public ObservableCollection<Drink> MockDrinks()
{
ObservableCollection<Drink> drinks = new ObservableCollection<Drink>();
Drink beer = new Drink()
{
Available = true,
BigDecrease = 0.7,
BigRise = 1.2,
CurrentPrice = 13,
Id = 1,
InitialPrice = 13,
MaximumPrice = 22,
MiniumPrice = 10,
Name = "Bier",
OverrideFactor = 1,
SmallDecrease = 0.9,
SmallRise = 1.1
};
drinks.Add(beer);
Drink water = new Drink()
{
Available = true,
BigDecrease = 0.7,
BigRise = 1.2,
CurrentPrice = 10,
Id = 1,
InitialPrice = 10,
MaximumPrice = 15,
MiniumPrice = 10,
Name = "Water",
OverrideFactor = 1,
SmallDecrease = 0.9,
SmallRise = 1.1
};
drinks.Add(water);
Drink coke = new Drink()
{
Available = true,
BigDecrease = 0.6,
BigRise = 1.1,
CurrentPrice = 12,
Id = 1,
InitialPrice = 12,
MaximumPrice = 20,
MiniumPrice = 10,
Name = "Water",
OverrideFactor = 1,
SmallDecrease = 0.9,
SmallRise = 1.1
};
drinks.Add(coke);
return drinks;
}
private static void CalculateNewPrice(List<ClientDrinkOrder> allOrdersItems, bool predict, Interval currentInterval, Interval previousInterval, Interval nextInterval, int previousAllDrinkCount, int currentAllDrinkCount, int differenceAllDrinks, Drink[] drinksForNextInterval, int i)
{
Drink drink = drinksForNextInterval[i];
int previousDrinkCount = allOrdersItems.Where(x => x.DrinkId == drink.Id && x.IntervalId == previousInterval.Id).Sum(x => x.Count);
int currentDrinkCount = allOrdersItems.Where(x => x.DrinkId == drink.Id && x.IntervalId == currentInterval.Id).Sum(x => x.Count);
//1 in the excel
int differenceDrinkCount = currentDrinkCount - previousDrinkCount;
//3 in the excel
double differenceProcentage = ((double)currentDrinkCount / (double)currentAllDrinkCount)
-
((double)previousDrinkCount / (double)previousAllDrinkCount);
if (differenceDrinkCount >= 0)
{
#region 1A
//the drink has been drank more
if (differenceAllDrinks >= 0)
{
#region 2AA
//more drinks have been drunk in general
if (differenceProcentage > 0)
{
//the drink has been drunk more procentually
drink.PriceFactor = PriceFactor.BigRise;
}
else
{
//the drink has been drunk less procentually
drink.PriceFactor = PriceFactor.BigDecrease;
}
#endregion
}
else
{
#region 2AB
//less drinks have been drunk in general
if (differenceProcentage > 0)
{
//the drink has been drunk more procentually
drink.PriceFactor = PriceFactor.SmallRise;
}
else
{
//the drink has been drunk less procentually
drink.PriceFactor = PriceFactor.SmallDecrease;
}
#endregion
}
#endregion
}
else
{
#region 1B
//the drink has been drank less
if (differenceAllDrinks > 0)
{
#region 2BA
//more drinks have been drunk in general
if (differenceProcentage > 0)
{
//the drink has been drunk more procentually
drink.PriceFactor = PriceFactor.BigDecrease;
}
else
{
//the drink has been drunk less procentually
drink.PriceFactor = PriceFactor.BigRise;
}
#endregion
}
else
{
#region 2BB
//more drinks have been drunk in general
if (differenceProcentage > 0)
{
//the drink has been drunk more procentually
drink.PriceFactor = PriceFactor.SmallDecrease;
}
else
{
//the drink has been drunk less procentually
drink.PriceFactor = PriceFactor.SmallRise;
}
#endregion
}
#endregion
}
//check if we need to use the override factor
if (drink.OverrideFactor != 0 && !predict) drink.PriceFactor = PriceFactor.Override;
Drink nextDrink = nextInterval.Drinks.FirstOrDefault(x => x.Id == drink.Id);
double priceFactor = drink.GetPriceFactorValue();
double priceWithoutRouding = drink.CurrentPrice * priceFactor;
int nextPrice = (int)Math.Round(priceWithoutRouding);
if (nextPrice > nextDrink.MaximumPrice) nextPrice = nextDrink.MaximumPrice;
if (nextPrice < nextDrink.MiniumPrice) nextPrice = nextDrink.MiniumPrice;
nextDrink.CurrentPrice = nextPrice;
if (predict) nextDrink.PriceFactor = drink.PriceFactor;
}
private void InitCommands()
{
PointInCode("DrinkViewModel: InitCommands");
