// Copyright (c) 2015-2017 schick Informatik
// Description:

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

namespace bsmd.database
{
    public class MessageHistory : IDatabaseEntity
    {

        private const string tableName = "[MessageHistory]";

        #region Properties

        public string Tablename { get { return tableName; } }

        public Guid? Id { get; set; }

        public Guid? ReportingPartyId { get; set; }

        public ReportingParty CreatedBy { get; set; }

        public Guid EntityId { get; internal set; }

        public string EntityType { get; internal set; }

        public string EntityName { get; internal set; }

        public string EntityValues { get; internal set; }

        public DateTime Created { get; private set; }

        #endregion

        #region IDatabaseEntity implementation

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

            // es gibt nur insert
            this.Id = Guid.NewGuid();
            scmd.Parameters.AddWithValue("@ID", this.Id);
            scmd.Parameters.AddWithNullableValue("@P1", this.ReportingPartyId);
            scmd.Parameters.AddWithValue("@P2", this.EntityId);
            scmd.Parameters.AddWithValue("@P3", this.EntityType);
            scmd.Parameters.AddWithValue("@P4", this.EntityName);
            scmd.Parameters.AddWithValue("@P5", this.EntityValues);
            scmd.Parameters.AddWithValue("@P6", DateTime.Now);
                
            cmd.CommandText = string.Format("INSERT INTO {0} (Id, ReportingPartyId, EntityId, EntityType, " +
                    "EntityName, EntityValues, Timestamp) VALUES (@ID, @P1, @P2, @P3, @P4, @P5, @P6)", this.Tablename);            
        }

        public void PrepareDelete(IDbCommand cmd)
        {
            SqlCommand scmd = cmd as SqlCommand;
            scmd.CommandText = string.Format("DELETE FROM {0} WHERE Id = @ID", Tablename);
            scmd.Parameters.AddWithValue("@ID", this.Id);
        }

        public List<MessageHistory> LoadList(IDataReader reader)
        {
            List<MessageHistory> result = new List<MessageHistory>();

            while (reader.Read())
            {
                MessageHistory mh = new MessageHistory();
                mh.Id = reader.GetGuid(0);
                if (!reader.IsDBNull(1)) mh.ReportingPartyId = reader.GetGuid(1);
                if (!reader.IsDBNull(2)) mh.EntityId = reader.GetGuid(2);
                if (!reader.IsDBNull(3)) mh.EntityType = reader.GetString(3);
                if (!reader.IsDBNull(4)) mh.EntityName = reader.GetString(4);
                if (!reader.IsDBNull(5)) mh.EntityValues = reader.GetString(5);
                if (!reader.IsDBNull(6)) mh.Created = reader.GetDateTime(6);

                result.Add(mh);
            }
            reader.Close();
            return result;
        }

        List<DatabaseEntity> IDatabaseEntity.LoadList(IDataReader reader)
        {
            throw new NotImplementedException();
        }

        #endregion

    }
}