import github::collector

Signed-off-by: franck cuny <franck@lumberjaph.net>

1 files changed, 128 insertions, 0 deletions

diff --git a/lib/GitHub/Collector/Role/Graph/Neighbors.pm b/lib/GitHub/Collector/Role/Graph/Neighbors.pm
new file mode 100644
index 0000000..627de94
--- /dev/null
+++ b/lib/GitHub/Collector/Role/Graph/Neighbors.pm
@@ -0,0 +1,128 @@
+package GitHub::Collector::Role::Graph::Neighbors;
+
+use Moose::Role;
+with qw(GitHub::Collector::Role::Languages);
+
+sub neighbors {
+    my ( $self, $name, $with_connections ) = @_;
+
+    $self->_neighbors($name);
+
+    if ($with_connections) {
+        foreach my $id ( keys %{ $self->edges } ) {
+            $self->_connections( $id, $name );
+        }
+    }
+}
+
+sub _neighbors {
+    my ( $self, $name ) = @_;
+
+    if ( !defined $self->nodes->{$name} ) {
+        $self->_create_node($name);
+    }
+
+    $self->_fetch_edges_from($name);
+    $self->_fetch_edges_to($name);
+}
+
+sub _connections {
+    my ( $self, $id, $name ) = @_;
+
+    if ( $self->edges->{$id}->{sourceId} eq $name ) {
+        $self->_neighbors( $self->edges->{$id}->{targetId} );
+    }
+    else {
+        $self->_neighbors( $self->edges->{$id}->{sourceId} );
+    }
+}
+
+sub remove_leaves {
+    my $self = shift;
+
+    foreach my $id ( keys %{$self->nodes} ) {
+        if ( $self->nodes->{$id}->{size} < 2 ) {
+            delete $self->nodes->{$id};
+        }
+    }
+
+    foreach my $id ( keys %{$self->edges} ) {
+        unless ( $self->nodes->{ $self->edges->{$id}->{sourceId} }
+            && $self->nodes->{ $self->edges->{$id}->{targetId} } )
+        {
+            delete $self->edges->{ $id };
+        }
+    }
+}
+
+sub _fetch_edges_from {
+    my ( $self, $name ) = @_;
+
+    my $connections = $self->db_edges->find( { source => $name } );
+
+    while ( my $edge = $connections->next ) {
+        my $edge_id = $edge->{source} . $edge->{target};
+
+        if ( !defined $self->edges->{$edge_id} ) {
+            $self->edges->{$edge_id} = {
+                id       => $edge_id,
+                targetId => $edge->{target},
+                sourceId => $name,
+                weight   => $edge->{weight},
+            };
+
+            $self->nodes->{$name}->{size}++;
+
+            if ( defined $self->nodes->{ $edge->{target} } ) {
+                $self->nodes->{ $edge->{target} }->{size}++;
+            }
+            else {
+                $self->_create_node( $edge->{target}, 1 );
+            }
+        }
+    }
+}
+
+sub _fetch_edges_to {
+    my ($self, $name) = @_;
+    my $connections = $self->db_edges->find( { target => $name } );
+    while ( my $edge = $connections->next ) {
+        my $edge_id = $edge->{source} . $edge->{target};
+
+        if ( !defined $self->edges->{$edge_id} ) {
+            $self->edges->{$edge_id} = {
+                id       => $edge_id,
+                targetId => $name,
+                sourceId => $edge->{source},
+                weight   => $edge->{weight},
+            };
+
+            $self->nodes->{$name}->{size}++;
+
+            if ( defined $self->nodes->{ $edge->{source} } ) {
+                $self->nodes->{ $edge->{source} }->{size}++;
+            }
+            else {
+                $self->_create_node( $edge->{source}, 1 );
+            }
+        }
+    }
+}
+
+sub _create_node {
+    my ( $self, $login, $size ) = @_;
+
+    $size ||= 0;
+
+    my $info = $self->db_profiles->find_one( { login => $login } );
+    $self->nodes->{$login} = {
+        id       => $login,
+        label    => $login,
+        size     => $size,
+        language => $self->map_languages($info->{language}),
+        country  => $info->{country} || '',
+        indegree => $info->{indegree},
+    };
+}
+
+1;