public static AssetDirectoryViewModel Create(IEnumerable <IAssetDefinition> assetDefinitions,
IDictionary <string, IAssetCoinholdersIndex> assetCoinholdersIndices,
IDictionary <string, IAssetScore> assetScoresDictionaries,
int take = int.MaxValue)
{
return(new AssetDirectoryViewModel
{
Assets = assetDefinitions.Select(p =>
{
var assetId = p.AssetIds.FirstOrDefault();
IAssetCoinholdersIndex index = null;
if (assetCoinholdersIndices.ContainsKey(assetId))
{
index = assetCoinholdersIndices[assetId];
}
IAssetScore assetScore = null;
if (assetScoresDictionaries.ContainsKey(assetId))
{
assetScore = assetScoresDictionaries[assetId];
}
return Asset.Create(p, index, assetScore);
})
.OrderBy(p => p.Score).ToList().Take(take)
});
}
public static Asset Create(IAssetDefinition source, IAssetCoinholdersIndex index, IAssetScore assetScore)
{
return(new Asset
{
AssetIds = source.AssetIds ?? Enumerable.Empty <string>(),
ContactUrl = source.ContactUrl,
Description = source.Description,
DescriptionMime = source.DescriptionMime,
Divisibility = source.Divisibility,
IconUrl = source.IconUrl,
ImageUrl = source.ImageUrl,
Issuer = source.Issuer,
LinkToWebsite = source.LinkToWebsite,
Name = source.Name,
NameShort = source.NameShort,
Type = source.Type,
Version = source.Version,
IsVerified = source.IsVerified(),
CoinholdersCount = index?.CoinholdersCount,
TotalQuantity = index?.TotalQuantity,
Score = assetScore?.Score ?? 1,
IssuerEncoded = (source.Issuer ?? "").ToBase64(),
IssuerWebSite = source.IssuerWebsite()
});
}
public static double CalculateAssetScore(IAssetDefinition assetDefinition, IAssetCoinholdersIndex index,
IEnumerable <IAssetCoinholdersIndex> allIndexes)
{
var assetCoinholdersIndices = allIndexes as IAssetCoinholdersIndex[] ?? allIndexes.ToArray();
var isVerified = (assetDefinition?.IsVerified() ?? false) ? 0 : 1;
var lastMonthTxCoubtCoef = Calc(index.LastMonthTransactionCount, assetCoinholdersIndices.Select(p => p.LastMonthTransactionCount));
var totalTransactionsCountCoef = Calc(index.TransactionsCount, assetCoinholdersIndices.Select(p => p.TransactionsCount));
var coinholdersCountCoef = Calc(index.CoinholdersCount, assetCoinholdersIndices.Select(p => p.CoinholdersCount));
var totalQuantityCoef = Calc(index.TotalQuantity, assetCoinholdersIndices.Select(p => p.TotalQuantity));
var lastTxDaysPastCoef = (index.LastTxDateDaysPast() != null
? Calc(index.LastTxDateDaysPast().Value, assetCoinholdersIndices.Select(p => p.LastTxDateDaysPast() ?? 0), true)
: 1);
var result = Weight(Coef.IsVerified) * isVerified
+ Weight(Coef.LastMonthTxCount) * lastMonthTxCoubtCoef
+ Weight(Coef.TotalTransactionsCount) * totalTransactionsCountCoef
+ Weight(Coef.CoinholdersCount) * coinholdersCountCoef
+ Weight(Coef.TotalQuantity) * totalQuantityCoef
+ Weight(Coef.LastTxDateDaysPast) * lastTxDaysPastCoef
+ Weight(Coef.TopCoinholderShare) * index.TopCoinholderShare
+ Weight(Coef.HerfindalShareIndex) * index.HerfindalShareIndex;
return(Math.Round(result, 6));
}
public static int?LastTxDateDaysPast(this IAssetCoinholdersIndex index)
{
if (index.LastTxDate != null)
{
return((DateTime.Now - index.LastTxDate.Value).Days);
}
return(null);
}
public static AssetCoinholdersIndexEntity Create(IAssetCoinholdersIndex source)
{
return(new AssetCoinholdersIndexEntity
{
AssetIds = source.AssetIds.ToJson(),
RowKey = GenerateRowKey(source.AssetIds),
PartitionKey = GeneratePartitionKey(),
CoinholdersCount = source.CoinholdersCount,
TotalQuantity = source.TotalQuantity,
LastTxDate = source.LastTxDate,
HerfindalShareIndex = source.HerfindalShareIndex,
TransactionsCount = source.TransactionsCount,
TopCoinholderShare = source.TopCoinholderShare,
LastMonthTransactionCount = source.LastMonthTransactionCount
});
}
public async Task InserOrReplaceAsync(IAssetCoinholdersIndex index)
{
await _tableStorage.InsertOrReplaceAsync(AssetCoinholdersIndexEntity.Create(index));
}
