package Net::HTTP::Spore::Middleware::Redirection;
$Net::HTTP::Spore::Middleware::Redirection::VERSION = '0.09';
# ABSTRACT: Middleware for redirections

use Moose;

extends 'Net::HTTP::Spore::Middleware';

with 'Net::HTTP::Spore::Role::Request', 'Net::HTTP::Spore::Role::UserAgent';

has max_redirect => ( is => 'rw', isa => 'Int', lazy => 1, default => 5 );

sub call {
    my ( $self, $req ) = @_;

    my $nredirect = 0;

    return $self->response_cb(
        sub {
            my $res      = shift;
            while ( $nredirect < $self->max_redirect ) {
                my $location = $res->header('location');
                my $status   = $res->status;
                if (
                    $location
                    and (  $status == 301
                        or $status == 302
                        or $status == 303
                        or $status == 307 )
                  )
                {
                    my $uri = URI->new($location);
                    $req->env->{HTTP_HOST}   = $uri->host;
                    $req->env->{PATH_INFO}   = $uri->path;
                    $req->env->{SERVER_PORT} = $uri->port;
                    $req->env->{SERVER_NAME} = $uri->host;
                    $res = $self->_request($req);
                    $nredirect++;
                }else{
                    last;
                }
            }
            return $res;
        }
    );
}

1;

__END__

=pod

=encoding UTF-8

=head1 NAME

Net::HTTP::Spore::Middleware::Redirection - Middleware for redirections

=head1 VERSION

version 0.09

=head1 SYNOPSIS

    my $client = Net::HTTP::Spore->new_from_spec('twitter.json');
    $client->enable( 'Redirection', max_redirect => 2 );

    # or
    $client->enable( 'Redirection');

=head1 DESCRIPTION

This middleware let you define how many redirection your client should follow. By default, a client won't follow redirections.

=head2 ATTRIBUTES

=head3 max_redirect

How many redirections the client should follow. Default is 5

=head1 AUTHORS

=over 4

=item *

Franck Cuny <franck.cuny@gmail.com>

=item *

Ash Berlin <ash@cpan.org>

=item *

Ahmad Fatoum <athreef@cpan.org>

=back

=head1 COPYRIGHT AND LICENSE

This software is copyright (c) 2012 by Linkfluence.

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.

=cut