#!perl

HELP "give <account> <amount> [<reason>]" => "Transfer money to user's account";

sub command :Tab(give) {
    my ($self, $cart, $command) = @_;

    return NEXT if $command ne 'give';

    return "Benificiary", \&benificiary;
}

sub benificiary :Tab(USERS) {
    my ($self, $cart, $input) = @_;

    $self->{benificiary} = parse_user($input)
        or return REJECT, "$input: No such user.";

    return "Amount to give to $self->{benificiary}", \&amount;
}

sub amount {
    my ($self, $cart, $input) = @_;

    $self->{amount} = parse_amount($input)
        or return REJECT, "$input: Invalid amount.";

    return sprintf(
        "Why are you giving %.2f to %s, or enter your username to end",
        $self->{amount},
        $self->{benificiary}
    ), \&reason;
}

sub reason :Tab(whatevah) {
    my ($self, $cart, $input) = @_;

    my $benificiary = $self->{benificiary};
    my $amount = $self->{amount};

    my $user = parse_user($input);
    my $reason = $user ? "" : " ($input)";

    $cart
        ->add(-$amount, "Given to $benificiary" . $reason)
        ->add_contra($benificiary, +$amount, "Received from \$you" . $reason);

    $cart->checkout($user) if $user;

    return ACCEPT;
}