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import 'dart:convert';
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import 'dart:developer';
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import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:sn_progress_dialog/sn_progress_dialog.dart';
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import 'package:test_sa/controllers/api_routes/api_manager.dart';
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import 'package:test_sa/controllers/api_routes/urls.dart';
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import 'package:test_sa/modules/export_module/models/export_form_model.dart';
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import 'package:test_sa/modules/export_module/models/export_module_type.dart';
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import 'package:test_sa/new_views/app_style/app_color.dart';
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import 'package:test_sa/extensions/context_extension.dart';
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class ExportApiProvider extends ChangeNotifier {
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bool _isExporting = false;
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bool get isExporting => _isExporting;
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int? _stateCode;
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int? get stateCode => _stateCode;
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String? _errorMessage;
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String? get errorMessage => _errorMessage;
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Future<String?> exportData<T>(ExportRequest<T> exportRequest, ExportModuleType moduleType, BuildContext context) async {
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_isExporting = true;
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_errorMessage = null;
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notifyListeners();
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// Capture colors before showing dialog to avoid Provider context issues
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// Use isDarkNotListen to safely access provider without listening
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final backgroundColor = context.isDarkNotListen ? AppColor.containerDark : Colors.white;
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final textColor = context.isDarkNotListen ? AppColor.white10 : AppColor.white936;
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ProgressDialog pd = ProgressDialog(context: context);
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pd.show(
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max: 100,
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msg: 'Preparing export...',
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progressBgColor: Colors.transparent,
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progressValueColor: AppColor.primary10,
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msgFontWeight: FontWeight.normal,
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msgColor: textColor,
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valueColor: textColor,elevation: 4,
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msgFontSize: 16,
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backgroundColor: backgroundColor,
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);
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IOSink? sink;
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File? outputFile;
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try {
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final String apiUrl = _getApiUrlForModule(moduleType);
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final Map<String, dynamic> body = _buildRequestBody(exportRequest, moduleType);
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if (!context.mounted) return null;
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pd.update(msg: 'Sending request to server');
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log('📡 Sending export request...');
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final startTime = DateTime.now();
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final streamedResponse = await ApiManager.instance.postStreaming(apiUrl, body: body);
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_stateCode = streamedResponse.statusCode;
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final responseTime = DateTime.now().difference(startTime).inMilliseconds;
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log('✅ Response received in ${responseTime}ms - Status: ${streamedResponse.statusCode}');
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if (streamedResponse.statusCode >= 200 && streamedResponse.statusCode < 300) {
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final contentLength = streamedResponse.contentLength ?? 0;
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log('📊 Content length: ${contentLength > 0 ? "${(contentLength / 1024 / 1024).toStringAsFixed(2)} MB" : "Unknown"}');
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if (!context.mounted) {
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await streamedResponse.stream.drain();
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return null;
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}
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final String ext = _getFileExtension(exportRequest.format);
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final String dir = (await getApplicationDocumentsDirectory()).path;
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final String filePath = "$dir/${DateTime.now().millisecondsSinceEpoch}.$ext";
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outputFile = File(filePath);
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sink = outputFile.openWrite();
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int received = 0;
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int lastProgress = 15;
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final downloadStartTime = DateTime.now();
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pd.update(value: 15, msg: 'Exporting...');
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await for (var chunk in streamedResponse.stream) {
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sink.add(chunk);
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received += chunk.length;
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if (!context.mounted) {
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await sink.close();
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await outputFile.delete();
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return null;
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}
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if (contentLength > 0) {
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final progress = (15 + ((received / contentLength) * 70)).clamp(15, 85).toInt();
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if (progress > lastProgress) {
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lastProgress = progress;
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final downloadedMB = (received / 1024 / 1024).toStringAsFixed(2);
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final totalMB = (contentLength / 1024 / 1024).toStringAsFixed(2);
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pd.update(
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value: progress,
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msg: 'Exporting: $downloadedMB MB / $totalMB MB',
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);
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}
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} else {
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final downloadedMB = (received / 1024 / 1024).toStringAsFixed(2);
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pd.update(
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msg: 'Exporting: $downloadedMB MB',
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);
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}
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}
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await sink.close();
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sink = null;
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final downloadTime = DateTime.now().difference(downloadStartTime).inMilliseconds;
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final fileSizeMB = (received / 1024 / 1024).toStringAsFixed(2);
