import time
from typing import AsyncIterator

from aiohttp import web
from redis import asyncio as aioredis

from aiohttp_session import get_session, setup
from aiohttp_session.redis_storage import RedisStorage


async def handler(request: web.Request) -> web.Response:
    session = await get_session(request)
    last_visit = session["last_visit"] if "last_visit" in session else None
    session["last_visit"] = time.time()
    text = f"Last visited: {last_visit}"
    return web.Response(text=text)


async def redis_pool(app: web.Application) -> AsyncIterator[None]:
    redis_address = "redis://127.0.0.1:6379"
    async with aioredis.from_url(redis_address) as redis:  # type: ignore[no-untyped-call]
        storage = RedisStorage(redis)
        setup(app, storage)
        yield


def make_app() -> web.Application:
    app = web.Application()
    app.cleanup_ctx.append(redis_pool)
    app.router.add_get("/", handler)
    return app


web.run_app(make_app())