using FindAndDrive.Domain.Interfaces.Gateways;
using FindAndDrive.Domain.Models.DTO.Request;
using Newtonsoft.Json;
using System.Text;
using FindAndDrive.Domain.Models.Settings;
using Microsoft.Extensions.Options;
using System.Xml.Serialization;
using Newtonsoft.Json.Linq;
using FindAndDrive.Domain.Models.DTO.Response;
using System.Data.SqlTypes;
using System.Runtime.Serialization;
using System.Xml;
using System.Runtime.Serialization.Json;
using System.Text.Json;
using System.Collections.Generic;
using FindAndDrive.Domain.Models.Exceptions;
using System.Runtime.InteropServices;
using FindAndDrive.Domain.Models.Gateways.Transunion;
using System.Text.RegularExpressions;

namespace FindAndDrive.Gateway.TransUnion;

public class TransUnionGateway : ITransUnionGateway
{
    private readonly HttpClient _httpClient;
    private readonly TransUnionSettings _settings;
    public TransUnionGateway(HttpClient httpClient, IOptions<TransUnionSettings> settings)
    {
        _httpClient = httpClient;
        _settings = settings.Value;
    }

    public async Task<TransUnionResponse> DoCreditInfo(TransUnionRequest request)
    {
        var httpContent = new StringContent(request.xmlRequest, Encoding.UTF8, "application/soap+xml");
        var httpResponse = await _httpClient.PostAsync("https://autotest.transunion.co.za/TUQuickCreditAndFraudv2/TransUnionQuickCrtAndFrd.asmx", httpContent);

        if (!httpResponse.IsSuccessStatusCode)
        {
            throw new GatewayErrorException(httpResponse.ReasonPhrase
                ?? "Transunion Gateway failed with a status code of:" + httpResponse.StatusCode);
        }

        var content = await httpResponse.Content.ReadAsStringAsync();

        var response = ParseXmlToTransUnionResponse(content);

        if (response.TransUnionAddress == null && response.TransUnionConsumerInfo == null && response.TransUnionCreditScore.Credit_Score == "-")
        {
            throw new BadRequestException("Transunion sent back no data for the provided details");
        }
        if(response.TransUnionCreditScore.Credit_Score == "-")
        {
            throw new BadRequestException("No credit score data found for given details");
        }
        if (response.TransUnionAddress == null)
        {
            throw new BadRequestException("TransUnion sent back no Address data on the provided details");
        }
        if (response.TransUnionConsumerInfo == null)
        {
            throw new BadRequestException("TransUnion sent back no ConsumerInfo data on the provided details");
        }
        if (response.TransUnionCreditScore == null)
        {
            throw new BadRequestException("TransUnion sent back no CreditScore data on the provided details");
        }
        if (response.AuditLog == null)
        {
            throw new BadRequestException("TransUnion sent back no AuditLog data on the provided details");
        }

        return response;
    }

    private TransUnionResponse ParseXmlToTransUnionResponse(string content)
    {
        try
        {
            var xmlResponse = new XmlDocument();
            xmlResponse.LoadXml(content);

            var soapNamespaceManager = new System.Xml.XmlNamespaceManager(xmlResponse.NameTable);
            soapNamespaceManager.AddNamespace("soap", "http://www.w3.org/2003/05/soap-envelope");
            soapNamespaceManager.AddNamespace("ns", "http://tempuri.org/");

            var resultNode = xmlResponse.SelectSingleNode("//ns:doQuickCreditAndFraudResult", soapNamespaceManager);
            string resultJson = resultNode.InnerText;

            JArray jsonArray = JArray.Parse(resultJson);


            TransUnionResponse response = null;
            TransUnionConsumerInfo consumerInfo = null;
            TransUnionAddress address = null;
            TransunionCreditScore creditScore = null;
            string auditLog = null;


            JArray creditScoreArray = (JArray)jsonArray[0]["Value"];
            
            foreach (var item in creditScoreArray)
            {

                var key = item[0].Value<string>("Key");
                if (key != null && key == "CreditScore")
                {
                    creditScore = item[0]["Value"].ToObject<TransunionCreditScore>();

                }
                if (key != null && key == "ConsumerInfo")
                {
                    
                    consumerInfo = item[0]["Value"].ToObject<TransUnionConsumerInfo>();
                    if (item[1].Value<string>("Key") != null && item[1].Value<string>("Key") == "LastAddress")
                    { 
                        address = item[1]["Value"].ToObject<TransUnionAddress>();
                    }

                }
                if (key != null && key == "AuditLog")
                {
                    auditLog = item[0]["Value"].ToString();


                }
            }

            response = new TransUnionResponse { TransUnionAddress = address, TransUnionConsumerInfo = consumerInfo, TransUnionCreditScore = creditScore, AuditLog = auditLog };

            return response;
        }
        catch (Exception ex)
        {
            throw new GatewayErrorException($"Failed to parse Transunion data, with exception: {ex.Message}");
        }

    }

    public async Task<string> DoCreditInfoIndependent(TransUnionRequest request)
    {
        var httpContent = new StringContent(request.xmlRequest, Encoding.UTF8, "application/soap+xml");
        var httpResponse = await _httpClient.PostAsync("https://autotest.transunion.co.za/TUQuickCreditAndFraudv2/TransUnionQuickCrtAndFrd.asmx", httpContent);

        if (!httpResponse.IsSuccessStatusCode)
        {
            throw new GatewayErrorException(httpResponse.ReasonPhrase
                ?? "Transunion Gateway failed with a status code of:" + httpResponse.StatusCode);
        }

        var content = await httpResponse.Content.ReadAsStringAsync();

        var transUnionIndependentResponse = new TransUnionIndependentResponse
        {
            xmlResponse = content
        };
        return transUnionIndependentResponse.xmlResponse;

    }

    private static readonly Regex sWhitespace = new Regex(@"\s+");
    public static string ReplaceWhitespace(string input, string replacement)
    {
        return sWhitespace.Replace(input, replacement);
    }


}