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final downloadSpeed = downloadTime > 0 ? ((received / 1024 / 1024) / (downloadTime / 1000)).toStringAsFixed(2) : 'N/A';
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if (!context.mounted) {
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await outputFile.delete();
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return null;
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}
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pd.close();
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final totalTime = DateTime.now().difference(startTime).inMilliseconds;
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return filePath;
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} else {
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if (context.mounted) {
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pd.close();
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}
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try {
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final responseBody = await streamedResponse.stream.bytesToString();
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final responseData = json.decode(responseBody);
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_errorMessage = responseData['message'] ?? 'Export failed';
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} catch (e) {
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log('❌ Error parsing error response: $e');
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_errorMessage = 'Export failed with status: ${streamedResponse.statusCode}';
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}
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return null;
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}
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} catch (error, stackTrace) {
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if (sink != null) {
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try {
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await sink.close();
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} catch (e) {
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log('⚠️ Error closing sink: $e');
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}
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}
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if (outputFile != null && await outputFile.exists()) {
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try {
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await outputFile.delete();
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log('🗑️ Deleted incomplete file');
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} catch (e) {
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log('⚠️ Error deleting incomplete file: $e');
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}
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}
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if (context.mounted) {
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pd.close();
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}
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log('❌ Error exporting data: $error');
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_stateCode = -1;
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_errorMessage = 'An error occurred during export: $error';
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return null;
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} finally {
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_isExporting = false;
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notifyListeners();
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log('🔚 Export process finished');
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}
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}
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String _getApiUrlForModule(ExportModuleType moduleType) {
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switch (moduleType) {
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case ExportModuleType.asset:
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return URLs.exportAsset;
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case ExportModuleType.callRequest:
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return URLs.exportAllWorkOrder;
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default:
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return URLs.exportAsset;
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}
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}
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String _getFileExtension(String format) {
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final formatLower = format.toLowerCase();
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switch (formatLower) {
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case 'excel':
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return 'xlsx';
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case 'pdf':
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return 'pdf';
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case 'word':
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case 'doc':
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return 'docx';
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case 'text':
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case 'txt':
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return 'txt';
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case 'csv':
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return 'csv';
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default:
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return formatLower;
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}
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}
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Map<String, dynamic> _buildRequestBody<T>(ExportRequest<T> exportRequest, ExportModuleType moduleType) {
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final Map<String, dynamic> body = {};
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if (exportRequest.searchModel != null) {
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try {
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final searchModelJson = (exportRequest.searchModel as dynamic).toJson() as Map<String, dynamic>;
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body.addAll(searchModelJson);
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} catch (e) {
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body['searchModel'] = exportRequest.searchModel;
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}
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}
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if (moduleType == ExportModuleType.callRequest) {
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_addCallRequestFields(body);
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}
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body['pageNo'] = exportRequest.pageNo;
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body['pageSize'] = exportRequest.pageSize;
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body['exportRequest'] = {
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'selectedColumns': exportRequest.selectedColumns,
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'format': exportRequest.format,
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};
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return body;
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}
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void _addCallRequestFields(Map<String, dynamic> body) {
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if (!body.containsKey('typeTransaction') || (body['typeTransaction'] as List?)?.isEmpty == true) {
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body['typeTransaction'] = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16];
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}
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if (!body.containsKey('statusTransaction') || (body['statusTransaction'] as List?)?.isEmpty == true) {
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body['statusTransaction'] = [1, 2, 4];
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}
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if (!body.containsKey('priority')) {
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body['priority'] = [];
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}
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if (!body.containsKey('displayData')) {
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body['displayData'] = [];
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}
