using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Data.SqlClient;

namespace DatabaseImport
{
    public class MMEPositions //: AbstractOLEDbWrapper
    {
        public string S_GUID { get; }

        public string Position { get; }

        public string Text_L1 { get; }

        public string Text_L2 { get; }

        public long Version { get; }

        public DateTime Date { get; }

        public string Remarks { get; }

        public bool Expired { get; }

        public string SortKey { get; }

        public DateTime Last_Change { get; }

        public string Last_Change_Text { get; }

        public string History { get; }

        public MMEPossibleChannels.MMEChannelTypes RecordType { get; } = MMEPossibleChannels.MMEChannelTypes.ISO13499_106;
        public MMEPositions(string sGuid, string position, string textL1, string textL2, long version,
            DateTime date, string remarks, bool expired, string sortKey, DateTime lastChange, string lastChangeText,
            string history, MMEPossibleChannels.MMEChannelTypes type)
        {
            RecordType = type;
            S_GUID = sGuid;
            Position = position;
            Text_L1 = textL1;
            Text_L2 = textL2;
            Version = version;
            Date = date;
            Remarks = remarks;
            Expired = expired;
            SortKey = sortKey;
            Last_Change = lastChange;
            Last_Change_Text = lastChangeText;
            History = history;
        }
        public static void DeletePositions()
        {
            try
            {
                using (var cmd = DbOperations.GetSQLCommand(true))
                {
                    try
                    {
                        cmd.CommandType = CommandType.StoredProcedure;
                        cmd.CommandText = DbOperationsEnum.StoredProcedure.sp_MMEPositionsDelete.ToString();
                        cmd.Parameters.Add(new SqlParameter("@s_GUID", SqlDbType.UniqueIdentifier) { Value = null });
                        var errorNumberParam =
                            new SqlParameter("@errorNumber", SqlDbType.Int) { Direction = ParameterDirection.Output };
                        cmd.Parameters.Add(errorNumberParam);
                        var errorMessageParam =
                            new SqlParameter("@errorMessage", SqlDbType.NVarChar, 250)
                            {
                                Direction = ParameterDirection.Output
                            };
                        cmd.Parameters.Add(errorMessageParam);

                        cmd.ExecuteNonQuery();
                        if (int.Parse(errorNumberParam.Value.ToString()) != 0)
                        {
                            //errorMessageParam.Value
                        }
                    }
                    finally
                    {
                        cmd.Connection.Dispose();
                    }
                }
            }
            catch (Exception) { /*APILogger.Log("failed to delete positions, ", ex);*/ }
        }
        public static MMEPositions[] GetPositions()
        {
            var positions = new List<MMEPositions>();

            using (var cmd = DbOperations.GetSQLCommand(true))
            {
                try
                {
                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.CommandText = DbOperationsEnum.StoredProcedure.sp_MMEPositionsGet.ToString();
                    cmd.Parameters.Add(new SqlParameter("@s_GUID", SqlDbType.NVarChar) { Value = null });
                    using (var ds = DbOperations.Connection.QueryDataSet(cmd))
                    {
                        if (ds.Tables.Count <= 0 || ds.Tables[0].Rows.Count <= 0) return positions.ToArray();
                        try
                        {
                            positions.AddRange(from DataRow dr in ds.Tables[0].Rows
                                               let date = Convert.ToDateTime(
                                                   dr[DbOperations.MMETables.MMEPositionsFields.DATE.ToString()])
                                               let expired =
                                                   Convert.ToBoolean(dr[DbOperations.MMETables.MMEPositionsFields.EXPIRED.ToString()])
                                               let history =
                                                   Convert.ToString(dr[DbOperations.MMETables.MMEPositionsFields.HISTORY.ToString()])
                                               let lastChange =
                                                   Convert.ToDateTime(
                                                       dr[DbOperations.MMETables.MMEPositionsFields.LAST_CHANGE.ToString()])
                                               let lastChangeText =
                                                   Convert.ToString(
                                                       dr[DbOperations.MMETables.MMEPositionsFields.LAST_CHANGE_TEXT.ToString()])
                                               let position =
                                                   Convert.ToString(dr[DbOperations.MMETables.MMEPositionsFields.POSITION.ToString()])
                                               let remarks =
                                                   Convert.ToString(dr[DbOperations.MMETables.MMEPositionsFields.REMARKS.ToString()])
                                               let sGuid = Convert.ToString(
                                                   dr[DbOperations.MMETables.MMEPositionsFields.s_GUID.ToString()])
                                               let sortKey =
                                                   Convert.ToString(dr[DbOperations.MMETables.MMEPositionsFields.SORTKEY.ToString()])
                                               let text1 = Convert.ToString(
                                                   dr[DbOperations.MMETables.MMEPositionsFields.TEXT_L1.ToString()])
                                               let text2 = Convert.ToString(
                                                   dr[DbOperations.MMETables.MMEPositionsFields.TEXT_L2.ToString()])
                                               let version =
                                                   Convert.ToInt32(dr[DbOperations.MMETables.MMEPositionsFields.VERSION.ToString()])
                                               select new MMEPositions(sGuid, position, text1, text2, Convert.ToInt64(version), date,
                                                   remarks, expired, sortKey, lastChange, lastChangeText, history,
                                                   MMEPossibleChannels.MMEChannelTypes.ISO13499_106));
                        }
                        catch (Exception)
                        {
                            //APILogger.Log("Failed to get positions", ex);
                        }
                    }
                }
                finally
                {
                    cmd.Connection.Dispose();
                }
            }

