<?php
namespace T3o\TerFe2\Domain\Model;

/*
 * 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\Extbase\Persistence\ObjectStorage;

/**
 * Extension container
 */
class Extension extends \TYPO3\CMS\Extbase\DomainObject\AbstractEntity
{
    /**
     * Extension key
     *
     * @var string
     */
    protected $extKey = '';

    /**
     * Link to forge project
     *
     * @var string
     * @validate \T3o\TerFe2\Validation\Validator\UrlValidator
     */
    protected $forgeLink = '';

    /**
     * Tags
     *
     * @var \TYPO3\CMS\Extbase\Persistence\ObjectStorage<\T3o\TerFe2\Domain\Model\Tag>
     */
    protected $tags;

    /**
     * Versions
     *
     * @var \TYPO3\CMS\Extbase\Persistence\ObjectStorage<\T3o\TerFe2\Domain\Model\Version>
     * @lazy
     */
    protected $versions;

    /**
     * Last version
     *
     * @var \T3o\TerFe2\Domain\Model\Version
     */
    protected $lastVersion;

    /**
     * Frontend user
     *
     * @var string
     */
    protected $frontendUser = '';

    /**
     * Sum of all version downloads
     *
     * @var int
     */
    protected $downloads = 0;

    /**
     * Creation date
     *
     * @var \DateTime
     */
    protected $crdate;

    /**
     * Link to an external repository
     *
     * @var string
     * @validate \T3o\TerFe2\Validation\Validator\UrlValidator
     */
    protected $repositoryUrl = '';

    /**
     * Link to an external manual
     *
     * @var string
     * @validate \T3o\TerFe2\Validation\Validator\UrlValidator
     */
    protected $externalManual = '';

    /**
     * Link to paypal donation
     *
     * @var string
     * @validate \T3o\TerFe2\Validation\Validator\UrlValidator
     */
    protected $paypalUrl = '';

    /**
     * @var \DateTime
     */
    protected $expire;

    /**
     * Composer name of extension on packagist.org
     *
     * @var string
     * @validate \T3o\TerFe2\Validation\Validator\ComposerNameValidator
     */
    protected $composerName = '';

    /**
     * @var int
     */
    protected $likes = 0;

    /**
     * Initialize all ObjectStorage instances.
     */
    public function __construct()
    {
        $this->tags = new ObjectStorage();
        $this->versions = new ObjectStorage();
    }

    /**
     * Setter for extKey
     *
     * @param string $extKey extKey
     */
    public function setExtKey(string $extKey)
    {
        $this->extKey = $extKey;
    }

    /**
     * Getter for extKey
     *
     * @return string extKey
     */
    public function getExtKey(): string
    {
        return $this->extKey;
    }

    /**
     * Setter for forgeLink
     *
     * @param string $forgeLink forgeLink
     */
    public function setForgeLink(string $forgeLink)
    {
        $this->forgeLink = $forgeLink;
    }

    /**
     * Getter for forgeLink
     *
     * @return string forgeLink
     */
    public function getForgeLink(): string
    {
        return $this->forgeLink;
    }

    /**
     * Setter for crdate
     *
     * @param \DateTime $crdate creation date
     */
    public function setCrdate(\DateTime $crdate)
    {
        $this->crdate = $crdate;
    }

    /**
     * Getter for crdate
     *
     * @return \DateTime crdate
     */
    public function getCrdate(): \DateTime
    {
        return $this->crdate;
    }

    /**
     * Getter for tags
     *
     * @return \TYPO3\CMS\Extbase\Persistence\ObjectStorage<\T3o\TerFe2\Domain\Model\Tag> Tags
     */
    public function getTags(): ObjectStorage
    {
        return $this->tags;
    }

    /**
     * Adds a Tag
     *
     * @param \T3o\TerFe2\Domain\Model\Tag $tag The tag to be added
     */
    public function addTag(Tag $tag)
    {
        $this->tags->attach($tag);
    }

    /**
     * Removes a Tag
     *
     * @param \T3o\TerFe2\Domain\Model\Tag $tag The tag to be removed
     */
    public function removeTag(Tag $tag)
    {
        $this->tags->detach($tag);
    }

