<?php

namespace App\Service;

use League\Csv\Reader;
use League\Csv\Statement;
use Zend\Config\Config;
use Zend\Http\Client;

class JcatInfoCollectorService
{
    /**
     * @var Config
     */
    private $config;

    /**
     * @var Client
     */
    private $httpClient;


    /**
     * JiraClientService constructor.
     * @param Client $client
     * @param Config $config
     */
    public function __construct(Client $client, Config $config)
    {
        $this->httpClient = $client;
        $this->config = $config;
    }

    public function getTrFlowErrors()
    {
        /** @var Config $kanbanBoardUriParams */
        $trFlowUri = $this->config->get('url.jcatTrFlow');

        $response = $this->httpClient
            ->setUri($trFlowUri)
            ->send();

        if (!$response->isSuccess()) {
            throw new \UnexpectedValueException("Bad JCAT result", $response->getStatusCode());
        }

        return $this->parseFlowHtmlResult($response->getBody());
    }

    /**
     * @param string $html
     * @return array
     */
    private function parseFlowHtmlResult(string $html)
    {
        $teamMembers = $this->config->get('team.members')->toArray();
        $xmlErrorHandling = libxml_use_internal_errors(TRUE);
        $domDocument = new \DOMDocument();
        $domDocument->loadHTML($html);
        libxml_clear_errors();
        libxml_use_internal_errors($xmlErrorHandling);

        $documentXpath = new \DOMXPath($domDocument);
        /** @var \DOMNodeList $elements */
        $elements = $documentXpath->query('//tr/td[1]');

        $result = [];
        /** @var \DOMElement $element */
        foreach ($elements as $element) {
            /** @var \DOMNodeList $ownerElements */
            $ownerElements = $documentXpath->query('./td[6]', $element->parentNode);
            $owner = strtolower(trim($ownerElements->item(0)->nodeValue));
            if (in_array($owner, $teamMembers)) {
                $result[] = trim($element->nodeValue);
            }
        }

        $errorsCounted = array_count_values($result);

        return array_map(function($type, $count) {
            return [
                'label' => $type,
                'value' => $count,
            ];
        }, array_keys($errorsCounted), $errorsCounted);
    }
}