public static string FormatToken(SumusToken token)
{
switch (token)
{
case SumusToken.Gold: return("GOLD");
case SumusToken.Mnt: return("MNT");
default: return("");
}
}
public static bool ParseToken(string s, out SumusToken token)
{
token = SumusToken.Gold;
if (!string.IsNullOrWhiteSpace(s))
{
s = s.ToLower();
if (s == "0" || s == "utility" || s == "mnt" || s == "mint")
{
token = SumusToken.Mnt;
return(true);
}
if (s == "1" || s == "commodity" || s == "gold")
{
token = SumusToken.Gold;
return(true);
}
}
return(false);
}
public static async Task <bool> Refill(IServiceProvider services, long userId, decimal amount, SumusToken token)
{
if (amount <= 0)
{
return(false);
}
var logger = services.GetLoggerFor(typeof(SumusWallet));
var dbContext = services.GetRequiredService <ApplicationDbContext>();
var field = "";
switch (token)
{
case SumusToken.Gold: field = "balance_gold"; break;
case SumusToken.Mnt: field = "balance_mnt"; break;
default: return(false);
}
using (var tx = await dbContext.Database.BeginTransactionAsync()) {
try {
decimal bal = 0;
var conn = dbContext.Database.GetDbConnection();
using (var cmd = conn.CreateCommand()) {
cmd.Transaction = dbContext.Database.CurrentTransaction.GetDbTransaction();
cmd.CommandText = $"SELECT `{field}` FROM `gm_user_sumus_wallet` WHERE `user_id`={userId} FOR UPDATE";
var b = await cmd.ExecuteScalarAsync() as decimal?;
if (b != null)
{
bal = b.Value;
}
else
{
return(false);
}
}
bal += amount;
using (var cmd = conn.CreateCommand()) {
cmd.Transaction = dbContext.Database.CurrentTransaction.GetDbTransaction();
cmd.CommandText = $"UPDATE `gm_user_sumus_wallet` SET `{field}`={bal.ToString(System.Globalization.CultureInfo.InvariantCulture)} WHERE `user_id`={userId}";
await cmd.ExecuteNonQueryAsync();
}
tx.Commit();
return(true);
} catch (Exception e) {
logger.Error(e, $"Failed to refill user #{userId}");
}
}
return(false);
}