92 lines
3.7 KiB
Dart
92 lines
3.7 KiB
Dart
import 'package:cheminova/constants/constant.dart';
|
|
import 'package:cheminova/models/get_pd_rd_response.dart';
|
|
import 'package:cheminova/screens/Add_products_screen.dart';
|
|
import 'package:cheminova/services/api_client.dart';
|
|
import 'package:cheminova/services/api_urls.dart';
|
|
import 'package:dio/dio.dart';
|
|
import 'package:flutter/material.dart';
|
|
|
|
// Provider class to manage the Principal Distributor (PD) and Retailer Distributor (RD) data
|
|
class PdRdProvider extends ChangeNotifier {
|
|
String?
|
|
selectedDistributorType; // Holds the selected distributor type (PD or RD)
|
|
|
|
bool _isLoading =
|
|
false; // Flag to indicate whether data is currently being loaded
|
|
|
|
bool get isLoading => _isLoading; // Getter for loading state
|
|
|
|
List<GetPdRdResponse> _pdRdList = []; // List to store fetched PD/RD data
|
|
|
|
List<GetPdRdResponse> get pdRdList =>
|
|
_pdRdList; // Getter to access the PD/RD list
|
|
|
|
GetPdRdResponse? selectedPdRd; // Holds the currently selected PD/RD
|
|
|
|
final _apiClient =
|
|
ApiClient(); // Instance of the API client to make network requests
|
|
|
|
// Method to update the loading state and notify listeners
|
|
void setLoading(bool loading) {
|
|
_isLoading = loading;
|
|
notifyListeners(); // Notify listeners to update the UI
|
|
}
|
|
|
|
// Method to fetch PD/RD data from the API based on the selected distributor type
|
|
Future<void> getPdRd() async {
|
|
setLoading(true); // Show loading indicator while data is being fetched
|
|
try {
|
|
// Make GET request to fetch PD/RD data, replacing spaces in the selected distributor type
|
|
Response response = await _apiClient.get(
|
|
ApiUrls.getPdRdUrl + selectedDistributorType!.replaceAll(' ', ''));
|
|
|
|
setLoading(false); // Hide loading indicator after response
|
|
|
|
if (response.statusCode == 200) {
|
|
// If response is successful, parse the data into a list of GetPdRdResponse objects
|
|
_pdRdList = (response.data as List)
|
|
.map((json) => GetPdRdResponse.fromJson(json))
|
|
.toList();
|
|
notifyListeners(); // Notify listeners to refresh the UI with new data
|
|
} else {
|
|
// Log an error message if the response is not successful
|
|
debugPrint("Failed to load data: ${response.statusCode}");
|
|
}
|
|
} catch (e) {
|
|
// Log any exceptions that occur during the API call
|
|
debugPrint("Error occurred: $e");
|
|
} finally {
|
|
// Always hide the loading indicator once the operation completes
|
|
setLoading(false);
|
|
}
|
|
}
|
|
|
|
// Method to update the selected distributor type and fetch corresponding PD/RD data
|
|
void updateDistributorType(String? val) {
|
|
selectedDistributorType = val; // Update selected distributor type
|
|
selectedPdRd = null; // Reset the selected PD/RD
|
|
notifyListeners(); // Notify listeners to update the UI
|
|
getPdRd(); // Fetch the PD/RD data for the selected distributor type
|
|
}
|
|
|
|
// Method to update the selected PD/RD and navigate to the Add Products screen
|
|
updatePdRdValue(GetPdRdResponse? val) {
|
|
selectedPdRd = val; // Update selected PD/RD
|
|
notifyListeners(); // Notify listeners to update the UI
|
|
|
|
// Delay navigation slightly to ensure smooth transition
|
|
Future.delayed(const Duration(milliseconds: 500), () {
|
|
if (selectedPdRd != null && selectedDistributorType != null) {
|
|
// Navigate to the AddProductsScreen, passing selected distributor type and PD/RD details
|
|
Navigator.push(
|
|
navigatorKey.currentContext!,
|
|
MaterialPageRoute(
|
|
builder: (context) => AddProductsScreen(
|
|
distributorType: selectedDistributorType!,
|
|
tradeName: selectedPdRd!.name ?? '',
|
|
pdRdId: selectedPdRd!.sId!)));
|
|
}
|
|
});
|
|
}
|
|
}
|