public async Task <Event> CreateEvent(
Account account,
AccountSet arbiterAccountSet,
AccountSet participantsAccountSet,
EventCondition eventCondition,
EventRelationType eventRelationType,
EventBetCondition eventBetCondition,
string title,
DateTime startDate,
DateTime endDate)
{
using (this._scopeableFactory.Create())
{
var @event = new Event
{
AccountId = account.Id,
Title = title,
StartDate = startDate == default(DateTime) ? DateTime.Now : startDate,
EndDate = endDate,
EventRelationTypeId = eventRelationType.Id,
ArbiterAccountSetId = arbiterAccountSet.GetIdentifier(),
ParticipantsAccountSetId = participantsAccountSet.GetIdentifier(),
ExpectedEventConditionId = eventCondition.Id,
EventBetConditionId = eventBetCondition.Id
};
await this._repositoryEvent.Add(@event);
return(@event);
}
}
public async Task <Bet> CreateBet(Account account, Event @event, OutcomesType outcomesType, decimal value)
{
using (this._scopeableFactory.Create())
{
EventBetCondition conditions = await this._repositoryEventBetCondition.Get(@event.EventBetConditionId);
CurrencyType currencyType = await this._repositoryCurrencyType.Get(conditions.CurrencyTypeId);
await Checks(@event, account, outcomesType, conditions, currencyType);
if (currencyType.Name == CurrencyType.Reputation)
{
value = 1;
}
var bet = new Bet
{
AccountId = account.Id,
CreationDate = DateTime.Now,
OutcomesTypeId = outcomesType.Id,
EventId = @event.Id,
CurrencyTypeId = conditions.CurrencyTypeId,
Value = value
};
await this._repositoryBet.Add(bet);
return(bet);
}
}
public async Task <EventBetCondition> CreateEventBetCondition(Account account, CurrencyType currencyType, BetRateAlgorithm betRateAlgorithm, DateTime closeDate)
{
using (this._scopeableFactory.Create())
{
var eventBetCondition = new EventBetCondition
{
AccountId = account.Id,
CloseDate = closeDate,
CurrencyTypeId = currencyType.Id,
EventBetRateAlgorithmId = betRateAlgorithm.Id,
};
await this._repositoryEventBetCondition.Add(eventBetCondition);
return(eventBetCondition);
}
}
public async Task <BetRate> CalculateBetRate(Account account, Event @event, OutcomesType outcomesType, decimal value)
{
using (var scope = this._scopeableFactory.Create())
{
EventBetCondition conditions = await this._repositoryEventBetCondition.Get(@event.EventBetConditionId);
CurrencyType currencyType = await this._repositoryCurrencyType.Get(conditions.CurrencyTypeId);
try
{
await Checks(@event, account, outcomesType, conditions, currencyType);
}
catch { return(null); }
Guid eventId = @event.Id;
var bets = await this._repositoryBet.GetFiltered(b => b.EventId == eventId);
var algorithm = await this._repositoryBetRateAlgorithm.Get(conditions.EventBetRateAlgorithmId);
DateTime date = DateTime.Now;
ICalculator <double, DateTime> calculator = await GetBetRateCalculator(algorithm, @event);
IEnumerable <Bet> samebets = bets.Where(b => b.OutcomesTypeId == outcomesType.Id);
IEnumerable <Bet> differentbets = bets.Where(b => b.OutcomesTypeId != outcomesType.Id);
decimal betRate = GetRate(value, calculator, date);
decimal totalBetRate = samebets.Sum(b => GetRate(b.Value, calculator, b.CreationDate));
decimal differentbetssum = differentbets.Sum(b => b.Value);
decimal winRate = betRate / (totalBetRate + betRate);
decimal winValue = differentbetssum * winRate;
return(new BetRate {
CreationDate = date, Rate = betRate, WinRate = winRate, WinValue = winValue
});
}
}
private async Task Checks(Event @event, Account account, OutcomesType targetOutcomesType, EventBetCondition conditions, CurrencyType currencyType)
{
var ownerAccountId = @event.AccountId;
if (conditions.CloseDate < DateTime.Now)
{
throw new InvalidOperationException("bet alrady closed");
}
var accountSetId = @event.ArbiterAccountSetId;
IEnumerable <AccountSetAccounts> arbiterAccounts =
await this._repositoryAccountSetAccounts.GetFiltered(a => a.AccountSetId == accountSetId);
if (arbiterAccounts.Any(a => a.AccountId == account.Id))
{
throw new InvalidOperationException("you are arbiter of this bet");
}
if (@event.ParticipantsAccountSetId != default(Guid))
{
accountSetId = @event.ParticipantsAccountSetId;
IEnumerable <AccountSetAccounts> participantsAccounts =
await this._repositoryAccountSetAccounts.GetFiltered(a => a.AccountSetId == accountSetId);
if (!participantsAccounts.Any(setitem => setitem.AccountId == account.Id) && account.Id != ownerAccountId)
{
throw new InvalidOperationException("Participants account has not you accountId");
}
}
var eventId = @event.Id;
var accountId = account.Id;
EventRelationType relationType = await this._repositoryEventRelationType.Get(@event.EventRelationTypeId);
Bet bet = await this._repositoryBet.GetBy(b => b.EventId == eventId && b.AccountId == accountId);
if (currencyType.Name == CurrencyType.Reputation && bet != null)
{
throw new InvalidOperationException("you already bet you reputation");
}
if (relationType.Name != EventRelationType.MenyVsMeny)
{
eventId = @event.Id;
Bet ownrbet = await this._repositoryBet.GetBy(b => b.EventId == eventId && b.AccountId == ownerAccountId);
if (ownrbet == null)
{
if (ownerAccountId != account.Id)
{
throw new InvalidOperationException("cannot bet before owner in One vs Meny or One vs One relations");
}
}
else
{
if (ownrbet.OutcomesTypeId == targetOutcomesType.Id)
{
throw new InvalidOperationException("cannot bet same as owner in One vs Meny or One vs One relations");
}
}
if (relationType.Name == EventRelationType.OneVsOne)
{
eventId = @event.Id;
IEnumerable <Bet> bets = await this._repositoryBet.GetFiltered(b => b.EventId == eventId);
if (bets.Count() > 1)
{
throw new InvalidOperationException("alrady bet on all outcomes in One vs One relations");
}
}
}
}
