react_add-todo-form solution

src/App.tsx

@@ -1,61 +1,130 @@
 import './App.scss';
+import React, { useState } from 'react';
+import { TodoList } from './components/TodoList';
 
-// import usersFromServer from './api/users';
-// import todosFromServer from './api/todos';
+import usersFromServer from './api/users';
+import todosFromServer from './api/todos';
+
+import { Todo } from './types/Todo';
+
+function getUserById(userId: number) {
+  return usersFromServer.find(user => user.id === userId);
+}
+
+function getTodoId(todos: Todo[]) {
+  const maxId = Math.max(...todos.map(todo => todo.id));
+
+  return maxId + 1;
+}
+
+const initialTodos: Todo[] = todosFromServer.map(todo => ({
+  ...todo,
+  user: getUserById(todo.userId),
+}));
+
+export const App: React.FC = () => {
+  const [todos, setTodos] = useState<Todo[]>(initialTodos);
+
+  const [title, setTitle] = useState('');
+  const [userId, setUserId] = useState(0);
+  const [hasNoTitleError, setHasNoTitleError] = useState(true);
+  const [hasNoUserIdError, setHasNoUserIdError] = useState(true);
+
+  const handleTitleChange = (event: React.ChangeEvent<HTMLInputElement>) => {
+    setTitle(event.target.value);
+    setHasNoTitleError(true);
+  };
+
+  const handleUserIdChange = (event: React.ChangeEvent<HTMLSelectElement>) => {
+    setUserId(+event.target.value);
+    setHasNoUserIdError(true);
+  };
+
+  const addTodo = (event: React.FormEvent) => {
+    event.preventDefault();
+
+    if (!title.trim()) {
+      setHasNoTitleError(false);
+
+      return;
+    }
+
+    if (userId === 0) {
+      setHasNoUserIdError(false);
+
+      return;
+    }
+
+    const newTodo: Todo = {
+      id: getTodoId(todos),
+      title,
+      completed: false,
+      userId,
+      user: usersFromServer.find(user => user.id === userId),
+    };
+
+    setTodos([...todos, newTodo]);
+
+    setTitle('');
+    setUserId(0);
+  };
 
-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={addTodo}
+      >
         <div className="field">
-          <input type="text" data-cy="titleInput" />
-          <span className="error">Please enter a title</span>
+          <input
+            type="text"
+            value={title}
+            data-cy="titleInput"
+            pattern="^[a-zA-Z0-9\sА-Яа-яіІєЄїЇґҐ  ]*$"
+            placeholder="Please enter a title"
+            onChange={handleTitleChange}
+          />
+          {!hasNoTitleError && (
+            <span className="error">Please enter a title</span>
+          )}
         </div>
 
         <div className="field">
-          <select data-cy="userSelect">
-            <option value="0" disabled>Choose a user</option>
+          <select
+            data-cy="userSelect"
+            value={userId}
+            onChange={handleUserIdChange}
+          >
+            <option value="0" disabled>
+              Choose a user
+            </option>
+            {usersFromServer.map(user => (
+              <option
+                value={user.id}
+                key={user.id}
+              >
+                {user.name}
+              </option>
+            ))}
           </select>
 
-          <span className="error">Please choose a user</span>
+          {!hasNoUserIdError && (
+            <span className="error">Please choose a user</span>
+          )}
         </div>
 
-        <button type="submit" data-cy="submitButton">
+        <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 +1,35 @@
-export const TodoInfo = () => {};
+import cn from 'classnames';
+import { Todo } from '../../types/Todo';
+import { UserInfo } from '../UserInfo';
+
+type Props = {
+  todo: Todo;
+};
+
+export const TodoInfo: React.FC<Props> = ({ todo }) => {
+  const {
+    id,
+    title,
+    completed,
+    user,
+  } = todo;
+
+  return (
+    <article
+      data-id={id}
+      key={id}
+      className={cn('TodoInfo', {
+        'TodoInfo--completed': completed,
+      })}
+    >
+      <h2 className="TodoInfo__title">
+        {title}
+      </h2>
+
+      {user && (
+
+        <UserInfo user={user} />
+      )}
+    </article>
+  );
+};

src/components/TodoList/TodoList.tsx

@@ -1 +1,17 @@
-export const TodoList = () => {};
+import React from 'react';
+import { Todo } from '../../types/Todo';
+import { TodoInfo } from '../TodoInfo';
+
+type Props = {
+  todos: Todo[];
+};
+
+export const TodoList: React.FC<Props> = ({ todos }) => {
+  return (
+    <section className="TodoList">
+      {todos.map(todo => (
+        <TodoInfo todo={todo} key={todo.id} />
+      ))}
+    </section>
+  );
+};

src/components/UserInfo/UserInfo.tsx

@@ -1 +1,16 @@
-export const UserInfo = () => {};
+import React from 'react';
+import { User } from '../../types/User';
+
+type Props = {
+  user: User;
+};
+
+export const UserInfo: React.FC<Props> = ({ user }) => {
+  const { name, email } = user;
+
+  return (
+    <a className="UserInfo" href={`mailto:${email}`}>
+      {name}
+    </a>
+  );
+};

src/types/Todo.ts

@@ -0,0 +1,9 @@
+import { User } from './User';
+
+export type Todo = {
+  id: number;
+  title: string;
+  completed: boolean;
+  userId: number;
+  user?: User;
+};

src/types/User.ts

@@ -0,0 +1,6 @@
+export type User = {
+  id: number;
+  name: string;
+  username: string;
+  email: string;
+};