/// <summary>
/// Automaticly re-sell to the maximum number of Multicoins
/// to childs who made reservations.
/// </summary>
public static void re_sell(User _me)
{
if (_me.ReceivedCalls > 0)
{
using (SmartTreeEntities db = new SmartTreeEntities())
{
_me = db.Users.Find(_me.UserId);
while (_me.MultiCoins != 0 && _me.ReceivedCalls != 0)
{
foreach (User child in _me.Childs.Where(u => u.EmitedCalls > 0).ToList())
{
var amounth = Math.Min(child.EmitedCalls, _me.MultiCoins);
if (!buy(child, child.Father, amounth))
break;
_me.MultiCoins -= amounth;
}
_me = db.Users.Find(_me.UserId);
}
}
}
}
/// <summary>
/// Update the Balance after a sell
/// for an untaxed sell, user takes 100%
/// for a taxed sell, user takes 50%
/// and give the rest to his father.
/// </summary>
/// <param name="amounth"></param>
private static void sell(User Seller, int amounth)
{
var untaxedPart = Math.Min(Seller.untaxed, amounth);
var taxedPart = amounth - untaxedPart;
Seller.untaxed -= untaxedPart;
Seller.Balance += Constants.MULTI_COIN_PRICE * untaxedPart;
Seller.Balance += Constants.MULTI_COIN_PRICE * (double)taxedPart / 2;
give(Seller.Father, Constants.MULTI_COIN_PRICE * (double)taxedPart / 2);
}
/// <summary>
/// Call the father
/// </summary>
/// <param name="amounth"></param>
/// <returns></returns>
private static Boolean call(User _me, int amounth = 1)
{
//Check if the user has enough money to call
if (_me.Balance - _me.ReservedPartOfBalance >= Constants.MULTI_COIN_PRICE * amounth)
{
// if the amounth is 0 or less, do nothing and return true
if (amounth > 0)
{
//check if the father has some Multicoins to sell before calling him
if (_me.Father.MultiCoins != 0)
{
// buy the available multicoins.
var amounthBuy = Math.Min(_me.Father.MultiCoins, amounth);
if (buy(_me, _me.Father, amounthBuy))
{
// Call for the difference
return call(_me, amounth - amounthBuy);
}
// If buy failed recall call function
return call(_me, amounth);
}
// If there is no available multicoins, proceed call
using (SmartTreeEntities db = new SmartTreeEntities())
{
var user = db.Users.Find(_me.UserId);
var father = db.Users.Find(_me.FatherId);
user.EmitedCalls += amounth;
user.ReservedPartOfBalance += Constants.MULTI_COIN_PRICE * amounth;
father.ReceivedCalls += amounth;
try{ db.SaveChanges(); }
catch (DbUpdateConcurrencyException e) { return call(_me, amounth); }
}
}
return true;
}
return false;
}
/// <summary>
/// Reception of taxes on a taxed sell
/// Split the money in Rank + 1 parts
/// takes his part and give the rest to his father
/// (Recurvise)
/// </summary>
/// <param name="balance"></param>
private static void give(User Father, double balance)
{
if (Father.Rank == 0)
Father.Balance += balance;
else
{
double my_part = (double)(balance / (Father.Rank + 1));
Father.Balance += my_part;
give(Father.Father, balance - my_part);
}
}
/// <summary>
/// Buy to an other user
/// </summary>
/// <param name="_other"> The other User we want to buy to</param>
/// <param name="amounth"> The amounth of multicoins we want to buy</param>
/// <returns></returns>
private static Boolean buy(User _me, User _other, int amounth = 1)
{
// First check if _other is the father of the user or
// if user has no father, an elligible seller
if (_me.Balance >= Constants.MULTI_COIN_PRICE * amounth
&& _other.MultiCoins >= amounth
&& (_me.Father == _other
|| (_me.Father == null && _other.isElligibleSeller())))
{
// Proceed the sell
using (SmartTreeEntities db = new SmartTreeEntities())
{
var other = db.Users.Find(_other.UserId);
var me = db.Users.Find(_me.UserId);
//Update seller infos
other.MultiCoins -= amounth;
sell(other, amounth);
//Update user infos
me.Balance -= Constants.MULTI_COIN_PRICE * amounth;
me.MultiCoins += amounth * 5;
me.untaxed += amounth;
// update infos about calls
var nbCallToCancel = Math.Min(_me.EmitedCalls, amounth);
me.EmitedCalls -= nbCallToCancel;
me.ReservedPartOfBalance -= Constants.MULTI_COIN_PRICE * nbCallToCancel;
other.ReceivedCalls -= nbCallToCancel;
// bind seller & buyer if it is not the case yet
if (me.Father == null)
{
me.Father = other;
other.Childs.Add(me);
me.Rank = other.Rank + 1;
}
try { db.SaveChanges(); }
catch (DbUpdateConcurrencyException e) { return buy(_me, _other, amounth); }
}
re_sell(_me);
return true;
}
return false;
}