File Coverage

blib/lib/Web/Machine/Util/ContentNegotiation.pm

Criterion	Covered	Total	%
statement	32	32	100.0
branch	10	10	100.0
condition			n/a
subroutine	11	11	100.0
pod	5	5	100.0
total	58	58	100.0

package Web::Machine::Util::ContentNegotiation;
# ABSTRACT: Module to handle content negotiation

use strict;
use warnings;

our $VERSION = '0.16';

use Scalar::Util qw[ blessed ];

use Web::Machine::Util qw[
    first
    pair_key
];

use Sub::Exporter -setup => {
    exports => [qw[
        choose_media_type
        match_acceptable_media_type
        choose_language
        choose_charset
        choose_encoding
    ]]
};

my $ACTIONPACK = Web::Machine::Util::get_action_pack;
my $NEGOTIATOR = $ACTIONPACK->get_content_negotiator;

sub choose_media_type {
    my ($provided, $header) = @_;
    $NEGOTIATOR->choose_media_type( $provided, $header );
}

sub match_acceptable_media_type {
    my ($to_match, $accepted) = @_;
    my $content_type = blessed $to_match ? $to_match : $ACTIONPACK->create( 'MediaType' => $to_match );
    if ( my $acceptable = first { $content_type->match( pair_key( $_ ) ) } @$accepted ) {
        return $acceptable;
    }
    return;
}

sub choose_language {
    my ($provided, $header) = @_;
    return 1 if scalar @$provided == 0;
    $NEGOTIATOR->choose_language( $provided, $header );
}

sub choose_charset {
    my ($provided, $header) = @_;
    return 1 if scalar @$provided == 0;
    $NEGOTIATOR->choose_charset( [ map { ref $_ ? pair_key( $_ ) : $_ } @$provided ], $header );
}

sub choose_encoding {
    my ($provided, $header) = @_;
    $NEGOTIATOR->choose_encoding( [ keys %$provided ], $header );
}

1;

__END__