import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:http/http.dart' as http;
import 'package:nhance_app_pwa/customAppBar/toastHelper.dart';
import 'package:nhance_app_pwa/pages/service/TokenService.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'dart:convert';

import '../../../config/environment.dart';

import 'package:nhance_app_pwa/logger.dart';

class ApiService {
  final BuildContext context;
  String? _postToken;

  ApiService(this.context) {
    _initializeToken();
  }

  Future<void> _initializeToken() async {
    _postToken = await TokenService.getPostToken();
  }

  Future<Map<String, dynamic>> getActiveAndInactivePolicyDetails(
      String? clientId,
      String? empCode,
      String? status,
      String? branchID,
      String? mobileNo,
      String? emailId) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse(
        '${Environment.apiUrl}getEmployeeActiveOrInactivePolicy?client_id=${clientId ?? ''}&emp_code=${empCode ?? ''}&type=${status ?? ''}&client_branch_id=${branchID ?? ''}&mobile_no=${mobileNo ?? ''}&email_id=${emailId ?? ''}');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> getClaimsHistoryToApi(
      String ticket_type_id) async {
    logDebug("getCashDepositDetailsToApi1");
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url =
        Uri.parse('${Environment.apiUrl}claimView?ticket_id=$ticket_type_id');

    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> getAdvertisementImageToApi(clientID) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse(
        '${Environment.apiUrl}getAdvertisementImage?client_id=$clientID');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> getCashlessAndReimbursementToApi() async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse('${Environment.apiUrl}getFEContent');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> getSelfEmployeeProfileDetails(
      String clientId, String empCode, String branchID) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse(
        '${Environment.apiUrl}getEmployeeProfile?emp_code=$empCode&client_id=$clientId&client_branch_id=$branchID');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  /// Dependent-add UI: policy details, family slots, and add_button_show.
  Future<Map<String, dynamic>> getEmployeePolicy({
    required String id,
    required String empCode,
    required String clientId,
    required String clientBranchId,
    required String clientPolicyId,
  }) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse(
        '${Environment.apiUrl}getEmployeeByPolicy?id=$id&emp_code=$empCode&client_id=$clientId&client_branch_id=$clientBranchId&client_policy_id=$clientPolicyId');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  /// Add or update dependent (creates with pending_approval).
  Future<Map<String, dynamic>> addEmployeeAndDependence(
      List<Map<String, dynamic>> dependents) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse('${Environment.apiUrl}addEmployeeAndDependence');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
      'Content-Type': 'application/json',
    };
    final response = await _makePostRequestWithoutFormData(
      url,
      jsonEncode(dependents),
      headers,
    );
    return response;
  }

  /// Soft-delete a dependent (status → deleted, is_active → 0).
  Future<Map<String, dynamic>> deleteDependence(String dependentId) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url =
        Uri.parse('${Environment.apiUrl}deleteDependence?id=$dependentId');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> getFAQsApiData() async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse('${Environment.apiUrl}FAQ');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> getTrackClaimsList(
      String empPrimaryId, mobileNo, emailID) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse(
        '${Environment.apiUrl}get_ticket_data?emp_id=$empPrimaryId&mobile_number=$mobileNo&email_id=$emailID');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> getTicketListByMobile(String empMobileNo) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }

    final url =
        Uri.parse('${Environment.apiUrl}ticketList?mobile=$empMobileNo');

    final url1 = Uri.parse('${Environment.apiUrl}ticketList?mobile=1234567890');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> getTicketConverList(String thz_id) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }

    final url1 = Uri.parse('${Environment.apiUrl}ticketList?mobile=$thz_id');

    final url =
        Uri.parse('${Environment.apiUrl}ticketConversationList?thz_id=$thz_id');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> getInsurerClaimFormDownloadUrl(
      String clientPolicyId) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse(
        '${Environment.apiUrl}getInsurerClaimFormDownloadUrl?client_policy_id=$clientPolicyId');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> getWellnessLink(
      empPrimaryId, client_policy_id) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url =
        Uri.parse('${Environment.apiUrl}getWellnessURL?emp_id=$empPrimaryId');
    // final url = Uri.parse('${Environment.apiUrl}getWellnessURL?emp_id=$empPrimaryId&client_policy_id=$client_policy_id');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> getEcardRequest(eCardParam) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse('${Environment.apiUrl}ecardRequest');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
      'Content-Type': 'application/json', // Ensure content type is JSON
    };
    final jsonBody = jsonEncode(eCardParam);
    // Send formDataJson as the body
    final response =
        await _makePostRequestWithoutFormData(url, jsonBody, headers);
    return response;
  }

