import 'package:flutter/cupertino.dart';
import 'package:just_audio/just_audio.dart';

class CallByVoice {
  final String lang;
  final String preVoice;
  final String ticketNo;
  final String postVoice;

  CallByVoice(this.ticketNo, {this.lang = 'en', @required this.preVoice, @required this.postVoice});

  final _player = AudioPlayer();

  start() async {
    // Create Pre Voice Players
    if (preVoice != null && preVoice.isNotEmpty) {
      await _player.setAsset('assets/voice_$lang/$preVoice');
      await _player.play();
    }

    // Create Ticket Number Voice Players
    final characters = ticketNo.characters.toList();
    for (int i = 0; i < characters.length; i++) {
      final no = characters[i];
      if (no.isNotEmpty) {
        await Future.delayed(const Duration(milliseconds: 200));

        await _player.stop();
        await _player.setAsset('assets/voice_$lang/$no.mp3');
        await _player.play();
      }
    }

    // Create Post Voice Players
    if (postVoice != null && postVoice.isNotEmpty) {
      await Future.delayed(const Duration(milliseconds: 1000));

      await _player.stop();
      await _player.setAsset('assets/voice_$lang/$postVoice');
      await _player.play();
    }

    _player.dispose();
  }

  stop() async {
    await _player.stop();
  }

}