using System;
using Amazon.Lambda.Core;
using Amazon.Lambda.APIGatewayEvents;
using Newtonsoft.Json;
using MySqlConnector;
using Newtonsoft.Json.Linq;
using System.Data;
using classes;
using Model.ResponseModel;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;

namespace PMF
{
    public class StreamEvidence: Pmfbase
    {
       
        public async Task<APIGatewayProxyResponse> GetStreamEvidence(APIGatewayProxyRequest request, ILambdaContext context)
        {
            APIGatewayProxyResponse response;
            string statement = "iForce::GetStreamEvidence";
            string userId = "";
            MySqlDataReader _reader = null;

            try
            {
                string validationMessage = string.Empty;
                if (!Helper.IsRequestEmpty(request))
                {
                    var validRequest = Helper.ValidateRequestParameters(ref validationMessage, request.QueryStringParameters, "sessionToken", "evidenceToken", "userId");

                    if (validRequest)
                    {
                        var sessionToken = request.QueryStringParameters["sessionToken"];
                        var evidenceToken = request.QueryStringParameters["evidenceToken"];
                        userId = request.QueryStringParameters["userId"];

                        var handler = new HttpClientHandler
                        {
                            ServerCertificateCustomValidationCallback = Helper.ServerCertificateCustomValidation
                        };

                        var client = new HttpClient(handler)
                        {
                            BaseAddress = new Uri(baseUrl),
                            Timeout = TimeSpan.FromSeconds(Constants.TimeDefaultValue)
                        };

                        try
                        {
                            var iForceResponse = await client.GetAsync($"IForce/queryevidencestream?SessionToken={sessionToken}&EvidenceToken={evidenceToken}");

                            statement = $"IForce/queryevidencestream?SessionToken={sessionToken}&EvidenceToken={evidenceToken}";

                            var body = await iForceResponse.Content.ReadAsStringAsync();

                            if (iForceResponse.StatusCode == HttpStatusCode.OK)
                            {
                                var payload = JsonConvert.DeserializeObject<Object>(body);
                                response = HttpService.CreateResponse(200, payload: payload);
                            }
                            else
                            {
                                var error = JsonConvert.DeserializeObject<ErrorResponse>(body);
                                return HttpService.CreateResponse(200, payload: "Stream Unavailable");
                            }
                        }
                        catch (Exception)
                        {
                            return HttpService.CreateResponse(504, payload: Constants.NO_RESPONSE);
                        }

                    }
                    else
                    {
                        response = HttpService.CreateResponse(400, payload: $"{validationMessage}");
                    }
                }
                else
                {
                    _logger.LogMessage(context, $"Processing request failed invalid request");
                    return HttpService.CreateResponse(400, payload: "No parameters provided");
                }
                _logger.WriteLog(userId, statement, response.Body, "TMT");
            }
            catch (Exception ex)
            {
                _logger.WriteLog(userId, statement, ex.Message, "TMT");
                return HttpService.CreateResponse(500, payload: ex);
            }
            finally
            {
                if (_reader != null) _reader.Close();
                if (_con != null || _con.State == ConnectionState.Open) _con.Close();
            }

            return response;
        }

    }

}