package MGA::Mirrors::Controller::Graph;
use Moose;
use namespace::autoclean;

BEGIN {extends 'Catalyst::Controller'; }

=head1 NAME

MGA::Mirrors::Controller::Graph - Catalyst Controller

=head1 DESCRIPTION

Catalyst Controller.

=head1 METHODS

=cut


=head2 index

=cut

sub index :Path :Args(0) {
    my ( $self, $c ) = @_;
    
    my $mirror_list = $c->model('Mirrors')->find_mirrors;
    my $graph = GraphViz->new(layout => 'dot', overlap => 'orthoxy', rankdir => 1);
    my %node;
    my %edge;
    foreach (@{$mirror_list || []}) {
        $node{$_->{hostname}} = $_;
        if ($_->{syncfrom}) {
            $edge{$_->{syncfrom}}{$_->{hostname}} = 1;
        }
    }
    my %nodadded;
    foreach my $from (keys %edge) {
        foreach my $to (keys %{ $edge{$from} ||{}}) {
            foreach ($from, $to) {
                if (!$nodadded{$_}) {
                   $graph->add_node($_, shape => 'box', cluster => $node{$_}{country});
                }
            }
            $graph->add_edge($from, $to);
        }
    }
    $c->stash->{graphviz}->{graph} = $graph;
}

sub end : Private {
    my ($self, $c) = @_;
    $c->view('GraphViz')->process($c);
    $c->model('Mirrors')->db->rollback;
}

=head1 AUTHOR

Olivier Thauvin

=head1 LICENSE

This library is free software. You can redistribute it and/or modify
it under the same terms as Perl itself.

=cut

__PACKAGE__->meta->make_immutable;

1;