from fastapi import APIRouter, Request
from fastapi.responses import JSONResponse
from fastapi.templating import Jinja2Templates

from app.services import diagnostics

router = APIRouter(tags=["health"])
templates = Jinja2Templates(directory="app/templates")


@router.get("/health")
async def health():
    """Unauthenticated JSON health check. 200 when everything critical is
    configured, 503 when something critical is missing so an uptime monitor
    notices. The body always lists every check either way."""
    result = diagnostics.summary()
    status_code = 200 if result["status"] == "ok" else 503
    return JSONResponse(result, status_code=status_code)


@router.get("/setup")
async def setup(request: Request):
    """Unauthenticated, human-readable version of the same checks, so a fresh
    operator can see what still needs configuring before login works."""
    result = diagnostics.summary()
    return templates.TemplateResponse(
        request,
        "setup.html",
        {"status": result["status"], "checks": result["checks"]},
    )