import logging
import asyncio
import os
from contextlib import asynccontextmanager
from fastapi import FastAPI
from fastapi.staticfiles import StaticFiles

from app.core.database import init_db, async_session
from app.core.scheduler import start_scheduler
from app.core.state import state_manager, discovery_service
from sqlalchemy import select
from app.models.device import GroupModel
from app.api.routes import devices, control, schedules

LOG_LEVEL = os.getenv("LOG_LEVEL", "INFO").upper()

logging.basicConfig(level=LOG_LEVEL, format="%(asctime)s | %(levelname)s | %(message)s")
logger = logging.getLogger(__name__)


@asynccontextmanager
async def lifespan(app: FastAPI):
    # 1. БД и Планировщик
    await init_db()
    await start_scheduler()

    # 2. Загрузка групп
    async with async_session() as session:
        result = await session.execute(select(GroupModel))
        for g in result.scalars().all():
            state_manager.groups[g.id] = g
            logger.info(f"📂 Загружена группа: {g.name}")

    # 3. Фоновый Discovery
    discovery_task = asyncio.create_task(
        discovery_service.start_background_discovery(state_manager)
    )

    yield

    discovery_task.cancel()
    logger.info("🛑 Ignis Core остановлен")


app = FastAPI(title="Ignis Core API", lifespan=lifespan)

# Регистрация роутеров
app.include_router(devices.router, prefix="/devices", tags=["Devices & Groups"])
app.include_router(control.router, prefix="/control", tags=["Control"])
app.include_router(schedules.router, prefix="/schedules", tags=["Schedules"])

# Статика
# Мы убираем html=True из корня, чтобы 404-е ошибки API не превращались в загрузку index.html
app.mount("/static", StaticFiles(directory="static"), name="static")


@app.get("/")
async def read_index():
    from fastapi.responses import FileResponse

    return FileResponse("static/index.html")


if __name__ == "__main__":
    import uvicorn

    uvicorn.run(app, host="0.0.0.0", port=8000)