import 'package:cheminova/constants/constant.dart';
import 'package:cheminova/models/product_model.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';

class ProductProvider extends ChangeNotifier {
  ProductProvider() {
    getProducts(1);
  }

  final _apiClient = ApiClient();
  ProductResponse? productResponse;
  List<Product> productList = [];
  final List<Product> _selectedProducts = [];

  bool _isLoading = false;

  bool get isLoading => _isLoading;

  List<Product> get selectedProducts => _selectedProducts;

  void setLoading(bool loading) {
    _isLoading = loading;
    notifyListeners();
  }

  // Future<List<Product>?> getProducts(int page) async {
  //   setLoading(true);
  //   try {
  //     Response response = await _apiClient.get("${ApiUrls.getProducts}?page=$page");
  //     setLoading(false);
  //     if (response.statusCode == 200) {
  //       productResponse = ProductResponse.fromJson(response.data);
  //       productList = productResponse!.products;
  //       //notifyListeners();
  //     }
  //   } catch (e) {
  //     setLoading(false);
  //     String error = "Something went wrong";
  //     if (e is DioException) {
  //       error = e.response!.data['message'] ?? "Something went wrong";
  //     }
  //     ScaffoldMessenger.of(
  //       navigatorKey.currentContext!,
  //     ).showSnackBar(
  //       SnackBar(
  //         content: Text(
  //           error,
  //         ),
  //       ),
  //     );
  //   }
  // }


  Future<void> getProducts(int page) async {
    // if (_isLoading) return; // Prevent duplicate requests
    // setLoading(true);
    try {
      Response response = await _apiClient.get("${ApiUrls.getProducts}?page=$page");
      if (response.statusCode == 200) {
        final newProductResponse = ProductResponse.fromJson(response.data);
        if (newProductResponse.products.isNotEmpty) {
          // if (page == 6) {
          //   // Clear the list if it's the first page
          //   productList = newProductResponse.products;
          // } else {
            // Append new products for subsequent pages
            productList.addAll(newProductResponse.products);
          }
       // _isLoading = false;
       // notifyListeners();
       // }
      }
    } catch (e) {
      String error = "Something went wrong";
      if (e is DioException) {
        error = e.response?.data['message'] ?? "Something went wrong";
      }
      ScaffoldMessenger.of(navigatorKey.currentContext!).showSnackBar(
        SnackBar(
          content: Text(error),
        ),
      );
    } finally {
      setLoading(false);
    }
  }



  Future<bool> submitSelectedProducts(
      String addedFor, String addedForId) async {
    setLoading(true);
    try {
      final data = {
        "products": selectedProducts.map((product) {
          return {
            "SKU": product.SKU,
            "ProductName": product.name,
            "Sale": product.sale,
            "Inventory": product.inventory,
            "productid": product.id,
          };
        }).toList(),
        "addedFor": addedFor,
        "addedForId": addedForId,
      };

      Response response =
          await _apiClient.post(ApiUrls.submitProducts, data: data);
      setLoading(false);
      if (response.statusCode == 201) {
        return true;
      } else {
        return false;
      }
    } catch (e) {
      setLoading(false);
      String error = "Something went wrong";
      if (e is DioException) {
        error = e.response!.data['message'] ?? "Something went wrong";
      }
      ScaffoldMessenger.of(
        navigatorKey.currentContext!,
      ).showSnackBar(
        SnackBar(
          content: Text(
            error,
          ),
        ),
      );
      return false;
    }
  }
}



// import 'package:cheminova/constants/constant.dart';
// import 'package:cheminova/models/product_model.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';
//
// class ProductProvider extends ChangeNotifier {
//   ProductProvider() {
//     // Initialize with the first page of products
//     getProducts(1);
//   }
//
//   final _apiClient = ApiClient();
//   ProductResponse? productResponse; // To parse and store API response
//   List<Product> productList = []; // Main list of products
//   final List<Product> _selectedProducts = []; // For user-selected products
//
//   bool _isLoading = false;
//   bool _hasMoreData = true; // Track if more data is available
//
//   bool get isLoading => _isLoading;
//   bool get hasMoreData => _hasMoreData;
//
//   List<Product> get selectedProducts => _selectedProducts;
//
//   void setLoading(bool loading) {
//     _isLoading = loading;
//     notifyListeners();
//   }
//
//   Future<void> getProducts(int page) async {
//     if (_isLoading || !_hasMoreData) return; // Prevent duplicate requests
//     setLoading(true);
//
//     try {
//       final String url = "${ApiUrls.getProducts}?page=$page";
//       Response response = await _apiClient.get(url);
//
//       if (response.statusCode == 200) {
//         productResponse = ProductResponse.fromJson(response.data);
//
//         if (productResponse!.products.isNotEmpty) {
//
//           selectedProducts.addAll(productResponse!.products);
//           // if (page <= productResponse!.totalPages) {
//           //   // Replace the list if fetching the first page
//           //   productList = productResponse!.products;
//           // } else {
//           //   // Append new products for subsequent pages
//           //   productList.addAll(productResponse!.products);
//           // }
//           notifyListeners();
//         } else {
//           // No more products to load
//           _hasMoreData = false;
//         }
//       }
//     } catch (e) {
//       String error = "Something went wrong";
//       if (e is DioException) {
//         error = e.response?.data['message'] ?? "Something went wrong";
//       }
//       ScaffoldMessenger.of(
//         navigatorKey.currentContext!,
//       ).showSnackBar(
//         SnackBar(
//           content: Text(error),
//         ),
//       );
//     } finally {
//       setLoading(false);
//     }
//   }
//
//   Future<bool> submitSelectedProducts(String addedFor, String addedForId) async {
//     setLoading(true);
//
//     try {
//       final data = {
//         "products": selectedProducts.map((product) {
//           return {
//             "SKU": product.SKU,
//             "ProductName": product.name,
//             "Sale": product.sale,
//             "Inventory": product.inventory,
//             "productid": product.id,
//           };
//         }).toList(),
//         "addedFor": addedFor,
//         "addedForId": addedForId,
//       };
//
//       Response response =
//       await _apiClient.post(ApiUrls.submitProducts, data: data);
//
//       if (response.statusCode == 201) {
//         return true;
//       } else {
//         return false;
//       }
//     } catch (e) {
//       String error = "Something went wrong";
//       if (e is DioException) {
//         error = e.response?.data['message'] ?? "Something went wrong";
//       }
//       ScaffoldMessenger.of(
//         navigatorKey.currentContext!,
//       ).showSnackBar(
//         SnackBar(
//           content: Text(error),
//         ),
//       );
//       return false;
//     } finally {
//       setLoading(false);
//     }
//   }
// }