Add Screening

Part of the Logic & Flow section of Coddy's JavaScript journey — lesson 62 of 65.

Challenge

Easy

Add a new test case to your switch statement: addScreening.

For addScreening the data parameters contains:

movieId (number)
venueId (number)
date (string in 'YYYY-MM-DD' format)
time (string in 'HH:MM:SS' format)

The function should:

Validate if movie and venue exist - If movie or venue not found, add "Movie or venue not found!" to results
Check if there's no screening at the same venue, date and time - If screening exists, add "Screening already exists at this time!" to results
Create a new screening object with:
- id: generate by adding 1 to the length of screening array
- movieId, venueId, date, and time from the data
- availableSeats: equal to venue's capacity
Add the screening to festivalData.screenings array
Add Screening added successfully! to results array

Try it yourself

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;


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