using DealerSelection.Common.Interfaces.HttpClient;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using Microsoft.VisualBasic;
using Newtonsoft.Json;
using System.Data.SqlClient;
using System.Net;
using System.Net.Http.Headers;
using System.Text;

namespace WebJobService;

public class Service : IService
{
    private ILogger _logger;
    private IHttpClientHandler ClientHandler { get; }
    private IRepository Repository { get; }
    public Service(IHttpClientHandler clientHandler, ILogger<Service> logger, IRepository repository)
    {
        _logger = logger;
        ClientHandler = clientHandler;
        Repository = repository;
    }

    public void Run()
    {
        _logger.LogInformation($"WJ:-Service Started at  {DateTime.Now} ");
        Console.WriteLine("ILogger Started");
        GetRecordToProcess().Wait();
        _logger.LogInformation($"WJ:-Service Completed");
    }

    private async Task GetRecordToProcess()
    {
        try
        {
            var recordList = await Repository.GetDealerSelectionDataForJobAsync();// recordsToProcess.ToList();         
            _logger.LogInformation($"WJ:-Records to Process: {recordList.Count}");
            foreach (var item in recordList)
            {
                await HitDeleareSelectionApi(item);
            }
            _logger.LogInformation($"WJ:-Records processed sucessfully: {recordList.Count}.");
        }
        catch (Exception exp)
        {
            _logger.LogError($"WJ:-Error at GetRecordToProcess {exp.StackTrace}");
            throw ;
        }
    }

    private async Task HitDeleareSelectionApi(SelectedData item)
    {
        var builder = new ConfigurationBuilder().AddJsonFile($"appsettings.json", true, true);
        var config = builder.Build();
        var baseApiUrl = config["BaseApiUrl"];
        string jwtToken = GenerateToken(baseApiUrl, config["ClientId"], config["ClientSecret"]);

        string url = string.Format($"{baseApiUrl}/DealerSelection?buId={item.BuId}&recordId={item.RecordId}");
        try
        {

            _logger.LogInformation($"WJ:-Deler Selection URl Request: {url}.");
            HttpClient request = ClientHandler.GetHttpClient();
            Uri requestUri = new(url);
            var httpContent = new MultipartFormDataContent();
            httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
            request.DefaultRequestHeaders.Add("Authorization", "Bearer " + jwtToken);
            HttpResponseMessage response = request.PostAsync(url, null).Result;          
            _logger.LogInformation($"WJ:-Deler Selection URl ResponseStatus: {response}");
        }
        catch (Exception ex)
        {
            _logger.LogError($"WJ:-Error at GetRecordToProcess:- {ex.StackTrace}");
            throw;
        }
    }

    private  string GenerateToken(string baseApiUrl, string client_Id, string client_secret)
    {
        _logger.LogInformation($"WJ:-GenerateToken Started.");
        string jwtTokenApiUrl = string.Format($"{baseApiUrl}/jwtauth/gettoken");

        var requestBody = new
        {
            client_id = client_Id,
            client_secret
        };

        string requestJson = JsonConvert.SerializeObject(requestBody);
        byte[] bodyBytes = Encoding.UTF8.GetBytes(requestJson);

        HttpWebRequest request = WebRequest.Create(jwtTokenApiUrl) as HttpWebRequest;
        request.Method = "POST";
        request.ContentType = "application/json";
        request.ContentLength = bodyBytes.Length;

        string jwtToken = string.Empty;
        try
        {
            using (var dataStream = request.GetRequestStream())
            {
                dataStream.Write(bodyBytes, 0, bodyBytes.Length);
                dataStream.Close();
            }

            HttpWebResponse response = request.GetResponse() as HttpWebResponse;
            Stream responseStream = response.GetResponseStream();

            using (StreamReader reader = new StreamReader(responseStream))
            {
                jwtToken = reader.ReadToEnd();
            }
            _logger.LogInformation($"WJ:-GenerateToken End: {DateAndTime.Now} - Token :{jwtToken}");
        }

        catch (Exception ex)
        {
            _logger.LogError($"WJ:-Error at GenerateToken:- {ex.StackTrace}");
            throw;
        }
        return jwtToken;
    }

}