package handlers

import "net/http"

// newInvalidateMembershipsHandler returns the handler for
// `POST /api/v1/internal/games/{game_id}/memberships/invalidate`. The
// underlying cache invalidation is a fire-and-forget local operation,
// so the handler always responds with `204 No Content` once the path
// parameter validates.
func newInvalidateMembershipsHandler(deps Dependencies) http.HandlerFunc {
	return func(writer http.ResponseWriter, request *http.Request) {
		if deps.InvalidateMemberships == nil {
			writeError(writer, http.StatusInternalServerError, errorCodeInternal, "membership cache invalidator is not wired")
			return
		}

		gameID, ok := extractGameID(writer, request)
		if !ok {
			return
		}

		deps.InvalidateMemberships.Invalidate(gameID)
		writeNoContent(writer)
	}
}