<?php

namespace App\Models\Permission;

use Dipper\Foundation\Core\Model;
use Illuminate\Support\Collection;
use App\Exceptions\NotExistException;
use App\Models\Permission\Traits\HasRoles;
use Dipper\Foundation\Nestedset\NodeTrait;
use App\Domains\Permission\Services\PermissionService;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use App\Models\Permission\Traits\RefreshesPermissionCache;

/**
 * 权限
 */
class Permission extends Model
{
    use NodeTrait, HasRoles, RefreshesPermissionCache;

    protected $table = 'permissions';

    protected $fillable = ['id', 'parent_id', 'name', 'title', 'description', 'path', 'icon', 'type', 'status', 'open','height','width', 'displayorder'];

    /**
     * Get the hidden attributes for the model.
     *
     * @return array
     */
    public function getHidden()
    {
        return [$this->getLftName(), $this->getRgtName()];
    }

    /**
     * A permission can be applied to roles.
     */
    public function roles(): BelongsToMany
    {
        return $this->belongsToMany(Role::class, 'role_has_permissions');
    }

    /**
     * Find a permission by its name.
     *
     * @param string $name
     *
     * @throws NotExistException
     *
     * @return Permission
     */
    public static function findByName(string $name): Permission
    {
        $permission = static::getPermissions()->filter(function ($permission) use ($name) {
            return $permission->name === $name;
        })->first();

        if (!$permission) {
            throw new NotExistException('权限不存在');
        }

        return $permission;
    }


    /**
    * Find a permission by its id.
    *
    * @param int $id
    *
    * @throws NotExistException
    *
    * @return Permission
    */
    public static function findById(int $id): Permission
    {
        $permission = static::getPermissions()->filter(function ($permission) use ($id) {
            return $permission->id === $id;
        })->first();

        if (! $permission) {
            throw new NotExistException('权限不存在');
        }

        return $permission;
    }

    /**
     * Get the current cached permissions.
     */
    protected static function getPermissions(): Collection
    {
        return app(PermissionService::class)->getPermissions();
    }
}