<?php

namespace common\helpers;

class Image
{
    const DIR_UPLOADS = 'uploads';

    const THUMBNAIL_SMALL = 'small';
    const THUMBNAIL_MEDIUM = 'medium';
    const THUMBNAIL_BIG = 'big';

    public static function getThumbnailSmall(string $filenameOriginal, bool $absoluteUrl = false)
    {
        return self::getThumbnail($filenameOriginal, self::THUMBNAIL_SMALL, $absoluteUrl);
    }

    public static function getThumbnailMedium(string $filenameOriginal, bool $absoluteUrl = false)
    {
        return self::getThumbnail($filenameOriginal, self::THUMBNAIL_MEDIUM, $absoluteUrl);
    }

    public static function getThumbnailBig(string $filenameOriginal, bool $absoluteUrl = false)
    {
        return self::getThumbnail($filenameOriginal, self::THUMBNAIL_BIG, $absoluteUrl);
    }

    public static function getThumbnail(string $filenameOriginal, string $thumbnail = self::THUMBNAIL_MEDIUM, bool $absoluteUrl = false)
    {
        $basePath = self::getBasePath($absoluteUrl);
        $thumbnailFilename = self::getThumbnailFilename($filenameOriginal, $thumbnail);
        $thumbnailPath = $basePath . $thumbnailFilename;
        $originalPath = $basePath . $filenameOriginal;

        return self::isThumbnailExist($thumbnailFilename) ? $thumbnailPath : $originalPath;
    }

    public static function getBasePath(bool $absoluteUrl = false): string
    {
        $absoluteUrlPrepend = '';
        if($absoluteUrl) {
            $absoluteUrlPrepend = \Yii::$app->urlManagerProducer->getHostInfo();
        }

        return $absoluteUrlPrepend . \Yii::$app->urlManagerProducer->baseUrl.'/'.self::DIR_UPLOADS.'/';
    }

    public static function getThumbnailFilename(string $filename, string $thumbnail = self::THUMBNAIL_MEDIUM)
    {
        $filenameArray = explode('.', $filename);
        return $filenameArray[0].'-'.$thumbnail.'.'.$filenameArray[1];
    }

    public static function isThumbnailExist(string $thumbnailFilename): bool
    {
        return file_exists(\Yii::getAlias('@producer').'/web/'.self::DIR_UPLOADS.'/'.$thumbnailFilename);
    }
}