<?php namespace KommaApp\Kms\Core\Sections;

use Illuminate\Support\MessageBag;

/**
 *
 *
 * @author      Komma <info@komma.pro>
 * @copyright   (c) 2012-2016, Komma Mediadesign
 */
class KmsSectionTab
{

    protected $name;
    protected $slug;

    protected $items = [];
    protected $subTabs = [];

    public function __construct($name, $slug)
    {
        $this->name = $name;
        $this->slug = $slug;
    }

    public function getName()
    {
        return $this->name;
    }

    public function getSlug()
    {
        return $this->slug;
    }

    public function addItem(&$item, $subTabSlug = null, $subSubTabSlug = null)
    {
        if ($subSubTabSlug) {
            $tab = $this->getOrCreateSubTab($subTabSlug);

            $subTab = $tab->getOrCreateSubTab($subSubTabSlug);
            $subTab->addItem($item, $subTabSlug);
            return $item;
        }
        if ($subTabSlug) {
            $tab = $this->getOrCreateSubTab($subTabSlug);
            $tab->addItem($item, $subTabSlug);
            return $item;
        }

        return $this->items[] = $item;
    }

    public function getItems()
    {
        $items = [];
        foreach ($this->items as $item) {
            if ($item->checkIfUserIsEligible(\Auth::user()->get()))
                $items[] = $item;
        }
        return $items;
    }

    public function getTabs()
    {
        return $this->subTabs;
    }

    public function hasTabs()
    {
        return (count($this->subTabs) > 0);
    }

    public function hasErrors(MessageBag $errors)
    {
        // Check if items are in message bag
        foreach ($this->getItems() as $item) {
            if ($errors->get($item->getKey())) return true;
        }

        //Check if items in sub tabs are in message bag
        foreach ($this->subTabs as $subTab) {
            foreach ($subTab->getItems() as $subItem) {
                if ($errors->get($subItem->getKey())) return true;
            }
        }

        return false;
    }

    protected function getOrCreateSubTab($name)
    {
        if (!$tab = $this->getSubTabBySlug($name)) {
            return $this->subTabs[] = new KmsSectionSubTab($name, $name);
        }

        return $tab;
    }

    protected function getSubTabBySlug($slug)
    {
        foreach ($this->subTabs as $tab) {
            if ($tab->getSlug() == $slug) return $tab;
        }
        return null;
    }

}