INFRA: Set Up Project.

lib/controllers/parcel_order_details_controller.dart

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+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:customer/models/rating_model.dart';
+import 'package:customer/models/wallet_transaction_model.dart';
+import 'package:customer/screen_ui/multi_vendor_service/wallet_screen/wallet_screen.dart';
+import 'package:customer/themes/show_toast_dialog.dart';
+import 'package:get/get.dart';
+import 'package:intl/intl.dart';
+import '../constant/constant.dart';
+import '../models/parcel_category.dart';
+import '../models/parcel_order_model.dart';
+import '../models/user_model.dart';
+import '../service/fire_store_utils.dart';
+
+class ParcelOrderDetailsController extends GetxController {
+  Rx<ParcelOrderModel> parcelOrder = ParcelOrderModel().obs;
+  RxList<ParcelCategory> parcelCategory = <ParcelCategory>[].obs;
+  RxBool isLoading = false.obs;
+
+  Rx<UserModel?> driverUser = Rx<UserModel?>(null);
+  Rx<RatingModel> ratingModel = RatingModel().obs;
+
+  @override
+  void onInit() {
+    super.onInit();
+    final args = Get.arguments;
+    if (args != null && args is ParcelOrderModel) {
+      parcelOrder.value = args;
+      setStatusHistoryFromString(parcelOrder.value);
+    }
+    loadParcelCategories();
+    calculateTotalAmount();
+    fetchDriverDetails();
+  }
+
+  RxDouble subTotal = 0.0.obs;
+  RxDouble discount = 0.0.obs;
+  RxDouble taxAmount = 0.0.obs;
+  RxDouble totalAmount = 0.0.obs;
+
+  void calculateTotalAmount() {
+    taxAmount = 0.0.obs;
+    discount = 0.0.obs;
+    subTotal.value = double.parse(parcelOrder.value.subTotal.toString());
+    discount.value = double.parse(parcelOrder.value.discount ?? '0.0');
+
+    for (var element in parcelOrder.value.taxSetting!) {
+      taxAmount.value = (taxAmount.value + Constant.calculateTax(amount: (subTotal.value - discount.value).toString(), taxModel: element));
+    }
+
+    totalAmount.value = (subTotal.value - discount.value) + taxAmount.value;
+    update();
+  }
+
+  Future<void> fetchDriverDetails() async {
+    if (parcelOrder.value.driverId != null) {
+      await FireStoreUtils.getUserProfile(parcelOrder.value.driverId ?? '').then((value) {
+        if (value != null) {
+          driverUser.value = value;
+        }
+      });
+
+      await FireStoreUtils.getReviewsbyID(parcelOrder.value.id.toString()).then((value) {
+        if (value != null) {
+          ratingModel.value = value;
+        }
+      });
+    }
+  }
+
+  void setStatusHistoryFromString(ParcelOrderModel order) {
+    final steps = ["Order Placed", "Driver Accepted", "Pickup Done", "In Transit", "Delivered"];
+
+    final history = <ParcelStatus>[];
+
+    DateTime baseTime = order.createdAt?.toDate() ?? DateTime.now();
+    int minutesGap = 30;
+
+    for (int i = 0; i < steps.length; i++) {
+      final step = steps[i];
+
+      history.add(ParcelStatus(status: step, time: baseTime.add(Duration(minutes: i * minutesGap))));
+
+      if (step == order.status) break;
+    }
+
+    order.statusHistory = history;
+  }
+
+  Future<void> cancelParcelOrder() async {
+    ShowToastDialog.showLoader("Cancelling order...".tr);
+    parcelOrder.value.status = Constant.orderCancelled;
+    if (parcelOrder.value.paymentMethod?.toLowerCase() != "cod") {
+      WalletTransactionModel walletTransaction = WalletTransactionModel(
+        id: Constant.getUuid(),
+        amount: totalAmount.value,
+        date: Timestamp.now(),
+        paymentMethod: PaymentGateway.wallet.name,
+        transactionUser: "customer",
+        userId: FireStoreUtils.getCurrentUid(),
+        isTopup: true,
+        orderId: parcelOrder.value.id,
+        note: "Refund for cancelled parcel order",
+        paymentStatus: "success",
+        serviceType: Constant.parcelServiceType,
+      );
+
+      // Save wallet transaction
+      await FireStoreUtils.setWalletTransaction(walletTransaction);
+
+      // Update wallet balance
+      await FireStoreUtils.updateUserWallet(amount: totalAmount.value.toString(), userId: FireStoreUtils.getCurrentUid());
+    }
+
+    await FireStoreUtils.parcelOrderPlace(parcelOrder.value);
+    ShowToastDialog.closeLoader();
+    ShowToastDialog.showToast("Order cancelled successfully".tr);
+    Get.back(result: true);
+  }
+
+  void loadParcelCategories() async {
+    isLoading.value = true;
+    final categories = await FireStoreUtils.getParcelServiceCategory();
+    parcelCategory.value = categories;
+    isLoading.value = false;
+  }
+
+  String formatDate(Timestamp timestamp) {
+    final dateTime = timestamp.toDate();
+    return DateFormat("dd MMM yyyy, hh:mm a").format(dateTime);
+  }
+
+  ParcelCategory? getSelectedCategory() {
+    try {
+      return parcelCategory.firstWhere((cat) => cat.title?.toLowerCase().trim() == parcelOrder.value.parcelType?.toLowerCase().trim(), orElse: () => ParcelCategory());
+    } catch (e) {
+      return null;
+    }
+  }
+}