fbmobile/lib/core/viewmodels/upload_model.dart

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import 'dart:async';
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import 'dart:io';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_sharing_intent/flutter_sharing_intent.dart';
import 'package:flutter_sharing_intent/model/sharing_file.dart';
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import 'package:flutter_translate/flutter_translate.dart';
import 'package:logger/logger.dart';
import 'package:path/path.dart';
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import '../../locator.dart';
import '../enums/error_code.dart';
import '../enums/refresh_event.dart';
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import '../enums/viewstate.dart';
import '../error/rest_service_exception.dart';
import '../error/service_exception.dart';
import '../models/rest/rest_error.dart';
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import '../models/rest/uploaded_multi_response.dart';
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import '../models/rest/uploaded_response.dart';
import '../services/file_service.dart';
import '../services/link_service.dart';
import '../services/refresh_service.dart';
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import '../util/logger.dart';
import '../util/paste_util.dart';
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import 'base_model.dart';
class UploadModel extends BaseModel {
final Logger _logger = getLogger();
final FileService _fileService = locator<FileService>();
final LinkService _linkService = locator<LinkService>();
final RefreshService _refreshService = locator<RefreshService>();
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final TextEditingController _pasteTextController = TextEditingController();
bool pasteTextTouched = false;
late StreamSubscription _intentDataStreamSubscription;
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bool createMulti = false;
String? fileName;
List<PlatformFile>? paths;
String? _extension;
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bool loadingPath = false;
String? errorMessage;
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TextEditingController get pasteTextController => _pasteTextController;
void _parseIntentFiles(List<SharedFile> files) {
if (files.isNotEmpty) {
setStateView(ViewState.busy);
paths = files.map((sharedFile) {
_logger.d("Shared file name: ${basename(sharedFile.value ?? '')}");
_logger.d("Shared file path: ${sharedFile.value}");
_logger.d(
"Shared file size: ${File(sharedFile.value ?? '').lengthSync()}");
_logger.d("Shared file type: ${sharedFile.type}");
return PlatformFile.fromMap({
'path': sharedFile.value,
'name': basename(sharedFile.value!),
'size': File(sharedFile.value!).lengthSync(),
'bytes': null
});
}).toList();
setStateView(ViewState.idle);
}
}
void deleteIntentFile(String path) {
setStateView(ViewState.busy);
_logger.d("Removing path '$path' from $paths");
paths?.removeWhere((element) => element.path == path);
int length = paths!.length;
if (length == 0) {
paths = null;
}
setStateView(ViewState.idle);
}
void init() {
_pasteTextController.addListener(() {
pasteTextTouched = pasteTextController.text.isNotEmpty;
setStateBoolValue("PASTE_TEXT_TOUCHED", pasteTextTouched);
});
// For sharing images coming from outside the app while the app is in the memory
_intentDataStreamSubscription = FlutterSharingIntent.instance
.getMediaStream()
.listen((List<SharedFile> value) {
_logger.d("Retrieved ${value.length} files from intent");
_parseIntentFiles(value);
}, onError: (err) {
_errorIntentHandle(err);
});
// For sharing images coming from outside the app while the app is closed
FlutterSharingIntent.instance
.getInitialSharing()
.then((List<SharedFile> value) {
_logger.d("Retrieved ${value.length} files from inactive intent");
_parseIntentFiles(value);
});
}
void _errorIntentHandle(err) {
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setStateView(ViewState.busy);
errorMessage = translate('upload.retrieval_intent');
_logger.e('Error while retrieving shared data: $err');
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setStateView(ViewState.idle);
}
String? generatePasteLinks(Map<String, bool>? uploads, String url) {
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if (uploads != null && uploads.isNotEmpty) {
var links = '';
uploads.forEach((id, isMulti) {
if (isMulti && createMulti || !isMulti && !createMulti) {
links += '${PasteUtil.generateLink(url, id)}\n';
}
});
return links;
}
return null;
}
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void toggleCreateMulti() {
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setStateView(ViewState.busy);
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createMulti = !createMulti;
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setStateView(ViewState.idle);
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}
void openFileExplorer() async {
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setStateView(ViewState.busy);
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setStateMessage(translate('upload.file_explorer_open'));
loadingPath = true;
try {
paths = (await FilePicker.platform.pickFiles(
