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Edit File: ConverterFactory.php

<?php

namespace WebPConvert\Convert;

use WebPConvert\Convert\Exceptions\ConversionFailed\InvalidInput\ConverterNotFoundException;
use WebPConvert\Convert\Converters\AbstractConverter;

/**
 * Make converters from their ids.
 *
 * @package    WebPConvert
 * @author     Bjørn Rosell <it@rosell.dk>
 * @since      Class available since Release 2.0.0
 */
class ConverterFactory
{
    /**
     * Get classname of a converter (by id)
     *
     * @param  string  $converterId    Id of converter (ie "cwebp")
     *
     * @throws ConverterNotFoundException  If there is no converter with that id.
     * @return string  Fully qualified class name of converter
     */
    public static function converterIdToClassname($converterId)
    {
        switch ($converterId) {
            case 'ffmpeg':
                $classNameShort = 'FFMpeg';
                break;
            case 'imagickbinary':
                $classNameShort = 'ImagickBinary';
                break;
            case 'imagemagick':
                $classNameShort = 'ImageMagick';
                break;
            case 'gmagickbinary':
                $classNameShort = 'GmagickBinary';
                break;
            case 'graphicsmagick':
                $classNameShort = 'GraphicsMagick';
                break;
            default:
                $classNameShort = ucfirst($converterId);
        }
        $className = 'WebPConvert\\Convert\\Converters\\' . $classNameShort;
        if (is_callable([$className, 'convert'])) {
            return $className;
        } else {
            throw new ConverterNotFoundException('There is no converter with id:' . $converterId);
        }
    }

/**
     * Make a converter instance by class name.
     *
     * @param  string  $converterClassName    Fully qualified class name
     * @param  string  $source                The path to the file to convert
     * @param  string  $destination           The path to save the converted file to
     * @param  array   $options               (optional)
     * @param  \WebPConvert\Loggers\BaseLogger   $logger       (optional)
     *
     * @throws ConverterNotFoundException  If the specified converter class isn't found
     * @return AbstractConverter  An instance of the specified converter
     */
    public static function makeConverterFromClassname(
        $converterClassName,
        $source,
        $destination,
        $options = [],
        $logger = null
    ) {
        if (!is_callable([$converterClassName, 'convert'])) {
            throw new ConverterNotFoundException(
                'There is no converter with class name:' . $converterClassName . ' (or it is not a converter)'
            );
        }
        //$converter = new $converterClassName($source, $destination, $options, $logger);

return call_user_func(
            [$converterClassName, 'createInstance'],
            $source,
            $destination,
            $options,
            $logger
        );
    }

/**
     * Make a converter instance by either id or class name.
     *
     * @param  string  $converterIdOrClassName   Either a converter ID or a fully qualified class name
     * @param  string  $source                   The path to the file to convert
     * @param  string  $destination              The path to save the converted file to
     * @param  array   $options                  (optional)
     * @param  \WebPConvert\Loggers\BaseLogger   $logger       (optional)
     *
     * @throws ConverterNotFoundException  If the specified converter class isn't found
     * @return AbstractConverter  An instance of the specified converter
     */
    public static function makeConverter($converterIdOrClassName, $source, $destination, $options = [], $logger = null)
    {
        // We take it that all lowercase means it is an id rather than a class name
        if (strtolower($converterIdOrClassName) == $converterIdOrClassName) {
            $converterClassName = self::converterIdToClassname($converterIdOrClassName);
        } else {
            $converterClassName = $converterIdOrClassName;
        }

return self::makeConverterFromClassname($converterClassName, $source, $destination, $options, $logger);
    }
}