File Coverage

blib/lib/WWW/Lipsum.pm

Criterion	Covered	Total	%
statement	46	53	86.7
branch	13	24	54.1
condition	1	6	16.6
subroutine	11	12	91.6
pod	1	1	100.0
total	72	96	75.0

package WWW::Lipsum;

use strict;
use warnings;

our $VERSION = '1.001011'; # VERSION

use Carp qw/croak/;
use LWP::UserAgent;
use Mojo::DOM;
use Moo;
use overload q|""| => sub {
    my $self = shift;
    my $text = $self->generate;
    return $text || '[Error: ' . $self->error . ']';
};

has what   => ( is => 'rw', default => 'paras'  );
has start  => ( is => 'rw', default => 1        );
has amount => ( is => 'rw', default => 5        );
has html   => ( is => 'rw', default => 0        );
has lipsum => ( is => 'rw', build_args => undef );

has error => ( is => 'rw', build_arg => undef );
has _ua    => ( is => 'ro', build_arg => undef, default => sub {
    return LWP::UserAgent->new( timeout => 30,
        agent => 'Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:26.0) '
                    . 'Gecko/20100101 Firefox/26.0'
    );
});

sub generate {
    my $self = shift;
    $self->lipsum(undef);

    $self->_prep_args( @_ );
    my $res = $self->_ua->post( 'http://lipsum.com/feed/html', {
        amount => $self->amount,
        what   => $self->what,
        start  => $self->start ? 1 : 0,
        generate => 'Generate Lorem Ipsum',
    });

    return $self->_set_error( 'Network error: ' . $res->status_line )
        unless $res->is_success;

    my $dom = eval {
        Mojo::DOM->new( $res->decoded_content )
            ->find('#lipsum')
            ->first
            ->children;
    };
    @$ and return $self->_set_error("Parsing error: $@");
    $dom or return $self->_set_error("Unknown error");

    $self->html
        or return $self->lipsum(
            join "\n\n", map $_->all_text,
                $dom->grep(sub{ $_->tag eq 'p'})->each
        );

    my $html = join '', $dom->each;

    # a little hackery to get rid of lipsum.com's invalid markup
    $self->what eq 'lists' and $html =~ s{|}{}gi;
    $html =~ s/^\s+|\s+$//g;

    return $self->lipsum( $html );
}

sub _set_error {
    my ( $self, $error ) = @_;
    $self->error( $error );
    return;
}

sub _prep_args {
    my $self = shift;
    my %args = @_;

    $self->start( $args{start} )
        if exists $args{start};

    $self->html( $args{html} )
        if exists $args{html};

    if ( defined $args{what} ) {
        croak q{Argument 'what' must be one of 'paras', 'words', 'bytes',}
                . q{ or 'lists'}
            unless $args{what} =~ /\A(paras|words|bytes|lists)\z/;

        $self->what( $args{what} );
    }

    if ( defined $args{amount} ) {
        croak q{Argument 'amount' must contain a positive integer}
            unless $args{amount} and $args{amount} =~ /\A\d+\z/;

        $self->amount( $args{amount} );
    }

    return;
}

q|
0 bottles of beer on the wall, 0 bottles of beer! You take one down,
and pass it around, 4294967295 bottles of beer on the wall!
|;

__END__