osb/app/Models/Policies/InvoicePolicy.php

<?php

namespace App\Models\Policies;

use Illuminate\Auth\Access\HandlesAuthorization;

use App\Models\{Invoice,User};

class InvoicePolicy
{
	use HandlesAuthorization;

	/**
	 * Determine whether the user can view the service.
	 *
	 * @param User    $uo
	 * @param Invoice $io
	 * @return bool
	 */
	public function view(User $uo,Invoice $io): bool
	{
		// If this is a service for an account managed by a user.
		return ($uo->invoices->pluck('id')->search($io->id) !== FALSE)

			// The user is the wholesaler
			OR $uo->isWholesaler()

			// The user is the reseller
			OR  $uo->isReseller();
	}

	/**
	 * Determine whether the user can create services.
	 *
	 * @param User $uo
	 * @return bool
	 */
	public function create(User $uo): bool
	{
		return $uo->isWholesaler();
	}

	/**
	 * Determine whether the user can update the service.
	 *
	 * @param User    $uo
	 * @param Invoice $io
	 * @return bool
	 */
	public function update(User $uo,Invoice $io): bool
	{
		return $uo->isWholesaler();
	}

	/**
	 * Determine whether the user can delete the service.
	 *
	 * @param User    $uo
	 * @param Invoice $io
	 * @return bool
	 */
	public function delete(User $uo,Invoice $io): bool
	{
		return $uo->isWholesaler();
	}

	/**
	 * Determine whether the user can restore the service.
	 *
	 * @param User    $uo
	 * @param Invoice $io
	 * @return bool
	 */
	public function restore(User $uo,Invoice $io): bool
	{
		return $uo->isWholesaler();
	}

	/**
	 * Determine whether the user can permanently delete the service.
	 *
	 * @param User    $uo
	 * @param Invoice $io
	 * @return bool
	 */
	public function forceDelete(User $uo,Invoice $io): bool
	{
		return $uo->isWholesaler();
	}
}