import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:shared_preferences/shared_preferences.dart';

import '../models/kyc_model.dart';
import 'kyc_service.dart';

class KycController extends GetxController {
  var kycList = <KycModel>[].obs; // Using an observable list to store KYC data
  var isLoading = false.obs;

  Future<void> fetchKycData() async {
    try {
      SharedPreferences prefs = await SharedPreferences.getInstance();
      String? token = prefs.getString('token');
      isLoading(true);

      // Call the API to get KYC data
      var data = await KycService().getKycData(token!);

      if (data != null && data.isNotEmpty) {
        // Parse the list of KYC objects
        kycList.value = KycModel.fromJsonList(data); // Convert to List<KycModel>
      } else {
        print("No KYC data found or API response is empty.");
      }

      print("KYC details: ${kycList}");
    } finally {
      isLoading(false);
    }
  }

  // Update KYC status locally and persist the changes
  Future<void> updateKycStatus(KycModel kycModel, String status, String comment) async {
    final index = kycList.indexOf(kycModel);
    if (index != -1) {
      kycList[index].status = status; // Update status locally
      saveKycToLocalStorage(); // Persist the changes locally
      update(); // Notify listeners about the change

      // Show a success message after updating
      Get.snackbar(
        "Success",
        "KYC status updated to $status.",
        snackPosition: SnackPosition.BOTTOM,
        backgroundColor: Colors.green,
        colorText: Colors.white,
      );
    }
  }

  // Save the current KYC list to SharedPreferences
  Future<void> saveKycToLocalStorage() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    List<String> kycListJson = kycList.map((kyc) => jsonEncode(kyc.toJson())).toList();
    prefs.setStringList('kycList', kycListJson); // Save the updated list locally
  }

  // Load the KYC list from SharedPreferences
  Future<void> loadKycFromLocalStorage() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    List<String>? storedKycList = prefs.getStringList('kycList');

    if (storedKycList != null) {
      // If local data is found, update the KYC list with the locally saved data
      List<KycModel> localKycList = storedKycList.map((kycJson) => KycModel.fromJson(jsonDecode(kycJson))).toList();

      // Merge local data with the API data (if any exists in kycList)
      for (var localKyc in localKycList) {
        int index = kycList.indexWhere((kyc) => kyc.id == localKyc.id);
        if (index != -1) {
          // Update the status with the locally saved status
          kycList[index].status = localKyc.status;
        }
      }
    }
  }
}