using System;
using System.Collections.Generic;
using System.Data;
using System.Data.OleDb;
using System.Data.SqlClient;
using System.Linq;
using System.Xml;
using DTS.Common.Enums.DBExport;
using DTS.Common.Storage;
using DTS.Common.Utilities.Logging;

namespace DTS.Common.ISO
{
    public class MMEDirections : AbstractOLEDbWrapper
    {
        public string S_GUID { get; }

        public string Direction { get; }

        public string Text_L1 { get; }

        public string Text_L2 { get; }

        public DateTime Date { get; }

        public long Version { get; }

        public bool Expired { get; }

        public string Remarks { get; }

        public DateTime Last_Change { get; }

        public string Last_Change_Text { get; }

        public string History { get; }

        public string SortKey { get; }

        public MMEPossibleChannels.MMEChannelTypes RecordType { get; }

        /// <summary>
        /// imports a singular custom direction
        /// </summary>
        /// <param name="node"></param>
        /// <param name="setStatus"></param>
        public static MMEDirections ReadXML(XmlElement node)
        {
            var fields = Enum.GetValues(typeof(CustomDirectionFields)).Cast<CustomDirectionFields>().ToArray();

            string sGuid = "", direction = "", textL1 = "", textL2 = "", remarks = "", lastChangeText = "", history = "", sortkey = "";
            var date = DateTime.Now;
            long version = 0;
            var bExpired = false;
            var lastChange = DateTime.Now;

            foreach (var field in fields)
            {
                switch (field)
                {
                    case CustomDirectionFields.Direction:
                        direction = node.GetAttribute(field.ToString());
                        break;
                    case CustomDirectionFields.Expired:
                        bExpired = Convert.ToBoolean(node.GetAttribute(field.ToString()));
                        break;
                    case CustomDirectionFields.GUID:
                        sGuid = node.GetAttribute(field.ToString());
                        break;
                    case CustomDirectionFields.History:
                        history = node.GetAttribute(field.ToString());
                        break;
                    case CustomDirectionFields.Last_Change:
                        lastChange = DateTime.Parse(node.GetAttribute(field.ToString()), System.Globalization.CultureInfo.InvariantCulture);
                        break;
                    case CustomDirectionFields.Last_Change_Text:
                        lastChangeText = node.GetAttribute(field.ToString());
                        break;
                    case CustomDirectionFields.Remarks:
                        remarks = node.GetAttribute(field.ToString());
                        break;
                    case CustomDirectionFields.SortKey:
                        sortkey = node.GetAttribute(field.ToString());
                        break;
                    case CustomDirectionFields.Text_L1:
                        textL1 = node.GetAttribute(field.ToString());
                        break;
                    case CustomDirectionFields.Text_L2:
                        textL2 = node.GetAttribute(field.ToString());
                        break;
                    case CustomDirectionFields.Version:
                        version = long.Parse(node.GetAttribute(field.ToString()), System.Globalization.CultureInfo.InvariantCulture);
                        break;
                    default:
                        throw new NotSupportedException("ImportTestSetup::ImportCustomDirection unsupported field: " + field.ToString());
                }
            }

            return new MMEDirections(sGuid, direction, textL1, textL2, date, version, bExpired, remarks, lastChange, lastChangeText, history, sortkey, MMEPossibleChannels.MMEChannelTypes.SQL);
        }

        public MMEDirections(string sGuid, string direction, string textL1, string textL2, DateTime date, long version,
            bool bExpired, string remarks, DateTime lastChange, string lastChangeText, string history, string sortkey,
            MMEPossibleChannels.MMEChannelTypes type)
        {
            RecordType = type;
            S_GUID = sGuid;
            Direction = direction;
            Text_L1 = textL1;
            Text_L2 = textL2;
            Date = date;
            Version = version;
            Expired = bExpired;
            Remarks = remarks;
            Last_Change = lastChange;
            Last_Change_Text = lastChangeText;
            History = history;
            SortKey = sortkey;
        }

        public static MMEDirections[] GetDirections()
        {
            var directions = new List<MMEDirections>();

