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import UIKit
final class ImageManager {
private let dependencies: ImageManagerDependencyResolver
// weaver: urlSession = URLSession
required init(injecting dependencies: ImageManagerDependencyResolver) {
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()
}
}
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