"""Feature registry and dispatch helpers for scene assembly phases."""

from collections import namedtuple


FeatureHandler = namedtuple("FeatureHandler", ("name", "matches", "handle"))


def dispatch_ways(ways, projector, handlers):
    """Dispatch OSM ways to the first matching handler, preserving order."""
    for way in ways:
        coords = way["coords"]
        if not any(projector.inside(c) for c in coords):
            continue
        ring = projector.ring(coords)
        tag = way["tags"]
        for handler in handlers:
            if handler.matches(way, tag, ring):
                handler.handle(way, tag, ring)
                break