import AVKit import Defaults import Foundation import Siesta import SwiftyJSON final class InvidiousAPI: Service, ObservableObject, VideosAPI { static let basePath = "/api/v1" @Published var account: Account! @Published var validInstance = true @Published var signedIn = false init(account: Account? = nil) { super.init() guard !account.isNil else { self.account = .init(name: "Empty") return } setAccount(account!) } func setAccount(_ account: Account) { self.account = account signedIn = false validInstance = false signedIn = !account.anonymous configure() } func validate() { validateInstance() validateSID() } func validateInstance() { guard !validInstance else { return } home? .load() .onSuccess { _ in self.validInstance = true } .onFailure { _ in self.validInstance = false } } func validateSID() { guard !signedIn else { return } feed? .load() .onSuccess { _ in self.signedIn = true } .onFailure { _ in self.signedIn = false } } func configure() { configure { if !self.account.username.isEmpty { $0.headers["Cookie"] = self.cookieHeader } $0.pipeline[.parsing].add(SwiftyJSONTransformer, contentTypes: ["*/json"]) } configure("**", requestMethods: [.post]) { $0.pipeline[.parsing].removeTransformers() } configureTransformer(pathPattern("popular"), requestMethods: [.get]) { (content: Entity) -> [Video] in content.json.arrayValue.map(InvidiousAPI.extractVideo) } configureTransformer(pathPattern("trending"), requestMethods: [.get]) { (content: Entity) -> [Video] in content.json.arrayValue.map(InvidiousAPI.extractVideo) } configureTransformer(pathPattern("search"), requestMethods: [.get]) { (content: Entity) -> [ContentItem] in content.json.arrayValue.map { let type = $0.dictionaryValue["type"]?.stringValue if type == "channel" { return ContentItem(channel: InvidiousAPI.extractChannel(from: $0)) } else if type == "playlist" { return ContentItem(playlist: InvidiousAPI.extractChannelPlaylist(from: $0)) } return ContentItem(video: InvidiousAPI.extractVideo(from: $0)) } } configureTransformer(pathPattern("search/suggestions"), requestMethods: [.get]) { (content: Entity) -> [String] in if let suggestions = content.json.dictionaryValue["suggestions"] { return suggestions.arrayValue.map(String.init) } return [] } configureTransformer(pathPattern("auth/playlists"), requestMethods: [.get]) { (content: Entity) -> [Playlist] in content.json.arrayValue.map(Playlist.init) } configureTransformer(pathPattern("auth/playlists/*"), requestMethods: [.get]) { (content: Entity) -> Playlist in Playlist(content.json) } configureTransformer(pathPattern("auth/playlists"), requestMethods: [.post, .patch]) { (content: Entity) -> Playlist in // hacky, to verify if possible to get it in easier way Playlist(JSON(parseJSON: String(data: content.content, encoding: .utf8)!)) } configureTransformer(pathPattern("auth/feed"), requestMethods: [.get]) { (content: Entity) -> [Video] in if let feedVideos = content.json.dictionaryValue["videos"] { return feedVideos.arrayValue.map(InvidiousAPI.extractVideo) } return [] } configureTransformer(pathPattern("auth/subscriptions"), requestMethods: [.get]) { (content: Entity) -> [Channel] in content.json.arrayValue.map(InvidiousAPI.extractChannel) } configureTransformer(pathPattern("channels/*"), requestMethods: [.get]) { (content: Entity) -> Channel in InvidiousAPI.extractChannel(from: content.json) } configureTransformer(pathPattern("channels/*/latest"), requestMethods: [.get]) { (content: Entity) -> [Video] in content.json.arrayValue.map(InvidiousAPI.extractVideo) } configureTransformer(pathPattern("playlists/*"), requestMethods: [.get]) { (content: Entity) -> ChannelPlaylist in InvidiousAPI.extractChannelPlaylist(from: