58 lines
2.3 KiB
Swift
58 lines
2.3 KiB
Swift
import Foundation
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struct PlaybackProgress {
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struct RecentMedia: Equatable, Identifiable {
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let url: URL
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let title: String
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var id: URL { url }
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}
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private let defaults: UserDefaults
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init(defaults: UserDefaults = .standard) {
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self.defaults = defaults
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// Migrate the old shared dictionary once; separate keys prevent cross-player lost updates.
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if let positions = defaults.dictionary(forKey: "playbackPositions") as? [String: Double] {
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for (identity, position) in positions where position.isFinite && position > 0 {
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let key = "playbackPosition:" + identity
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if defaults.object(forKey: key) == nil { defaults.set(position, forKey: key) }
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}
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defaults.removeObject(forKey: "playbackPositions")
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}
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}
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func position(for url: URL) -> Double? {
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guard let position = defaults.object(forKey: key(for: url)) as? Double,
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position.isFinite, position > 0 else { return nil }
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return position
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}
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func save(_ position: Double?, for url: URL) {
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let key = key(for: url)
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let position = position.flatMap { $0.isFinite && $0 > 0 ? $0 : nil }
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guard (defaults.object(forKey: key) as? Double) != position else { return }
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defaults.set(position, forKey: key)
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}
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var recentMedia: [RecentMedia] {
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(defaults.array(forKey: "recentMedia") as? [[String: String]] ?? []).compactMap {
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guard let text = $0["url"], let url = URL(string: text), let title = $0["title"] else { return nil }
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return RecentMedia(url: url, title: title)
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}
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}
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func recordRecent(_ url: URL, title: String) {
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let url = url.isFileURL ? url.standardizedFileURL.resolvingSymlinksInPath() : url
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var entries = recentMedia
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entries.removeAll { $0.url == url }
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entries.insert(RecentMedia(url: url, title: title), at: 0)
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defaults.set(entries.prefix(6).map { ["url": $0.url.absoluteString, "title": $0.title] },
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forKey: "recentMedia")
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}
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private func key(for url: URL) -> String {
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// YouTube callers supply the canonical webpage URL, never an expiring media URL.
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return "playbackPosition:" + (url.isFileURL ? url.standardizedFileURL.resolvingSymlinksInPath().absoluteString : url.absoluteString)
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}
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}
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