"""Точка входа: `pipu-rec serve` (онлайн-API) или `pipu-rec analyze` (воркер аудиоанализа)."""

import argparse
import asyncio
import logging

import psycopg
import redis.asyncio as aioredis
import uvicorn

from pipu_rec.api.app import create_app
from pipu_rec.settings import Settings

log = logging.getLogger("pipu_rec")


def _serve(settings: Settings) -> None:
    rdb = aioredis.Redis.from_url(settings.redis_url)

    async def check_postgres() -> None:
        async with await psycopg.AsyncConnection.connect(settings.database_url, connect_timeout=2) as conn:
            await conn.execute("SELECT 1")

    async def check_redis() -> None:
        await rdb.ping()

    app = create_app(settings, {"postgres": check_postgres, "redis": check_redis})
    uvicorn.run(app, host=settings.http_host, port=settings.http_port, log_level=settings.log_level)


def _analyze(settings: Settings, workers: int) -> None:
    # Аудиоанализ (Essentia) появится в M4; сейчас воркер только держит процесс живым.
    log.info("analyzer started: workers=%d version=%s (no-op until M4)", workers, settings.version)

    async def idle() -> None:
        while True:
            await asyncio.sleep(3600)

    asyncio.run(idle())


def main() -> None:
    parser = argparse.ArgumentParser(prog="pipu-rec")
    sub = parser.add_subparsers(dest="cmd", required=True)
    sub.add_parser("serve", help="внутренний API рекомендаций")
    analyze = sub.add_parser("analyze", help="воркер аудиоанализа")
    analyze.add_argument("--workers", type=int, default=4)
    args = parser.parse_args()

    settings = Settings()
    logging.basicConfig(level=settings.log_level.upper())
    if args.cmd == "serve":
        _serve(settings)
    else:
        _analyze(settings, args.workers)


if __name__ == "__main__":
    main()