from core.builtin_concepts import BuiltinConcepts

from tests.TestUsingMemoryBasedSheerka import TestUsingMemoryBasedSheerka


class TestSheerkaHasAManager(TestUsingMemoryBasedSheerka):
    def test_i_can_set_hasa(self):
        sheerka, context, king, kingdom = self.init_concepts("king", "kingdom")

        king_instance = sheerka.new("king")
        res = sheerka.set_hasa(context, king_instance, kingdom)
        assert res.status

        # when global truth is not activated, only the current instance is modified
        another_king = sheerka.get_by_key("king")
        assert not another_king.get_prop(BuiltinConcepts.HASA) == {kingdom}
        assert not sheerka.hasa(another_king, kingdom)

    def test_i_cannot_set_the_same_attribute_twice(self):
        sheerka, context, king, kingdom = self.init_concepts("king", "kingdom")

        king_instance = sheerka.new("king")
        sheerka.set_hasa(context, king_instance, kingdom)
        res = sheerka.set_hasa(context, king_instance, kingdom)

        assert not res.status
        assert sheerka.isinstance(res.body, BuiltinConcepts.PROPERTY_ALREADY_DEFINED)
        assert res.body.property_name == BuiltinConcepts.HASA
        assert res.body.property_value == kingdom
        assert res.body.concept == king_instance

    def test_i_can_set_hasa_when_global_truth_is_activated(self):
        sheerka, context, king, kingdom = self.init_test(global_truth=True).with_concepts(
            "king",
            "kingdom").unpack()

        res = sheerka.set_hasa(context, sheerka.new("king"), kingdom)
        assert res.status

        another_king = sheerka.get_by_key("king")
        assert another_king.get_prop(BuiltinConcepts.HASA) == {kingdom}

        # check that the definition of the concept has been updated
        assert sheerka.hasa(sheerka.new("king"), kingdom)

    def test_i_cannot_set_the_same_attribute_twice_when_global_truth_is_activated(self):
        sheerka, context, king, kingdom = self.init_test(global_truth=True).with_concepts(
            "king",
            "kingdom").unpack()

        sheerka.set_hasa(context, sheerka.new("king"), kingdom)
        res = sheerka.set_hasa(context, sheerka.new("king"), kingdom)

        assert not res.status
        assert sheerka.isinstance(res.body, BuiltinConcepts.PROPERTY_ALREADY_DEFINED)
        assert res.body.property_name == BuiltinConcepts.HASA
        assert res.body.property_value == kingdom
        assert res.body.concept == sheerka.new("king")