import pytest
from dataclasses import dataclass

from core.global_symbols import NotInit, NotFound, Removed
from sdp.sheerkaDataProvider import Event
from sdp.sheerkaSerializer import Serializer, JsonSerializer, SerializerContext, CustomTypeSerializer
from datetime import datetime
import core.utils


@dataclass()
class Obj:
    key: str = ""
    prop1: str = ""

    def from_dict(self, json_object):
        self.prop1 = json_object["prop1"]
        self.key = json_object["key"]
        return self

    def to_dict(self):
        return self.__dict__


def test_i_can_serialize_an_event():
    event = Event("test", user_id="user", date=datetime.fromisoformat("2019-10-21T10:20:30.999"))
    serializer = Serializer()

    stream = serializer.serialize(event, None)
    loaded = serializer.deserialize(stream, None)

    assert event.version == loaded.version
    assert event.user_id == loaded.user_id
    assert event.date == loaded.date
    assert event.message == loaded.message


def test_i_can_serialize_an_object():
    obj = Obj("10", "value")
    serializer = Serializer()
    serializer.register(JsonSerializer("tests.sdp.test_sheerkaSerializer.Obj"))
    context = SerializerContext("kodjo", "6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b")

    stream = serializer.serialize(obj, context)
    loaded = serializer.deserialize(stream, context)

    assert getattr(loaded, Serializer.HISTORY)[Serializer.USERNAME] == "kodjo"
    assert getattr(loaded, Serializer.HISTORY)[Serializer.MODIFICATION_DATE] != ""
    assert getattr(loaded, Serializer.HISTORY)[Serializer.PARENTS] == []
    assert loaded.key == "10"
    assert loaded.prop1 == "value"


@pytest.mark.parametrize("custom_type", [
    NotInit, NotFound, Removed
])
def test_i_can_serialize_custom_type(custom_type):
    serializer = Serializer()
    serializer.register(CustomTypeSerializer())
    context = SerializerContext("kodjo", "6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b")

    stream = serializer.serialize(custom_type, context)
    loaded = serializer.deserialize(stream, context)

    assert loaded == custom_type


@pytest.mark.parametrize("obj, expected", [
    (Obj("10", "value"), "tests.sdp.test_sheerkaSerializer.Obj")
])
def test_get_full_qualified_name(obj, expected):
    assert expected == core.utils.get_full_qualified_name(obj)