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yattee/Model/ThumbnailsModel.swift

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import Defaults
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import Foundation
final class ThumbnailsModel: ObservableObject {
static var shared = ThumbnailsModel()
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@Published var unloadable = Set<URL>()
func insertUnloadable(_ url: URL) {
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DispatchQueue.main.async {
self.unloadable.insert(url)
}
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}
func isUnloadable(_ url: URL!) -> Bool {
guard !url.isNil else {
return true
}
return unloadable.contains(url)
}
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func best(_ video: Video) -> URL? {
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for quality in availableQualitites {
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let url = video.thumbnailURL(quality: quality)
if !isUnloadable(url) {
return url
}
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}
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return nil
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}
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private var availableQualitites: [Thumbnail.Quality] {
switch Defaults[.thumbnailsQuality] {
case .highest:
return [.maxresdefault, .medium, .default]
case .medium:
return [.medium, .default]
case .low:
return [.default]
}
}
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}