namespace Xylem.Common.Service.MeterProcessState.Controllers
{
    using global::Common.Logic.Extensions.SQL;

    using Newtonsoft.Json;

    using System;
    using System.Configuration;
    using System.IO;
    using System.Text;
    using System.Web;
    using System.Web.Http;

    [RoutePrefix("configurationjson")]
    public class ConfigurationJsonController : ApiController
    {
        [HttpGet]
        [Route]
        public IHttpActionResult Get()
        {
            var message = String.Empty;
            var configurationText = String.Empty;

            try
            {
                var connectionString = ConfigurationManager.ConnectionStrings["Default"].ConnectionString;
                var configurationBytes = SQLConnection
                    .CreateSQLConnection(connectionString)
                    .CreateCommand(@"
                        SELECT TOP 1 f.FileContent
                          FROM FileClusterStore AS fcs
                          JOIN FileMapToCluster AS fmc
	                        ON fcs.FileId = fmc.FileMapToCluster_FileClusterId
                          JOIN [File] AS f 
	                        ON fmc.FileMapToCluster_FileId = f.FileId
                         WHERE FileCategoryID = 2
                         ORDER BY f.FileId DESC")
                    .FirstOrDefault(x => x.GetValue<Byte[]>(0));
                configurationText = Encoding.ASCII.GetString(configurationBytes);
            }
            catch (Exception dbe)
            {
                message = dbe.Message;

                try
                {
                    var configurationPath = HttpContext.Current.Request.MapPath("configuration.json");
                    configurationText = File.ReadAllText(configurationPath);
                }
                catch (Exception fe)
                {
                    message = fe.Message;
                }
            }

            try
            {
                var configurationJson = JsonConvert.DeserializeObject(configurationText);

                return this.Json(configurationJson, new JsonSerializerSettings(), Encoding.UTF8);
            }
            catch (Exception e)
            {
                return this.BadRequest($"{e.Message}{Environment.NewLine}{message}");
            }
        }
    }
}