Ability to return all checks of a Policy as an array

[rayronvictor]

Sometimes we need to return all policy checks as an array (e.g. Jetstream Inertia TeamController https://github.com/laravel/jetstream/blob/2.x/src/Http/Controllers/Inertia/TeamController.php#L38)

return Jetstream::inertia()->render($request, 'Teams/Show', [
            // ...
            'permissions' => [
                'canAddTeamMembers' => Gate::check('addTeamMember', $team),
                'canDeleteTeam' => Gate::check('delete', $team),
                'canRemoveTeamMembers' => Gate::check('removeTeamMember', $team),
                'canUpdateTeam' => Gate::check('update', $team),
            ],
        ]);

But what if you could call Gate::policyChecks($team)?

return Jetstream::inertia()->render($request, 'Teams/Show', [
            // ...
            'permissions' => Gate::policyChecks($team),
        ]);

My suggestion of implementation:

public function policyChecks($arguments = []): Collection
{
    $arguments = Arr::wrap($arguments);

    if (isset($arguments[0])) {
        $policy = Gate::getPolicyFor($arguments[0]);
        return collect($this->getPolicyDirectMethods($policy))
            ->diff(['before'])
            ->flatMap(fn ($method) => [ $method => Gate::check($method, $arguments) ]);
    }

    return collect();
}

protected function getPolicyDirectMethods($policy): array
{
    $methods = get_class_methods($policy);

    $traitsMethods = [];
    foreach (class_uses($policy) as $trait) {
        $traitsMethods = array_merge($traitsMethods, get_class_methods($trait));
    }

    $methods = array_diff($methods, array_unique($traitsMethods));

    if($parent = get_parent_class($policy)) {
        $methods = array_diff($methods, get_class_methods($parent));
    }

    return $methods;
}