"""Tests for GenericServerTask — TDD: tests before implementation."""

import pytest

from i2p_apps.i2ptunnel.config import TunnelDefinition, TunnelType
from i2p_apps.i2ptunnel.server_task import GenericServerTask


def _make_server_def(**kw):
    defaults = dict(
        name="test-server",
        type=TunnelType.SERVER,
        target_host="127.0.0.1",
        target_port=8080,
    )
    defaults.update(kw)
    return TunnelDefinition(**defaults)


class MockServerSession:
    def __init__(self):
        self.destination = "SERV" * 129

    async def accept(self):
        raise NotImplementedError("No mock accept")

    async def close(self):
        pass


class TestGenericServerTask:
    def test_creation(self):
        config = _make_server_def()
        session = MockServerSession()
        task = GenericServerTask(config, session)
        assert task.tunnel_type == TunnelType.SERVER
        assert not task.is_open

    def test_config_target(self):
        config = _make_server_def(target_host="10.0.0.1", target_port=9090)
        session = MockServerSession()
        task = GenericServerTask(config, session)
        assert task._config.target_host == "10.0.0.1"
        assert task._config.target_port == 9090

    def test_stats_initial(self):
        config = _make_server_def()
        session = MockServerSession()
        task = GenericServerTask(config, session)
        assert task.stats.total_connections == 0
        assert task.stats.active_connections == 0
        assert task.stats.total_bytes == 0