<?php
namespace SvedenParser\PriemParser;

use SvedenParser\Color;
use SvedenParser\Parser;
use SvedenParser\Printer;

final class PriemParser extends Parser
{
    private const TEMPLATE = '//tr[@itemprop="eduPriem"]//';
     
    private const FIELDS = [
        "eduCode" => "td",
        "eduName" => "td",
        "eduLevel" => "td",
        "eduForm" => "td",
        "numberBF" => "td",
        "numberBR" => "td",
        "numberBM" => "td",
        "numberP" => "td",
        "score" => "td"
    ];
    public function getDataTable(): array
    {
        if (!$this->xpath) return [];
        
        $data = $this->parse();
        $records = [];
        if (!$data) return [];

        $equal = $data['eduName']->length;
        foreach ($data as $field) {
            if ($field->length == 0) {
                return [];
            }
            if ($field->length != $equal) {
                return [];
            }
        }
        for ($i = 0; $i < $data['eduCode']->length; $i++) { 
            try {
                $contingentRow = new PriemRow(
                    $data['eduCode']->item($i)->textContent,
                    $data['eduName']->item($i)->textContent,
                    $data['eduLevel']->item($i)->textContent,
                    $data['eduForm']->item($i)->textContent,
                    $data['score']->item($i)->textContent,
                    [
                        $data['numberBF']->item($i)->textContent,
                        $data['numberBR']->item($i)->textContent,
                        $data['numberBM']->item($i)->textContent,
                        $data['numberP']->item($i)->textContent,
                    ],
                );
                $records[] = $contingentRow->getData();    
            } catch (\Exception $e) {
                Printer::println($e->getMessage(), Color::RED);
            }
            
        }
        return $records;
    }
    protected function parse(): array
    {
        $data = [];
        foreach (self::FIELDS as $field => $tag) {
            if (!is_array($tag)) {
                $data[$field] = $this->xpath->query(
                    self::TEMPLATE . $tag . "[@itemprop=\"$field\"]"
                );
            } else {
                // $th = $this->xpath->query(
                //     self::TEMPLATE . $tag[0] . "[@itemprop=\"$field\"]"
                // );
                // $td = $this->xpath->query(
                //     self::TEMPLATE . $tag[1] . "[@itemprop=\"$field\"]"
                // );
                // $data[$field] = $th->length > $td->length ? $th : $td;
            }
        }
        return $data;
    }

    public function getLink(): string
    {
        $needle = "Информация о результатах приёма";
        $data = $this->dom->getElementsByTagName('a');
        for ($i = 0; $i < $data->length; $i++) {
            $haystack = $data->item($i)->textContent;
            $isInformationOfContingent = strpos($haystack, $needle) !== false;
            if ($isInformationOfContingent) {
                return $data->item($i)->getAttribute('href');
            }
        }
        return '';
    }
}