import pytest

from aiogram.fsm.context import FSMContext
from aiogram.fsm.storage.base import StorageKey
from aiogram.fsm.storage.memory import MemoryStorage
from tests.mocked_bot import MockedBot


@pytest.fixture()
def state(bot: MockedBot):
    storage = MemoryStorage()
    key = StorageKey(user_id=42, chat_id=-42, bot_id=bot.id)
    ctx = storage.storage[key]
    ctx.state = "test"
    ctx.data = {"foo": "bar"}
    return FSMContext(storage=storage, key=key)


class TestFSMContext:
    async def test_address_mapping(self, bot: MockedBot):
        storage = MemoryStorage()
        ctx = storage.storage[StorageKey(chat_id=-42, user_id=42, bot_id=bot.id)]
        ctx.state = "test"
        ctx.data = {"foo": "bar"}
        state = FSMContext(storage=storage, key=StorageKey(chat_id=-42, user_id=42, bot_id=bot.id))
        state2 = FSMContext(storage=storage, key=StorageKey(chat_id=42, user_id=42, bot_id=bot.id))
        state3 = FSMContext(storage=storage, key=StorageKey(chat_id=69, user_id=69, bot_id=bot.id))

        assert await state.get_state() == "test"
        assert await state2.get_state() is None
        assert await state3.get_state() is None

        assert await state.get_data() == {"foo": "bar"}
        assert await state2.get_data() == {}
        assert await state3.get_data() == {}

        await state2.set_state("experiments")
        assert await state.get_state() == "test"
        assert await state3.get_state() is None

        await state3.set_data({"key": "value"})
        assert await state2.get_data() == {}

        await state.update_data({"key": "value"})
        assert await state.get_data() == {"foo": "bar", "key": "value"}

        await state.clear()
        assert await state.get_state() is None
        assert await state.get_data() == {}

        assert await state2.get_state() == "experiments"