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__author__ = 'Stephen Mallette (http://stephen.genoprime.com)'

from gremlin_python.structure.graph import Graph
from gremlin_python.process.graph_traversal import GraphTraversalSource
from gremlin_python.process.traversal import TraversalStrategies
from .. import statics


class AnonymousTraversalSource(object):

    def __init__(self, traversal_source_class=GraphTraversalSource):
        self.traversal_source_class = traversal_source_class

    @classmethod
    def traversal(cls, traversal_source_class=GraphTraversalSource):
        return AnonymousTraversalSource(traversal_source_class)

    def withGraph(self, graph):
        return self.traversal_source_class(graph, TraversalStrategies.global_cache[graph.__class__])

    def withRemote(self, remote_connection):
        return self.withGraph(Graph()).withRemote(remote_connection)


def traversal(traversal_source_class=GraphTraversalSource):
    return AnonymousTraversalSource.traversal(traversal_source_class)


statics.add_static('traversal', traversal)