            using (var cmd = DbOperations.GetISOCommand())
            {
                cmd.CommandText = "SELECT * FROM MMEDirections";
                cmd.CommandType = CommandType.Text;
                try
                {
                    using (var ISOReader = cmd.ExecuteReader())
                    {
                        while (ISOReader.Read())
                        {
                            try
                            {
                                var version =
                                    Convert.ToInt32(
                                        ISOReader[DbOperations.MMETables.MMEDirectionsFields.VERSION.ToString()]);
                                var text2 = Convert.ToString(
                                    ISOReader[DbOperations.MMETables.MMEDirectionsFields.TEXT_L2.ToString()]);
                                var text1 = Convert.ToString(
                                    ISOReader[DbOperations.MMETables.MMEDirectionsFields.TEXT_L1.ToString()]);
                                var sortKey =
                                    Convert.ToString(
                                        ISOReader[DbOperations.MMETables.MMEDirectionsFields.SORTKEY.ToString()]);
                                var sGuid = Convert.ToString(
                                    ISOReader[DbOperations.MMETables.MMEDirectionsFields.s_GUID.ToString()]);
                                var remarks =
                                    Convert.ToString(
                                        ISOReader[DbOperations.MMETables.MMEDirectionsFields.REMARKS.ToString()]);
                                var lastChangeText =
                                    Convert.ToString(
                                        ISOReader[
                                            DbOperations.MMETables.MMEDirectionsFields.LAST_CHANGE_TEXT.ToString()]);
                                var lastChange = GetDate(ISOReader,
                                    DbOperations.MMETables.MMEDirectionsFields.LAST_CHANGE.ToString());
                                var history =
                                    Convert.ToString(
                                        ISOReader[DbOperations.MMETables.MMEDirectionsFields.HISTORY.ToString()]);
                                var expired =
                                    Convert.ToBoolean(
                                        ISOReader[DbOperations.MMETables.MMEDirectionsFields.EXPIRED.ToString()]);
                                var direction =
                                    Convert.ToString(
                                        ISOReader[DbOperations.MMETables.MMEDirectionsFields.DIRECTION.ToString()]);
                                var date = Convert.ToDateTime(
                                    ISOReader[DbOperations.MMETables.MMEDirectionsFields.DATE.ToString()]);
                                var mmedirection = new MMEDirections(sGuid, direction, text1, text2, date,
                                    Convert.ToInt64(version), expired, remarks, lastChange, lastChangeText,
                                    history, sortKey, MMEPossibleChannels.MMEChannelTypes.ISO13499_106);
                                directions.Add(mmedirection);
                            }
                            catch (Exception ex)
                            {
                                APILogger.Log("failed to load direction", ex);
                            }
                        }

                        ISOReader.Close();
                    }
                }
                finally
                {
                    cmd.Connection.Dispose();
                }
            }
            return directions.ToArray();
        }

        public void Commit()
        {
            using (var cmd = DbOperations.GetSQLCommand(true))
            {
                try
                {
                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.CommandText = DbOperationsEnum.StoredProcedure.sp_MMEDirectionsUpdateInsert.ToString();

                    #region params

                    cmd.Parameters.Add(
                        new SqlParameter("@s_GUID", SqlDbType.UniqueIdentifier) { Value = Guid.Parse(S_GUID) });
                    cmd.Parameters.Add(new SqlParameter("@DIRECTION", SqlDbType.NVarChar, 50) { Value = Direction });
                    cmd.Parameters.Add(new SqlParameter("@TEXT_L1", SqlDbType.NVarChar, 255) { Value = Text_L1 });
                    cmd.Parameters.Add(new SqlParameter("@TEXT_L2", SqlDbType.NVarChar, 255) { Value = Text_L2 });
                    cmd.Parameters.Add(new SqlParameter("@DATE", SqlDbType.DateTime) { Value = Date });
                    cmd.Parameters.Add(new SqlParameter("@VERSION", SqlDbType.Int) { Value = Version });
                    cmd.Parameters.Add(new SqlParameter("@EXPIRED", SqlDbType.Bit) { Value = Expired });
                    cmd.Parameters.Add(new SqlParameter("@REMARKS", SqlDbType.NVarChar) { Value = Remarks });
                    cmd.Parameters.Add(new SqlParameter("@LAST_CHANGE", SqlDbType.DateTime) { Value = Last_Change });
                    cmd.Parameters.Add(
                        new SqlParameter("@LAST_CHANGE_TEXT", SqlDbType.NVarChar, 255) { Value = Last_Change_Text });
                    cmd.Parameters.Add(new SqlParameter("@HISTORY", SqlDbType.NVarChar) { Value = History });
                    cmd.Parameters.Add(new SqlParameter("@SORTKEY", SqlDbType.NVarChar, 50) { Value = SortKey });
                    var newIdParam = new SqlParameter("@new_id", SqlDbType.Int) { Direction = ParameterDirection.Output };
                    cmd.Parameters.Add(newIdParam);
                    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);

                    #endregion params

                    cmd.ExecuteNonQuery();
                    if (int.Parse(errorNumberParam.Value.ToString()) != 0)
                    {
                        //errorMessageParam.Value
                    }
                }
                finally
                {
                    cmd.Connection.Dispose();
                }
            }
        }
    }
}