public List <TransactionView> GetTransactions(int blockHeight = 0)
{
var transactionViews = new List <TransactionView>();
var walletAddresses = Addresses.Select(a => a.Key).ToArray();
using (BlockchainDbContext db = new BlockchainDbContext())
{
var transactions = db.Transactions.Include(t => t.Inputs).Include(t => t.Outputs).Where(t => t.BlockHeight > blockHeight && (t.Inputs.Select(i => i.Key).Intersect(walletAddresses).Any() || t.Outputs.Select(i => i.Key).Intersect(walletAddresses).Any())).OrderByDescending(t => t.BlockHeight).ThenByDescending(t => t.Id).Take(10).ToList();
foreach (var transaction in transactions)
{
var isIncome = transaction.Inputs == null ? true : transaction.Inputs.Select(i => i.Key).All(o => !walletAddresses.Contains(o));
transactionViews.Add(new TransactionView()
{
Inputs = transaction.Inputs.Select(i => new IOView()
{
Key = i.Key, Amount = BalanceHelper.GetBalanceOfAddress(i.Key)
}).ToArray(),
Message = transaction.Data == null ? string.Empty : Encoding.Unicode.GetString(transaction.Data),
BlockHeight = transaction.BlockHeight,
Outputs = transaction.Outputs.Select(o => new IOView()
{
Key = o.Key, Amount = o.Amount
}).ToArray(),
Amount = transaction.Inputs == null || transaction.Inputs.Count == 0 ? transaction.Outputs.Select(o => o.Amount).Sum() : isIncome?transaction.Outputs.Select(o => o.Amount).Sum() : -transaction.Outputs.Where(o => !walletAddresses.Contains(o.Key)).Select(o => o.Amount).Sum(),
IsIncome = isIncome
});
}
}
return(transactionViews.OrderBy(t => t.BlockHeight).ToList());
}