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Cambridge dictionary #77: Speak words.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| // | ||
| // CambridgeStore.swift | ||
| // ReaderTranslator | ||
| // | ||
| // Created by Viktor Kushnerov on 9/3/20. | ||
| // Copyright © 2020 Viktor Kushnerov. All rights reserved. | ||
| // | ||
|
|
||
| import AVFoundation | ||
| import Combine | ||
| import Foundation | ||
| import SwiftSoup | ||
| import SwiftUI | ||
|
|
||
| private var cancellable: AnyCancellable? | ||
| private var player: AVAudioNetPlayer? | ||
|
|
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| struct CambridgeSentence: Hashable { | ||
| static let empty = Self(text: "No sentences", url: URL.empty) | ||
|
|
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| let text: String | ||
| let url: URL | ||
| } | ||
|
|
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| typealias CambridgeSentences = [CambridgeSentence] | ||
|
|
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| final class CambridgeStore: NSObject, ObservableObject { | ||
| private override init() { super.init() } | ||
| static var shared = CambridgeStore() | ||
|
|
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| @Published var audioRate: Float = 1 | ||
| @Published var word = "" | ||
|
|
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| private let defaultURL = "https://dictionary.cambridge.org/dictionary/english-russian/" | ||
| private var audioUrls = Stack<URL>() | ||
|
|
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| func fetchInfo(text: String) -> AnyPublisher<Bool, Never> { | ||
| let text = text.encodeUrl | ||
| guard let url = URL(string: "\(defaultURL)\(text)") else { | ||
| return Just(false).eraseToAnyPublisher() | ||
| } | ||
|
|
||
| return URLSession.shared.dataTaskPublisher(for: url) | ||
| .map { | ||
| guard let html = String(data: $0.data, encoding: .utf8) else { return false } | ||
| do { | ||
| let document = try SwiftSoup.parse(html) | ||
|
|
||
| self.audioUrls.removeAll() | ||
| let isBreExist = self.addAudio(selector: ".uk [type='audio/mpeg']", document: document) | ||
| let isAmeExist = self.addAudio(selector: ".us [type='audio/mpeg']", document: document) | ||
|
|
||
| return isBreExist || isAmeExist | ||
| } catch { | ||
| Logger.log(type: .error, value: error) | ||
| } | ||
|
|
||
| return false | ||
| } | ||
| .catch { _ in | ||
| Just(false) | ||
| } | ||
| .eraseToAnyPublisher() | ||
| } | ||
| } | ||
|
|
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| extension CambridgeStore { | ||
| func addAudio(url: URL) { | ||
| audioUrls.push(url) | ||
| } | ||
|
|
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| private func addAudio(selector: String, document: Document) -> Bool { | ||
| do { | ||
| guard let elm = try document.select(selector).first else { return false } | ||
| let string = try elm.attr("src") | ||
| guard let url = URL(string: "https://dictionary.cambridge.org/\(string)") else { return false } | ||
|
|
||
| addAudio(url: url) | ||
| return true | ||
| } catch { | ||
| Logger.log(type: .error, value: error) | ||
| } | ||
| return false | ||
| } | ||
| } | ||
|
|
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| extension CambridgeStore { | ||
| func play() { | ||
| guard let url = audioUrls.pop() else { return } | ||
|
|
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| if AudioStore.shared.isSpeakWords { | ||
| player = AVAudioNetPlayer() | ||
| player?.delegate = self | ||
| player?.play(url: url) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| extension CambridgeStore: AVAudioNetPlayerDelegate { | ||
| func audioPlayerLoadDidFinishDidOccur() {} | ||
|
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| func audioPlayerCreateSuccessOccur(player: AVAudioPlayer) { | ||
| player.enableRate = true | ||
| player.rate = audioRate | ||
| player.volume = AudioStore.shared.wordsVolume | ||
| player.play() | ||
| } | ||
|
|
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| func audioPlayerLoadErrorDidOccur() { play() } | ||
| func audioPlayerCreateErrorDidOccur() { play() } | ||
|
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| func audioPlayerDidFinishPlaying(_: AVAudioPlayer, successfully _: Bool) { play() } | ||
| func audioPlayerDecodeErrorDidOccur(_: AVAudioPlayer, error _: Error?) { play() } | ||
| } |
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