"""Служебные эндпоинты: /api/v1/health, /api/v1/ready, /metrics (без аутентификации)."""

from __future__ import annotations

from typing import Any

from fastapi import APIRouter
from fastapi.responses import JSONResponse, PlainTextResponse

from awg_api.deps import StateDep
from awg_api.errors import error_payload

router = APIRouter(tags=["ops"])


@router.get("/api/v1/health")
async def get_health(state: StateDep) -> dict[str, Any]:
    return state.get_health()


@router.get("/api/v1/ready")
async def get_ready(state: StateDep) -> JSONResponse:
    if state.ready:
        return JSONResponse(status_code=200, content=state.get_ready())
    checks = state.get_ready()["checks"]
    return JSONResponse(
        status_code=503,
        content=error_payload(
            "agent_unavailable", "Шлюз не готов обслуживать запросы", {"checks": checks}
        ),
    )


@router.get("/metrics", response_class=PlainTextResponse)
async def get_prometheus_metrics(state: StateDep) -> PlainTextResponse:
    return PlainTextResponse(state.prometheus_text())