//
//  Class:			Util
//	Current CLR:	4.0.30319.34209
//	System:			Microsoft Visual Studio 10.0
//	Author:			dani
// 	Created:		6/17/2015 7:12:38 AM
//
//	Copyright (c) 2015 Informatikbüro Daniel Schick. All rights reserved.

using System;
using System.Collections.Generic;
using log4net;
using bsmd.database;

namespace bsmd.ExcelReadService
{
    public class Util
    {
        private static ILog _log = LogManager.GetLogger(typeof(Util));

        public static bool ProcessSheet(ExcelReader reader, out string readMessage, out MessageCore messageCore)
        {
            readMessage = "ok";
            messageCore = Util.LookupMessageCore(reader);

            // start parsing fields
            string sheetVersion = reader.GetCell("Portcall", 2, 1) as string;
            messageCore.SietasSheetVersion = sheetVersion;

            DBManager.Instance.Save(messageCore);



            return true;
        }

        /// <summary>
        /// Check with cell values if this message core is already in our DB
        /// </summary>                
        private static MessageCore LookupMessageCore(ExcelReader reader)
        {
            // lookup using field values
            double imoDouble = (double) reader.GetCell("SHIP", 13, 6);
            string imo = Convert.ToInt32(imoDouble).ToString();
            
            string etaDateString = reader.GetCell("Portcall", 16, 8).ToString();
            string etaTime = reader.GetCell("Portcall", 16, 10).ToString();
            DateTime dt = Util.ConstructDate(etaDateString, etaTime);
            string poc = reader.GetCell("Portcall", 16, 1) as string;

            MessageCore result = null;

            if (DBManager.Instance.GetMessageCoreByShipInfos(imo, dt, poc) == null)
            {
                result = new MessageCore();

                result.IMO = imo;
                result.ReportStatus = MessageCore.ReportStatusEnum.COMPLETE;
                result.Portname = poc;
                result.ETA = dt;
                if (result.IMO.Length > 7)
                {
                    _log.WarnFormat("IMO {0} is longer than 7 chars, truncating!", result.IMO);
                    result.IMO = result.IMO.Substring(0, 7);
                }
                DBManager.Instance.Save(result);
            }


            return result;
        }

        private static DateTime ConstructDate(string etaDateString, string etaTime)
        {
            DateTime result = DateTime.Now;
            if (DateTime.TryParse(etaDateString, out result))
            {
                TimeSpan sp;
                if (TimeSpan.TryParse(etaTime, out sp))
                    result += sp;
            }
            return result;
        }

    }
}