"""Denya OneCare — FastAPI application entry point."""

from __future__ import annotations

import logging
from contextlib import asynccontextmanager
from pathlib import Path

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles

from app.core.config import settings
from app.core.database import Base, async_session_factory, engine
from app.routers import auth, health, pages, tickets, whatsapp
from app.services.seed import seed_categories, seed_units, seed_users

logger = logging.getLogger(__name__)


@asynccontextmanager
async def lifespan(app: FastAPI):
    """Initialise database and seed data on startup."""
    logger.info("Starting Denya OneCare …")
    async with engine.begin() as conn:
        await conn.run_sync(Base.metadata.create_all)
    async with async_session_factory() as session:
        await seed_users(session)
        await session.commit()
        await seed_units(session, json_path=str(settings.BASE_DIR / "apartment_mapping.json"))
        await session.commit()
        await seed_categories(session)
        await session.commit()
    yield
    await engine.dispose()
    logger.info("Denya OneCare stopped.")


app = FastAPI(
    title=settings.APP_NAME,
    version="0.1.0",
    lifespan=lifespan,
)

# ── CORS ─────────────────────────────────────────────────────────────
app.add_middleware(
    CORSMiddleware,
    allow_origins=settings.CORS_ORIGINS.split(",") if settings.CORS_ORIGINS != "*" else ["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# ── Static files (uploads) ───────────────────────────────────────────
uploads_dir = Path(settings.BASE_DIR / "uploads")
uploads_dir.mkdir(parents=True, exist_ok=True)
app.mount("/uploads", StaticFiles(directory=str(uploads_dir)), name="uploads")

# ── Routers ──────────────────────────────────────────────────────────
app.include_router(health.router)
app.include_router(auth.router)
app.include_router(whatsapp.router)
app.include_router(tickets.router)
app.include_router(pages.router)