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February 16, 2019 18:05
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import UIKit | |
final class ImageManager { | |
// weaver: urlSession = URLSession | |
// weaver: urlSession.builder = URLSession.make | |
private let dependencies: ImageManagerDependencyContainer | |
required init(dependencies: ImageManagerDependencyContainer) { | |
self.dependencies = dependencies | |
} | |
func getImage(with path: String, completion: @escaping (UIImage?) -> Void) { | |
let completionOnMainThread = { result in | |
DispatchQueue.main.async { | |
completion(result) | |
} | |
} | |
guard let url = URL(string: "https://image.tmdb.org/t/p/w1280/\(path)") else { | |
completion(nil) | |
return | |
} | |
let task = dependencies.urlSession.dataTask(with: url) { (data, response, error) in | |
if error != nil { | |
completionOnMainThread(nil) | |
return | |
} | |
guard let response = response as? HTTPURLResponse else { | |
completionOnMainThread(nil) | |
return | |
} | |
guard response.statusCode == 200 || response.statusCode == 304 else { | |
completionOnMainThread(nil) | |
return | |
} | |
guard let data = data else { | |
completionOnMainThread(nil) | |
return | |
} | |
completionOnMainThread(UIImage(data: data)) | |
} | |
task.resume() | |
} | |
} | |
extension URLSession { | |
static func make(_: ImageManagerDependencyResolver) -> URLSession { | |
return URLSession(configuration: .default) | |
} | |
} |
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