StockItemSellingPriceMaintenanceEvent.cs :  » Persistence-Frameworks » Ubik » StoresAndStockPricing » Model » C# / CSharp Open Source

using System;
using System.Collections.Generic;
using System.Text;
using Ubik.Engine.Client;

namespace StoresAndStockPricing.Model{
  /// <summary>
  /// Scheduled change to a stock item's selling price
  /// </summary>
  public class StockItemSellingPriceMaintenanceEvent : DataMaintenanceEvent
  {
    TrackedReference<StockItem> _stockItem;
    TrackedReference<RetailStoreGroup> _targetRetailStoreGroup;
    TrackedProperty<decimal> _sellingPrice;

    protected StockItemSellingPriceMaintenanceEvent(Session session)
      : base(session)
    {
      CreateProperties();
    }

    public StockItemSellingPriceMaintenanceEvent(
      Session session,
      DateTime plannedDateTime,
      StockItem stockItem,
      RetailStoreGroup targetRetailStoreGroup,
      decimal sellingPrice
    )
      : base(session, plannedDateTime)
    {
      if (stockItem == null)
        throw new ArgumentNullException("stockItem");

      if (targetRetailStoreGroup == null)
        throw new ArgumentNullException("targetRetailStoreGroup");

      StockItemSellingPrice.ValidateSellingPrice(sellingPrice);

      CreateProperties();

      _stockItem.Reset(stockItem);
      _targetRetailStoreGroup.Reset(targetRetailStoreGroup);
      _sellingPrice.Reset(sellingPrice);
    }

    private void CreateProperties()
    {
      _stockItem = new TrackedReference<StockItem>(this, "StockItem");
      _targetRetailStoreGroup = new TrackedReference<RetailStoreGroup>(this, "TargetRetailStoreGroup");
      _sellingPrice = new TrackedProperty<decimal>(this, "SellingPrice");
    }

    public StockItem StockItem
    {
      get
      {
        return _stockItem.Value;
      }
    }

    public RetailStoreGroup TargetRetailStoreGroup
    {
      get
      {
        return _targetRetailStoreGroup.Value;
      }
    }

    public decimal SellingPrice
    {
      get
      {
        return _sellingPrice.Value;
      }
    }

    public override string Description
    {
      get
      {
        return string.Format(StockItemSellingPriceMaintenanceEventResources.Description,
          StockItem.Name, TargetRetailStoreGroup.Name, SellingPrice.ToString());
      }
    }

    protected override void ApplyImpl()
    {
      foreach (RetailStore store in TargetRetailStoreGroup.RetailStores)
      {
        StockItem.ChangeSellingPrice(store, SellingPrice);
      }
    }
  }
}