INFRA: Set Up Project.

lib/controllers/on_demand_review_controller.dart

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+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import '../constant/collection_name.dart';
+import '../models/onprovider_order_model.dart';
+import '../models/provider_serivce_model.dart';
+import '../models/rating_model.dart';
+import '../models/worker_model.dart';
+import '../models/user_model.dart';
+import '../service/fire_store_utils.dart';
+import '../constant/constant.dart';
+import '../themes/show_toast_dialog.dart';
+
+class OnDemandReviewController extends GetxController {
+  final Rxn<OnProviderOrderModel> order = Rxn<OnProviderOrderModel>();
+  final RxString reviewFor = "".obs;
+  final Rxn<RatingModel> ratingModel = Rxn<RatingModel>();
+  final RxDouble ratings = 0.0.obs;
+  final TextEditingController comment = TextEditingController();
+
+  final Rxn<UserModel> provider = Rxn<UserModel>();
+  final Rxn<ProviderServiceModel> providerServiceModel = Rxn<ProviderServiceModel>();
+  final Rxn<WorkerModel> workerModel = Rxn<WorkerModel>();
+
+  final RxInt providerReviewCount = 0.obs;
+  final RxDouble providerReviewSum = 0.0.obs;
+  final RxInt serviceReviewCount = 0.obs;
+  final RxDouble serviceReviewSum = 0.0.obs;
+  final RxInt workerReviewCount = 0.obs;
+  final RxDouble workerReviewSum = 0.0.obs;
+
+  final FirebaseFirestore firestore = FirebaseFirestore.instance;
+
+  @override
+  void onInit() {
+    super.onInit();
+    final args = Get.arguments;
+    if (args != null) {
+      order.value = args['order'];
+      reviewFor.value = args['reviewFor'];
+      getReview();
+    }
+  }
+
+  void getReview() async {
+    // Get existing rating
+    if (reviewFor.value == "Provider") {
+      RatingModel? value = await FireStoreUtils.getReviewsByProviderID(order.value!.id, order.value!.provider.author.toString());
+      if (value != null) {
+        ratingModel.value = value;
+        ratings.value = value.rating ?? 0.0;
+        comment.text = value.comment ?? '';
+      }
+    } else {
+      RatingModel? value = await FireStoreUtils.getReviewsByWorkerID(order.value!.id, order.value!.workerId.toString());
+      if (value != null) {
+        ratingModel.value = value;
+        ratings.value = value.rating ?? 0.0;
+        comment.text = value.comment ?? '';
+      }
+    }
+
+    // Worker review logic
+    if (reviewFor.value == "Worker") {
+      WorkerModel? value = await FireStoreUtils.getWorker(order.value!.workerId.toString());
+      if (value != null) {
+        workerModel.value = value;
+
+        final int existingCount = (value.reviewsCount ?? 0).toInt();
+        final double existingSum = (value.reviewsSum ?? 0.0).toDouble();
+        final double oldRating = ratingModel.value?.rating ?? 0.0;
+
+        workerReviewCount.value = ratingModel.value != null ? (existingCount - 1) : existingCount;
+        workerReviewSum.value = ratingModel.value != null ? (existingSum - oldRating) : existingSum;
+      }
+    }
+    // Provider & service review logic
+    else {
+      UserModel? user = await FireStoreUtils.getUserProfile(order.value!.provider.author.toString());
+      if (user != null) {
+        provider.value = user;
+
+        final int existingCount = int.tryParse(user.reviewsCount?.toString() ?? '0') ?? 0;
+        final double existingSum = double.tryParse(user.reviewsSum?.toString() ?? '0.0') ?? 0.0;
+        final double oldRating = ratingModel.value?.rating ?? 0.0;
+
+        providerReviewCount.value = ratingModel.value != null ? (existingCount - 1) : existingCount;
+        providerReviewSum.value = ratingModel.value != null ? (existingSum - oldRating) : existingSum;
+      }
+
+      ProviderServiceModel? service = await FireStoreUtils.getCurrentProvider(order.value!.provider.id.toString());
+      if (service != null) {
+        providerServiceModel.value = service;
+
+        final int existingCount = (service.reviewsCount ?? 0).toInt();
+        final double existingSum = (service.reviewsSum ?? 0.0).toDouble();
+        final double oldRating = ratingModel.value?.rating ?? 0.0;
+
+        serviceReviewCount.value = ratingModel.value != null ? (existingCount - 1) : existingCount;
+        serviceReviewSum.value = ratingModel.value != null ? (existingSum - oldRating) : existingSum;
+      }
+    }
+  }
+
+  void submitReview() async {
+    if (reviewFor.value == "Provider") {
+      await _providerReviewSubmit();
+    } else {
+      await _workerReviewSubmit();
+    }
+  }
+
+  Future<void> _providerReviewSubmit() async {
+    ShowToastDialog.showLoader("Submit in...".tr);
+    providerServiceModel.value!.reviewsCount = serviceReviewCount.value + 1;
+    providerServiceModel.value!.reviewsSum = serviceReviewSum.value + ratings.value;
+
+    // Convert to string only if your model field is String
+    provider.value!.reviewsCount = (providerReviewCount.value + 1).toString();
+    provider.value!.reviewsSum = (providerReviewSum.value + ratings.value).toString();
+
+    RatingModel rate = RatingModel(
+      id: ratingModel.value?.id ?? firestore.collection(CollectionName.itemsReview).doc().id,
+      productId: ratingModel.value?.productId ?? order.value!.provider.id,
+      comment: comment.text,
+      photos: ratingModel.value?.photos ?? [],
+      rating: ratings.value,
+      orderId: ratingModel.value?.orderId ?? order.value!.id,
+      vendorId: ratingModel.value?.vendorId ?? order.value!.provider.author.toString(),
+      customerId: Constant.userModel?.id,
+      uname: '${Constant.userModel?.firstName ?? ''} ${Constant.userModel?.lastName ?? ''}',
+      profile: Constant.userModel?.profilePictureURL,
+      createdAt: Timestamp.now(),
+    );
+
+    await FireStoreUtils.updateReviewById(rate);
+    await FireStoreUtils.updateUser(provider.value!);
+    await FireStoreUtils.updateProvider(providerServiceModel.value!);
+
+    ShowToastDialog.closeLoader();
+    Get.back(result: true);
+  }
+
+  Future<void> _workerReviewSubmit() async {
+    ShowToastDialog.showLoader("Submit in...".tr);
+    workerModel.value!.reviewsCount = workerReviewCount.value + 1;
+    workerModel.value!.reviewsSum = workerReviewSum.value + ratings.value;
+
+    RatingModel rate = RatingModel(
+      id: ratingModel.value?.id ?? firestore.collection(CollectionName.itemsReview).doc().id,
+      productId: ratingModel.value?.productId ?? order.value!.provider.id,
+      comment: comment.text,
+      photos: ratingModel.value?.photos ?? [],
+      rating: ratings.value,
+      orderId: ratingModel.value?.orderId ?? order.value!.id,
+      driverId: ratingModel.value?.driverId ?? order.value!.workerId.toString(),
+      customerId: Constant.userModel?.id,
+      uname: '${Constant.userModel?.firstName ?? ''} ${Constant.userModel?.lastName ?? ''}',
+      profile: Constant.userModel?.profilePictureURL,
+      createdAt: Timestamp.now(),
+    );
+
+    await FireStoreUtils.updateReviewById(rate);
+    await FireStoreUtils.updateWorker(workerModel.value!);
+
+    ShowToastDialog.closeLoader();
+    Get.back(result: true);
+  }
+}