"""Infrastruktur: Seekabel, Kernkraftwerke, Militaerbasen."""
import logging, time, httpx
from fastapi import APIRouter

logger = logging.getLogger("globe.infra")
router = APIRouter()
_cache = {}

async def _get_cached(key, url, ttl=86400, parser=None):
    if key in _cache and time.time() - _cache[key][0] < ttl:
        return _cache[key][1]
    try:
        async with httpx.AsyncClient(timeout=30) as client:
            r = await client.get(url)
            r.raise_for_status()
            data = parser(r) if parser else r.json()
            _cache[key] = (time.time(), data)
            return data
    except Exception as e:
        logger.warning(f"{key}: {e}")
        return _cache.get(key, (0, {}))[1]

@router.get("/submarine-cables")
async def get_cables():
    return await _get_cached("cables",
        "https://www.submarinecablemap.com/api/v3/cable/cable-geo.json", 86400)

@router.get("/nuclear-plants")
async def get_nuclear():
    data = await _get_cached("nuclear",
        "https://overpass-api.de/api/interpreter?data=%5Bout%3Ajson%5D%3Bnode%5B%22generator%3Asource%22%3D%22nuclear%22%5D%3Bout%3B",
        86400)
    plants = []
    for e in (data.get("elements") or []):
        name = e.get("tags", {}).get("name", "Kernkraftwerk")
        plants.append({"name": name, "lat": e["lat"], "lon": e["lon"]})
    return {"plants": plants, "total": len(plants)}

@router.get("/military-bases")
async def get_bases():
    data = await _get_cached("bases",
        "https://overpass-api.de/api/interpreter?data=%5Bout%3Ajson%5D%3Bnode%5B%22military%22%3D%22airfield%22%5D%3Bout%3B",
        86400)
    bases = []
    for e in (data.get("elements") or []):
        name = e.get("tags", {}).get("name", "Militaerbasis")
        bases.append({"name": name, "lat": e["lat"], "lon": e["lon"]})
    return {"bases": bases, "total": len(bases)}

@router.get("/iss")
async def get_iss():
    return await _get_cached("iss", "http://api.open-notify.org/iss-now.json", 5)