2 className="TodoInfo__title">{title}</h2>
+
+      <a className="UserInfo" href={`mailto:${email}`}>
+        {name}
+      </a>
+    </article>
+  );
+};

src/components/TodoList/TodoList.tsx

@@ -1 +1,37 @@
-export const TodoList = () => {};
+import { TodoInfo } from '../TodoInfo';
+
+type Todo = {
+  id: number;
+  title: string;
+  completed: boolean;
+  userId: number;
+  user: {
+    id: number;
+    name: string;
+    username: string;
+    email: string;
+  } | null;
+};
+
+export const TodoList = ({ todos }: { todos: Todo[] }) => {
+  return (
+    <section className="TodoList">
+      {todos.map((todo: Todo) => {
+        if (!todo.user) {
+          return null;
+        }
+
+        return (
+          <TodoInfo
+            id={todo.id}
+            title={todo.title}
+            email={todo.user.email}
+            name={todo.user.name}
+            completed={todo.completed}
+            key={todo.id}
+          />
+        );
+      })}
+    </section>
+  );
+};

src/components/UserInfo/UserInfo.tsx

@@ -1 +1,20 @@
-export const UserInfo = () => {};
+type User = {
+  id: number;
+  name: string;
+  username: string;
+  email: string;
+};
+
+export const UserInfo = ({ users }: { users: User[] }) => {
+  return (
+    <>
+      {users.map((user: User) => {
+        return (
+          <option key={user.id} value={user.id}>
+            {user.name}
+          </option>
+        );
+      })}
+    </>
+  );
+};