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New feature: percentage addons (discounts etc)

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This commit is contained in:
Juerd Waalboer 2023-01-05 19:10:40 +01:00
parent eb55aa0eb5
commit 7c05b3108c
2 changed files with 60 additions and 31 deletions
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11
lib/RevBank/Cart/Entry.pm
View file

@ -72,6 +72,17 @@ sub attribute($self, $key, $new = undef) {
return $$ref;
}
sub amount($self, $new = undef) {
my $ref = \$self->{amount};
if (defined $new) {
$new = RevBank::Amount->parse_string($new) if not ref $new;
$$ref = $new;
$self->attribute('changed', 1);
}
return $$ref;
}
sub quantity($self, $new = undef) {
my $ref = \$self->{quantity};
if (defined $new) {

80
plugins/products
View file

@ -3,6 +3,7 @@
HELP1 "<productID>" => "Add a product to pending transaction";
my $filename = 'revbank.products';
my $default_contra = '+sales/products';
sub _read_products() {
my %products;
@ -23,11 +24,20 @@ sub _read_products() {
my ($price, $contra) = split /\@/, $p, 2;
my $sign = $price =~ s/^-// ? -1 : 1;
my $percent = $price =~ s/%$//;
$price = eval { parse_amount($price) };
if (not defined $price) {
warn "Invalid price for '$ids[0]' at $filename line $line.\n";
next;
if ($percent) {
if (grep !/^\+/, @ids) {
warn "Percentage invalid for non-addon at $filename line $line.\n";
next;
}
$price = 0 + $price;
} else {
$price = eval { parse_amount($price) };
if (not defined $price) {
warn "Invalid price for '$ids[0]' at $filename line $line.\n";
next;
}
}
my @addons;
@ -36,8 +46,9 @@ sub _read_products() {
$products{$_} = {
id => $ids[0],
price => $sign * $price,
percent => $percent,
description => $desc,
contra => $contra || '+sales/products',
contra => $contra || $default_contra,
addons => \@addons,
line => $line,
} for @ids;
@ -64,17 +75,26 @@ sub command :Tab(&tab) ($self, $cart, $command, @) {
return ACCEPT;
}
my $total = $price;
my $contra_desc = "\$you bought $product->{description}";
my @addons = @{ $product->{addons} };
my @infos = @addons ? (
$price->cents > 0 ? ([ $price, "Product" ])
: $price->cents < 0 ? ([ $price, "Reimbursement" ])
: () # price == 0: only addons
) : ();
my $entry = $cart->add(
-$price,
$product->{description},
{ product_id => $product->{id}, plugin => $self->id, addons => $product->{addons} }
);
$entry->add_contra(
$product->{contra},
+$price,
$contra_desc
);
my @addons = @{ $product->{addons} }
or return ACCEPT;
$entry->add_info($price, "Product") if $price->cents > 0;
$entry->add_info($price, "Reimbursement") if $price->cents < 0;
my @contras;
my %ids_seen = ($product->{id} => 1);
while (my $addon_id = shift @addons) {
@ -87,33 +107,31 @@ sub command :Tab(&tab) ($self, $cart, $command, @) {
my $addon = $products->{$addon_id}
or return REJECT, "Addon '$addon_id' does not exist.";
$total += $addon->{price};
my $addon_price = $addon->{price};
if ($addon->{percent}) {
my $sum = List::Util::sum map {
$_->{amount}
} grep {
$_->{user} eq $addon->{contra}
} $entry->contras;
push @infos, [ $addon->{price}, $addon->{description} ]
$addon_price = $addon_price / 100 * $sum;
}
$entry->amount( $entry->amount - $addon_price );
$entry->add_info($addon_price, $addon->{description})
if $addon->{contra} =~ /^[-+]/;
push @contras, [
$entry->add_contra(
$addon->{contra},
$addon->{price},
$addon_price,
"$addon->{description} ($contra_desc)"
];
);
push @addons, @{ $addon->{addons} };
}
my $entry = $cart->add(
-$total,
$product->{description},
{ product_id => $product->{id}, plugin => $self->id, addons => $product->{addons} }
);
$entry->add_contra(
$product->{contra},
+$price,
$contra_desc
);
$entry->add_info(@$_) for @infos;
$entry->add_contra(@$_) for @contras;
return ACCEPT;
}