  Future<Map<String, dynamic>> sendRetailPolicyDetails(formData) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse('${Environment.apiUrl}addEmpRetailPolicy');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
      'Content-Type': 'application/json', // Ensure content type is JSON
    };
    final jsonBody = jsonEncode(formData);
    // Send formDataJson as the body
    final response =
        await _makePostRequestWithoutFormData(url, jsonBody, headers);
    return response;
  }

  Future<bool> updateMobileNumber(Map<String, dynamic> updateParam) async {
    if (_postToken == null) {
      await _initializeToken();
    }

    final url = Uri.parse('${Environment.apiUrl}updateMobileNumber');

    final headers = {
      'Authorization': 'Bearer $_postToken',
      'Content-Type': 'application/json',
    };

    final jsonBody = jsonEncode(updateParam);

    final response = await _makePostRequestWithoutFormData(
      url,
      jsonBody,
      headers,
    );

    return response['status'] == 'success';
  }

  Future<Map<String, dynamic>> fetchPolicyTypeAndInsurer() async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse('${Environment.apiUrl}getPolicyTypeAndInsurer');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> fetchDepartmentList(
      String clientId, String empCode) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse(
        '${Environment.apiUrl}get_ticket_type?client_id=$clientId&emp_code=$empCode');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> getClaimTypeMasterApi() async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse('${Environment.apiUrl}getClaimTypeMaster');
    final headers = {
      'Authorization': 'Bearer $_postToken' ?? '',
    };
    final response = await _makeGetRequest(url, headers);
    return response;
  }

  Future<Map<String, dynamic>> sendTicketFormDataToApi(
      Map<String, dynamic> formData) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse('${Environment.apiUrl}ticketSave');
    // Convert formData to Map<String, String>
    Map<String, String> stringFormData =
        formData.map((key, value) => MapEntry(key, value.toString()));
    final response = await _makePostRequest(url, stringFormData, {
      'Content-Type': 'application/x-www-form-urlencoded',
      'Authorization': 'Bearer $_postToken' ?? '',
    });
    return response;
  }

  Future<Map<String, dynamic>> sendClaimsFormDataToApi(
      Map<String, dynamic> formData) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse('${Environment.apiUrl}initiateClaim');
    // Convert formData to Map<String, String>
    Map<String, String> stringFormData =
        formData.map((key, value) => MapEntry(key, value.toString()));
    final response = await _makePostRequest(url, stringFormData, {
      'Content-Type': 'application/x-www-form-urlencoded',
      'Authorization': 'Bearer $_postToken' ?? '',
    });
    return response;
  }

  Future<Map<String, dynamic>> sendClaimsMessageToApi(
      Map<String, dynamic> formData) async {
    logDebug(_postToken);
    if (_postToken == null) {
      await _initializeToken();
    }
    logDebug("sendClaimsMessageToApi");
    final url = Uri.parse('${Environment.apiUrl}ticketConversationSave');
    // final url = Uri.parse('${Environment.apiUrlTicket}/messages/create');
    // Convert formData to Map<String, String>
    logDebug("sendClaimsMessageToApi1");
    Map<String, String> stringFormData =
        formData.map((key, value) => MapEntry(key, value.toString()));
    final response = await _makePostRequest(url, stringFormData, {
      'Content-Type': 'application/x-www-form-urlencoded',
      'Authorization': 'Bearer $_postToken' ?? '',
    });
    return response;
  }

  Future<void> _clearLocalStorageAndRedirect() async {
    if (!context.mounted) return;
    await TokenService().logout(context);
  }

  Future<Map<String, dynamic>> getBotDetails(
      Map<String, dynamic> formData) async {
    if (_postToken == null) {
      await _initializeToken();
    }
    final url = Uri.parse('${Environment.apiUrl}getChatResponse');
    // Convert formData to Map<String, String>
    Map<String, String> stringFormData =
        formData.map((key, value) => MapEntry(key, value.toString()));
    logDebug(url);
    final response = await _makePostRequest(url, stringFormData, {
      'Content-Type': 'application/x-www-form-urlencoded',
      'Authorization': 'Bearer $_postToken' ?? '',
    });
    return response;
  }

