"""Microsoft Teams 频道路由配置。

resolveMSTeamsRouteConfig，id + name + slug 候选键匹配，
wildcard fallback 支持。
"""

from __future__ import annotations

from typing import Any


def resolve_route_config(
    config: dict[str, Any],
    team_id: str = "",
    team_name: str = "",
    channel_id: str = "",
    channel_name: str = "",
) -> dict[str, Any]:
    routes = config.get("routes", []) or []
    if not routes:
        return config

    for route in routes:
        if _match_route(route, team_id, team_name, channel_id, channel_name):
            merged = {**config, **route.get("config", {})}
            return merged

    wildcard = _find_wildcard_route(routes)
    if wildcard:
        return {**config, **wildcard.get("config", {})}

    return config


def _match_route(
    route: dict[str, Any],
    team_id: str,
    team_name: str,
    channel_id: str,
    channel_name: str,
) -> bool:
    match_team = route.get("match_team", {}) or {}
    match_channel = route.get("match_channel", {}) or {}

    team_match = _match_candidate(
        match_team,
        {"id": team_id, "name": team_name},
    )
    if match_team and not team_match:
        return False

    channel_match = _match_candidate(
        match_channel,
        {"id": channel_id, "name": channel_name},
    )
    if match_channel and not channel_match:
        return False

    return True


def _match_candidate(
    matcher: dict[str, str],
    candidate: dict[str, str],
) -> bool:
    if not matcher:
        return True
    if matcher.get("id") and matcher["id"] != candidate.get("id"):
        return False
    if matcher.get("name") and matcher["name"].lower() != (candidate.get("name", "")).lower():
        return False
    slug = matcher.get("slug", "")
    if slug:
        name_slug = (candidate.get("name", "")).lower().replace(" ", "-")
        if slug != name_slug:
            return False
    return True


def _find_wildcard_route(
    routes: list[dict[str, Any]],
) -> dict[str, Any] | None:
    for route in routes:
        if route.get("match_team", {}).get("id") == "*":
            return route
    return None