"""
API Dependencies — Shared dependency injection for all routes.

Auth is not here: the owner gate lives in `auth.py` (`get_current_owner` /
`OwnerUser`), applied as a router-level dependency in main.py.
"""

from fastapi import HTTPException, Request

from core.gateway import AIPSTNGateway


def get_gateway(request: Request) -> AIPSTNGateway:
    """Get the gateway instance from app state."""
    gateway = getattr(request.app.state, "gateway", None)
    if gateway is None:
        raise HTTPException(status_code=503, detail="Gateway not initialized")
    return gateway


def get_routing_service(request: Request):
    """Get the routing service from app state."""
    routing = getattr(request.app.state, "routing_service", None)
    if routing is None:
        raise HTTPException(status_code=503, detail="Routing service not ready")
    return routing