import logging

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from sqlalchemy import create_engine, text

from .config import settings

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

app = FastAPI(
    title="Proxmox VPS Panel Secure",
    version="1.0.0",
)

origins = [item.strip() for item in settings.allow_origins.split(",") if item.strip()]
if not origins:
    raise RuntimeError("ALLOW_ORIGINS must contain at least one explicit origin")

app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=["GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"],
    allow_headers=["Authorization", "Content-Type"],
)


@app.get("/health")
def health() -> dict[str, str]:
    """Проверяет, что процесс приложения запущен."""
    return {"status": "ok"}


@app.get("/health/ready")
def readiness() -> dict[str, str]:
    """Проверяет доступность критичной зависимости PostgreSQL."""
    engine = create_engine(settings.database_url, pool_pre_ping=True)
    try:
        with engine.connect() as connection:
            connection.execute(text("SELECT 1"))
    finally:
        engine.dispose()
    return {"status": "ready"}