<?php

namespace App\Policies;

use App\Enums\PurchasingRole;
use App\Models\Supplier;
use App\Models\User;

class SupplierPolicy
{
    public function viewAny(User $user): bool
    {
        return $user->tenant_id !== null && in_array($user->purchasing_role, [PurchasingRole::Admin, PurchasingRole::Procurement, PurchasingRole::Finance, PurchasingRole::DepartmentHead]);
    }

    public function view(User $user, Supplier $supplier): bool
    {
        return $this->viewAny($user) && $user->tenant_id === $supplier->tenant_id;
    }

    public function update(User $user, Supplier $supplier): bool
    {
        return $user->purchasing_role === PurchasingRole::Procurement && $user->tenant_id === $supplier->tenant_id;
    }

    public function viewDocuments(User $user, Supplier $supplier): bool
    {
        return $this->view($user, $supplier) && in_array($user->purchasing_role, [PurchasingRole::Admin, PurchasingRole::Procurement, PurchasingRole::Finance]);
    }
}