public async Task GetBalanceAsync(CommandContext ctx,
[Description("User.")] DiscordUser user = null)
{
user = user ?? ctx.User;
long?balance;
using (DatabaseContext db = this.Database.CreateContext()) {
DatabaseBankAccount account = await db.BankAccounts.FindAsync((long)ctx.Guild.Id, (long)user.Id);
balance = account?.Balance;
}
var emb = new DiscordEmbedBuilder {
Title = $"{StaticDiscordEmoji.MoneyBag} Bank account for {user.Username}",
Color = this.ModuleColor,
ThumbnailUrl = user.AvatarUrl
};
if (balance.HasValue)
{
emb.WithDescription($"Account value: {Formatter.Bold(balance.Value.ToWords())} {this.Shared.GetGuildConfig(ctx.Guild.Id).Currency ?? "credits"}");
emb.AddField("Numeric value", $"{balance.Value:n0}");
}
else
{
emb.WithDescription($"No existing account! Use command {Formatter.InlineCode("bank register")} to open an account.");
}
emb.WithFooter("\"Your money is safe in our hands.\" - WM Bank");
await ctx.RespondAsync(embed : emb.Build());
}
public static async Task ModifyBankAccountAsync(this DatabaseContext db, ulong uid, ulong gid, Func <long, long> balanceModifier)
{
bool created = false;
DatabaseBankAccount account = await db.BankAccounts.FindAsync((long)gid, (long)uid);
if (account is null)
{
account = new DatabaseBankAccount {
GuildId = gid,
UserId = uid
};
created = true;
}
account.Balance = balanceModifier(account.Balance);
if (account.Balance < 0)
{
account.Balance = 0;
}
if (created)
{
db.BankAccounts.Add(account);
}
else
{
db.BankAccounts.Update(account);
}
}
public static async Task <bool> TryDecreaseBankAccountAsync(this DatabaseContext db, ulong uid, ulong gid, long amount)
{
DatabaseBankAccount account = await db.BankAccounts.FindAsync((long)gid, (long)uid);
if (account is null || account.Balance < amount)
{
return(false);
}
account.Balance -= amount;
db.BankAccounts.Update(account);
return(true);
}
public async Task GrantAsync(CommandContext ctx,
[Description("User.")] DiscordUser user,
[Description("Amount.")] long amount)
{
if (amount < 0 || amount > 1_000_000_000_000)
{
throw new InvalidCommandUsageException($"Invalid amount! Needs to be in range [1, {1_000_000_000_000:n0}]");
}
using (DatabaseContext db = this.Database.CreateContext()) {
DatabaseBankAccount account = await db.BankAccounts.FindAsync((long)ctx.Guild.Id, (long)user.Id);
if (account is null)
{
throw new CommandFailedException("Given user does not have a WM bank account!");
}
account.Balance += amount;
db.BankAccounts.Update(account);
await db.SaveChangesAsync();
}
await this.InformAsync(ctx, StaticDiscordEmoji.MoneyBag, $"{Formatter.Bold(user.Mention)} won {Formatter.Bold($"{amount:n0}")} {this.Shared.GetGuildConfig(ctx.Guild.Id).Currency ?? "credits"} on the lottery! (seems legit)");
}
