gaze6.swift

import Foundation
import AVFoundation
import Combine

var nextPage = PassthroughSubject<Void,Never>()
var reporter = PassthroughSubject<String, Never>()

class speaking: NSObject, AVSpeechSynthesizerDelegate {
    var synth:AVSpeechSynthesizer!
    var lastWords = ""
    
    override init() {
        super.init()
        synth = AVSpeechSynthesizer()
        
    }
    
    func speaker(words:[String]) {
        lastWords = String(words.last!)
        for word in words {
            let utterance = AVSpeechUtterance(string: word)
            utterance.voice = AVSpeechSynthesisVoice(language: "en-US")
            utterance.rate = 0.5
            utterance.postUtteranceDelay = 0.1
            synth.delegate = self
            synth.speak(utterance)
        }
    }
    

    func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer,
                      didFinish utterance: AVSpeechUtterance) {
        if utterance.speechString == lastWords {
            nextPage.send()
        }
    }
    
    func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer,
                           didStart utterance: AVSpeechUtterance) {
        reporter.send(utterance.speechString)
    }
    
    func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer, willSpeakRangeOfSpeechString characterRange: NSRange, utterance: AVSpeechUtterance) {
    }
}