feat: inventory

lib/domain/analytic/analytic.dart

@@ -7,4 +7,5 @@ part 'analytic.freezed.dart';
 part 'entities/sales_analytic_entity.dart';
 part 'entities/profit_loss_analytic_entity.dart';
 part 'entities/category_analytic_entity.dart';
+part 'entities/inventory_analytic_entity.dart';
 part 'failures/analytic_failure.dart';

lib/domain/analytic/entities/inventory_analytic_entity.dart

@@ -0,0 +1,119 @@
+part of '../analytic.dart';
+
+@freezed
+class InventoryAnalytic with _$InventoryAnalytic {
+  const factory InventoryAnalytic({
+    required InventorySummary summary,
+    required List<InventoryProduct> products,
+    required List<InventoryIngredient> ingredients,
+  }) = _InventoryAnalytic;
+
+  factory InventoryAnalytic.empty() => InventoryAnalytic(
+    summary: InventorySummary.empty(),
+    products: [],
+    ingredients: [],
+  );
+}
+
+@freezed
+class InventorySummary with _$InventorySummary {
+  const factory InventorySummary({
+    required int totalProducts,
+    required int totalIngredients,
+    required int totalValue,
+    required int lowStockProducts,
+    required int lowStockIngredients,
+    required int zeroStockProducts,
+    required int zeroStockIngredients,
+    required int totalSoldProducts,
+    required int totalSoldIngredients,
+    required String outletId,
+    required String outletName,
+    required String generatedAt,
+  }) = _InventorySummary;
+
+  factory InventorySummary.empty() => const InventorySummary(
+    totalProducts: 0,
+    totalIngredients: 0,
+    totalValue: 0,
+    lowStockProducts: 0,
+    lowStockIngredients: 0,
+    zeroStockProducts: 0,
+    zeroStockIngredients: 0,
+    totalSoldProducts: 0,
+    totalSoldIngredients: 0,
+    outletId: "",
+    outletName: "",
+    generatedAt: "",
+  );
+}
+
+@freezed
+class InventoryProduct with _$InventoryProduct {
+  const factory InventoryProduct({
+    required String id,
+    required String productId,
+    required String productName,
+    required String categoryName,
+    required int quantity,
+    required int reorderLevel,
+    required int unitCost,
+    required int totalValue,
+    required int totalIn,
+    required int totalOut,
+    required bool isLowStock,
+    required bool isZeroStock,
+    required String updatedAt,
+  }) = _InventoryProduct;
+
+  factory InventoryProduct.empty() => const InventoryProduct(
+    id: "",
+    productId: "",
+    productName: "",
+    categoryName: "",
+    quantity: 0,
+    reorderLevel: 0,
+    unitCost: 0,
+    totalValue: 0,
+    totalIn: 0,
+    totalOut: 0,
+    isLowStock: false,
+    isZeroStock: false,
+    updatedAt: "",
+  );
+}
+
+@freezed
+class InventoryIngredient with _$InventoryIngredient {
+  const factory InventoryIngredient({
+    required String id,
+    required String ingredientId,
+    required String ingredientName,
+    required String unitName,
+    required int quantity,
+    required int reorderLevel,
+    required int unitCost,
+    required int totalValue,
+    required int totalIn,
+    required int totalOut,
+    required bool isLowStock,
+    required bool isZeroStock,
+    required String updatedAt,
+  }) = _InventoryIngredient;
+
+  factory InventoryIngredient.empty() => const InventoryIngredient(
+    id: "",
+    ingredientId: "",
+    ingredientName: "",
+    unitName: "",
+    quantity: 0,
+    reorderLevel: 0,
+    unitCost: 0,
+    totalValue: 0,
+    totalIn: 0,
+    totalOut: 0,
+    isLowStock: false,
+    isZeroStock: false,
+    updatedAt: "",
+  );
+}

lib/domain/analytic/repositories/i_analytic_repository.dart

@@ -17,4 +17,9 @@ abstract class IAnalyticRepository {
     required DateTime dateFrom,
     required DateTime dateTo,
   });
+
+  Future<Either<AnalyticFailure, InventoryAnalytic>> getInventory({
+    required DateTime dateFrom,
+    required DateTime dateTo,
+  });
 }