# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This Source Code Form is "Incompatible With Secondary Licenses", as
# defined by the Mozilla Public License, v. 2.0.

package Bugzilla::WebService::Classification;

use 5.10.1;
use strict;
use warnings;

use parent qw (Bugzilla::WebService);

use Bugzilla::Classification;
use Bugzilla::Error;
use Bugzilla::WebService::Util qw(filter validate params_to_objects);

use constant READ_ONLY => qw(
    get
);

use constant PUBLIC_METHODS => qw(
    get
);

sub get {
    my ($self, $params) = validate(@_, 'names', 'ids');

    defined $params->{names} || defined $params->{ids}
        || ThrowCodeError('params_required', { function => 'Classification.get',
                                               params => ['names', 'ids'] });

    my $user = Bugzilla->user;

    Bugzilla->params->{'useclassification'}
      || $user->in_group('editclassifications')
      || ThrowUserError('auth_classification_not_enabled');

    Bugzilla->switch_to_shadow_db;

    my @classification_objs = @{ params_to_objects($params, 'Bugzilla::Classification') };
    unless ($user->in_group('editclassifications')) {
        my %selectable_class = map { $_->id => 1 } @{$user->get_selectable_classifications};
        @classification_objs = grep { $selectable_class{$_->id} } @classification_objs;
    }

    my @classifications = map { $self->_classification_to_hash($_, $params) } @classification_objs;

    return { classifications => \@classifications };
}

sub _classification_to_hash {
    my ($self, $classification, $params) = @_;

    my $user = Bugzilla->user;
    return unless (Bugzilla->params->{'useclassification'} || $user->in_group('editclassifications'));

    my $products = $user->in_group('editclassifications') ?
                     $classification->products : $user->get_selectable_products($classification->id);

    return filter $params, {
        id          => $self->type('int',    $classification->id),
        name        => $self->type('string', $classification->name),
        description => $self->type('string', $classification->description),
        sort_key    => $self->type('int',    $classification->sortkey),
        products    => [ map { $self->_product_to_hash($_, $params) } @$products ],
    };
}

sub _product_to_hash {
    my ($self, $product, $params) = @_;

    return filter $params, {
       id          => $self->type('int', $product->id),
       name        => $self->type('string', $product->name),
       description => $self->type('string', $product->description),
   }, undef, 'products';
}

1;

__END__

=head1 NAME

Bugzilla::Webservice::Classification - The Classification API

=head1 DESCRIPTION

This part of the Bugzilla API allows you to deal with the available Classifications.
You will be able to get information about them as well as manipulate them.

=head1 METHODS

See L<Bugzilla::WebService> for a description of how parameters are passed,
and what B<STABLE>, B<UNSTABLE>, and B<EXPERIMENTAL> mean.

Although the data input and output is the same for JSONRPC, XMLRPC and REST,
the directions for how to access the data via REST is noted in each method
where applicable.

=head1 Classification Retrieval

=head2 get

B<EXPERIMENTAL>

=over

=item B<Description>

Returns a hash containing information about a set of classifications.

=item B<REST>

To return information on a single classification:

GET /rest/classification/<classification_id_or_name>

The returned data format will be the same as below.

=item B<Params>

In addition to the parameters below, this method also accepts the
standard L<include_fields|Bugzilla::WebService/include_fields> and
L<exclude_fields|Bugzilla::WebService/exclude_fields> arguments.

You could get classifications info by supplying their names and/or ids.
So, this method accepts the following parameters:

=over

=item C<ids>

An array of classification ids.

=item C<names>

An array of classification names.

=back

=item B<Returns>

A hash with the key C<classifications> and an array of hashes as the corresponding value.
Each element of the array represents a classification that the user is authorized to see
and has the following keys:

=over

=item C<id>

C<int> The id of the classification.

=item C<name>

C<string> The name of the classification.

=item C<description>

C<string> The description of the classificaion.

=item C<sort_key>

C<int> The value which determines the order the classification is sorted.

=item C<products>

An array of hashes. The array contains the products the user is authorized to
access within the classification. Each hash has the following keys:

=over

=item C<name>

C<string> The name of the product.

=item C<id>

C<int> The id of the product.

=item C<description>

C<string> The description of the product.

=back

=back

=item B<Errors>

=over

=item 900 (Classification not enabled)

Classification is not enabled on this installation.

=back

=item B<History>

=over

=item Added in Bugzilla B<4.4>.

=item REST API call added in Bugzilla B<5.0>.

=back

=back