content.json) } configureTransformer(pathPattern("videos/*"), requestMethods: [.get]) { (content: Entity) -> Video in InvidiousAPI.extractVideo(from: content.json) } } private func pathPattern(_ path: String) -> String { "**\(InvidiousAPI.basePath)/\(path)" } private func basePathAppending(_ path: String) -> String { "\(InvidiousAPI.basePath)/\(path)" } private var cookieHeader: String { "SID=\(account.username)" } var popular: Resource? { resource(baseURL: account.url, path: "\(InvidiousAPI.basePath)/popular") } func trending(country: Country, category: TrendingCategory?) -> Resource { resource(baseURL: account.url, path: "\(InvidiousAPI.basePath)/trending") .withParam("type", category?.name) .withParam("region", country.rawValue) } var home: Resource? { resource(baseURL: account.url, path: "/feed/subscriptions") } var feed: Resource? { resource(baseURL: account.url, path: "\(InvidiousAPI.basePath)/auth/feed") } var subscriptions: Resource? { resource(baseURL: account.url, path: basePathAppending("auth/subscriptions")) } func subscribe(_ channelID: String, onCompletion: @escaping () -> Void = {}) { resource(baseURL: account.url, path: basePathAppending("auth/subscriptions")) .child(channelID) .request(.post) .onCompletion { _ in onCompletion() } } func unsubscribe(_ channelID: String, onCompletion: @escaping () -> Void) { resource(baseURL: account.url, path: basePathAppending("auth/subscriptions")) .child(channelID) .request(.delete) .onCompletion { _ in onCompletion() } } func channel(_ id: String) -> Resource { resource(baseURL: account.url, path: basePathAppending("channels/\(id)")) } func channelVideos(_ id: String) -> Resource { resource(baseURL: account.url, path: basePathAppending("channels/\(id)/latest")) } func video(_ id: String) -> Resource { resource(baseURL: account.url, path: basePathAppending("videos/\(id)")) } var playlists: Resource? { if account.isNil || account.anonymous { return nil } return resource(baseURL: account.url, path: basePathAppending("auth/playlists")) } func playlist(_ id: String) -> Resource? { resource(baseURL: account.url, path: basePathAppending("auth/playlists/\(id)")) } func playlistVideos(_ id: String) -> Resource? { playlist(id)?.child("videos") } func playlistVideo(_ playlistID: String, _ videoID: String) -> Resource? { playlist(playlistID)?.child("videos").child(videoID) } func channelPlaylist(_ id: String) -> Resource? { resource(baseURL: account.url, path: basePathAppending("playlists/\(id)")) } func search(_ query: SearchQuery) -> Resource { var resource = resource(baseURL: account.url, path: basePathAppending("search")) .withParam("q", searchQuery(query.query)) .withParam("sort_by", query.sortBy.parameter) .withParam("type", "all") if let date = query.date, date != .any { resource = resource.withParam("date", date.rawValue) } if let duration = query.duration, duration != .any { resource = resource.withParam("duration", duration.rawValue) } return resource } func searchSuggestions(query: String) -> Resource { resource(baseURL: account.url, path: basePathAppending("search/suggestions")) .withParam("q", query.lowercased()) } func comments(_: Video.ID, page _: String?) -> Resource? { nil } private func searchQuery(_ query: String) -> String { var searchQuery = query let url = URLComponents(string: query) if url != nil, url!.host == "youtu.be" { searchQuery = url!.path.replacingOccurrences(of: "/", with: "") } let queryItem = url?.queryItems?.first { item in item.name == "v" } if let id = queryItem?.value { searchQuery = id } return searchQuery } static func proxiedAsset(instance: Instance, asset: AVURLAsset) -> AVURLAsset? { guard let instanceURLComponents = URLComponents(string: instance.apiURL), var urlComponents = URLComponents(url: