<?php

namespace bff\modules\svc;

use bff\utils\func;

/**
 * Svc: Service packs extension
 * Can extend ServiceManager
 * @mixin ServiceManager
 * @copyright Tamaranga
 */
trait HasServicePacks
{
    /**
     * Service pack class
     * @var string
     */
    protected $packClass = '';

    /**
     * Set packs implementation
     * @param string $className pack implementation
     * @return mixed|void
     */
    public function setPackClass(string $className)
    {
        $this->packClass = $className;
    }

    /**
     * Service pack key generator
     * @return string
     */
    public function generateServicePackKey(): string
    {
        // Unique service key in group
        return func::generatorLetters(10, 'abcdefghijklmnopqrstuvwxyz', function ($key) {
            return $this->getServiceModel()
                ->where('group_key', '=', $this->getGroupKey())
                ->where('service_key', '=', $key)
                ->exists();
        });
    }

    /**
     * Get packable services list
     * @return Service[]
     */
    public function getPackableServices()
    {
        $list = [];
        foreach ($this->services as $serviceKey => $serviceData) {
            $service = $this->getService($serviceKey);
            if ($service && $service->isPackable()) {
                $service->setSettings($serviceData);
                $list[$serviceKey] = $service;
            }
        }

        return $list;
    }
}