<?php
namespace T3o\TerFe2\Solr\IndexQueue;

/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

use TYPO3\CMS\Core\Utility\GeneralUtility;
use ApacheSolrForTypo3\Solr\IndexQueue\Item;
use TYPO3\CMS\Core\Utility\VersionNumberUtility;
use T3o\TerFe2\Utility\VersionUtility;

/**
 * Class \T3o\TerFe2\Solr\IndexQueue\TerIndexer
 *
 * @author Sascha Egerer <sascha@sascha-egerer.de>
 * @author Thomas Löffler <thomas.loeffler@typo3.org>
 * @author Tomas Norre Mikkelsen <tomasnorre@gmail.com>
 */
class TerIndexer extends \ApacheSolrForTypo3\Solr\IndexQueue\Indexer
{


    /**
     * @var \TYPO3\CMS\Extbase\Object\ObjectManager
     */
    protected $objectManager;

    /**
     * @var \T3o\TerFe2\Domain\Repository\ExtensionRepository
     */
    protected $extensionRepository;


    public function __construct(array $options = array())
    {
        parent::__construct($options);

        $this->objectManager = GeneralUtility::makeInstance(\TYPO3\CMS\Extbase\Object\ObjectManager::class);
        $this->extensionRepository = $this->objectManager->get(\T3o\TerFe2\Domain\Repository\ExtensionRepository::class);

        $this->extensionRepository->setShowInsecure(false);
    }

    /**
     * Converts an item array (record) to a Solr document by mapping the
     * record's fields onto Solr document fields as configured in TypoScript.
     *
     * @param Item $item An index queue item
     * @param int $language Language Id
     * @return \Apache_Solr_Document The Solr document converted from the record
     */
    protected function itemToDocument(Item $item, $language = 0)
    {
        $document = null;

        $itemRecord = $this->getFullItemRecord($item, $language);
        if (!is_null($itemRecord)) {
            $itemIndexingConfiguration = $this->getItemTypeConfiguration(
                $item,
                $language
            );

            $document = $this->getBaseDocument($item, $itemRecord);
            $document = $this->addDocumentFieldsFromTyposcript($document, $itemIndexingConfiguration, $itemRecord);
            $document = $this->addSpecialFields($document, $itemRecord);
        }

        return $document;
    }

    /**
     * @param \Apache_Solr_Document $document
     * @param array $itemRecord
     * @return \Apache_Solr_Document
     */
    public function addSpecialFields(\Apache_Solr_Document $document, array $itemRecord)
    {
        $extension = $this->extensionRepository->findByUid($itemRecord['uid']);

        if ($extension instanceof \T3o\TerFe2\Domain\Model\Extension && $extension->getLastVersion() instanceof \T3o\TerFe2\Domain\Model\Version) {
            $typo3Dependency = $this->getDependencyVersionForPackage($extension, 'typo3');
            $document->setField('extensionMinTYPO3Version_tIntS', $typo3Dependency['minimum']);
            $document->setField('extensionMaxTYPO3Version_tIntS', $typo3Dependency['maximum']);

            $dependencyString = '';
            $dependencyString .= $typo3Dependency['minimum'] > 0 ? VersionNumberUtility::convertIntegerToVersionNumber($typo3Dependency['minimum']) : '';
            $dependencyString .= $typo3Dependency['maximum'] > 0 ? ' - ' . VersionNumberUtility::convertIntegerToVersionNumber($typo3Dependency['maximum']) : '';
            $document->setField('extensionDependency_stringS', $dependencyString ?: 'N/A');

            // is last version insecure
            $document->setField('insecure_boolS', $extension->getLastVersion()->getReviewState() === -1);
            $document->setField('outdated_boolS', $extension->getLastVersion()->getReviewState() === -2);

            // composer support
            $document->setField('supportsComposer_boolS', false);
            $document->setField('composerName_stringS', '');
            if ($extension->getComposerName()) {
                $document->setField('supportsComposer_boolS', true);
                $document->setField('composerName_stringS', $extension->getComposerName());
            }

