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yattee/Model/Player/PlayerQueue.swift

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Swift
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import AVKit
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import Defaults
import Foundation
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import Siesta
extension PlayerModel {
var currentVideo: Video? {
currentItem?.video
}
func play(_ videos: [Video], shuffling: Bool = false, inNavigationView: Bool = false) {
let videosToPlay = shuffling ? videos.shuffled() : videos
guard let first = videosToPlay.first else {
return
}
enqueueVideo(first, prepending: true) { _, item in
self.advanceToItem(item)
}
videosToPlay.dropFirst().reversed().forEach { video in
enqueueVideo(video, prepending: true) { _, item in
if item.video == first {
self.advanceToItem(item)
}
}
}
if inNavigationView {
playerNavigationLinkActive = true
} else {
show()
}
}
func playNext(_ video: Video) {
enqueueVideo(video, prepending: true) { _, item in
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if self.currentItem.isNil {
self.advanceToItem(item)
}
}
}
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func playNow(_ video: Video, at time: TimeInterval? = nil) {
if playingInPictureInPicture, closePiPOnNavigation {
closePiP()
}
prepareCurrentItemForHistory()
enqueueVideo(video, prepending: true) { _, item in
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self.advanceToItem(item, at: time)
}
}
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func playItem(_ item: PlayerQueueItem, video: Video? = nil, at time: TimeInterval? = nil) {
if !playingInPictureInPicture {
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backend.closeItem()
}
comments.reset()
stream = nil
currentItem = item
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if !time.isNil {
currentItem.playbackTime = .secondsInDefaultTimescale(time!)
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} else if currentItem.playbackTime.isNil {
currentItem.playbackTime = .zero
}
if video != nil {
currentItem.video = video!
}
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preservedTime = currentItem.playbackTime
DispatchQueue.main.async { [weak self] in
guard let video = self?.currentVideo else {
return
}
self?.loadAvailableStreams(video)
}
}
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func preferredStream(_ streams: [Stream]) -> Stream? {
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let quality = Defaults[.quality]
var streams = streams
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if let id = Defaults[.playerInstanceID] {
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streams = streams.filter { $0.instance.id == id }
}
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streams = streams.filter { backend.canPlay($0) }
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return backend.bestPlayable(streams, maxResolution: quality)
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}
func advanceToNextItem() {
prepareCurrentItemForHistory()
if let nextItem = queue.first {
advanceToItem(nextItem)
}
}
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func advanceToItem(_ newItem: PlayerQueueItem, at time: TimeInterval? = nil) {
prepareCurrentItemForHistory()
remove(newItem)
currentItem = newItem
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pause()
accounts.api.loadDetails(newItem) { newItem in
self.playItem(newItem, video: newItem.video, at: time)
}
}
@discardableResult func remove(_ item: PlayerQueueItem) -> PlayerQueueItem? {
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if let index = queue.firstIndex(where: { $0.videoID == item.videoID }) {
return queue.remove(at: index)
}
return nil
}
func resetQueue() {
DispatchQueue.main.async { [weak self] in
guard let self = self else {
return
}
self.currentItem = nil
self.stream = nil
self.removeQueueItems()
}
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backend.closeItem()
}
@discardableResult func enqueueVideo(
_ video: Video,
play: Bool = false,
atTime: CMTime? = nil,
prepending: Bool = false,
videoDetailsLoadHandler: @escaping (Video, PlayerQueueItem) -> Void = { _, _ in }
) -> PlayerQueueItem? {
let item = PlayerQueueItem(video, playbackTime: atTime)
if play {
currentItem = item
// pause playing current video as it's going to be replaced with next one
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pause()
}
queue.insert(item, at: prepending ? 0 : queue.endIndex)
accounts.api.loadDetails(item) { newItem in
videoDetailsLoadHandler(newItem.video, newItem)
if play {
self.playItem(newItem, video: video)
}
}
return item
}
func prepareCurrentItemForHistory(finished: Bool = false) {
if !currentItem.isNil, Defaults[.saveHistory] {
if let video = currentVideo, !historyVideos.contains(where: { $0 == video }) {
historyVideos.append(video)
}
updateWatch(finished: finished)
}
}
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func playHistory(_ item: PlayerQueueItem) {
var time = item.playbackTime
if item.shouldRestartPlaying {
time = .zero
}
let newItem = enqueueVideo(item.video, atTime: time, prepending: true)
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advanceToItem(newItem!)
}
func removeQueueItems() {
queue.removeAll()
}
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func restoreQueue() {
guard !accounts.current.isNil else {
return
}
var restoredQueue = [PlayerQueueItem?]()
if let lastPlayed = Defaults[.lastPlayed],
!Defaults[.queue].contains(where: { $0.videoID == lastPlayed.videoID })
{
restoredQueue.append(lastPlayed)
Defaults[.lastPlayed] = nil
}
restoredQueue.append(contentsOf: Defaults[.queue])
queue = restoredQueue.compactMap { $0 }
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queue.forEach { item in
accounts.api.loadDetails(item) { newItem in
if let index = self.queue.firstIndex(where: { $0.id == item.id }) {
self.queue[index] = newItem
}
}
}
}
}