INFRA: Set Up Project.

2025-11-28 11:10:49 +05:00
commit c798279f7d
609 changed files with 77436 additions and 0 deletions
--- a/lib/service/cart_provider.dart
+++ b/lib/service/cart_provider.dart
@@ -0,0 +1,95 @@
+import 'dart:async';
+import 'dart:developer';
+import 'package:customer/constant/constant.dart';
+import 'package:customer/models/cart_product_model.dart';
+import 'package:customer/themes/custom_dialog_box.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+import 'database_helper.dart';
+
+class CartProvider with ChangeNotifier {
+  final _cartStreamController = StreamController<List<CartProductModel>>.broadcast();
+  List<CartProductModel> _cartItems = [];
+
+  Stream<List<CartProductModel>> get cartStream => _cartStreamController.stream;
+
+  CartProvider() {
+    _initCart();
+  }
+
+  Future<void> _initCart() async {
+    _cartItems = await DatabaseHelper.instance.fetchCartProducts();
+    _cartStreamController.sink.add(_cartItems);
+  }
+
+  Future<void> addToCart(BuildContext context, CartProductModel product, int quantity) async {
+    _cartItems = await DatabaseHelper.instance.fetchCartProducts();
+    if ((_cartItems.where((item) => item.id == product.id)).isNotEmpty) {
+      var index = _cartItems.indexWhere((item) => item.id == product.id);
+      _cartItems[index].quantity = quantity;
+      if (product.extras != null || product.extras!.isNotEmpty) {
+        _cartItems[index].extras = product.extras;
+        _cartItems[index].extrasPrice = product.extrasPrice;
+      } else {
+        _cartItems[index].extras = [];
+        _cartItems[index].extrasPrice = "0";
+      }
+      await DatabaseHelper.instance.updateCartProduct(_cartItems[index]);
+    } else {
+      if (_cartItems.isEmpty || _cartItems.where((item) => item.vendorID == product.vendorID).isNotEmpty) {
+        product.quantity = quantity;
+        _cartItems.add(product);
+        cartItem.add(product);
+        await DatabaseHelper.instance.insertCartProduct(product);
+        log("===> insert");
+      } else {
+        showDialog(
+          context: context,
+          builder: (BuildContext context) {
+            return CustomDialogBox(
+              title: "Alert".tr,
+              descriptions: "Your cart already contains items from another restaurant. Would you like to replace them with items from this restaurant instead?".tr,
+              positiveString: "Add".tr,
+              negativeString: "Cancel".tr,
+              positiveClick: () async {
+                cartItem.clear();
+                _cartItems.clear();
+                DatabaseHelper.instance.deleteAllCartProducts();
+                addToCart(context, product, quantity);
+                Get.back();
+              },
+              negativeClick: () {
+                Get.back();
+              },
+              img: null,
+            );
+          },
+        );
+      }
+    }
+    _initCart();
+  }
+
+  Future<void> removeFromCart(CartProductModel product, int quantity) async {
+    _cartItems = await DatabaseHelper.instance.fetchCartProducts();
+    var index = _cartItems.indexWhere((item) => item.id == product.id);
+    if (index >= 0) {
+      _cartItems[index].quantity = quantity;
+      if (_cartItems[index].quantity == 0) {
+        await DatabaseHelper.instance.deleteCartProduct(product.id!);
+        _cartItems.removeAt(index);
+        cartItem.removeAt(index);
+      } else {
+        await DatabaseHelper.instance.updateCartProduct(_cartItems[index]);
+      }
+    }
+    _initCart();
+  }
+
+  Future<void> clearDatabase() async {
+    _cartItems.clear();
+    cartItem.clear();
+    _cartStreamController.sink.add(_cartItems);
+  }
+}