Added report functionality and Dropbox connection

2026-08-13 17:43:42 -05:00 · 2026-08-13 17:43:42 -05:00 · c7494eda92
commit c7494eda92
parent 483fbeafb6
8 changed files with 614 additions and 2 deletions
--- a/lib/screens/report_screen.dart
+++ b/lib/screens/report_screen.dart
@ -0,0 +1,172 @@
+import 'package:flutter/material.dart';
+import 'package:intl/intl.dart';
+import 'package:printing/printing.dart';
+import 'package:provider/provider.dart';
+
+import '../services/app_state.dart';
+import '../services/fuel_report.dart';
+import '../services/fuel_report_pdf.dart';
+
+class ReportScreen extends StatefulWidget {
+  const ReportScreen({super.key});
+
+  @override
+  State<ReportScreen> createState() => _ReportScreenState();
+}
+
+class _ReportScreenState extends State<ReportScreen> {
+  static final _dateFormat = DateFormat.yMMMd();
+
+  DateTime? _startDate;
+  DateTime? _endDate;
+  bool _busy = false;
+
+  Future<void> _pickDate({required bool isStart}) async {
+    final now = DateTime.now();
+    final picked = await showDatePicker(
+      context: context,
+      initialDate: (isStart ? _startDate : _endDate) ?? now,
+      firstDate: DateTime(2000),
+      lastDate: now,
+    );
+    if (picked == null) return;
+    setState(() {
+      if (isStart) {
+        _startDate = picked;
+      } else {
+        _endDate = picked;
+      }
+    });
+  }
+
+  Future<void> _share(FuelReport report) async {
+    setState(() => _busy = true);
+    try {
+      final bytes = await buildFuelReportPdf(report);
+      await Printing.sharePdf(bytes: bytes, filename: fuelReportFileName(report));
+    } finally {
+      if (mounted) setState(() => _busy = false);
+    }
+  }
+
+  Future<void> _print(FuelReport report) async {
+    setState(() => _busy = true);
+    try {
+      final bytes = await buildFuelReportPdf(report);
+      await Printing.layoutPdf(onLayout: (_) async => bytes, name: fuelReportFileName(report));
+    } finally {
+      if (mounted) setState(() => _busy = false);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final appState = context.watch<AppState>();
+
+    String? rangeError;
+    FuelReport? report;
+    if (_startDate != null && _endDate != null) {
+      if (_endDate!.isBefore(_startDate!)) {
+        rangeError = 'End date must be on or after the start date.';
+      } else {
+        report = buildFuelReport(
+          vehicles: appState.vehicles,
+          fuelEntries: appState.fuelEntries,
+          startDate: _startDate!,
+          endDate: _endDate!,
+        );
+      }
+    }
+
+    return Scaffold(
+      appBar: AppBar(title: const Text('Fuel Report')),
+      body: ListView(
+        padding: const EdgeInsets.all(16),
+        children: [
+          Row(
+            children: [
+              Expanded(
+                child: OutlinedButton(
+                  onPressed: () => _pickDate(isStart: true),
+                  child: Text(_startDate == null ? 'Start date' : _dateFormat.format(_startDate!)),
+                ),
+              ),
+              const SizedBox(width: 12),
+              Expanded(
+                child: OutlinedButton(
+                  onPressed: () => _pickDate(isStart: false),
+                  child: Text(_endDate == null ? 'End date' : _dateFormat.format(_endDate!)),
+                ),
+              ),
+            ],
+          ),
+          if (rangeError != null) ...[
+            const SizedBox(height: 8),
+            Text(rangeError, style: TextStyle(color: Theme.of(context).colorScheme.error)),
+          ],
+          const SizedBox(height: 16),
+          if (report == null)
+            const Padding(
+              padding: EdgeInsets.symmetric(vertical: 24),
+              child: Text('Choose a start and end date to generate a report.'),
+            )
+          else if (report.rows.isEmpty)
+            const Padding(
+              padding: EdgeInsets.symmetric(vertical: 24),
+              child: Text('No vehicles had a receipted fuel entry in that date range.'),
+            )
+          else ...[
+            for (final row in report.rows)
+              Card(
+                child: ListTile(
+                  title: Text(row.vehicle.displayLabel),
+                  subtitle: Text(
+                    'VIN: ${row.vehicle.vin}\n${row.entryCount} receipted '
+                    'entr${row.entryCount == 1 ? 'y' : 'ies'}',
+                  ),
+                  isThreeLine: true,
+                  trailing: Column(
+                    mainAxisAlignment: MainAxisAlignment.center,
+                    crossAxisAlignment: CrossAxisAlignment.end,
+                    children: [
+                      Text('${row.totalGallons.toStringAsFixed(3)} gal'),
+                      Text(NumberFormat.simpleCurrency().format(row.totalCost)),
+                    ],
+                  ),
+                ),
+              ),
+            const Divider(height: 32),
+            ListTile(
+              title: const Text('Total', style: TextStyle(fontWeight: FontWeight.bold)),
+              trailing: Text(
+                '${report.totalGallons.toStringAsFixed(3)} gal · '
+                '${NumberFormat.simpleCurrency().format(report.totalCost)}',
+                style: const TextStyle(fontWeight: FontWeight.bold),
+              ),
+            ),
+            const SizedBox(height: 16),
+            Row(
+              children: [
+                Expanded(
+                  child: FilledButton.icon(
+                    onPressed: _busy ? null : () => _share(report!),
+                    icon: const Icon(Icons.share_outlined),
+                    label: const Text('Share'),
+                  ),
+                ),
+                const SizedBox(width: 12),
+                Expanded(
+                  child: OutlinedButton.icon(
+                    onPressed: _busy ? null : () => _print(report!),
+                    icon: const Icon(Icons.print_outlined),
+                    label: const Text('Print'),
+                  ),
+                ),
+              ],
+            ),
+          ],
+        ],
+      ),
+    );
+  }
+}