"""md2vk — FastAPI приложение."""

from __future__ import annotations

import logging
from contextlib import asynccontextmanager

from fastapi import FastAPI, Request
from fastapi.responses import JSONResponse

from app.database import init_db
from app.api.v1 import router as api_v1_router
from app.api.audit import AuditMiddleware

logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(name)s: %(message)s")
logger = logging.getLogger("md2vk")


@asynccontextmanager
async def lifespan(app: FastAPI):
    """Инициализация при старте."""
    logger.info("Initializing database...")
    await init_db()
    logger.info("Database ready. Starting md2vk...")
    yield
    logger.info("Shutting down...")


app = FastAPI(
    title="md2vk",
    description="Сервис публикации Markdown на стене VK",
    version="0.1.0",
    lifespan=lifespan,
)

# Аудит-лог авторизации/запросов API (JSONL, ротация по дням)
app.add_middleware(AuditMiddleware)

app.include_router(api_v1_router)


@app.exception_handler(Exception)
async def global_exception_handler(request: Request, exc: Exception):
    logger.error(f"Unhandled error: {exc}", exc_info=True)
    return JSONResponse(
        status_code=500,
        content={"detail": f"Internal server error: {str(exc)}"},
    )