<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Role extends Model
{
    protected $fillable = ['name', 'slug', 'description', 'is_protected'];

    /**
     * The permissions that belong to the role.
     */
    public function permissions()
    {
        return $this->belongsToMany(Permission::class);
    }

    /**
     * The users that belong to the role.
     */
    public function users()
    {
        return $this->belongsToMany(User::class);
    }

    /**
     * Boot the model.
     */
    protected static function boot()
    {
        parent::boot();

        static::deleting(function ($role) {
            if ($role->is_protected) {
                throw new \Exception("The protected '{$role->name}' role cannot be deleted.");
            }
        });

        static::updating(function ($role) {
            if ($role->is_protected && $role->isDirty('is_protected')) {
                throw new \Exception("The protection status of '{$role->name}' cannot be modified.");
            }
        });
    }
}