"""Liveness and readiness endpoints (section 24)."""

from __future__ import annotations

from fastapi import APIRouter

from app.core.config import get_settings
from app.core.database import database_is_ready
from app.core.redis import redis_is_ready
from app.schemas.health import DependencyStatus, HealthOut, ReadyOut

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


@router.get("/health", response_model=HealthOut)
async def health() -> HealthOut:
    """Liveness probe: process is up and able to respond. No dependency
    checks — that's /ready."""

    return HealthOut(status="ok")


@router.get("/ready", response_model=ReadyOut)
async def ready() -> ReadyOut:
    settings = get_settings()

    db_ok = await database_is_ready()
    redis_ok = await redis_is_ready()

    dependencies = [
        DependencyStatus(name="postgresql", ok=db_ok, required=True),
        DependencyStatus(name="redis", ok=redis_ok, required=settings.REDIS_REQUIRED),
    ]

    is_ready = db_ok and (redis_ok or not settings.REDIS_REQUIRED)
    return ReadyOut(status="ready" if is_ready else "not_ready", dependencies=dependencies)