//It shouldn't be posible to remove a drink when the party is busy
RemoveDrinkCommand = new RelayCommand<int>(DeleteDrink, (int id) => { return (!BeursfuifBusy && Drinks.Any(x => x.Id == id)); });
AddNewDrinkCommand = new RelayCommand(delegate() { NewEditDrink = new Drink() { Id = (Drinks != null && Drinks.Any() ? Drinks.Max(x => x.Id) + 1 : 1) }; },
() => { return (!BeursfuifBusy && NewEditDrink == null); });
DownloadImageCommand = new RelayCommand(DownloadImage, () => { return (!string.IsNullOrEmpty(DownloadUrl) && !Downloading); });
CancelCommand = new RelayCommand(ResetValues);
ChooseLocalImageCommand = new RelayCommand(ChooseLocalImage);
SaveDrinkCommand = new RelayCommand(SaveDrink);
AvailableChangedCommand = new RelayCommand<int>(UpdateDrinkAvailability);
}
private void UpdateDrink(Drink changed)
{
Interval currentInterval = _beursfuifData.CurrentInterval;
if (currentInterval != null && currentInterval.Drinks != null)
{
if (currentInterval.Drinks.Any(x => x.Id == changed.Id))
{
Drink currentIntervalDrink = currentInterval.Drinks.FirstOrDefault(x => x.Id == changed.Id);
currentIntervalDrink.UpdateProperties(changed);
}
}
if (_beursfuifData.Intervals != null)
{
int length = _beursfuifData.Intervals.Length;
int index = Array.IndexOf(_beursfuifData.Intervals, currentInterval);
for (int i = index; i < length; i++)
{
Drink drink = _beursfuifData.Intervals[i].Drinks.FirstOrDefault(x => x.Id == changed.Id);
if (drink != null)
{
drink.UpdateProperties(changed);
}
}
}
if (BeursfuifBusy)
{
//send message to clients with the current interval
MessengerInstance.Send<DrinkAvailableMessage>(new DrinkAvailableMessage());
}
}
public void UpdateDrink(Drink drink)
{
if (Drinks == null) return;
Drink dr = Drinks.FirstOrDefault(x => x.Id == drink.Id);
if (dr != null)
{
int index = Array.IndexOf(Drinks, dr);
Drinks[index] = drink;
}
}
//Because c# is always byRef on objects, that's why
private void FillInDrinks(Interval interval, Drink[] drinks)
{
PointInCode("SettingsViewModel: FillInDrinks");
int length = drinks.Length;
interval.Drinks = new Drink[length];
for (int i = 0; i < length; i++)
{
interval.Drinks[i] = drinks[i].Clone();
}
}
public void RemoveDrink(Drink drink)
{
if (Drinks == null) return;
List<Drink> currentDrinks = Drinks.ToList();
currentDrinks.Remove(currentDrinks.FirstOrDefault(x => x.Id == drink.Id));
Drinks = currentDrinks.ToArray();
}
public Interval Clone()
{
Interval clone = this.MemberwiseClone() as Interval;
int drinkLength = this.Drinks.Length;
Drink[] drinkClones = new Drink[drinkLength];
for (int i = 0; i < drinkLength; i++)
{
drinkClones[i] = this.Drinks[i].Clone();
}
clone.Drinks = drinkClones;
return clone;
}
public void AddDrink(Drink drink)
{
if (Drinks == null)
{
Drinks = new Drink[] { drink };
return;
}
List<Drink> currentDrinks = Drinks.ToList();
currentDrinks.Add(drink);
Drinks = currentDrinks.ToArray();
}
protected bool Equals(Drink other)
{
return _id == other._id && string.Equals(_name, other._name) && _available == other._available && _initialPrice == other._initialPrice && _minimumPrice == other._minimumPrice && _maximumPrice == other._maximumPrice && _currentPrice == other._currentPrice && _bigRise.Equals(other._bigRise) && _smallRise.Equals(other._smallRise) && _bigDecrease.Equals(other._bigDecrease) && _overrideFactor.Equals(other._overrideFactor);
}
/// <summary>
/// Updates properties that are allowed to be changed when the party is started
/// </summary>
/// <param name="changed"></param>
public void UpdateProperties(Drink changed)
{
Name = changed.Name;
Available = changed.Available;
BigDecrease = changed.BigDecrease;
BigRise = changed.BigRise;
SmallDecrease = changed.SmallDecrease;
SmallRise = changed.SmallRise;
MiniumPrice = changed.MiniumPrice;
MaximumPrice = changed.MaximumPrice;
}
