update invoice

lib/features/invoices/data/datasources/invoice_remote_datasource.dart

@@ -0,0 +1,80 @@
+/// Invoice Remote Data Source
+///
+/// Handles API calls for invoice-related data.
+library;
+
+import 'package:worker/core/constants/api_constants.dart';
+import 'package:worker/core/network/dio_client.dart';
+import 'package:worker/features/invoices/data/models/invoice_model.dart';
+
+/// Invoice Remote Data Source
+class InvoiceRemoteDataSource {
+  const InvoiceRemoteDataSource(this._dioClient);
+
+  final DioClient _dioClient;
+
+  /// Get invoices list
+  ///
+  /// Calls: POST /api/method/building_material.building_material.api.invoice.get_list
+  /// Returns: List of invoices
+  Future<List<InvoiceModel>> getInvoicesList({
+    int limitStart = 0,
+    int limitPageLength = 0,
+  }) async {
+    try {
+      final response = await _dioClient.post<Map<String, dynamic>>(
+        '${ApiConstants.frappeApiMethod}${ApiConstants.getInvoiceList}',
+        data: {
+          'limit_start': limitStart,
+          'limit_page_length': limitPageLength,
+        },
+      );
+
+      final data = response.data;
+      if (data == null) {
+        throw Exception('No data received from getInvoicesList API');
+      }
+
+      // API returns: { "message": [...] }
+      final message = data['message'];
+      if (message == null) {
+        throw Exception('No message field in getInvoicesList response');
+      }
+
+      final List<dynamic> invoicesList = message as List<dynamic>;
+      return invoicesList
+          .map((json) => InvoiceModel.fromJson(json as Map<String, dynamic>))
+          .toList();
+    } catch (e) {
+      throw Exception('Failed to get invoices list: $e');
+    }
+  }
+
+  /// Get invoice detail
+  ///
+  /// Calls: POST /api/method/building_material.building_material.api.invoice.get_detail
+  /// Returns: Invoice detail
+  Future<InvoiceModel> getInvoiceDetail(String name) async {
+    try {
+      final response = await _dioClient.post<Map<String, dynamic>>(
+        '${ApiConstants.frappeApiMethod}${ApiConstants.getInvoiceDetail}',
+        data: {'name': name},
+      );
+
+      final data = response.data;
+      if (data == null) {
+        throw Exception('No data received from getInvoiceDetail API');
+      }
+
+      // API returns: { "message": {...} }
+      final message = data['message'];
+      if (message == null) {
+        throw Exception('No message field in getInvoiceDetail response');
+      }
+
+      return InvoiceModel.fromJson(message as Map<String, dynamic>);
+    } catch (e) {
+      throw Exception('Failed to get invoice detail: $e');
+    }
+  }
+}