# Copyright (c) 2009-2015, Dmitry Vasiliev <dima@hlabs.org>
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from erlport import Atom, erlang


# TODO: Base class should be extracted so we can use it for Ruby class too
class Python(object):

    def __init__(self, **kwargs):
        options = self.parse_options(kwargs)
        # TODO: Handle 'node' option with 'rpc' module
        result = erlang.call(Atom("python"), Atom("start"), options)
        if type(result) != tuple or len(result) != 2:
            # TODO: Fix exception
            raise Exception(result)
        if result[0] is not Atom("ok"):
            # TODO: Fix exception
            raise Exception(result[1])
        self.pid = result[1]

    def parse_options(self, kwargs):
        # TODO: Parse options
        return []

    def call(self, module, function, args):
        # TODO: Check all arguments
        # TODO: Reraise Python related exceptions
        return erlang.call(Atom("python"), Atom("call"),
            [self.pid, module, function, args])

    def stop(self):
        # TODO: Check result
        erlang.call(Atom("python"), Atom("stop"), [self.pid])