// Copyright (c) 2020-present schick Informatik
// Description:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace bsmd.database
{

    /// <summary>
    /// Extra balcony: Data stored in Maersk Excel sheets must be stored to be exported
    /// at a later date. In order to do that (and to be a little more flexible in the future)
    /// we use a generic storage class called "XtraData" that hopefully might be useful in another
    /// future scenario as well
    /// </summary>
    public class MaerskData : DatabaseEntityAsync, IEquatable<MaerskData>, IComparable<MaerskData>
    {

        #region Construction
        public MaerskData()
        {
            this.tablename = "[dbo].[XtraData]";
        }

        #endregion

        #region Enums

        public enum MDStatus
        {
            [Description("No id and is in the future")]
            NO_ID,
            [Description("Updated")]
            UPDATED,
            [Description("Requesting id")]
            REQUESTING_ID,
            [Description("Id assigned")]
            ID_ASSIGNED,
            [Description("upcoming without an id")]
            NO_ID_AND_DUE,
            [Description("Has id and is in the future")]
            ID,
            [Description("In the past, id or not")]
            DONE,
            [Description("no ETA found on data record")]
            NO_ETA,
            [Description("VISIT-ID was cancelled")]
            CANCELLED

        }

        #endregion

        #region Properties

        /// <summary>
        /// reference id as set in the database
        /// </summary>
        public Guid MessageCoreId { get; set; }

        /// <summary>
        /// Core instance reference once matched / set
        /// </summary>
        public MessageCore Core { get; set; }

        public MDStatus Status { get; set; }

        public DateTime? ETA { get; set; }

        public string ColA { get; set; }
        
        public string ColB { get; set; }
        /// <summary>
        /// Shipping area?
        /// </summary>
        public string ColC { get; set; }

        public string ColD { get; set; }
        /// <summary>
        /// Vessel name
        /// </summary>
        public string ColE { get; set; }
        /// <summary>
        /// IMO
        /// </summary>
        public string ColF { get; set; }
        /// <summary>
        /// Voyage-No incoming
        /// </summary>
        public string ColG { get; set; }
        /// <summary>
        /// Voyage-No outgoing
        /// </summary>
        public string ColH { get; set; }
        /// <summary>
        /// Terminal
        /// </summary>
        public string ColI { get; set; }
        /// <summary>
        /// Operator
        /// </summary>
        public string ColJ { get; set; }
        /// <summary>
        /// ETA
        /// </summary>
        public string ColK { get; set; }
        /// <summary>
        /// ETD
        /// </summary>
        public string ColL { get; set; }
        /// <summary>
        /// Visit-Id
        /// </summary>
        public string ColM { get; set; }

        [MaxLength(100)]
        public string Remark { get; set; }

        #endregion

        #region abstract DatabaseEntityAsync method implementation

        public override List<DatabaseEntity> LoadList(IDataReader reader)
        {
            List<DatabaseEntity> result = new List<DatabaseEntity>();
            if (reader != null)
            {
                while (reader.Read())
                {
                    result.Add(ReadRowFromReader(reader));
                }
                reader.Close();
            }
            return result;
        }        

        protected override DatabaseEntityAsync ReadRowFromReader(IDataReader reader)
        {
            MaerskData md = null;
            if (reader != null)
            {
                md = new MaerskData();

                md.id = reader.GetGuid(0);
                if (!reader.IsDBNull(1)) md.MessageCoreId = reader.GetGuid(1);
                if (!reader.IsDBNull(2)) md.ColA = reader.GetString(2);
                if (!reader.IsDBNull(3)) md.ColB = reader.GetString(3);
                if (!reader.IsDBNull(4)) md.ColC = reader.GetString(4);
                if (!reader.IsDBNull(5)) md.ColD = reader.GetString(5);
                if (!reader.IsDBNull(6)) md.ColE = reader.GetString(6);
                if (!reader.IsDBNull(7)) md.ColF = reader.GetString(7);
                if (!reader.IsDBNull(8)) md.ColG = reader.GetString(8);
                if (!reader.IsDBNull(9)) md.ColH = reader.GetString(9);
                if (!reader.IsDBNull(10)) md.ColI = reader.GetString(10);
                if (!reader.IsDBNull(11)) md.ColJ = reader.GetString(11);
                if (!reader.IsDBNull(12)) md.ColK = reader.GetString(12);
                if (!reader.IsDBNull(13)) md.ColL = reader.GetString(13);
                if (!reader.IsDBNull(14)) md.ColM = reader.GetString(14);
                if (!reader.IsDBNull(15)) md.Remark = reader.GetString(15);

