INFRA: Set Up Project.

lib/controllers/parcel_review_controller.dart

@@ -0,0 +1,135 @@
+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:customer/models/parcel_order_model.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import '../models/rating_model.dart';
+import '../models/user_model.dart';
+import '../service/fire_store_utils.dart';
+import '../constant/constant.dart';
+import '../themes/show_toast_dialog.dart';
+
+class ParcelReviewController extends GetxController {
+  RxBool isLoading = true.obs;
+
+  /// Order from arguments
+  final Rx<ParcelOrderModel?> order = Rx<ParcelOrderModel?>(null);
+
+  /// Rating data
+  final Rx<RatingModel?> ratingModel = Rx<RatingModel?>(null);
+  final RxDouble ratings = 0.0.obs;
+  final Rx<TextEditingController> comment = TextEditingController().obs;
+
+  /// Driver (to be reviewed)
+  final Rx<UserModel?> driverUser = Rx<UserModel?>(null);
+
+  /// Review stats
+  final RxInt futureCount = 0.obs;
+  final RxInt futureSum = 0.obs;
+
+  @override
+  void onInit() {
+    super.onInit();
+    final args = Get.arguments;
+    if (args != null && args['order'] != null) {
+      order.value = args['order'] as ParcelOrderModel;
+      getReview();
+    }
+  }
+
+  /// Fetch old review + driver stats
+  Future<void> getReview() async {
+    await FireStoreUtils.getReviewsbyID(order.value?.id ?? "").then((value) {
+      if (value != null) {
+        ratingModel.value = value;
+        ratings.value = value.rating ?? 0;
+        comment.value.text = value.comment ?? "";
+      }
+    });
+
+    await FireStoreUtils.getUserProfile(order.value?.driverId ?? '').then((value) {
+      if (value != null) {
+        driverUser.value = value;
+
+        final int userReviewsCount = int.tryParse(driverUser.value!.reviewsCount?.toString() ?? "0") ?? 0;
+        final int userReviewsSum = int.tryParse(driverUser.value!.reviewsSum?.toString() ?? "0") ?? 0;
+
+        if (ratingModel.value != null) {
+          final int oldRating = ratingModel.value?.rating?.toInt() ?? 0;
+          futureCount.value = userReviewsCount - 1;
+          futureSum.value = userReviewsSum - oldRating;
+        } else {
+          futureCount.value = userReviewsCount;
+          futureSum.value = userReviewsSum;
+        }
+      }
+    });
+
+    isLoading.value = false;
+  }
+
+  /// Save / update review
+  Future<void> submitReview() async {
+    if (comment.value.text.trim().isEmpty || ratings.value == 0) {
+      ShowToastDialog.showToast("Please provide rating and comment".tr);
+      return;
+    }
+
+    ShowToastDialog.showLoader("Submit in...".tr);
+
+    final user = await FireStoreUtils.getUserProfile(order.value?.driverId ?? '');
+
+    if (user != null) {
+      user.reviewsCount = (futureCount.value + 1).toString();
+      user.reviewsSum = (futureSum.value + ratings.value.toInt()).toString();
+    }
+    if (ratingModel.value != null && ratingModel.value!.id!.isNotEmpty) {
+      /// Update existing review
+      final updatedRating = RatingModel(
+        id: ratingModel.value!.id,
+        comment: comment.value.text,
+        photos: ratingModel.value?.photos ?? [],
+        rating: ratings.value,
+        orderId: ratingModel.value!.orderId,
+        driverId: ratingModel.value!.driverId,
+        customerId: ratingModel.value!.customerId,
+        vendorId: ratingModel.value?.vendorId,
+        uname: "${Constant.userModel?.firstName ?? ''} ${Constant.userModel?.lastName ?? ''}",
+        profile: Constant.userModel?.profilePictureURL,
+        createdAt: Timestamp.now(),
+      );
+
+      await FireStoreUtils.updateReviewById(updatedRating);
+      if (user != null) {
+        await FireStoreUtils.updateUser(user);
+      }
+    } else {
+      /// New review
+      final newRating = RatingModel(
+        id: Constant.getUuid(),
+        comment: comment.value.text,
+        photos: [],
+        rating: ratings.value,
+        orderId: order.value?.id,
+        driverId: order.value?.driverId.toString(),
+        customerId: Constant.userModel?.id,
+        uname: "${Constant.userModel?.firstName ?? ''} ${Constant.userModel?.lastName ?? ''}",
+        profile: Constant.userModel?.profilePictureURL,
+        createdAt: Timestamp.now(),
+      );
+
+      await FireStoreUtils.updateReviewById(newRating);
+      if (user != null) {
+        await FireStoreUtils.updateUser(user);
+      }
+    }
+
+    ShowToastDialog.closeLoader();
+    Get.back(result: true);
+  }
+
+  @override
+  void onClose() {
+    comment.value.dispose();
+    super.onClose();
+  }
+}