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Batalkan Pemutaran

Termasuk bagian Logika dan Alur dalam perjalanan JavaScript di Coddy. Pelajaran 65 dari 65.

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Tantangan

Mudah

Tambahkan case cancelScreening untuk menangani pembatalan pemutaran. Parameter data berisi:

  • screeningId (angka)

 

Fungsi harus:

  1. Jika pemutaran dengan screeningId yang diberikan tidak ada di festivalData.screenings, tambahkan Screening not found! ke results lalu hentikan
  2. Temukan dan hapus pemutaran dari array festivalData.screenings
  3. Hapus semua tiket terkait dari Set festivalData.tickets
  4. Tambahkan Screening cancelled successfully! ke array results

Coba sendiri

const festivalData = {
	movies: [{
		id: 1,
		title: "Inception",
		director: "Christopher Nolan",
		year: 2010,
		mainGenre: "Sci-Fi",
		secondGenre: undefined,
		avgRating: 0,
		available: true
	}],
	venues: [{
		id: 1,
		name: "Main Theater",
		capacity: 200,
	}],
	screenings: [{
		id: 1,
		movieId: 1,
		venueId: 1,
		date: '2023-10-29',
		time: '13:35:00',
		availableSeats: 200
	}],
	tickets: new Set()
};

function manageFestival(actions, data) {
    let results = [];
    
    actions.forEach((action, index) => {
        const currentData = data[index];
        
        switch(action) {
            case "listMovies":
                results.push(festivalData.movies);
                break;
                
            case "listVenues":
                results.push(festivalData.venues);
                break;

            case "listTickets":
                results.push(festivalData.tickets);
                break;

            case "listScreenings":
                results.push(festivalData.screenings);
                break;

            case "addMovie":
                const newMovie = {
                    id: festivalData.movies.length + 1,
                    title: currentData.title,
                    director: currentData.director,
                    year: currentData.year,
                    mainGenre: currentData.mainGenre,
                    secondGenre: currentData.secondGenre,
                    avgRating: 0,
                    available: true
                };
                festivalData.movies.push(newMovie);
                results.push("Movie added successfully!");
                break;

            case "addVenue":
                const newVenue = {
                    id: festivalData.venues.length + 1,
                    name: currentData.name,
                    capacity: currentData.capacity,
                };
                festivalData.venues.push(newVenue);
                results.push("Venue added successfully!");
                break;

            case "addScreening":
                const movie = festivalData.movies.find(m => m.id === currentData.movieId);
                const venue = festivalData.venues.find(v => v.id === currentData.venueId);
                
                if (!movie || !venue) {
                    results.push("Movie or venue not found!");
                    break;
                }
                
                const existingScreening = festivalData.screenings.find(s => 
                    s.venueId === currentData.venueId && 
                    s.date === currentData.date && 
                    s.time === currentData.time
                );
                
                if (existingScreening) {
                    results.push("Screening already exists at this time!");
                    break;
                }
                
                const newScreening = {
                    id: festivalData.screenings.length + 1,
                    movieId: currentData.movieId,
                    venueId: currentData.venueId,
                    date: currentData.date,
                    time: currentData.time,
                    availableSeats: venue.capacity
                };
                
                festivalData.screenings.push(newScreening);
                results.push("Screening added successfully!");
                break;

            case "buyTicket":
                const screening = festivalData.screenings.find(s => s.id === currentData.screeningId);
                
                if (!screening) {
                    results.push("Screening not found!");
                    break;
                }
                
                if (screening.availableSeats < currentData.quantity) {
                    results.push("Not enough seats available!");
                    break;
                }
                
                for (let i = 0; i < currentData.quantity; i++) {
                    const ticketId = `${currentData.screeningId}-${screening.availableSeats - i}`;
                    festivalData.tickets.add(ticketId);
                }
                
                screening.availableSeats -= currentData.quantity;
                results.push("Tickets purchased successfully!");
                break;


            case "rateMovie":
                const tempMovie = festivalData.movies.find(m => m.id === currentData.movieId);
                
                if (!tempMovie) {
                    results.push("Movie not found!");
                    break;
                }
                
                if (currentData.avgRating < 1 || currentData.avgRating > 5) {
                    results.push("Invalid rating! Must be between 1 and 5");
                    break;
                }

                tempMovie.avgRating = currentData.avgRating
                
                
                results.push("Rating added successfully!");
                break;

            default:
                results.push("Invalid action!");
        }
    });
    
    return results;
}

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