import 'dart:convert';
import 'dart:developer';

import 'package:get/get.dart';
import 'package:onufitness/constants/api_endpoints.dart';
import 'package:onufitness/screens/echoboard/models/coach_reviews_response_model.dart';
import 'package:onufitness/services/api_services/base_api_services.dart';
import 'package:onufitness/utils/custom_sneakbar.dart';

class ReviewsController extends GetxController {
  // Observable variables
  RxBool isLoading = false.obs;
  RxBool isLoadingMore = false.obs;
  RxBool reachedEnd = false.obs;
  RxString revieweeId = "".obs;
  RxDouble averageRating = 0.0.obs;
  RxInt totalReviews = 0.obs;
  RxList<UserReviewRating> reviews = <UserReviewRating>[].obs;

  // Pagination variables
  RxInt currentPage = 1.obs;
  final int pageSize = 5;

  // Reset pagination when refreshing the screen
  void resetPagination() {
    currentPage.value = 1;
    reachedEnd.value = false;
    reviews.clear();
  }

  // Get user reviews with pagination
  Future<void> getUserReviews() async {
    if (revieweeId.value.isEmpty) {
      log("Reviewee ID is empty, skipping API call");
      return;
    }

    if (currentPage.value == 1) {
      isLoading(true);
    } else {
      isLoadingMore(true);
    }

    try {
      final url =
          "${ApiUrl.fetchUserReviews}/${revieweeId.value}?PageNumber=${currentPage.value}&PageSize=$pageSize";
      final response = await ApiBase.getRequest(extendedURL: url);

      log("Get Reviews API Response Code: ${response.statusCode}");

      if (response.statusCode == 200) {
        final responseData = CoachReviewsResponseModel.fromJson(
          jsonDecode(response.body),
        );

        if (responseData.isSuccess == true) {
          log("Reviews fetched successfully");

          // Update total reviews and average rating
          if (responseData.data != null) {
            averageRating.value = responseData.data!.userAvgReviewRating ?? 0.0;
            totalReviews.value = responseData.data!.totalReviews ?? 0;

            final newReviews = responseData.data!.userReviewRatings ?? [];

            // If it's the first page, replace the list, otherwise append
            if (currentPage.value == 1) {
              reviews.value = newReviews;
            } else {
              reviews.addAll(newReviews);
            }

            // Check if we've reached the end
            if (newReviews.length < pageSize) {
              reachedEnd.value = true;
            }

            // Increment page number for next fetch
            currentPage.value++;
          }
        } else {
          log("Reviews API returned error: ${responseData.message}");
          customSnackbar(
            title: "Error",
            message: responseData.message ?? "Failed to load reviews",
          );
        }
      } else {
        log("Reviews API failed with status: ${response.statusCode}");
        customSnackbar(title: "Error", message: "Failed to load reviews");
      }
    } catch (e) {
      log("Exception in getUserReviews: $e");
      customSnackbar(title: "Error", message: "Failed to load reviews");
    } finally {
      isLoading(false);
      isLoadingMore(false);
    }
  }

  // Load more reviews when scrolling
  Future<void> loadMoreReviews() async {
    if (!reachedEnd.value && !isLoadingMore.value) {
      await getUserReviews();
    }
  }

  // Submit a new review
  Future<bool> submitReview(int rating, String reviewDescription) async {
    isLoading(true);
    bool result = false;

    try {
      final url = ApiUrl.createUserReview;
      final body = {
        "revieweeID": revieweeId.value,
        "rating": rating,
        "reviewDescription": reviewDescription,
      };

      final response = await ApiBase.postRequest(extendedURL: url, body: body);

      log("Submit Review API Response Code: ${response.statusCode}");

      if (response.statusCode == 200 || response.statusCode == 201) {
        final responseData = jsonDecode(response.body);

        if (responseData['isSuccess'] == true) {
          log("Review submitted successfully");

          // Refresh reviews
          resetPagination();
          await getUserReviews();
          result = true;
        } else {
          log("Submit Review API returned error: ${responseData['message']}");
          customSnackbar(
            title: "Error",
            message: responseData['message'] ?? "Failed to submit review",
            duration: 1,
          );
        }
      } else {
        final responseData = jsonDecode(response.body);
        log("Submit Review API failed with status: ${response.body}");
        customSnackbar(
          title: "Error",
          message: responseData['message'] ?? "Failed to submit review",
          duration: 1,
        );
      }
    } catch (e) {
      customSnackbar(
        title: "Error",
        message: "Failed to submit review",
        duration: 1,
      );
    } finally {
      isLoading(false);
    }

    return result;
  }
}