The MovieDatabase Parser

TheMovieDatabase.swift

import UIKit

var json = """
{
  "results": [
    {
      "vote_average": 7.4,
      "vote_count": 6066,
      "id": 284053,
      "video": false,
      "media_type": "movie",
      "title": "Thor: Ragnarok",
      "popularity": 176.328774,
      "poster_path": "/rzRwTcFvttcN1ZpX2xv4j3tSdJu.jpg",
      "original_language": "en",
      "original_title": "Thor: Ragnarok",
      "genre_ids": [
        28,
        12,
        14
      ],
      "backdrop_path": "/kaIfm5ryEOwYg8mLbq8HkPuM1Fo.jpg",
      "adult": false,
      "overview": "Thor is imprisoned on the other side of the universe and finds himself in a race against time to get back to Asgard to stop Ragnarok, the prophecy of destruction to his homeworld and the end of Asgardian civilization, at the hands of an all-powerful new threat, the ruthless Hela.",
      "release_date": "2017-10-25"
    },
    {
      "vote_average": 7.3,
      "vote_count": 7242,
      "id": 315635,
      "video": false,
      "media_type": "movie",
      "title": "Spider-Man: Homecoming",
      "popularity": 52.43484,
      "poster_path": "/c24sv2weTHPsmDa7jEMN0m2P3RT.jpg",
      "original_language": "en",
      "original_title": "Spider-Man: Homecoming",
      "genre_ids": [
        28,
        12,
        35,
        878
      ],
      "backdrop_path": "/vc8bCGjdVp0UbMNLzHnHSLRbBWQ.jpg",
      "adult": false,
      "overview": "Following the events of Captain America: Civil War, Peter Parker, with the help of his mentor Tony Stark, tries to balance his life as an ordinary high school student in Queens, New York City, with fighting crime as his superhero alter ego Spider-Man as a new threat, the Vulture, emerges.",
      "release_date": "2017-07-05"
    },
    {
      "vote_average": 7.6,
      "vote_count": 7976,
      "id": 283995,
      "video": false,
      "media_type": "movie",
      "title": "Guardians of the Galaxy Vol. 2",
      "popularity": 54.975292,
      "poster_path": "/y4MBh0EjBlMuOzv9axM4qJlmhzz.jpg",
      "original_language": "en",
      "original_title": "Guardians of the Galaxy Vol. 2",
      "genre_ids": [
        28,
        12,
        35,
        878
      ],
      "backdrop_path": "/aJn9XeesqsrSLKcHfHP4u5985hn.jpg",
      "adult": false,
      "overview": "The Guardians must fight to keep their newfound family together as they unravel the mysteries of Peter Quill's true parentage.",
      "release_date": "2017-04-19"
    }
  ]
}
""".data(using: .utf8)!

extension DateFormatter {
    func formatDate(from string: String) -> Date? {
        self.dateFormat = "yyyy-MM-dd"
        return self.date(from: string)
    }
}

struct Movie: Codable, CustomStringConvertible {

    let title: String
    let voteAverage: Float
    let id: Int
    let video: Bool
    let mediaType: String
    let popularity: Float
    let originalTitle: String
    let overview: String
    private let releaseDate: String

    var releaseDateValue: Date {
        return DateFormatter().date(from: releaseDate) ?? Date()
    }

    var description: String {
        return "\n TITLE: \(title), AVERAGE: \(voteAverage), POPULARITY: \(popularity),  RELEASE: \(releaseDate) \n"
    }
}

struct MoviesResponse: Codable {
    var movies: [Movie]

    enum MovieClasification {
        case popular
        case top
        case upcomming
    }

    private enum CodingKeys: String, CodingKey {
        case movies = "results"
    }

    func list(by clasification: MovieClasification) -> [Movie] {
        switch clasification {
        case .popular:
            return movies.sorted{ $0.popularity > $1.popularity }
        case .top:
            return movies.sorted{ $0.voteAverage > $1.voteAverage }
        case .upcomming:
            return movies.sorted{ $0.releaseDateValue < $1.releaseDateValue }
        }
    }

    func filterMovie(name: String, clasification: MovieClasification) -> [Movie] {
        return list(by: clasification).filter { $0.title.contains(name) }
    }

}
let decoder = JSONDecoder()
decoder.keyDecodingStrategy = .convertFromSnakeCase

let moviesResponse = try! decoder.decode(MoviesResponse.self, from: json)
print(moviesResponse.list(by: .popular))