//
// Copyright 2010-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License").
// You may not use this file except in compliance with the License.
// A copy of the License is located at
//
// http://aws.amazon.com/apache2.0
//
// or in the "license" file accompanying this file. This file is distributed
// on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
// express or implied. See the License for the specific language governing
// permissions and limitations under the License.
//

import Foundation
import AWSLex
import UIKit


class VoiceChatViewController: UIViewController, AWSLexVoiceButtonDelegate {
    
    @IBOutlet weak var voiceButton: AWSLexVoiceButton!
    @IBOutlet weak var input: UILabel!
    @IBOutlet weak var output: UILabel!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        (self.voiceButton as AWSLexVoiceButton).delegate = self
    }
    
    func voiceButton(_ button: AWSLexVoiceButton, on response: AWSLexVoiceButtonResponse) {
        DispatchQueue.main.async(execute: {
            // `inputTranscript` is the transcript of the voice input to the operation
            if let inputTranscript = response.inputTranscript {
                print("Input Transcript: " + inputTranscript)
                self.input.text = "\"\(inputTranscript)\""
            }
            
            if let outputText = response.outputText {
                print("Output Transcript: " + outputText)
                self.output.text = outputText
            } else {
                  self.output.text = ""
            }
        })
    }
    
    public func voiceButton(_ button: AWSLexVoiceButton, onError error: Error) {
        print("error \(error)")
    }
    
}
