import InstantSearchVoiceOverlay

class ViewController: UIViewController {
    
    let voiceOverlayController = VoiceOverlayController()
    
    @objc func voiceButtonTapped() {
        
        voiceOverlayController.start(on: self, textHandler: { (text, final) in
            print("voice output: \(String(describing: text))")
            print("voice output: is it final? \(String(describing: final))")
        }, errorHandler: { (error) in
            print("voice output: error \(String(describing: error))")
        })
    }

/// Specifies whether the overlay directly starts recording (true), 
/// or if it requires the user to click the mic (false). Defaults to true.
voiceOverlayController.settings.autoStart = true

/// Specifies whether the overlay stops recording after the user stops talking for `autoStopTimeout`
/// seconds (true), or if it requires the user to click the mic (false). Defaults to true.
voiceOverlayController.settings.autoStop = true

/// When autoStop is set to true, autoStopTimeout determines the amount of
/// silence time of the user that causes the recording to stop. Defaults to 2.
voiceOverlayController.settings.autoStopTimeout = 2

/// The layout and style of all screens of the voice overlay.
voiceOverlayController.settings.layout.<someScreen>.<someConstant>

// Use XCode autocomplete to see all possible screens and constants that are customisable.
// Examples:

/// The voice suggestions that appear in bullet points
voiceOverlayController.settings.layout.inputScreen.subtitleBulletList = ["Suggestion1", "Sug2"]
/// Change the title of the input screen when the recording is ongoing.
voiceOverlayController.settings.layout.inputScreen.titleListening = "my custom title"
/// Change the background color of the permission screen.
voiceOverlayController.settings.layout.permissionScreen.backgroundColor = UIColor.red
/// And many more...

lazy var voiceOverlayController: VoiceOverlayController = {
  let recordableHandler = {
    return SpeechController(locale: Locale(identifier: "en_US"))
  }
  return VoiceOverlayController(speechControllerHandler: recordableHandler)
}()

// Second way to listen to recording through delegate
func recording(text: String?, final: Bool?, error: Error?) {
    if let error = error {
        print("delegate: error \(error)")
    }
    
    if error == nil {
        print("delegate: text \(text)")
    }
}

/// Whether or not to show a result screen after the recording is finished.
voiceOverlayController.settings.showResultScreen = true

/// Timeout for showing the result screen in case no resultScreenText is provided on time.
voiceOverlayController.settings.showResultScreenTimeout = 2

/// Time for showing the result screen with the provided resultScreenText.
voiceOverlayController.settings.showResultScreenTime = 4

/// The processed result screen text that should be appear in the result screen.
voiceOverlayController.settings.resultScreenText = NSAttributedString(string: myString, attributes: myAttributes)

voiceOverlayController.start(on: self, textHandler: { (text, final) in
    print("getting \(String(describing: text))")
    print("is it final? \(String(describing: final))")

    if final {
        // Process the result to post in the result screen.
        // The timer here simulates a network processing call that took 1.5 seconds.
        Timer.scheduledTimer(withTimeInterval: 1.5, repeats: false, block: { (_) in
            let myString = text
            let myAttribute = [ NSAttributedString.Key.foregroundColor: UIColor.red ]
            let myAttrString = NSAttributedString(string: myString, attributes: myAttribute)

            self.voiceOverlayController.settings.resultScreenText = myAttrString
        })
    }
}, errorHandler: { (error) in
    print("error \(String(describing: error))")
}, resultScreenHandler: { (text) in
    print("Result Screen: \(text)")
})