  // Future<Map<String, dynamic>> getBotDetails(String requestFor, is_option,
  //     option, returnMessage, mobileNo, policyID) async {
  //   logDebug('requestFor: $requestFor');
  //   logDebug('is_option: $is_option');
  //   logDebug('option: $option');
  //   logDebug('returnMessage:  $returnMessage');
  //   logDebug('mobileNo: $mobileNo');
  //   logDebug('policyID: $policyID');
  //   if (_postToken == null) {
  //     await _initializeToken();
  //   }
  //   final url;
  //   if (is_option != '0') {
  //     url = Uri.parse(
  //         '${Environment.apiUrl}getChatResponse?request_for=$requestFor&is_option=$is_option&option=$option&mobile_no=$mobileNo&policy_id=$policyID');
  //   } else {
  //     url = Uri.parse(
  //         '${Environment.apiUrl}getChatResponse?request_for=$requestFor&is_option=$is_option&text=$returnMessage&value=$option&mobile_no=$mobileNo&policy_id=$policyID');
  //   }
  //   logDebug(url);
  //
  //   final headers = {
  //     'Authorization': 'Bearer $_postToken' ?? '',
  //   };
  //   final response = await _makeGetRequest(url, headers);
  //   return response;
  // }

  Future<Map<String, dynamic>> _makeGetRequest(
      Uri url, Map<String, String> headers) async {
    // Always refresh token at request time to avoid using stale login tokens.
    if (headers.containsKey('Authorization')) {
      _postToken = await TokenService.getPostToken();
      headers['Authorization'] = 'Bearer ${_postToken ?? ''}';
    }
    // Add global APP_SIGNATURE header
    headers['APP-SIGNATURE'] =
        'nhance-2025-signature-T8f6gV9k5fK2wf5V5c4vId3b0J8z6cAm2x8Y';
    final response = await http.get(url, headers: headers);
    return _handleResponse(response);
  }

  Future<Map<String, dynamic>> _makePostRequest(
      Uri url, Map<String, String> body, Map<String, String> headers) async {
    // Always refresh token at request time to avoid using stale login tokens.
    if (headers.containsKey('Authorization')) {
      _postToken = await TokenService.getPostToken();
      headers['Authorization'] = 'Bearer ${_postToken ?? ''}';
    }
    // Add global APP_SIGNATURE header
    headers['APP-SIGNATURE'] =
        'nhance-2025-signature-T8f6gV9k5fK2wf5V5c4vId3b0J8z6cAm2x8Y';
    final response = await http.post(url, headers: headers, body: body);
    return _handleResponse(response);
  }

  Future<Map<String, dynamic>> _makePostRequestWithoutFormData(
      Uri url, String body, Map<String, String> headers) async {
    // Always refresh token at request time to avoid using stale login tokens.
    if (headers.containsKey('Authorization')) {
      _postToken = await TokenService.getPostToken();
      headers['Authorization'] = 'Bearer ${_postToken ?? ''}';
    }
    // Add global APP_SIGNATURE header
    headers['APP-SIGNATURE'] =
        'nhance-2025-signature-T8f6gV9k5fK2wf5V5c4vId3b0J8z6cAm2x8Y';
    final response = await http.post(url, headers: headers, body: body);
    return _handleResponse(response);
  }

  Future<Map<String, dynamic>> _handleResponse(http.Response response) async {
    if (response.statusCode == 200) {
      return jsonDecode(response.body);
    } else if (response.statusCode == 401) {
      await _clearLocalStorageAndRedirect();
      return {};
    } else if (response.statusCode == 403) {
      await _clearLocalStorageAndRedirect();
      return {};
    } else if (response.statusCode == 451) {
      final body = jsonDecode(response.body);
      final message = body['message'];
      ToastHelper.showWarningToast(context, message);
      return {};
    } else if (response.statusCode == 429) {
       final body =  jsonDecode(response.body);
       final message = body['message'];
      ToastHelper.showWarningToast(context, message);
      return {};
    } else {
      // Return API error payload when available so callers can show messages.
      try {
        final decoded = jsonDecode(response.body);
        if (decoded is Map<String, dynamic>) {
          return decoded;
        }
      } catch (_) {}
      throw Exception('Failed to load data');
    }
  }
}