<?php
/**
 * Created by PhpStorm.
 * User: thomas
 * Date: 16.04.18
 * Time: 14:00
 */

namespace PSC\Library\Calc\Calc;

use PSC\Library\Calc\Article;
use PSC\Library\Calc\Engine;
use PSC\Library\Calc\General\Type\Edge;
use PSC\Library\Calc\General\Type\EdgeCollection;
use PSC\Library\Calc\General\Type\EdgeCollectionContainer;
use PSC\Library\Calc\Option\Type\Base;
use PSC\Library\Calc\Option\Type\PaperDbSelect;
use PSC\Library\Calc\Option\Type\Select;
use PSC\Library\Calc\Tests\Mock\Paper;

class Calc
{
    /** @var Engine */
    protected $engine = null;

    /** @var Article */
    protected $article = null;

    protected $storageFormulas = [];

    protected $storageCalcValues = [];

    protected $formelCalc = null;

    /**
     * Calc constructor.
     * @param Engine $engine
     * @param Article $article
     */
    public function __construct($engine, $article)
    {
        $this->engine = $engine;
        $this->article = $article;
        $this->formelCalc = new Formel($engine, $article);
    }

    public function calc()
    {
        $price = 0;

        /** @var Base $option */
        foreach($this->article->getOptions() as $option) {

            if($option instanceof PaperDbSelect) {
                /** @var Select\Opt $opt */
                foreach($option->getOptions() as $opt) {
                    if ($opt->isValid() && $opt->isSelected()) {
                        /** @var Paper $paper */
                        $paper = $this->engine->getPaperRepository()->findOneBy(['artNr' => $opt->getId()]);
                        $this->engine->setVariable($option->getId().'_digital_fix', $paper->getDigitalFix());
                        $this->engine->setVariable($option->getId().'_digital_var', $paper->getDigitalVar());
                        $this->engine->setVariable($option->getId().'_value', $paper->getPreis());
                        $this->engine->setVariable($option->getId().'_volume', $paper->getVolume());

                    }
                }

            }elseif($option instanceof Select) {
                /** @var Select\Opt $opt */
                foreach($option->getOptions() as $opt) {
                    if($opt->isValid() && $opt->isSelected()) {
                        $price = $this->parseEdgeCollection($price, $option, $opt->getEdgesCollectionContainer());
                    }
                }
            }

            $price = $this->parseEdgeCollection($price, $option, $option->getEdgesCollectionContainer());
        }

        return $price;
    }

    /**
     * @param $price
     * @param Base $option
     * @param EdgeCollectionContainer $container
     * @return int
     */
    private function parseEdgeCollection($price, $option, EdgeCollectionContainer $container)
    {

        $calcValue1 = 0;
        $calcValue2 = 0;
        $calcValueAccount1 = 0;
        $calcValueAccount2 = 0;

        /** @var EdgeCollection $collection */
        foreach($container as $collection) {
            if($collection->getName() == "opt") continue;
            if($collection->getFormel() != "") {
                $formel = $this->formelCalc->parse($collection->getFormel());
                eval('$var = ' . $formel . ';');
            }else{
                $var = $this->engine->getVariables()[$collection->getName()];
            }

            /** @var Edge $edge */
            foreach($collection as $edge) {

                if($edge->isValid($var)) {

                    if($edge->getPauschale() != 0) {
                        eval('$price += ' . $edge->getPauschale() . ';');
                    }

                    if($edge->getPreis() != 0) {
                        eval('$price += ' . ($edge->getPreis()*$var) . ';');
                    }

                    if($edge->getCalcValue() != "") {
                        $cv = $this->formelCalc->parse($edge->getCalcValue());
                        eval('$cv = ' . $cv . ';');
                        $this->engine->addCalcVariable($option->getId() . '_' . $collection->getName(), $cv);
                    }

                    if($edge->getFormel() != "") {
                        $formel = $this->formelCalc->parse($edge->getFormel());
                        if ($formel != "" && $option->getId() != 'weight' && !$option->isAjaxExport()) {
                            $p = 0;

                            eval('@$p = ' . $formel . ';');
                            if($p > 0) {
                                $price += $p;
                            }

                            $this->engine->setVariable('price', $price);
                        }
                    }
                }
            }
        }

        return $price;
    }

}