245 lines
12 KiB
Dart
245 lines
12 KiB
Dart
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:pdf/pdf.dart';
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import 'package:pdf/widgets.dart' as pw;
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import 'package:share_plus/share_plus.dart';
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import '../../core/app_colors.dart';
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import '../../database/db_helper.dart';
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class ExportPdfScreen extends StatefulWidget {
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const ExportPdfScreen({super.key});
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@override State<ExportPdfScreen> createState() => _ExportPdfScreenState();
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}
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class _ExportPdfScreenState extends State<ExportPdfScreen> {
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bool _generating = false;
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String? _lastPath;
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pw.TableRow _pdfRow(String label, String value, {bool isHeader = false}) =>
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pw.TableRow(
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decoration: isHeader ? pw.BoxDecoration(color: PdfColors.grey100) : null,
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children: [
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pw.Padding(padding: const pw.EdgeInsets.all(6),
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child: pw.Text(label, style: pw.TextStyle(
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fontSize: 10, fontWeight: isHeader ? pw.FontWeight.bold : null))),
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pw.Padding(padding: const pw.EdgeInsets.all(6),
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child: pw.Text(value, style: pw.TextStyle(
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fontSize: 10, fontWeight: pw.FontWeight.bold))),
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]);
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Future<void> _generatePdf() async {
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setState(() => _generating = true);
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try {
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final stats = await DbHelper.getAdminStats();
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final colonias = await DbHelper.getReportesByColonia();
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final incidentes = await DbHelper.getIncidentesByRoute();
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final reviews = await DbHelper.getReviewSummaryByColonia();
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final now = DateTime.now();
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const meses = ['','Enero','Febrero','Marzo','Abril','Mayo','Junio',
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'Julio','Agosto','Septiembre','Octubre','Noviembre','Diciembre'];
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final pdf = pw.Document();
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pdf.addPage(pw.MultiPage(
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pageFormat: PdfPageFormat.a4,
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margin: const pw.EdgeInsets.all(32),
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header: (ctx) => pw.Column(children: [
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pw.Row(mainAxisAlignment: pw.MainAxisAlignment.spaceBetween, children: [
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pw.Column(crossAxisAlignment: pw.CrossAxisAlignment.start, children: [
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pw.Text('H. AYUNTAMIENTO DE CELAYA', style: pw.TextStyle(
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fontSize: 14, fontWeight: pw.FontWeight.bold,
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color: PdfColor.fromHex('6D1E3A'))),
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pw.Text('Direccion de Servicios Publicos',
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style: const pw.TextStyle(fontSize: 11, color: PdfColors.grey700)),
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pw.Text('Sistema de Recoleccion de Residuos',
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style: const pw.TextStyle(fontSize: 10, color: PdfColors.grey600)),
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]),
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pw.Column(crossAxisAlignment: pw.CrossAxisAlignment.end, children: [
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pw.Text('REPORTE MENSUAL', style: pw.TextStyle(
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fontSize: 12, fontWeight: pw.FontWeight.bold,
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color: PdfColor.fromHex('6D1E3A'))),
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pw.Text('${meses[now.month]} ${now.year}',
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style: const pw.TextStyle(fontSize: 11)),
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pw.Text('Generado: ${now.day}/${now.month}/${now.year}',
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style: const pw.TextStyle(fontSize: 9, color: PdfColors.grey600)),
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]),
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]),
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pw.Divider(color: PdfColor.fromHex('C9A84C'), thickness: 2),
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pw.SizedBox(height: 8),
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]),
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build: (ctx) => [
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pw.Text('RESUMEN EJECUTIVO', style: pw.TextStyle(
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fontSize: 13, fontWeight: pw.FontWeight.bold,
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color: PdfColor.fromHex('6D1E3A'))),
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pw.SizedBox(height: 8),
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pw.Table(
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border: pw.TableBorder.all(color: PdfColors.grey300),
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columnWidths: {0: const pw.FlexColumnWidth(2), 1: const pw.FlexColumnWidth(1)},
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children: [
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_pdfRow('Total de reportes ciudadanos', '${stats["total_reportes"]}', isHeader: true),
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_pdfRow('Total de resenas recibidas', '${stats["total_reviews"]}'),
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_pdfRow('Calificacion promedio',
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'${(stats["avg_rating"] as double? ?? 0).toStringAsFixed(2)} / 5.0'),
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_pdfRow('Alertas activas', '${stats["alertas_activas"]}'),