            using (var cmd = DbOperations.GetSQLCommand(true))
            {
                try
                {
                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.CommandText = DbOperationsEnum.StoredProcedure.sp_MMEPositionsGetCustom.ToString();
                    cmd.Parameters.Add(new SqlParameter("@s_GUID", SqlDbType.NVarChar) { Value = null });
                    using (var ds = DbOperations.Connection.QueryDataSet(cmd))
                    {
                        if (ds.Tables.Count <= 0 || ds.Tables[0].Rows.Count <= 0) return positions.ToArray();
                        try
                        {
                            positions.AddRange(from DataRow dr in ds.Tables[0].Rows
                                               let date = Convert.ToDateTime(
                                                   dr[DbOperations.MMETables.MMEPositionsFields.DATE.ToString()])
                                               let expired =
                                                   Convert.ToBoolean(dr[DbOperations.MMETables.MMEPositionsFields.EXPIRED.ToString()])
                                               let history =
                                                   Convert.ToString(dr[DbOperations.MMETables.MMEPositionsFields.HISTORY.ToString()])
                                               let lastChange =
                                                   Convert.ToDateTime(
                                                       dr[DbOperations.MMETables.MMEPositionsFields.LAST_CHANGE.ToString()])
                                               let lastChangeText =
                                                   Convert.ToString(
                                                       dr[DbOperations.MMETables.MMEPositionsFields.LAST_CHANGE_TEXT.ToString()])
                                               let position =
                                                   Convert.ToString(dr[DbOperations.MMETables.MMEPositionsFields.POSITION.ToString()])
                                               let remarks =
                                                   Convert.ToString(dr[DbOperations.MMETables.MMEPositionsFields.REMARKS.ToString()])
                                               let sGuid = Convert.ToString(
                                                   dr[DbOperations.MMETables.MMEPositionsFields.s_GUID.ToString()])
                                               let sortKey =
                                                   Convert.ToString(dr[DbOperations.MMETables.MMEPositionsFields.SORTKEY.ToString()])
                                               let text1 = Convert.ToString(
                                                   dr[DbOperations.MMETables.MMEPositionsFields.TEXT_L1.ToString()])
                                               let text2 = Convert.ToString(
                                                   dr[DbOperations.MMETables.MMEPositionsFields.TEXT_L2.ToString()])
                                               let version =
                                                   Convert.ToInt32(dr[DbOperations.MMETables.MMEPositionsFields.VERSION.ToString()])
                                               select new MMEPositions(sGuid, position, text1, text2, Convert.ToInt64(version), date,
                                                   remarks, expired, sortKey, lastChange, lastChangeText, history,
                                                   MMEPossibleChannels.MMEChannelTypes.SQL));
                        }
                        catch (Exception)
                        {
                            //APILogger.Log("Failed to get custom positions", ex);
                        }
                    }
                }
                finally
                {
                    cmd.Connection.Dispose();
                }
            }

            return positions.ToArray();
        }
    }
}