36 lines
998 B
Perl
36 lines
998 B
Perl
#!perl
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use Net::MQTT::Simple "mosquitto.space.revspace.nl";
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sub command { NEXT }
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sub hook_checkout {
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my ($class, $cart, $user, $transaction_id) = @_;
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my $filename = "revbank.sales";
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my @entries = $cart->entries('product_id') or return;
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my %already_retained;
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my %stats = do {
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my $in;
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open($in, '<', $filename)
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? map { split " ", $_, 2 } readline $in
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: ()
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};
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$stats{ $_->attribute('product_id') } += $_->quantity for @entries;
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for (@entries) {
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my $product = $_->{product_id};
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publish "revspace/bank/sale" => $product;
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next if $already_retained{ $product };
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retain "revspace/bank/$product" => $stats{$_->{product_id}};
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$already_retained{ $product } = 1;
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}
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open my $out, '>', "$filename.$$" or warn "$filename.$$: $!";
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printf {$out} "%-16s %9d\n", $_, $stats{$_} for sort keys %stats;
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close $out or die "$filename.$$: $!";
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rename "$filename.$$", $filename or die $!;
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}
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