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_pdfRow('Conductores', '${stats["total_conductores"]}'),
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]),
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pw.SizedBox(height: 20),
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if (colonias.isNotEmpty) ...[
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pw.Text('REPORTES POR COLONIA', style: pw.TextStyle(
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fontSize: 13, fontWeight: pw.FontWeight.bold,
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color: PdfColor.fromHex('6D1E3A'))),
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pw.SizedBox(height: 8),
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pw.Table(
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border: pw.TableBorder.all(color: PdfColors.grey300),
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columnWidths: {
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0: const pw.FlexColumnWidth(3), 1: const pw.FlexColumnWidth(1),
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2: const pw.FlexColumnWidth(1), 3: const pw.FlexColumnWidth(1),
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},
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children: [
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pw.TableRow(
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decoration: pw.BoxDecoration(color: PdfColor.fromHex('6D1E3A')),
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children: ['Colonia','Total','Resueltos','Pendientes'].map((h) =>
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pw.Padding(padding: const pw.EdgeInsets.all(6),
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child: pw.Text(h, style: pw.TextStyle(color: PdfColors.white,
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fontWeight: pw.FontWeight.bold, fontSize: 10)))).toList()),
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...colonias.map((c) {
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final total = c['total'] as int? ?? 0;
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final res = c['resueltos'] as int? ?? 0;
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return pw.TableRow(children: [
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c['colonia'] as String? ?? '', '$total', '$res', '${total - res}',
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].map((v) => pw.Padding(padding: const pw.EdgeInsets.all(5),
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child: pw.Text(v, style: const pw.TextStyle(fontSize: 9)))).toList());
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}),
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]),
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pw.SizedBox(height: 20),
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],
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if (incidentes.isNotEmpty) ...[
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pw.Text('INCIDENTES POR RUTA', style: pw.TextStyle(
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fontSize: 13, fontWeight: pw.FontWeight.bold,
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color: PdfColor.fromHex('6D1E3A'))),
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pw.SizedBox(height: 8),
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pw.Table(
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border: pw.TableBorder.all(color: PdfColors.grey300),
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columnWidths: {0: const pw.FlexColumnWidth(2), 1: const pw.FlexColumnWidth(1)},
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children: [
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pw.TableRow(decoration: pw.BoxDecoration(color: PdfColor.fromHex('6D1E3A')),
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children: ['Ruta','Incidentes'].map((h) => pw.Padding(
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padding: const pw.EdgeInsets.all(6),
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child: pw.Text(h, style: pw.TextStyle(color: PdfColors.white,
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fontWeight: pw.FontWeight.bold, fontSize: 10)))).toList()),
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...incidentes.map((r) => pw.TableRow(children: [
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r['route_id'] as String? ?? '', '${r["total"]}',
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].map((v) => pw.Padding(padding: const pw.EdgeInsets.all(5),
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child: pw.Text(v, style: const pw.TextStyle(fontSize: 9)))).toList())),
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]),
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pw.SizedBox(height: 20),
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],
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if (reviews.isNotEmpty) ...[
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pw.Text('CALIFICACIONES POR COLONIA', style: pw.TextStyle(
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fontSize: 13, fontWeight: pw.FontWeight.bold,
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color: PdfColor.fromHex('6D1E3A'))),
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pw.SizedBox(height: 8),
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pw.Table(
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border: pw.TableBorder.all(color: PdfColors.grey300),
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columnWidths: {0: const pw.FlexColumnWidth(3),
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1: const pw.FlexColumnWidth(1), 2: const pw.FlexColumnWidth(1)},
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children: [
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pw.TableRow(decoration: pw.BoxDecoration(color: PdfColor.fromHex('6D1E3A')),
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children: ['Colonia','Promedio','Total'].map((h) => pw.Padding(
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padding: const pw.EdgeInsets.all(6),
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child: pw.Text(h, style: pw.TextStyle(color: PdfColors.white,
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fontWeight: pw.FontWeight.bold, fontSize: 10)))).toList()),
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...reviews.map((r) => pw.TableRow(children: [
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r['colonia'] as String? ?? '',
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'${(r["promedio"] as num? ?? 0).toStringAsFixed(1)}/5',
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'${r["total"]}',
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].map((v) => pw.Padding(padding: const pw.EdgeInsets.all(5),
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child: pw.Text(v, style: const pw.TextStyle(fontSize: 9)))).toList())),
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]),
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pw.SizedBox(height: 20),
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],
