using BrightIdeasSoftware;
using DatenDB;
using Deckungsbeitrag.UserControls;
using Npgsql;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Deckungsbeitrag.AA_Klassen
{
  internal class ArtikelNachwaesche
  {
    //                                      0           1         2         3          4          5
    private static string COLUMNS = "nw_artikel_id, artikel_id, datum, nachwaesche, nw_muell, nw_sauber";
    private static string TABLE = "kundenverwaltung.nw_artikel";

    #region Class-Standarts (Properties, Save, reader)
    public ArtikelNachwaesche() { }

    [OLVColumn(IsVisible = false)]
    public int? NachwaescheID { get; set; }
    [OLVColumn(IsVisible = false)]
    public int? ArtikelID { get; set; }
    [OLVColumn(IsVisible = false)]
    public DateTime Datum { get; set; }
    [OLVColumn(IsVisible = false)]
    public int Nachwaesche { get; set; }
    [OLVColumn("Müll", DisplayIndex = 3)]
    public int Muell { get; set; }
    [OLVColumn("Sauber", DisplayIndex = 2)]
    public int Sauber { get; set; }

    public int? Save()
    {
      int? result = 0;
      DatenbankConnection.GetConnection().Open();

      using (NpgsqlCommand command = new NpgsqlCommand())
      {
        command.Connection = DatenbankConnection.GetConnection();

        if (this.NachwaescheID.HasValue & this.NachwaescheID != 0)
        {
          command.CommandText = $"update {TABLE} set artikel_id = :p1, datum = :p2, nachwaesche = :p3, nw_muell = :p4, nw_sauber = :p5 WHERE nw_artikel_id = :p0";
        }
        else
        {
          command.CommandText = "select nextval('kundenverwaltung.tour_seq')";
          this.NachwaescheID = (int)(long)command.ExecuteScalar();
          command.CommandText = $"insert into {TABLE} ({COLUMNS}) values (:p0, :p1, :p2, :p3, :p4, :p5)";
        }

        command.Parameters.AddWithValue("p0", this.NachwaescheID);
        command.Parameters.AddWithValue("p1", this.ArtikelID);
        command.Parameters.AddWithValue("p2", this.Datum);
        command.Parameters.AddWithValue("p3", this.Nachwaesche);
        command.Parameters.AddWithValue("p4", this.Muell);
        command.Parameters.AddWithValue("p5", this.Sauber);


        result = command.ExecuteNonQuery();
        DatenbankConnection.GetConnection().Close();
        return result;
      }
    }


    public ArtikelNachwaesche(NpgsqlDataReader reader)
    {
      this.NachwaescheID = reader.GetInt32(0);
      this.ArtikelID = reader.GetInt32(1);
      this.Datum = reader.GetDateTime(2);
      this.Nachwaesche = reader.IsDBNull(3) ? 0 : reader.GetInt32(3);
      this.Muell = reader.IsDBNull(4) ? 0 : reader.GetInt32(4);
      this.Sauber = reader.IsDBNull(5) ? 0 : reader.GetInt32(5);
    }

    #endregion

    #region Konstruktors
    internal static ArtikelNachwaesche FindeDatensatz(int? artikelID, DateTime timestamp)
    {
      ArtikelNachwaesche result = new ArtikelNachwaesche();
      DatenbankConnection.GetConnection().Open();
      NpgsqlCommand command = new NpgsqlCommand();

      command.Connection = DatenbankConnection.GetConnection();
      command.CommandText = $"select {COLUMNS} from {TABLE} where artikel_id = {artikelID} and datum = '{timestamp}'";
      NpgsqlDataReader reader = command.ExecuteReader();
      while (reader.Read()) result = new ArtikelNachwaesche(reader);
      reader.Close();
      DatenbankConnection.GetConnection().Close();

      return result;
    }

    #endregion

  }
}