mirror of
https://github.com/Swiftgram/Telegram-iOS.git
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294 lines
14 KiB
Swift
294 lines
14 KiB
Swift
import Foundation
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import SwiftSignalKit
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import Postbox
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import TelegramCore
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import TelegramUIPreferences
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import AccountContext
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import PhotoResources
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import StickerResources
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import Emoji
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import UniversalMediaPlayer
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private final class PrefetchMediaContext {
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let fetchDisposable = MetaDisposable()
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init() {
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}
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}
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public enum PrefetchMediaItem {
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case chatHistory(ChatHistoryPreloadMediaItem)
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case animatedEmojiSticker(TelegramMediaFile)
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}
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private final class PrefetchManagerInnerImpl {
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private let queue: Queue
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private let account: Account
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private let engine: TelegramEngine
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private let fetchManager: FetchManager
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private var listDisposable: Disposable?
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private var contexts: [MediaId: PrefetchMediaContext] = [:]
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private let preloadGreetingStickerDisposable = MetaDisposable()
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fileprivate let preloadedGreetingStickerPromise = Promise<TelegramMediaFile?>(nil)
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init(queue: Queue, sharedContext: SharedAccountContext, account: Account, engine: TelegramEngine, fetchManager: FetchManager) {
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self.queue = queue
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self.account = account
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self.engine = engine
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self.fetchManager = fetchManager
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let networkType = account.networkType
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|> map { networkType -> MediaAutoDownloadNetworkType in
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switch networkType {
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case .none, .cellular:
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return .cellular
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case .wifi:
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return .wifi
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}
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}
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|> distinctUntilChanged
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let appConfiguration = account.postbox.preferencesView(keys: [PreferencesKeys.appConfiguration])
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|> take(1)
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|> map { view in
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return view.values[PreferencesKeys.appConfiguration] as? AppConfiguration ?? .defaultValue
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}
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let orderedPreloadMedia = combineLatest(account.viewTracker.orderedPreloadMedia, TelegramEngine(account: account).stickers.loadedStickerPack(reference: .animatedEmoji, forceActualized: false), appConfiguration)
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|> map { orderedPreloadMedia, stickerPack, appConfiguration -> [PrefetchMediaItem] in
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let emojiSounds = AnimatedEmojiSoundsConfiguration.with(appConfiguration: appConfiguration, account: account)
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let chatHistoryMediaItems = orderedPreloadMedia.map { PrefetchMediaItem.chatHistory($0) }
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var stickerItems: [PrefetchMediaItem] = []
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switch stickerPack {
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case let .result(_, items, _):
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var animatedEmojiStickers: [String: StickerPackItem] = [:]
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for case let item as StickerPackItem in items {
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if let emoji = item.getStringRepresentationsOfIndexKeys().first {
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animatedEmojiStickers[emoji.basicEmoji.0] = item
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}
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}
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let popularEmoji = ["\u{2764}", "👍", "👎", "😳", "😒", "🥳", "😡", "😮", "😂", "😘", "😍", "🙄", "😎"]
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for emoji in popularEmoji {
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if let sticker = animatedEmojiStickers[emoji] {
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if let _ = account.postbox.mediaBox.completedResourcePath(sticker.file.resource) {
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} else {
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stickerItems.append(.animatedEmojiSticker(sticker.file))
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}
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}
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}
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default:
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break
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}
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var prefetchItems: [PrefetchMediaItem] = []
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prefetchItems.append(contentsOf: chatHistoryMediaItems)
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prefetchItems.append(contentsOf: stickerItems)
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prefetchItems.append(contentsOf: emojiSounds.sounds.values.map { .animatedEmojiSticker($0) })
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return prefetchItems
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}
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self.listDisposable = (combineLatest(orderedPreloadMedia, sharedContext.automaticMediaDownloadSettings, networkType)
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|> deliverOn(self.queue)).start(next: { [weak self] orderedPreloadMedia, automaticDownloadSettings, networkType in
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self?.updateOrderedPreloadMedia(orderedPreloadMedia, automaticDownloadSettings: automaticDownloadSettings, networkType: networkType)
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})
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}
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deinit {
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assert(self.queue.isCurrent())
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self.listDisposable?.dispose()
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}
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private func updateOrderedPreloadMedia(_ items: [PrefetchMediaItem], automaticDownloadSettings: MediaAutoDownloadSettings, networkType: MediaAutoDownloadNetworkType) {
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var validIds = Set<MediaId>()
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var order: Int32 = 0
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for mediaItem in items {
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switch mediaItem {
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case let .chatHistory(mediaItem):
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guard let id = mediaItem.media.media.id else {
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continue
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}
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if validIds.contains(id) {
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continue
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}
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var automaticDownload: InteractiveMediaNodeAutodownloadMode = .none
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let peerType: MediaAutoDownloadPeerType
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if mediaItem.media.authorIsContact {
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peerType = .contact
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} else if let channel = mediaItem.media.peer as? TelegramChannel {
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if case .group = channel.info {
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peerType = .group
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} else {
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peerType = .channel
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}
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} else if mediaItem.media.peer is TelegramGroup {
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peerType = .group
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} else {
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peerType = .otherPrivate
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}
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var mediaResource: MediaResource?