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pw.Divider(color: PdfColor.fromHex('C9A84C')),
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pw.Text('Celaya Limpia - H. Ayuntamiento de Celaya, Gto. - ${now.year}',
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style: const pw.TextStyle(fontSize: 8, color: PdfColors.grey500),
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textAlign: pw.TextAlign.center),
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],
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));
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// Guardar en directorio temporal y compartir con share_plus
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final bytes = await pdf.save();
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final dir = await getTemporaryDirectory();
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final file = File('${dir.path}/reporte_celaya_${now.month}_${now.year}.pdf');
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await file.writeAsBytes(bytes);
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setState(() => _lastPath = file.path);
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await Share.shareXFiles(
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[XFile(file.path, mimeType: 'application/pdf')],
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subject: 'Reporte Mensual Celaya Limpia - ${meses[now.month]} ${now.year}',
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);
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} catch (e) {
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if (mounted) ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('Error al generar PDF: $e'),
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backgroundColor: AppColors.rojoError));
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}
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if (mounted) setState(() => _generating = false);
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}
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@override
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Widget build(BuildContext context) => Scaffold(
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backgroundColor: AppColors.grisFondo,
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appBar: AppBar(
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backgroundColor: AppColors.guindaPrimary, foregroundColor: Colors.white,
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title: const Text('Exportar Reporte PDF'),
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bottom: PreferredSize(preferredSize: const Size.fromHeight(4),
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child: Container(height: 4, color: AppColors.dorado))),
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body: Center(child: Padding(padding: const EdgeInsets.all(32), child: Column(
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mainAxisAlignment: MainAxisAlignment.center, children: [
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Container(width: 100, height: 100,
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decoration: BoxDecoration(color: AppColors.guindaPrimary.withOpacity(0.1),
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shape: BoxShape.circle),
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child: const Icon(Icons.picture_as_pdf, size: 52, color: AppColors.guindaPrimary)),
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const SizedBox(height: 24),
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const Text('Reporte Mensual', style: TextStyle(fontSize: 22,
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fontWeight: FontWeight.bold, color: AppColors.guindaPrimary)),
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const SizedBox(height: 8),
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const Text('Genera un PDF con el resumen completo:\nreportes, incidentes y calificaciones.',
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textAlign: TextAlign.center,
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style: TextStyle(color: AppColors.grisTexto)),
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const SizedBox(height: 32),
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SizedBox(width: double.infinity, height: 52,
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child: ElevatedButton.icon(
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onPressed: _generating ? null : _generatePdf,
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style: ElevatedButton.styleFrom(
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backgroundColor: AppColors.guindaPrimary, foregroundColor: Colors.white,
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10))),
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icon: _generating
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? const SizedBox(width: 20, height: 20,
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child: CircularProgressIndicator(color: Colors.white, strokeWidth: 2))
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: const Icon(Icons.download),
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label: Text(_generating ? 'Generando...' : 'Generar y Compartir PDF',
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style: const TextStyle(fontWeight: FontWeight.bold)))),
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if (_lastPath != null) ...[
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const SizedBox(height: 16),
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Container(padding: const EdgeInsets.all(10),
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decoration: BoxDecoration(color: AppColors.verdeExito.withOpacity(0.1),
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borderRadius: BorderRadius.circular(8),
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border: Border.all(color: AppColors.verdeExito.withOpacity(0.3))),
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child: Row(children: [
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const Icon(Icons.check_circle, color: AppColors.verdeExito, size: 18),
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const SizedBox(width: 8),
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const Expanded(child: Text('PDF generado correctamente',
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style: TextStyle(color: AppColors.verdeExito, fontWeight: FontWeight.w600,
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fontSize: 13))),
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TextButton(onPressed: _generatePdf,
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child: const Text('Compartir de nuevo',
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style: TextStyle(fontSize: 11, color: AppColors.guindaPrimary))),
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])),
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],
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]))));
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}
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