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}
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void resetError() {
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_errorMessage = null;
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notifyListeners();
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}
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/// Print work order data as PDF
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Future<String?> printWorkOrder(int workOrderId, int moduleId, BuildContext context) async {
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_isExporting = true;
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_errorMessage = null;
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notifyListeners();
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// Capture colors before showing dialog to avoid Provider context issues
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// Use isDarkNotListen to safely access provider without listening
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final backgroundColor = context.isDarkNotListen ? AppColor.containerDark : Colors.white;
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final textColor = context.isDarkNotListen ? AppColor.white10 : AppColor.white936;
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ProgressDialog pd = ProgressDialog(context: context);
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pd.show(
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max: 100,
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msg: 'Preparing print',
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progressBgColor: Colors.transparent,
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progressValueColor: AppColor.primary10,
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msgFontWeight: FontWeight.normal,
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msgFontSize: 18,elevation: 2,
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valueColor: textColor,
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backgroundColor: backgroundColor,
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msgColor: textColor,
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);
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IOSink? sink;
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File? outputFile;
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try {
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if (!context.mounted) return null;
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pd.update(msg: 'Sending print request');
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log('📡 Sending print request...');
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final startTime = DateTime.now();
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// Prepare form data
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final Map<String, String> formData = {
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'properties': json.encode({
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'workOrderId': workOrderId,
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'moduleId': moduleId,
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}),
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};
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final streamedResponse = await ApiManager.instance.postFormDataStreaming(
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URLs.generateReport,
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body: formData
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);
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_stateCode = streamedResponse.statusCode;
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final responseTime = DateTime.now().difference(startTime).inMilliseconds;
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log('✅ Print response received in ${responseTime}ms - Status: ${streamedResponse.statusCode}');
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if (streamedResponse.statusCode >= 200 && streamedResponse.statusCode < 300) {
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final contentLength = streamedResponse.contentLength ?? 0;
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log('📊 Content length: ${contentLength > 0 ? "${(contentLength / 1024 / 1024).toStringAsFixed(2)} MB" : "Unknown"}');
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if (!context.mounted) {
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await streamedResponse.stream.drain();
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return null;
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}
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final String dir = (await getApplicationDocumentsDirectory()).path;
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final String filePath = "$dir/print_${DateTime.now().millisecondsSinceEpoch}.pdf";
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outputFile = File(filePath);
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sink = outputFile.openWrite();
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int received = 0;
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int lastProgress = 15;
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final downloadStartTime = DateTime.now();
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pd.update(value: 15, msg: 'Generating PDF...');
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await for (var chunk in streamedResponse.stream) {
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sink.add(chunk);
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received += chunk.length;
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if (!context.mounted) {
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await sink.close();
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await outputFile.delete();
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return null;
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}
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if (contentLength > 0) {
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final progress = (15 + ((received / contentLength) * 70)).clamp(15, 85).toInt();
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if (progress > lastProgress) {
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lastProgress = progress;
|
|
|
|
|
final downloadedMB = (received / 1024 / 1024).toStringAsFixed(2);
|
|
|
|
|
final totalMB = (contentLength / 1024 / 1024).toStringAsFixed(2);
|
|
|
|
|
pd.update(
|
|
|
|
|
value: progress,
|
|
|
|
|
msg: 'Generating PDF: $downloadedMB MB / $totalMB MB',
|
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
final downloadedMB = (received / 1024 / 1024).toStringAsFixed(2);
|
|
|
|
|
pd.update(
|
|
|
|
|
msg: 'Generating PDF: $downloadedMB MB',
|
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
await sink.close();
|
|
|
|
|
sink = null;
|
|
|
|
|
|
|
|
|
|
final downloadTime = DateTime.now().difference(downloadStartTime).inMilliseconds;
|
|
|
|
|
final fileSizeMB = (received / 1024 / 1024).toStringAsFixed(2);
|
|
|
|
|
log('✅ PDF generated successfully - Size: ${fileSizeMB} MB');
|
|
|
|
|
|
|
|
|
|
if (!context.mounted) {
|
|
|
|
|
await outputFile.delete();
|
|
|
|
|
return null;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pd.close();
|
|
|
|
|
return filePath;
|
|
|
|
|
} else {
|
|
|
|
|
if (context.mounted) {
|
|
|
|
|
pd.close();
|
|
|
|
|
}
|
|
|
|
|
try {
|
|
|
|
|
final responseBody = await streamedResponse.stream.bytesToString();
|
|
|
|
|
final responseData = json.decode(responseBody);
|
|
|
|
|
_errorMessage = responseData['message'] ?? 'Print failed';
|
|
|
|
|
} catch (e) {
|
|
|
|
|
log('❌ Error parsing print error response: $e');
|
|
|
|
|
_errorMessage = 'Print failed with status: ${streamedResponse.statusCode}';
|
|
|
|
|
}
|
|
|
|
|
return null;
|
|
|
|
|
}
|
|
|
|
|
} catch (error, stackTrace) {
|
|
|
|
|
if (sink != null) {
|
|
|
|
|
try {
|
|
|
|
|
await sink.close();
|
|
|
|
|
} catch (e) {
|
|
|
|
|
log('⚠️ Error closing sink: $e');
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (outputFile != null && await outputFile.exists()) {
|
|
|
|
|
try {
|
|
|
|
|
await outputFile.delete();
|
|
|
|
|
log('🗑️ Deleted incomplete file');
|
|
|
|
|
} catch (e) {
|
|
|
|
|
log('⚠️ Error deleting incomplete file: $e');
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (context.mounted) {
|
|
|
|
|
pd.close();
|
|
|
|
|
}
|
|
|
|
|
log('❌ Error printing data: $error');
|
|
|
|
|
_stateCode = -1;
|
|
|
|
|
_errorMessage = 'An error occurred during print: $error';
|
|
|
|
|
return null;
|
|
|
|
|
} finally {
|
|
|
|
|
_isExporting = false;
|
|
|
|
|
notifyListeners();
|
|
|
|
|
log('🔚 Print process finished');
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|