feat: add scan page with record list and send logic

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-05-07 19:57:57 +08:00
parent c3b8ce02a2
commit 54103a4f96
1 changed files with 127 additions and 0 deletions
--- a/lib/pages/scan_page.dart
+++ b/lib/pages/scan_page.dart
@@ -0,0 +1,127 @@
+import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:pad_scanner/models/scan_record.dart';
+import 'package:pad_scanner/services/scanner_service.dart';
+import 'package:pad_scanner/services/api_service.dart';
+import 'package:pad_scanner/pages/settings_page.dart';
+
+class ScanPage extends StatefulWidget {
+  const ScanPage({super.key});
+
+  @override
+  State<ScanPage> createState() => _ScanPageState();
+}
+
+class _ScanPageState extends State<ScanPage> {
+  final _scannerService = ScannerService();
+  final _apiService = ApiService();
+  final _records = <ScanRecord>[];
+  String _status = 'Waiting for scan...';
+
+  @override
+  void initState() {
+    super.initState();
+    _startListening();
+  }
+
+  void _startListening() {
+    _scannerService.scanResults.listen((result) async {
+      final record = ScanRecord(
+        barcode: result.barcode,
+        codeType: result.codeType,
+        timestamp: DateTime.now(),
+      );
+
+      setState(() {
+        _records.insert(0, record);
+        _status = 'Sending...';
+      });
+
+      final prefs = await SharedPreferences.getInstance();
+      final url = prefs.getString('api_url') ?? '';
+
+      if (url.isEmpty) {
+        setState(() {
+          record.status = SendStatus.failed;
+          _status = 'No URL configured. Go to Settings.';
+        });
+        return;
+      }
+
+      final ok = await _apiService.sendScanData(
+        url,
+        barcode: record.barcode,
+        codeType: record.codeType,
+      );
+
+      if (mounted) {
+        setState(() {
+          record.status = ok ? SendStatus.success : SendStatus.failed;
+          _status = ok ? 'Sent successfully' : 'Send failed';
+        });
+      }
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('PAD Scanner'),
+        actions: [
+          IconButton(
+            icon: const Icon(Icons.settings),
+            onPressed: () => Navigator.push(
+              context,
+              MaterialPageRoute(builder: (_) => const SettingsPage()),
+            ),
+          ),
+        ],
+      ),
+      body: Column(
+        children: [
+          Container(
+            width: double.infinity,
+            padding: const EdgeInsets.all(16),
+            color: Theme.of(context).colorScheme.surfaceContainerHighest,
+            child: Text(
+              _status,
+              style: Theme.of(context).textTheme.titleMedium,
+              textAlign: TextAlign.center,
+            ),
+          ),
+          Expanded(
+            child: _records.isEmpty
+                ? const Center(
+                    child: Text(
+                        'No scans yet.\nPress the scan button on the device.',
+                        textAlign: TextAlign.center))
+                : ListView.builder(
+                    itemCount: _records.length,
+                    itemBuilder: (context, index) {
+                      final r = _records[index];
+                      return ListTile(
+                        title: Text(r.barcode),
+                        subtitle: Text(
+                            '${r.codeType}  ${r.timestamp.toLocal().toIso8601String().substring(0, 19)}'),
+                        trailing: Icon(
+                          r.status == SendStatus.success
+                              ? Icons.check_circle
+                              : r.status == SendStatus.failed
+                                  ? Icons.error
+                                  : Icons.hourglass_empty,
+                          color: r.status == SendStatus.success
+                              ? Colors.green
+                              : r.status == SendStatus.failed
+                                  ? Colors.red
+                                  : Colors.orange,
+                        ),
+                      );
+                    },
+                  ),
+          ),
+        ],
+      ),
+    );
+  }
+}