/// <summary>
/// Checks whether the cart is eligible for any Promotions
/// </summary>
/// <returns>A bool whether it is eligible</returns>
private bool CheckForPromotionEligibility()
{
var promotions = _promotionEngine.GetPromotions();
// If no promotion has been added, then we check for eligibility
if (!_cart.IsPromotionUsed)
{
foreach (var promotion in promotions)
{
// Create temporary dict to store a promotion like the SKUs
// are stored in the cart.
var tempDict = new Dictionary <SKUEnum, int>();
foreach (var data in promotion.Promotions)
{
tempDict.Add(data.SKU, data.Count);
}
// Check if any promotion has matched
var matchCount = tempDict
.Where(entry => _cart.SKUs.ContainsKey(entry.Key) && _cart.SKUs[entry.Key] % entry.Value == 0)
.ToDictionary(entry => entry.Key, entry => entry.Value);
// If any promotion has matched, we save the promotion type
// and break out of the loop.
if (tempDict.Count == matchCount.Count)
{
_cart.IsPromotionUsed = true;
_cart.ActivePromotion = promotion;
break;
}
}
}
return(_cart.IsPromotionUsed);
}