<?php

namespace bff\modules\geo\models;

use Geo;
use bff\db\illuminate\Model;
use bff\db\illuminate\NestedSets;
use bff\db\illuminate\LangsColumns;

/**
 * Geo: region model
 * @copyright Tamaranga
 */
class Region extends Model
{
    use LangsColumns;
    use NestedSets;

    protected $table = Geo::TABLE_REGIONS;

    public $timestamps = false;

    protected $casts = [
        'declension' => 'json',
        'extra' => 'json',
    ];

    protected static function booted()
    {
        parent::booted();

        static::creating(function ($self) {
            /** @var $self static */
            if (empty($self->pid)) {
                $self->pid = $self->nodeGetRootNodeID();
                if (! empty($self->city)) {
                    $self->city = 0;
                }
            }
            if (! is_array($self->extra)) {
                $self->extra = [];
            }
        });
    }

    /**
     * Region districts
     * @return \Illuminate\Database\Eloquent\Relations\HasMany
     */
    public function districts()
    {
        return $this->hasMany($this->modelClass('District', 'Geo'), 'city_id', 'id');
    }

    /**
     * Region metro branches
     * @return \Illuminate\Database\Eloquent\Relations\HasMany
     */
    public function metroBranches()
    {
        return $this->hasMany($this->modelClass('MetroBranch', 'Geo'), 'city_id', 'id');
    }

    /**
     * Region metro branches
     * @return \Illuminate\Database\Eloquent\Relations\HasMany
     */
    public function metroStations()
    {
        return $this->hasMany($this->modelClass('MetroStation', 'Geo'), 'city_id', 'id');
    }

    public function langColumns()
    {
        return ['title'];
    }
}