    /**
     * Getter for versions
     *
     * @return Version[]|\TYPO3\CMS\Extbase\Persistence\ObjectStorage<\T3o\TerFe2\Domain\Model\Version>
     */
    public function getVersions(): ObjectStorage
    {
        return $this->versions;
    }

    /**
     * Get versions reverse sorted by version number
     *
     * @return array Versions
     */
    public function getReverseVersionsWithPositiveReviewsByVersionNumber(): array
    {
        $versions = [];

        foreach ($this->versions as $version) {
            if ($version->getReviewState() > -1) {
                $versions[$version->getVersionNumber()] = $version;
            }
        }

        krsort($versions);

        return $versions;
    }

    /**
     * Get versions reverse sorted by version number
     *
     * @param int $limit
     * @param bool $reverseAfterSlice
     * @return array|\T3o\TerFe2\Domain\Model\Version[] Versions
     */
    public function getReverseVersionsByVersionNumber(int $limit = 0, bool $reverseAfterSlice = true): array
    {
        $versions = [];

        foreach ($this->versions as $version) {
            $versions[$version->getVersionNumber()] = $version;
        }
        krsort($versions);
        if ($limit > 0) {
            $versions = array_slice($versions, 0, $limit, true);
            if ($reverseAfterSlice) {
                $versions = array_reverse($versions);
            }
        }

        return $versions;
    }

    /**
     * Returns the count of versions
     *
     * @return int Version count
     */
    public function getVersionCount(): int
    {
        return !empty($this->versions) ? count($this->versions) : 0;
    }

    /**
     * Adds a Version
     *
     * @param \T3o\TerFe2\Domain\Model\Version $version The version to be added
     */
    public function addVersion(Version $version)
    {
        $this->versions->attach($version);
        $this->setLastVersion($version);
        $this->addDownloads($version->getAllDownloads());
    }

    /**
     * Removes a Version
     *
     * @param \T3o\TerFe2\Domain\Model\Version $version
     */
    public function removeVersion(Version $version)
    {
        if (!$this->versions->contains($version)) {
            throw new \UnexpectedValueException('Tried to remove a version which is not part of the extension.', 1339359060);
        }

        $versionCount = $this->getVersionCount();
        $this->versions->detach($version);
        if ($version === $this->lastVersion) {
            if ($versionCount === 1) {
                $this->lastVersion = null;
            } else {
                $this->lastVersion = array_shift($this->getReverseVersionsByVersionNumber());
            }
        }
    }

    /**
     * Setter for lastVersion, will only set if given version is newer than existing one
     *
     * @param \T3o\TerFe2\Domain\Model\Version $lastVersion lastVersion
     */
    public function setLastVersion(Version $lastVersion)
    {
        $this->lastVersion = $lastVersion;
    }

    /**
     * Getter for lastVersion
     *
     * @return \T3o\TerFe2\Domain\Model\Version lastVersion
     */
    public function getLastVersion()
    {
        return $this->lastVersion;
    }

    /**
     * Setter for frontendUser
     *
     * @param string $frontendUser Frontend user
     */
    public function setFrontendUser(string $frontendUser)
    {
        $this->frontendUser = $frontendUser;
    }

    /**
     * Getter for frontendUser
     *
     * @return string Frontend user
     */
    public function getFrontendUser(): string
    {
        return $this->frontendUser;
    }

    /**
     * Sets externalManual
     *
     * @param string $externalManual
     */
    public function setExternalManual(string $externalManual)
    {
        $this->externalManual = $externalManual;
    }

    /**
     * Gets externalManual
     *
     * @return string
     */
    public function getExternalManual(): string
    {
        return $this->externalManual;
    }

    /**
     * Sets paypalUrl
     *
     * @param string $paypalUrl
     */
    public function setPaypalUrl(string $paypalUrl)
    {
        $this->paypalUrl = $paypalUrl;
    }

    /**
     * Gets paypalUrl
     *
     * @return string
     */
    public function getPaypalUrl(): string
    {
        return $this->paypalUrl;
    }