            // does this extension supports different versions?
            // @todo: use JSON with all versions to get them
            $document->setField('supports7_boolS', false);
            $document->setField('supports8_boolS', false);
            $typo3Support = [];
            if (VersionUtility::doesExtensionSupportTypo3Version($extension, 7006000)) {
                $typo3Support[] = '7 LTS';
                $document->setField('supports7_boolS', true);
            }
            if (VersionUtility::doesExtensionSupportTypo3Version($extension, 8007000)) {
                $typo3Support[] = '8 LTS';
                $document->setField('supports8_boolS', true);
            }
            $document->setField('typo3support_stringM', $typo3Support);

            $extensionIcon = $this->getExtensionIcon($itemRecord['ext_key'], $extension->getLastVersion()->getVersionString());
            $document->setField('extensionIcon_stringS', $extensionIcon);

            // add documentation link
            /** @var \T3o\TerFe2\Service\DocumentationService $documentationService */
            $documentationService = GeneralUtility::makeInstance(\T3o\TerFe2\Service\DocumentationService::class);
            $documentationLink = $documentationService->getDocumentationLink($extension->getExtKey(), $extension->getLastVersion()->getVersionString(), true);
            $document->setField('extensionDocumentationLink_stringS', $documentationLink);

            // use external manual if given
            if ($extension->getExternalManual()) {
                $document->setField('extensionDocumentationLink_stringS', $extension->getExternalManual());
            }

            // has manual
            $document->setField('hasManual_boolS', false);
            if ($documentationLink || $extension->getExternalManual()) {
                $document->setField('hasManual_boolS', true);
            }

            // get multiple authors
            $authors = [];
            if ($extension->getLastVersion() && $extension->getLastVersion()->getAuthor()) {
                $authors = GeneralUtility::trimExplode(',', $extension->getLastVersion()->getAuthor()->getName());
                if ($extension->getLastVersion()->getAuthor()->getCompany()) {
                    // Add company name to author
                    $authors[] = $extension->getLastVersion()->getAuthor()->getCompany();
                }
            }
            $document->setField('author_textWstM', $authors);
        }

        return $document;
    }

    /**
     * get the minimum dependency of an extension for a given $relationName (extension, php version, TYPO3 version...)
     *
     * @param \T3o\TerFe2\Domain\Model\Extension $extension
     * @param string $relationName The dependency to get the version from (e.g. "typo3" to get the minimum typo3 version)
     * @return array
     */
    protected function getDependencyVersionForPackage(\T3o\TerFe2\Domain\Model\Extension $extension, $relationName)
    {
        $versions = array(
            'minimum' => 0,
            'maximum' => 0
        );

        foreach ($extension->getLastVersion()->getSoftwareRelations() as $relation) {
            if ($relation->getRelationType() === 'depends' && $relation->getRelationKey() === $relationName) {
                $versions = array(
                    'minimum' => $relation->getMinimumVersion(),
                    'maximum' => $relation->getMaximumVersion()
                );
                break;
            }
        }

        return $versions;
    }

    /**
     * get the relative path for the extension icon
     * could be png or gif
     *
     * @param $extensionKey
     * @param $extensionVersion
     * @return string
     */
    protected function getExtensionIcon($extensionKey, $extensionVersion)
    {
        $fileTypesToCheck = [
            'svg',
            'png',
            'gif'
        ];

        $iconPath = 'fileadmin/ter/';
        $icon = '';

        foreach ($fileTypesToCheck as $fileType) {
            $iconFile = $this->generateIconFileName(
                $extensionKey,
                $extensionVersion,
                $fileType
            );
            if (file_exists(PATH_site . $iconPath . $iconFile)) {
                $icon = \T3o\TerFe2\Utility\FileUtility::getRelativeUrlFromAbsolutePath($iconPath . $iconFile);
                break;
            }
        }

        return $icon;
    }

    /**
     * generate the path to an extension icon for a specific version
     *
     * @param $extension
     * @param $version
     * @param $fileType
     * @return string
     */
    protected function generateIconFileName($extension, $version, $fileType)
    {
        if (empty($extension) || empty($version) || empty($fileType)) {
            return '';
        }
        $extension = strtolower($extension);
        $fileType = strtolower(trim($fileType, '. '));
        return $extension[0] . '/' . $extension[1] . '/' . $extension . '_' . $version . '.' . $fileType;
    }
}