using System;
using System.Collections.Generic;
using Amazon.Lambda.Core;
using Amazon.Lambda.APIGatewayEvents;
using MySqlConnector;
using System.Data;
using classes;


namespace PMF
{
    public class SystemSettings: Pmfbase
    {
     
        MySqlDataReader _reader;
        

        public APIGatewayProxyResponse GetSettings(APIGatewayProxyRequest request, ILambdaContext context)
        {
            APIGatewayProxyResponse response;
            string statement = "DB::GetSettings";
            string userId = "";
            Dictionary<string, string> dict = new Dictionary<string, string>();

            try
            {
                string validationMessage = string.Empty;
                if (!Helper.IsRequestEmpty(request))
                {
                    var validRequest = Helper.ValidateRequestParameters(ref validationMessage, request.QueryStringParameters, "userId");
                    if (validRequest)
                    {
                        if (_con.State == ConnectionState.Closed) _con.Open();
                        string result = string.Empty;
                        userId = Helper.CleanInput(request.QueryStringParameters["userId"]);

                        statement = "SELECT strKey, strValue FROM setting WHERE Active = 1";

                        var cmd = new MySqlCommand();
                        cmd.Connection = _con;
                        cmd.CommandText = statement;
                        cmd.ExecuteNonQuery();

                        _reader = cmd.ExecuteReader();
                        List<Object> settings = new List<object> { };
                        if (_reader.HasRows)
                        {
                            while (_reader.Read())
                            {
                                settings.Add(new
                                {
                                    strKey = _reader.GetValue(0).ToString(),
                                    strValue = _reader.GetValue(1).ToString(),
                                });
                            }

                            _reader.Close();
                            response = HttpService.CreateResponse(200, payload: settings);
                        }
                        else
                        {
                            response = HttpService.CreateResponse(200, payload: "No settings found");
                        }
                    }
                    else
                    {
                        response = HttpService.CreateResponse(400, payload: validationMessage);
                    }
                }
                else
                {
                    response = HttpService.CreateResponse(400, payload: "No parameters provided");
                }
                _logger.WriteLog(userId, statement, response.Body, "DB");
                return response;

            }
            catch (Exception ex)
            {
                _logger.LogMessage(context, "Processing request failed: " + ex.Message);
                _logger.WriteLog(userId, statement, ex.Message, "DB");
                return HttpService.CreateResponse(500, payload: ex.Message);
            }
            finally
            {
                if (_reader != null) _reader.Close();
                if (_con != null || _con.State == ConnectionState.Open) _con.Close();
            }
        }
    }
}