import logging
from contextlib import asynccontextmanager

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

from app.db import check_db, run_migrations
from app.routers import filaments, pricing, print_jobs, printers, todos
from app.routers import ui

logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s %(levelname)-8s %(name)s: %(message)s",
)
logger = logging.getLogger("pops")


@asynccontextmanager
async def lifespan(app: FastAPI):
    ok, msg = check_db()
    if ok:
        logger.info("Database connection OK")
        try:
            run_migrations()
        except Exception:
            logger.exception("Migration failed — schema may be out of date")
    else:
        logger.warning("Database unreachable: %s", msg)
    yield


app = FastAPI(title="POPS", lifespan=lifespan)


@app.exception_handler(Exception)
async def unhandled_exception(request: Request, exc: Exception):
    logger.exception("Unhandled error on %s %s", request.method, request.url)
    return JSONResponse(status_code=500, content={"detail": str(exc)})


# JSON API
app.include_router(printers.router, prefix="/api")
app.include_router(filaments.router, prefix="/api")
app.include_router(print_jobs.router, prefix="/api")
app.include_router(todos.router, prefix="/api")
app.include_router(pricing.router, prefix="/api")

# Web UI
app.include_router(ui.router)


@app.get("/health")
def health():
    ok, msg = check_db()
    return {
        "status": "ok" if ok else "degraded",
        "db": "connected" if ok else "unreachable",
        "detail": msg,
    }