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lib/Provider/transactions_provider.dart

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+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:mobile_pos/Screens/Purchase/Model/purchase_transaction_model.dart';
+import 'package:mobile_pos/Screens/Purchase/Repo/purchase_repo.dart';
+import 'package:mobile_pos/Screens/Sales/Repo/sales_repo.dart';
+import 'package:mobile_pos/model/sale_transaction_model.dart';
+
+import '../model/balance_sheet_model.dart' as bs;
+import '../model/bill_wise_loss_profit_report_model.dart' as bwlprm;
+import '../model/cashflow_model.dart' as cf;
+import '../model/loss_profit_model.dart' as lpmodel;
+import '../model/product_history_model.dart' as phlm;
+import '../model/subscription_report_model.dart' as srm;
+import '../model/tax_report_model.dart' as trm;
+
+//------------sales-------------------------------------
+final saleRepo = Provider<SaleRepo>((ref) => SaleRepo());
+
+final salesTransactionProvider = FutureProvider.autoDispose<List<SalesTransactionModel>>((ref) {
+  final repo = ref.read(saleRepo);
+  return repo.fetchSalesList();
+});
+
+final filteredSaleProvider = FutureProvider.family.autoDispose<List<SalesTransactionModel>, FilterModel>(
+  (ref, filter) {
+    final repo = ref.read(saleRepo);
+    return repo.fetchSalesList(
+      type: filter.duration,
+      fromDate: filter.fromDate,
+      toDate: filter.toDate,
+    );
+  },
+);
+
+final filteredSaleReturnedProvider = FutureProvider.family.autoDispose<List<SalesTransactionModel>, FilterModel>(
+  (ref, filter) {
+    final repo = ref.read(saleRepo);
+    return repo.fetchSalesList(
+      type: filter.duration,
+      fromDate: filter.fromDate,
+      toDate: filter.toDate,
+      salesReturn: true,
+    );
+  },
+);
+
+//------------------purchase----------------------------------------
+final purchaseRepo = Provider<PurchaseRepo>((ref) => PurchaseRepo());
+
+final purchaseTransactionProvider = FutureProvider.autoDispose<List<PurchaseTransaction>>((ref) {
+  final repo = ref.read(purchaseRepo);
+  return repo.fetchPurchaseList();
+});
+
+final filterPurchaseProvider = FutureProvider.family.autoDispose<List<PurchaseTransaction>, FilterModel>(
+  (ref, filter) {
+    final repo = ref.read(purchaseRepo);
+    return repo.fetchPurchaseList(
+      type: filter.duration,
+      fromDate: filter.fromDate,
+      toDate: filter.toDate,
+    );
+  },
+);
+
+final filterPurchaseReturnProvider = FutureProvider.family.autoDispose<List<PurchaseTransaction>, FilterModel>(
+  (ref, filter) {
+    final repo = ref.read(purchaseRepo);
+    return repo.fetchPurchaseList(
+      type: filter.duration,
+      fromDate: filter.fromDate,
+      toDate: filter.toDate,
+      salesReturn: true,
+    );
+  },
+);
+
+final filteredLossProfitProvider = FutureProvider.family.autoDispose<lpmodel.LossProfitModel, FilterModel>(
+  (ref, filter) {
+    final repo = ref.read(saleRepo);
+    return repo.getLossProfit(
+      type: filter.duration,
+      fromDate: filter.fromDate,
+      toDate: filter.toDate,
+    );
+  },
+);
+
+final filteredCashflowProvider = FutureProvider.family.autoDispose<cf.CashflowModel, FilterModel>(
+  (ref, filter) {
+    final repo = ref.read(saleRepo);
+    return repo.getCashflow(
+      type: filter.duration,
+      fromDate: filter.fromDate,
+      toDate: filter.toDate,
+    );
+  },
+);
+
+final filteredBalanceSheetProvider = FutureProvider.family.autoDispose<bs.BalanceSheetModel, FilterModel>(
+  (ref, filter) {
+    final repo = ref.read(saleRepo);
+    return repo.getBalanceSheet(
+      type: filter.duration,
+      fromDate: filter.fromDate,
+      toDate: filter.toDate,
+    );
+  },
+);
+
+final filteredSubscriptionReportProvider =
+    FutureProvider.family.autoDispose<List<srm.SubscriptionReportModel>, FilterModel>(
+  (ref, filter) {
+    final repo = ref.read(saleRepo);
+    return repo.getSubscriptionReport(
+      type: filter.duration,
+      fromDate: filter.fromDate,
+      toDate: filter.toDate,
+    );
+  },
+);
+
+final filteredTaxReportReportProvider = FutureProvider.family.autoDispose<trm.TaxReportModel, FilterModel>(
+  (ref, filter) {
+    final repo = ref.read(saleRepo);
+    return repo.getTaxReport(
+      type: filter.duration,
+      fromDate: filter.fromDate,
+      toDate: filter.toDate,
+    );
+  },
+);
+
+final filteredBillWiseLossProfitReportProvider =
+    FutureProvider.family.autoDispose<bwlprm.BillWiseLossProfitReportModel, FilterModel>(
+  (ref, filter) {
+    final repo = ref.read(saleRepo);
+    return repo.getBillWiseLossProfitReport(
+      type: filter.duration,
+      fromDate: filter.fromDate,
+      toDate: filter.toDate,
+    );
+  },
+);
+
+final filteredProductSaleHistoryReportProvider =
+    FutureProvider.family.autoDispose<phlm.ProductHistoryListModel, FilterModel>(
+  (ref, filter) {
+    final repo = ref.read(saleRepo);
+    return repo.getProductSaleHistoryReport(
+      type: filter.duration,
+      fromDate: filter.fromDate,
+      toDate: filter.toDate,
+    );
+  },
+);
+
+final filteredProductSaleHistoryReportDetailsProvider =
+    FutureProvider.family.autoDispose<phlm.ProductHistoryDetailsModel, ({int productId, FilterModel filter})>(
+  (ref, arg) {
+    final repo = ref.read(saleRepo);
+    return repo.getProductSaleHistoryReportDetails(
+      productId: arg.productId,
+      type: arg.filter.duration,
+      fromDate: arg.filter.fromDate,
+      toDate: arg.filter.toDate,
+    );
+  },
+);
+
+final filteredProductPurchaseHistoryReportDetailsProvider =
+    FutureProvider.family.autoDispose<phlm.ProductHistoryDetailsModel, ({int productId, FilterModel filter})>(
+  (ref, arg) {
+    final repo = ref.read(saleRepo);
+    return repo.getProductPurchaseHistoryReportDetails(
+      productId: arg.productId,
+      type: arg.filter.duration,
+      fromDate: arg.filter.fromDate,
+      toDate: arg.filter.toDate,
+    );
+  },
+);
+
+class FilterModel {
+  final String? duration;
+  final String? fromDate;
+  final String? toDate;
+
+  FilterModel({
+    this.duration,
+    this.fromDate,
+    this.toDate,
+  });
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) return true;
+
+    return other is FilterModel && other.duration == duration && other.fromDate == fromDate && other.toDate == toDate;
+  }
+
+  @override
+  int get hashCode => duration.hashCode ^ fromDate.hashCode ^ toDate.hashCode;
+}