init

app/lib/services/api_service.dart

@@ -0,0 +1,64 @@
+import 'dart:convert';
+import 'package:http/http.dart' as http;
+import '../models/sms_message.dart';
+
+class ApiService {
+  String _baseUrl = '';
+  String? _token;
+
+  void configure(String baseUrl, String token) {
+    _baseUrl = baseUrl.endsWith('/') ? baseUrl.substring(0, baseUrl.length - 1) : baseUrl;
+    _token = token;
+  }
+
+  Map<String, String> get _headers => {
+        'Content-Type': 'application/json',
+        if (_token != null) 'Authorization': 'Bearer $_token',
+      };
+
+  Future<String> login(String username, String password) async {
+    final res = await http.post(
+      Uri.parse('$_baseUrl/api/auth/login'),
+      headers: {'Content-Type': 'application/json'},
+      body: jsonEncode({'username': username, 'password': password}),
+    );
+    if (res.statusCode != 200) throw Exception(_error(res));
+    return jsonDecode(res.body)['token'];
+  }
+
+  Future<String> register(String username, String password) async {
+    final res = await http.post(
+      Uri.parse('$_baseUrl/api/auth/register'),
+      headers: {'Content-Type': 'application/json'},
+      body: jsonEncode({'username': username, 'password': password}),
+    );
+    if (res.statusCode != 201) throw Exception(_error(res));
+    return jsonDecode(res.body)['token'];
+  }
+
+  Future<int> uploadSms(List<SmsMessage> messages) async {
+    final res = await http.post(
+      Uri.parse('$_baseUrl/api/sms/upload'),
+      headers: _headers,
+      body: jsonEncode(messages.map((m) => m.toJson()).toList()),
+    );
+    if (res.statusCode != 200) throw Exception(_error(res));
+    return jsonDecode(res.body)['uploaded'];
+  }
+
+  Future<void> registerDevice(String deviceName) async {
+    await http.post(
+      Uri.parse('$_baseUrl/api/devices/register'),
+      headers: _headers,
+      body: jsonEncode({'device_name': deviceName}),
+    );
+  }
+
+  String _error(http.Response res) {
+    try {
+      return jsonDecode(res.body)['error'] ?? 'Request failed';
+    } catch (_) {
+      return 'Request failed (${res.statusCode})';
+    }
+  }
+}