                // try parsing the column to datetime
                if (DateTime.TryParse(md.ColA, out DateTime eta))
                    md.ETA = eta;
            }
            return md;
        }

        public override void PrepareLoadCommand(IDbCommand cmd, Message.LoadFilter filter, params object[] criteria)
        {
            string query = string.Format("SELECT Id, ReferenceId, Field1, Field2, Field3, Field4, Field5, Field6, Field7, Field8, Field9, Field10, Field11, Field12 , Field13, Field14 FROM {0} ", this.Tablename);

            switch (filter)
            {
                case Message.LoadFilter.BY_ID:
                    query += " WHERE Id = @ID";
                    ((SqlCommand)cmd).Parameters.AddWithValue("@ID", criteria[0]);
                    break;
                case Message.LoadFilter.BY_CORE:
                    query += " WHERE ReferenceId = @ID";
                    ((SqlCommand)cmd).Parameters.AddWithValue("@ID", criteria[0]);
                    break;
                default:
                    break;
            }

            cmd.CommandText = query;
        }

        public override void PrepareSave(IDbCommand cmd)
        {
            SqlCommand scmd = cmd as SqlCommand;

            scmd.Parameters.AddWithNullableValue("@REF", this.MessageCoreId);
            scmd.Parameters.AddWithNullableValue("@COLA", this.ColA);
            scmd.Parameters.AddWithNullableValue("@COLB", this.ColB);
            scmd.Parameters.AddWithNullableValue("@COLC", this.ColC);
            scmd.Parameters.AddWithNullableValue("@COLD", this.ColD);
            scmd.Parameters.AddWithNullableValue("@COLE", this.ColE);
            scmd.Parameters.AddWithNullableValue("@COLF", this.ColF);
            scmd.Parameters.AddWithNullableValue("@COLG", this.ColG);
            scmd.Parameters.AddWithNullableValue("@COLH", this.ColH);
            scmd.Parameters.AddWithNullableValue("@COLI", this.ColI);
            scmd.Parameters.AddWithNullableValue("@COLJ", this.ColJ);
            scmd.Parameters.AddWithNullableValue("@COLK", this.ColK);
            scmd.Parameters.AddWithNullableValue("@COLL", this.ColL);
            scmd.Parameters.AddWithNullableValue("@COLM", this.ColM);
            scmd.Parameters.AddWithNullableValue("@REMARK", this.Remark);

            if (this.IsNew)
            {
                this.CreateId();
                scmd.Parameters.AddWithValue("@ID", this.Id);
                scmd.CommandText = string.Format("INSERT INTO {0} (Id, ReferenceId, Field1, Field2, Field3, Field4, Field5, Field6, Field7, Field8, Field9, Field10, Field11, Field12, Field13, Field14) " +
                    "VALUES (@ID, @REF, @COLA, @COLB, @COLC, @COLD, @COLE, @COLF, @COLG, @COLH, @COLI, @COLJ, @COLK, @COLL, @COLM, @REMARK)", this.Tablename);
            }
            else
            {
                scmd.Parameters.AddWithValue("@ID", this.Id);
                scmd.CommandText = string.Format("UPDATE {0} SET Field1 = @COLA, Field2 = @COLB, Field3 = @COLC, Field4 = @COLD, Field5 = @COLE, Field6 = @COLF, Field7 = @COLG, Field8 = @COLH, " +
                    "Field9 = @COLI, Field10 = @COLJ, Field11 = @COLK, Field12 = @COLL, Field13 = @COLM, Field14 = @Remark WHERE Id = @ID", this.Tablename);
            }
        }

        /// <summary>
        /// Equality means if IMO and Voyage no. In/Out are the same
        /// </summary>
        public bool Equals(MaerskData other)
        {
            if (other == null) return false;
            if (this.ColG == null) return other.ColG == null;
            if (this.ColH == null) return other.ColH == null;
            if (this.ColF == null) return other.ColF == null;
            return this.ColF.Equals(other.ColF) && this.ColG.Equals(other.ColG) && this.ColH.Equals(other.ColH);
        }

        /// <summary>
        /// Sort-Order is by ETA
        /// </summary>
        public int CompareTo(MaerskData other)
        {
            if (this.ETA == null) return 0;
            if ((other == null) || (other.ETA == null)) return 0;
            return this.ETA.Value.CompareTo(other.ETA.Value);
        }

        public bool Update(MaerskData md)
        {
            bool result = false;
            if (!md.ColA.IsNullOrEmpty() && !md.ColA.Equals(ColA)) { ColA = md.ColA; result = true; }
            if (!md.ColB.IsNullOrEmpty() && !md.ColB.Equals(ColB)) { ColB = md.ColB; result = true; }
            if (!md.ColC.IsNullOrEmpty() && !md.ColC.Equals(ColC)) { ColC = md.ColC; result = true; }
            if (!md.ColD.IsNullOrEmpty() && !md.ColD.Equals(ColD)) { ColD = md.ColD; result = true; }
            if (!md.ColE.IsNullOrEmpty() && !md.ColE.Equals(ColE)) { ColE = md.ColE; result = true; }
            if (!md.ColI.IsNullOrEmpty() && !md.ColI.Equals(ColI)) { ColI = md.ColI; result = true; }
            if (!md.ColJ.IsNullOrEmpty() && !md.ColJ.Equals(ColJ)) { ColJ = md.ColJ; result = true; }
            if (!md.ColK.IsNullOrEmpty() && !md.ColK.Equals(ColK)) { ColK = md.ColK; result = true; }
            if (!md.ColL.IsNullOrEmpty() && !md.ColL.Equals(ColL)) { ColL = md.ColL; result = true; }
            if (!md.ColM.IsNullOrEmpty() && !md.ColM.Equals(ColM)) { ColM = md.ColM; result = true; }
            return result;
        }

        #endregion

    }
}