    /**
     * Sets repositoryUrl
     *
     * @param string $repositoryUrl
     */
    public function setRepositoryUrl(string $repositoryUrl)
    {
        $this->repositoryUrl = $repositoryUrl;
    }

    /**
     * Gets repositoryUrl
     *
     * @return string
     */
    public function getRepositoryUrl(): string
    {
        return $this->repositoryUrl;
    }

    /**
     * Returns all votes for the extension
     *
     * @return array Vote counts
     */
    public function getVotes(): array
    {
        $votes = [
            'positive' => 0,
            'negative' => 0,
        ];

        foreach ($this->versions as $version) {
            $experiences = $version->getExperiences();
            if (!is_array($experiences)) {
                continue;
            }
            foreach ($experiences as $experience) {
                $rating = $experience->getRating();
                if ($rating > 0) {
                    $votes['positive'] += $rating;
                } else {
                    $votes['negative'] += $rating;
                }
            }
        }

        return $votes;
    }

    /**
     * Set all downloads sum
     *
     * @param int $downloads Count of downloads
     */
    public function setDownloads(int $downloads)
    {
        $this->downloads = $downloads;
    }

    /**
     * Get sum of all version downloads
     *
     * @return int All downloads
     */
    public function getDownloads(): int
    {
        return $this->downloads;
    }

    /**
     * Add downloads to all downloads sum
     *
     * @param int $downloads Count of downloads to add
     */
    public function addDownloads(int $downloads)
    {
        $this->downloads += $downloads;
    }

    /**
     * @return \DateTime
     */
    public function getExpire(): \DateTime
    {
        if ($this->expire === null) {
            $this->expire = new \DateTime();
            $this->expire->setTimestamp(0);
        }
        return $this->expire;
    }

    /**
     * @param \DateTime|null $expire
     */
    public function setExpire(\DateTime $expire = null)
    {
        $this->expire = $expire;
    }

    /**
     * Recalculate sum of all downloads
     */
    public function recalculateDownloads()
    {
        $downloads = 0;
        $versions = $this->getVersions();

        foreach ($versions as $version) {
            $downloads += $version->getAllDownloads();
        }

        if (!empty($downloads)) {
            $this->setDownloads($downloads);
        }
    }

    /**
     * @param int $versionCount
     * @return string
     */
    public function getDownloadsByVersionsAsJson($versionCount = 6): string
    {
        if (empty($this->versions)) {
            return '';
        }
        $versions = [];
        foreach ($this->getReverseVersionsByVersionNumber($versionCount) as $version) {
            /** @var \T3o\TerFe2\Domain\Model\Version $version */
            $versions['release'][$version->getUploadDate()] = date('d-m-Y', $version->getUploadDate());
            $versions['versions'][] = $version->getVersionString();
            $versions['downloads'][] = $version->getAllDownloads();
        }
        $versions['release'] = array_splice($versions['release'], $versionCount * -1);
        $versions['versions'] = array_splice($versions['versions'], $versionCount * -1);
        $versions['downloads'] = array_splice($versions['downloads'], $versionCount * -1);

        return json_encode($versions);
    }

    /**
     * @return \DateTime|null
     */
    public function getDateOfFirstUpload()
    {
        $dateOfFirstUpload = null;

        $versions = array_reverse($this->getReverseVersionsByVersionNumber());
        list($firstVersion) = $versions;

        if (!empty($firstVersion)) {
            $dateOfFirstUpload = date('d-m-Y', $firstVersion->getUploadDate());
        }

        return $dateOfFirstUpload;
    }

    /**
     * @return string
     */
    public function getComposerName()
    {
        return $this->composerName;
    }

    /**
     * @param string $composerName
     */
    public function setComposerName($composerName)
    {
        $this->composerName = $composerName;
    }

    /**
     * @return int
     */
    public function getLikes()
    {
        return $this->likes;
    }

    /**
     * @param int $likes
     * @return void
     */
    public function setLikes(int $likes)
    {
        $this->likes = $likes;
    }

    public function increaseLikes()
    {
        $this->likes++;
    }

    public function decreaseLikes()
    {
        if ($this->likes > 0) {
            $this->likes--;
        }
    }
}