java/project/repository/MovieRepository.java

package com.example.moviecli.repository;

import com.example.moviecli.model.Movie;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class MovieRepository {
    private final List<Movie> movies = new ArrayList<>();

    public void add(Movie movie) {
        if (movie == null) throw new IllegalArgumentException();
        movies.add(movie);
    }

    public void addAll(List<Movie> list) {
        movies.addAll(list);
    }

    public List<Movie> getAll() {
        return Collections.unmodifiableList(movies);
    }

    public void clear() {
        movies.clear();
    }

    public int size() {
        return movies.size();
    }
}