intaleq/siro_rider/lib/controller/functions/tts.dart

import 'dart:io';
import 'package:siro_rider/constant/box_name.dart';
import 'package:flutter/material.dart';
import 'package:flutter_tts/flutter_tts.dart';
import 'package:get/get.dart';

import '../../main.dart';

class TextToSpeechController extends GetxController {
  final flutterTts = FlutterTts();

  @override
  void onInit() {
    super.onInit();
    initTts();
  }

  @override
  void onClose() {
    flutterTts.stop(); // Stop any ongoing TTS
    super.onClose();
  }

  // Initialize TTS engine with language check
  Future<void> initTts() async {
    try {
      String langCode = box.read(BoxName.lang) ?? 'ar-SA';
      if (langCode == 'ar') langCode = 'ar-SA';
      if (langCode == 'en') langCode = 'en-US';

      bool isAvailable = await flutterTts.isLanguageAvailable(langCode);
      if (!isAvailable) {
        if (langCode.startsWith('ar')) {
          // Try to find ANY available Arabic language
          List<dynamic> languages = await flutterTts.getLanguages;
          String? fallbackAr = languages
              .cast<String>()
              .firstWhere((l) => l.startsWith('ar'), orElse: () => '');
          if (fallbackAr != null && fallbackAr.isNotEmpty) {
            langCode = fallbackAr;
            isAvailable = true;
          }
        }
        if (!isAvailable) langCode = 'en-US';
      }

      await flutterTts.setLanguage(langCode);
      await flutterTts.setSpeechRate(0.5);
      await flutterTts.setVolume(1.0);

      if (Platform.isIOS) {
        await flutterTts.setIosAudioCategory(
          IosTextToSpeechAudioCategory.playback,
          [
            IosTextToSpeechAudioCategoryOptions.mixWithOthers,
            IosTextToSpeechAudioCategoryOptions.duckOthers,
          ],
        );
      }
    } catch (error) {
      print('TTS Init Error: $error');
    }
  }

  // Function to speak the given text (stops current speech first)
  Future<void> speakText(String text) async {
    if (text.isEmpty) return;
    try {
      await flutterTts.stop();
      await flutterTts.speak(text);
    } catch (error) {
      print('Failed to speak text: $error');
    }
  }
}