type: FileType.any,
allowMultiple: true,
withData: false,
withReadStream: true,
allowedExtensions: (_extension?.isNotEmpty ?? false)
? _extension?.replaceAll(' ', '').split(',')
: null,
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))
?.files;
} on PlatformException catch (e) {
_logger.e('Unsupported operation', error: e);
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} catch (ex) {
_logger.e('An unknown error occurred', error: ex);
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}
loadingPath = false;
fileName = paths != null ? paths!.map((e) => e.name).toString() : '...';
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setStateMessage(null);
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setStateView(ViewState.idle);
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}
void clearCachedFiles() async {
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setStateView(ViewState.busy);
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await FilePicker.platform.clearTemporaryFiles();
paths = null;
fileName = null;
errorMessage = null;
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setStateView(ViewState.idle);
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}
Future<Map<String, bool>?> upload() async {
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setStateView(ViewState.busy);
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setStateMessage(translate('upload.uploading_now'));
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Map<String, bool> uploadedPasteIds = {};
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try {
List<File>? files;
Map<String, String>? additionalFiles;
if (pasteTextController.text.isNotEmpty) {
additionalFiles = Map.from({
'paste-${(DateTime.now().millisecondsSinceEpoch / 1000).round()}.txt':
pasteTextController.text
});
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}
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if (paths != null && paths!.isNotEmpty) {
files = paths!.map((e) => File(e.path!)).toList();
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}
UploadedResponse response =
await _fileService.uploadPaste(files, additionalFiles);
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for (var element in response.data.ids) {
uploadedPasteIds.putIfAbsent(element, () => false);
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}
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if (createMulti && response.data.ids.length > 1) {
UploadedMultiResponse multiResponse =
await _fileService.uploadMultiPaste(response.data.ids);
uploadedPasteIds.putIfAbsent(multiResponse.data.urlId, () => true);
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}
clearCachedFiles();
_pasteTextController.clear();
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_refreshService.addEvent(RefreshEvent.refreshHistory);
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errorMessage = null;
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return uploadedPasteIds;
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} catch (e) {
if (e is RestServiceException) {
if (e.statusCode == HttpStatus.notFound) {
errorMessage = translate('upload.errors.not_found');
} else if (e.statusCode == HttpStatus.forbidden) {
errorMessage = translate('api.forbidden');
} else if (e.statusCode != HttpStatus.notFound &&
e.statusCode != HttpStatus.forbidden &&
e.responseBody is RestError &&
e.responseBody.message != null) {
if (e.statusCode == HttpStatus.badRequest) {
errorMessage = translate('api.bad_request',
args: {'reason': e.responseBody.message});
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} else {
errorMessage = translate('api.general_rest_error_payload',
args: {'message': e.responseBody.message});
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}
} else {
errorMessage = translate('api.general_rest_error');
}
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} else if (e is ServiceException && e.code == ErrorCode.socketError) {
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errorMessage = translate('api.socket_error');
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} else if (e is ServiceException && e.code == ErrorCode.socketTimeout) {
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errorMessage = translate('api.socket_timeout');
} else {
errorMessage = translate('app.unknown_error');
setStateMessage(null);
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setStateView(ViewState.idle);
_logger.e('An unknown error occurred', error: e);
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rethrow;
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}
}
setStateMessage(null);
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setStateView(ViewState.idle);
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return null;
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}
void openLink(String link) {
_linkService.open(link);
}
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@override
void dispose() {
_pasteTextController.dispose();
_intentDataStreamSubscription.cancel();
FlutterSharingIntent.instance.reset();
paths = null;
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super.dispose();
}
}