solution

src/App.tsx

@@ -2,15 +2,23 @@ import './App.scss';
 import { MoviesList } from './components/MoviesList';
 import { NewMovie } from './components/NewMovie';
 import moviesFromServer from './api/movies.json';
+import { Movie } from './types/Movie';
+import { useState } from 'react';
 
 export const App = () => {
+  const [movies, setMovies] = useState<Movie[]>([...moviesFromServer]);
+
+  const handleAddMovie = (movie: Movie) => {
+    setMovies((prevMovies: Movie[]) => [...prevMovies, movie]);
+  };
+
   return (
     <div className="page">
       <div className="page-content">
-        <MoviesList movies={moviesFromServer} />
+        <MoviesList movies={movies} />
       </div>
       <div className="sidebar">
-        <NewMovie /* onAdd={(movie) => {}} */ />
+        <NewMovie onAdd={handleAddMovie} />
       </div>
     </div>
   );

src/components/NewMovie/NewMovie.tsx

@@ -1,37 +1,102 @@
-import { useState } from 'react';
+import React, { useState } from 'react';
 import { TextField } from '../TextField';
+import { Movie } from '../../types/Movie';
 
-export const NewMovie = () => {
+type Props = {
+  onAdd: (movie: Movie) => void;
+};
+
+export const NewMovie: React.FC<Props> = ({ onAdd }) => {
   // Increase the count after successful form submission
   // to reset touched status of all the `Field`s
   const [count] = useState(0);
+  const [title, setTitle] = useState('');
+  const [description, setDescription] = useState('');
+  const [imgUrl, setImgUrl] = useState('');
+  const [imdbUrl, setImdbUrl] = useState('');
+  const [imdbId, setImdbId] = useState('');
+
+  const handleSubmit = (event: React.FormEvent) => {
+    event.preventDefault();
+    if (!title || !imgUrl || !imdbUrl || !imdbId) {
+      return;
+    }
+
+    const newMovie: Movie = {
+      title,
+      description,
+      imgUrl,
+      imdbUrl,
+      imdbId,
+    };
+
+    if (title) {
+      setTitle('');
+      setDescription('');
+      setImgUrl('');
+      setImdbUrl('');
+      setImdbId('');
+    }
+
+    onAdd(newMovie);
+  };
 
   return (
-    <form className="NewMovie" key={count}>
+    <form className="NewMovie" key={count + 1} onSubmit={handleSubmit}>
       <h2 className="title">Add a movie</h2>
 
       <TextField
         name="title"
         label="Title"
-        value=""
-        onChange={() => {}}
+        value={title}
+        onChange={setTitle}
         required
       />
 
-      <TextField name="description" label="Description" value="" />
+      <TextField
+        name="description"
+        label="Description"
+        value={description}
+        onChange={setDescription}
+        required
+      />
 
-      <TextField name="imgUrl" label="Image URL" value="" />
+      <TextField
+        name="imgUrl"
+        label="Image URL"
+        value={imgUrl}
+        onChange={setImgUrl}
+        required
+      />
 
-      <TextField name="imdbUrl" label="Imdb URL" value="" />
+      <TextField
+        name="imdbUrl"
+        label="Imdb URL"
+        value={imdbUrl}
+        onChange={setImdbUrl}
+        required
+      />
 
-      <TextField name="imdbId" label="Imdb ID" value="" />
+      <TextField
+        name="imdbId"
+        label="Imdb ID"
+        value={imdbId}
+        onChange={setImdbId}
+        required
+      />
 
       <div className="field is-grouped">
         <div className="control">
           <button
             type="submit"
             data-cy="submit-button"
             className="button is-link"
+            onClick={() => {}}
+            disabled={
+              !title && !description && !imgUrl && !imdbUrl && !imdbId
+                ? true
+                : false
+            }
           >
             Add
           </button>