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if let telegramImage = mediaItem.media.media as? TelegramMediaImage {
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mediaResource = largestRepresentationForPhoto(telegramImage)?.resource
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if shouldDownloadMediaAutomatically(settings: automaticDownloadSettings, peerType: peerType, networkType: networkType, authorPeerId: nil, contactsPeerIds: [], media: telegramImage) {
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automaticDownload = .full
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}
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} else if let telegramFile = mediaItem.media.media as? TelegramMediaFile {
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mediaResource = telegramFile.resource
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if shouldDownloadMediaAutomatically(settings: automaticDownloadSettings, peerType: peerType, networkType: networkType, authorPeerId: nil, contactsPeerIds: [], media: telegramFile) {
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automaticDownload = .full
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} else if shouldPredownloadMedia(settings: automaticDownloadSettings, peerType: peerType, networkType: networkType, media: telegramFile) {
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automaticDownload = .prefetch
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}
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}
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if case .none = automaticDownload {
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continue
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}
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guard let resource = mediaResource else {
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continue
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}
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validIds.insert(id)
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let context: PrefetchMediaContext
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if let current = self.contexts[id] {
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context = current
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} else {
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context = PrefetchMediaContext()
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self.contexts[id] = context
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let media = mediaItem.media.media
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let priority: FetchManagerPriority = .backgroundPrefetch(locationOrder: mediaItem.preloadIndex, localOrder: mediaItem.media.index)
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if case .full = automaticDownload {
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if let image = media as? TelegramMediaImage {
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context.fetchDisposable.set(messageMediaImageInteractiveFetched(fetchManager: self.fetchManager, messageId: mediaItem.media.index.id, messageReference: MessageReference(peer: mediaItem.media.peer, id: mediaItem.media.index.id, timestamp: mediaItem.media.index.timestamp, incoming: true, secret: false), image: image, resource: resource, userInitiated: false, priority: priority, storeToDownloadsPeerType: nil).start())
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} else if let _ = media as? TelegramMediaWebFile {
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//strongSelf.fetchDisposable.set(chatMessageWebFileInteractiveFetched(account: context.account, image: image).start())
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} else if let file = media as? TelegramMediaFile {
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let fetchSignal = messageMediaFileInteractiveFetched(fetchManager: self.fetchManager, messageId: mediaItem.media.index.id, messageReference: MessageReference(peer: mediaItem.media.peer, id: mediaItem.media.index.id, timestamp: mediaItem.media.index.timestamp, incoming: true, secret: false), file: file, userInitiated: false, priority: priority)
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context.fetchDisposable.set(fetchSignal.start())
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}
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} else if case .prefetch = automaticDownload, mediaItem.media.peer.id.namespace != Namespaces.Peer.SecretChat {
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if let file = media as? TelegramMediaFile, let _ = file.size {
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context.fetchDisposable.set(preloadVideoResource(postbox: self.account.postbox, resourceReference: FileMediaReference.message(message: MessageReference(peer: mediaItem.media.peer, id: mediaItem.media.index.id, timestamp: mediaItem.media.index.timestamp, incoming: true, secret: false), media: file).resourceReference(file.resource), duration: 4.0).start())
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}
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}
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}
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case let .animatedEmojiSticker(media):
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guard let id = media.id else {
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continue
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}
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if validIds.contains(id) {
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continue
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}
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var automaticDownload: InteractiveMediaNodeAutodownloadMode = .none
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let peerType = MediaAutoDownloadPeerType.contact
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if shouldDownloadMediaAutomatically(settings: automaticDownloadSettings, peerType: peerType, networkType: networkType, authorPeerId: nil, contactsPeerIds: [], media: media) {
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automaticDownload = .full
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}
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if case .none = automaticDownload {
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continue
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}
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validIds.insert(id)
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let context: PrefetchMediaContext
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if let current = self.contexts[id] {
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context = current
