didvan-app/lib/views/direct/direct_state.dart

import 'dart:io';

import 'package:didvan/models/enums.dart';
import 'package:didvan/models/message_data/message_data.dart';
import 'package:didvan/models/message_data/news_attachment.dart';
import 'package:didvan/models/message_data/radar_attachment.dart';
import 'package:didvan/providers/core.dart';
import 'package:didvan/services/media/media.dart';
import 'package:didvan/services/media/voice.dart';
import 'package:didvan/services/network/request.dart';
import 'package:didvan/services/network/request_helper.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter_vibrate/flutter_vibrate.dart';
import 'package:http/http.dart' as http;
import 'package:path_provider/path_provider.dart';
import 'package:record/record.dart';

class DirectState extends CoreProvier {
  final _recorder = AudioRecorder();
  final List<MessageData> messages = [];
  late final int typeId;
  final Map<String, List<int>> dailyMessages = {};
  final List<int> deletionQueue = [];

  String? text;
  NewsAttachment? replyNews;
  RadarAttachment? replyRadar;
  File? recordedFile;
  Uint8List? recordedFileBytes;
  int? audioDuration;
  String? path;

  bool isRecording = false;

  Future<void> getMessages() async {
    appState = AppState.busy;

    final RequestService service = RequestService(RequestHelper.direct(typeId));
    await service.httpGet();
    if (service.isSuccess) {
      messages.clear();

      final messageDatas = service.result['messages'];
      for (var i = 0; i < messageDatas.length; i++) {
        messages.add(MessageData.fromJson(messageDatas[i]));
        _addToDailyGrouped(messages.last);
      }
      appState = AppState.idle;
      return;
    }
    appState = AppState.failed;
  }

  void deleteRecordedFile() {
    recordedFile!.delete();
    recordedFile = null;
    notifyListeners();
    update();
  }

  Future<void> startRecording() async {
    text = null;
    await _recorder.hasPermission();
    if (!kIsWeb) {
      Vibrate.feedback(FeedbackType.medium);
    }
    isRecording = true;
    Directory? tempDir;
    if (!kIsWeb) {
      tempDir = await getDownloadsDirectory();
    }
    _recorder.start(const RecordConfig(),
        path: kIsWeb
            ? ''
            : '${tempDir!.path}/${DateTime.now().millisecondsSinceEpoch ~/ 1000}.m4a');
    notifyListeners();
  }

  Future<void> stopRecording({required bool sendImidiately}) async {
    path = await _recorder.stop();
    isRecording = false;
    if (path == null) {
      notifyListeners();
      return;
    }
    if (kIsWeb) {
      final Uri audioUri = Uri.parse(path!);
      final http.Response audioResponse = await http.get(audioUri);
      recordedFileBytes = audioResponse.bodyBytes;
    } else {
      recordedFile = File(path!);
    }
    if (sendImidiately) {
      await sendMessage();
    } else {
      notifyListeners();
    }
  }

  void delete() {
    for (var i = 0; i < deletionQueue.length; i++) {
      final service = RequestService(
        RequestHelper.deleteDirect(typeId, deletionQueue[i]),
      );
      service.delete();
      messages.removeWhere((element) => element.id == deletionQueue[i]);
    }
    deletionQueue.clear();
    notifyListeners();
  }

  void _addToDailyGrouped(MessageData message) {
    String createdAt = message.createdAt.replaceAll('T', ' ').split(' ').first;
    if (!dailyMessages.containsKey(createdAt)) {
      dailyMessages.addAll({
        createdAt: [message.id]
      });
    } else {
      dailyMessages[createdAt]!.add(message.id);
    }
  }

  Future<void> sendMessage() async {
    if ((text == null || text!.isEmpty) &&
        (recordedFile == null && recordedFileBytes == null)) return;
    MediaService.audioPlayer.stop();

    final body = {};

    if (text != null) {
      body.addAll({'text': text});
    }

    if (replyRadar != null) {
      body.addAll({'radarId': replyRadar!.id});
    }

    if (replyNews != null) {
      body.addAll({'newsId': replyNews!.id});
    }

    if (replyNews != null) {
      body.addAll({'newsId': replyNews!.id});
    }

    if (path != null) {
      final duration = await VoiceService.getDuration(src: path!);
      if (duration != null) {
        body.addAll({'duration': duration.inSeconds.toString()});
      }
    }

    final uploadFile = recordedFile;
    final uploadFileBytes = recordedFileBytes;
    text = null;
    recordedFile = null;
    recordedFileBytes = null;
    replyRadar = null;
    replyNews = null;
    path = null;
    notifyListeners();

    final service =
        RequestService(RequestHelper.sendDirectMessage(typeId), body: body);

    if (uploadFile == null && uploadFileBytes == null) {
      await service.post();

      if (service.isSuccess) {
        final message = service.result['message'];
        messages.insert(0, MessageData.fromJson(message));

        dailyMessages.clear();

        for (var i = 0; i < messages.length; i++) {
          _addToDailyGrouped(messages[i]);
        }
      }
    } else {
      messages.insert(
        0,
        MessageData(
          id: 0,
          writedByAdmin: false,
          readed: false,
          createdAt:
              DateTime.now().subtract(const Duration(minutes: 210)).toString(),
          text: text,
          audio: path,
          audioFile: uploadFile,
          radar: replyRadar,
          news: replyNews,
          audioDuration: audioDuration,
        ),
      );

      dailyMessages.clear();

      for (var i = 0; i < messages.length; i++) {
        _addToDailyGrouped(messages[i]);
      }

      if (kIsWeb) {
        await service.multipartBytes(
          file: uploadFileBytes!,
          method: 'POST',
          fieldName: 'audio',
          fileName: 'voice-message',
          mediaExtension: 'm4a',
          mediaFormat: 'audio',
        );
      } else {
        await service.multipart(
          file: Platform.isIOS
              ? File(uploadFile!.path.replaceAll('file://', ''))
              : uploadFile,
          method: 'POST',
          fieldName: 'audio',
          fileName: 'voice-message',
          mediaExtension: 'm4a',
          mediaFormat: 'audio',
        );
      }

      if (service.isSuccess) {
        final message = service.result['message'];
        final m = MessageData.fromJson(message);
        messages[0] = m;
        update();
      }
    }
  }
}