using System;
using System.Diagnostics;
using System.Collections.Generic;
using System.Text;

using bsmd.AISService.AIS;

namespace bsmd.AISService.DB
{    

    internal class AISPosReport
    {
        /// <summary>
        /// Saves a (class A or B) position report
        /// </summary>
        /// <param name="target">target to save</param>
        /// <returns>id of insert operation (to update hotposition table)</returns>
        public static int? Save(AIS_Target target, DBConnector con, AISStation aisStation)
        {
            if (target.LastPosReport == null) return null;
            
            if (target.LastPosReport is AIS_PosReport)
            {
                // Trace.WriteLine("saving class A pos report");
                AIS_PosReport pr = target.LastPosReport as AIS_PosReport;

                if (aisStation != null)
                {
                    aisStation.UpdateWithPositionReport(pr.MMSI, pr.Latitude, pr.Longitude, pr.Timestamp);
                    aisStation.LastPosTimestamp = pr.Timestamp;
                    aisStation.OnAir = true;
                }

                string query = string.Format("INSERT INTO aisposreport (mmsi, navstatus, rot, cog, sog, accur, longitude, latitude, heading, timestamp, stationid) VALUES ({0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}, {8}, '{9}', {10})",
                    pr.MMSI, pr.NavStatusVal, pr.ROTVal, pr.COGVal, pr.SOGVal, pr.Accuracy,
                    pr.LongitudeVal, pr.LatitudeVal, pr.TrueHeading ?? 511, pr.DBTimestamp, 
                    (aisStation != null) ? aisStation.Id : 0);
                
                con.ExecuteNonQuery(query);

                object result = con.ExecuteScalar("SELECT LAST_INSERT_ID()");
                if (result == null) return null;
                int pid = Convert.ToInt32(result);
                return pid;
            }

            if (target.LastPosReport is AIS_ClassB)
            {
                // Trace.WriteLine("saving class B pos report");
                AIS_ClassB pr = target.LastPosReport as AIS_ClassB;
                aisStation.UpdateWithPositionReport(pr.MMSI, pr.Latitude, pr.Longitude, pr.Timestamp);

                string query = string.Format("INSERT INTO aisposreport (mmsi, navstatus, rot, cog, sog, accur, longitude, latitude, heading, timestamp, stationid) VALUES ({0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}, {8}, '{9}', {10})",
                    pr.MMSI, 0, 0, pr.CogVal, pr.SogVal, 0, pr.LongitudeVal, pr.LatitudeVal,
                    pr.TrueHeading ?? 511, pr.DBTimestamp, (aisStation != null) ? aisStation.Id : 0);

                con.ExecuteNonQuery(query);

                object result = con.ExecuteScalar("SELECT LAST_INSERT_ID()");
                if (result == null) return null;
                int pid = Convert.ToInt32(result);
                return pid;
            }

            if (target.LastPosReport is AIS_ClassBExt)
            {
                Trace.WriteLine("AIS class B ext not supported (yet)");
                // TODO: Import ClassB Extended report!

            }

            Trace.WriteLine(string.Format("save pos report: we should not be here.. class type: {0}", target));

            return null;
        }


    }
}