asset.url, resolvingAgainstBaseURL: false) else { return nil } urlComponents.scheme = instanceURLComponents.scheme urlComponents.host = instanceURLComponents.host guard let url = urlComponents.url else { return nil } return AVURLAsset(url: url) } static func extractVideo(from json: JSON) -> Video { let indexID: String? var id: Video.ID var publishedAt: Date? if let publishedInterval = json["published"].double { publishedAt = Date(timeIntervalSince1970: publishedInterval) } let videoID = json["videoId"].stringValue if let index = json["indexId"].string { indexID = index id = videoID + index } else { indexID = nil id = videoID } return Video( id: id, videoID: videoID, title: json["title"].stringValue, author: json["author"].stringValue, length: json["lengthSeconds"].doubleValue, published: json["publishedText"].stringValue, views: json["viewCount"].intValue, description: json["description"].stringValue, genre: json["genre"].stringValue, channel: extractChannel(from: json), thumbnails: extractThumbnails(from: json), indexID: indexID, live: json["liveNow"].boolValue, upcoming: json["isUpcoming"].boolValue, publishedAt: publishedAt, likes: json["likeCount"].int, dislikes: json["dislikeCount"].int, keywords: json["keywords"].arrayValue.map { $0.stringValue }, streams: extractStreams(from: json), related: extractRelated(from: json) ) } static func extractChannel(from json: JSON) -> Channel { let thumbnailURL = "https:\(json["authorThumbnails"].arrayValue.first?.dictionaryValue["url"]?.stringValue ?? "")" return Channel( id: json["authorId"].stringValue, name: json["author"].stringValue, thumbnailURL: URL(string: thumbnailURL), subscriptionsCount: json["subCount"].int, subscriptionsText: json["subCountText"].string, videos: json.dictionaryValue["latestVideos"]?.arrayValue.map(InvidiousAPI.extractVideo) ?? [] ) } static func extractChannelPlaylist(from json: JSON) -> ChannelPlaylist { let details = json.dictionaryValue return ChannelPlaylist( id: details["playlistId"]!.stringValue, title: details["title"]!.stringValue, thumbnailURL: details["playlistThumbnail"]?.url, channel: extractChannel(from: json), videos: details["videos"]?.arrayValue.compactMap(InvidiousAPI.extractVideo) ?? [] ) } private static func extractThumbnails(from details: JSON) -> [Thumbnail] { details["videoThumbnails"].arrayValue.map { json in Thumbnail(url: json["url"].url!, quality: .init(rawValue: json["quality"].string!)!) } } private static func extractStreams(from json: JSON) -> [Stream] { extractFormatStreams(from: json["formatStreams"].arrayValue) + extractAdaptiveFormats(from: json["adaptiveFormats"].arrayValue) } private static func extractFormatStreams(from streams: [JSON]) -> [Stream] { streams.map { SingleAssetStream( avAsset: AVURLAsset(url: $0["url"].url!), resolution: Stream.Resolution.from(resolution: $0["resolution"].stringValue), kind: .stream, encoding: $0["encoding"].stringValue ) } } private static func extractAdaptiveFormats(from streams: [JSON]) -> [Stream] { let audioAssetURL = streams.first { $0["type"].stringValue.starts(with: "audio/mp4") } guard audioAssetURL != nil else { return [] } let videoAssetsURLs = streams.filter { $0["type"].stringValue.starts(with: "video/mp4") && $0["encoding"].stringValue == "h264" } return videoAssetsURLs.map { Stream( audioAsset: AVURLAsset(url: audioAssetURL!["url"].url!), videoAsset: AVURLAsset(url: $0["url"].url!), resolution: Stream.Resolution.from(resolution: $0["resolution"].stringValue), kind: .adaptive, encoding: $0["encoding"].stringValue ) } } private static func extractRelated(from content: JSON) -> [Video] { content .dictionaryValue["recommendedVideos"]? .arrayValue .compactMap(extractVideo(from:)) ?? [] } }