yattee/Model/Player/PlayerSponsorBlock.swift
2023-05-18 11:32:45 +02:00

103 lines
3.0 KiB
Swift

import AVFAudio
import CoreMedia
import Defaults
import Foundation
import SwiftUI
extension PlayerModel {
func handleSegments(at time: CMTime) {
if let segment = lastSkipped {
if time > .secondsInDefaultTimescale(segment.end + 5) {
resetLastSegment()
}
}
guard let firstSegment = sponsorBlock.segments.first(where: { $0.timeInSegment(time) }) else {
return
}
// find last segment in case they are 2 sec or less after each other
// to avoid multiple skips in a row
var nextSegments = [firstSegment]
while let segment = sponsorBlock.segments.first(where: {
!nextSegments.contains($0) &&
$0.timeInSegment(.secondsInDefaultTimescale(nextSegments.last!.end + 2))
}) {
nextSegments.append(segment)
}
if let segmentToSkip = nextSegments.last, shouldSkip(segmentToSkip, at: time) {
skip(segmentToSkip, at: time)
}
}
private func skip(_ segment: Segment, at time: CMTime) {
if let duration = playerItemDuration, segment.endTime.seconds >= duration.seconds - 3 {
logger.error("segment end time is: \(segment.end) when player item duration is: \(duration.seconds)")
DispatchQueue.main.async { [weak self] in
guard let self else {
return
}
self.pause()
self.backend.eofPlaybackModeAction()
}
return
}
backend.seek(to: segment.endTime, seekType: .segmentSkip(segment.category))
DispatchQueue.main.async { [weak self] in
withAnimation {
self?.lastSkipped = segment
}
self?.segmentRestorationTime = time
}
logger.info("SponsorBlock skipping to: \(segment.end)")
}
private func shouldSkip(_ segment: Segment, at time: CMTime) -> Bool {
guard isPlaying,
!restoredSegments.contains(segment),
Defaults[.sponsorBlockCategories].contains(segment.category)
else {
return false
}
return time.seconds - segment.start < 2 && segment.end - time.seconds > 2
}
func restoreLastSkippedSegment() {
guard let segment = lastSkipped,
let time = segmentRestorationTime
else {
return
}
restoredSegments.append(segment)
backend.seek(to: time, seekType: .segmentRestore)
resetLastSegment()
}
private func resetLastSegment() {
DispatchQueue.main.async { [weak self] in
withAnimation {
self?.lastSkipped = nil
self?.controls.objectWillChange.send()
}
self?.segmentRestorationTime = nil
}
}
func resetSegments() {
resetLastSegment()
DispatchQueue.main.async { [weak self] in
self?.restoredSegments = []
}
}
}