from __future__ import annotations

from fastapi import APIRouter, Depends

from apps.api.auth import require_auth
from packages.config import get_settings
from packages.db import Repository
from packages.domain import LEVERAGE_FORMULA_VERSION

router = APIRouter(tags=["meta"], dependencies=[Depends(require_auth)])


@router.get("/meta/latest")
def latest() -> dict:
    s = get_settings()
    repo = Repository(s.db_path)
    try:
        hb = repo.get_heartbeat()
        by_side = repo.latest_quotes_by_side()
        return {
            "formula_version": LEVERAGE_FORMULA_VERSION,
            "leverage_def": "index_px / ask",
            "timezone": s.tz,
            "underlying": s.underlying,
            "min_option_leverage": s.min_option_leverage,
            "heartbeat": {
                "last_ok_ts_ms": hb.get("last_ok_ts_ms"),
                "last_error": hb.get("last_error"),
                "consecutive_failures": hb.get("consecutive_failures"),
                "meta": hb.get("meta"),
            },
            "call": by_side.get("C"),
            "put": by_side.get("P"),
        }
    finally:
        repo.close()