hl-valdemar
0411064f0c
Persist authoritative per-video positions in UserDefaults. Save periodic checkpoints, pause, close, replacement, and quit; restore a validated position before autoplay. Canonical YouTube webpage URLs survive fresh stream extraction, and local symlinks share file progress. Clear completed or out-of-duration bookmarks. Leave failed opens and live/non-seekable inputs out of persistence. Pending opens hide errors belonging to the previous source. Verified separate-process restart, source replacement, failed-open recovery, completion, checkpoints, real YouTube short-link resume, live exclusion, and make all check.
30 lines
1.1 KiB
Swift
30 lines
1.1 KiB
Swift
import Foundation
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struct PlaybackProgress {
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private let defaults: UserDefaults
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private var positions: [String: Double]
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init(defaults: UserDefaults = .standard) {
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self.defaults = defaults
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positions = defaults.dictionary(forKey: "playbackPositions") as? [String: Double] ?? [:]
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}
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func position(for url: URL) -> Double? {
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guard let position = positions[key(for: url)], position.isFinite, position > 0 else { return nil }
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return position
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}
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mutating 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 positions[key] != position else { return }
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positions[key] = position
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defaults.set(positions, forKey: "playbackPositions")
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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 url.isFileURL ? url.standardizedFileURL.resolvingSymlinksInPath().absoluteString : url.absoluteString
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}
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}
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