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} else {
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context = PrefetchMediaContext()
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self.contexts[id] = context
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let priority: FetchManagerPriority = .backgroundPrefetch(locationOrder: HistoryPreloadIndex(index: nil, hasUnread: false, isMuted: false, isPriority: true), localOrder: MessageIndex(id: MessageId(peerId: PeerId(0), namespace: 0, id: order), timestamp: 0))
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if case .full = automaticDownload {
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let fetchSignal = freeMediaFileInteractiveFetched(fetchManager: self.fetchManager, fileReference: .standalone(media: media), priority: priority)
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context.fetchDisposable.set(fetchSignal.start())
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}
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order += 1
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}
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}
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}
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var removeIds: [MediaId] = []
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for key in self.contexts.keys {
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if !validIds.contains(key) {
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removeIds.append(key)
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}
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}
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for id in removeIds {
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if let context = self.contexts.removeValue(forKey: id) {
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context.fetchDisposable.dispose()
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}
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}
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}
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fileprivate func prepareNextGreetingSticker() {
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let account = self.account
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let engine = self.engine
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self.preloadedGreetingStickerPromise.set(.single(nil)
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|> then(engine.stickers.randomGreetingSticker()
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|> map { item in
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return item?.file
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}))
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self.preloadGreetingStickerDisposable.set((self.preloadedGreetingStickerPromise.get()
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|> mapToSignal { sticker -> Signal<Void, NoError> in
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if let sticker = sticker {
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let _ = freeMediaFileInteractiveFetched(account: account, fileReference: .standalone(media: sticker)).start()
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return chatMessageAnimationData(mediaBox: account.postbox.mediaBox, resource: sticker.resource, fitzModifier: nil, width: 384, height: 384, synchronousLoad: false)
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|> mapToSignal { _ -> Signal<Void, NoError> in
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return .complete()
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}
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} else {
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return .complete()
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}
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}).start())
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}
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}
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final class PrefetchManagerImpl: PrefetchManager {
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private let queue: Queue
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private let impl: QueueLocalObject<PrefetchManagerInnerImpl>
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private let uuid = Atomic<UUID>(value: UUID())
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init(sharedContext: SharedAccountContext, account: Account, engine: TelegramEngine, fetchManager: FetchManager) {
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let queue = Queue.mainQueue()
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self.queue = queue
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self.impl = QueueLocalObject(queue: queue, generate: {
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return PrefetchManagerInnerImpl(queue: queue, sharedContext: sharedContext, account: account, engine: engine, fetchManager: fetchManager)
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})
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}
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var preloadedGreetingSticker: ChatGreetingData {
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let signal: Signal<TelegramMediaFile?, NoError> = Signal { subscriber in
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let disposable = MetaDisposable()
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self.impl.with { impl in
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disposable.set((impl.preloadedGreetingStickerPromise.get() |> take(1)).start(next: { file in
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subscriber.putNext(file)
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subscriber.putCompletion()
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}))
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}
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return disposable
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}
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return ChatGreetingData(uuid: uuid.with { $0 }, sticker: signal)
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}
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func prepareNextGreetingSticker() {
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let _ = uuid.swap(UUID())
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self.impl.with { impl in
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impl.prepareNextGreetingSticker()
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}
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}
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}
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