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<?php

namespace Spatie\Image;

use BadMethodCallException;
use Intervention\Image\ImageManagerStatic as InterventionImage;
use Spatie\Image\Exceptions\InvalidImageDriver;
use Spatie\ImageOptimizer\OptimizerChain;
use Spatie\ImageOptimizer\OptimizerChainFactory;
use Spatie\ImageOptimizer\Optimizers\BaseOptimizer;

/** @mixin \Spatie\Image\Manipulations */
class Image
{
    /** @var string */
    protected $pathToImage;

/** @var \Spatie\Image\Manipulations */
    protected $manipulations;

protected $imageDriver = 'gd';

/** @var string|null */
    protected $temporaryDirectory = null;

/** @var OptimizerChain|null */
    protected $optimizerChain;

/**
     * @param string $pathToImage
     *
     * @return static
     */
    public static function load(string $pathToImage)
    {
        return new static($pathToImage);
    }

public function setTemporaryDirectory($tempDir)
    {
        $this->temporaryDirectory = $tempDir;

return $this;
    }

public function setOptimizeChain(OptimizerChain $optimizerChain)
    {
        $this->optimizerChain = $optimizerChain;

return $this;
    }

public function __construct(string $pathToImage)
    {
        $this->pathToImage = $pathToImage;

$this->manipulations = new Manipulations();
    }

/**
     * @param string $imageDriver
     *
     * @return $this
     *
     * @throws InvalidImageDriver
     */
    public function useImageDriver(string $imageDriver)
    {
        if (! in_array($imageDriver, ['gd', 'imagick'])) {
            throw InvalidImageDriver::driver($imageDriver);
        }

$this->imageDriver = $imageDriver;

InterventionImage::configure([
            'driver' => $this->imageDriver,
        ]);

return $this;
    }

/**
     * @param callable|Manipulations $manipulations
     *
     * @return $this
     */
    public function manipulate($manipulations)
    {
        if (is_callable($manipulations)) {
            $manipulations($this->manipulations);
        }

if ($manipulations instanceof Manipulations) {
            $this->manipulations->mergeManipulations($manipulations);
        }

return $this;
    }

public function __call($name, $arguments)
    {
        if (! method_exists($this->manipulations, $name)) {
            throw new BadMethodCallException("Manipulation `{$name}` does not exist");
        }

$this->manipulations->$name(...$arguments);

return $this;
    }

public function getWidth(): int
    {
        return InterventionImage::make($this->pathToImage)->width();
    }

public function getHeight(): int
    {
        return InterventionImage::make($this->pathToImage)->height();
    }

public function getManipulationSequence(): ManipulationSequence
    {
        return $this->manipulations->getManipulationSequence();
    }

public function save($outputPath = '')
    {
        if ($outputPath == '') {
            $outputPath = $this->pathToImage;
        }

$this->addFormatManipulation($outputPath);

$glideConversion = GlideConversion::create($this->pathToImage)->useImageDriver($this->imageDriver);

if (! is_null($this->temporaryDirectory)) {
            $glideConversion->setTemporaryDirectory($this->temporaryDirectory);
        }

$glideConversion->performManipulations($this->manipulations);

$glideConversion->save($outputPath);

if ($this->shouldOptimize()) {
            $optimizerChainConfiguration = $this->manipulations->getFirstManipulationArgument('optimize');

$optimizerChainConfiguration = json_decode($optimizerChainConfiguration, true);

$this->performOptimization($outputPath, $optimizerChainConfiguration);
        }
    }

protected function shouldOptimize(): bool
    {
        return ! is_null($this->manipulations->getFirstManipulationArgument('optimize'));
    }

protected function performOptimization($path, array $optimizerChainConfiguration)
    {
        $optimizerChain = $this->optimizerChain ?? OptimizerChainFactory::create();

if (count($optimizerChainConfiguration)) {
            $existingOptimizers = $optimizerChain->getOptimizers();

$optimizers = array_map(function (array $optimizerOptions, string $optimizerClassName) use ($existingOptimizers) {
                $optimizer = array_values(array_filter($existingOptimizers, function ($optimizer) use ($optimizerClassName) {
                    return get_class($optimizer) === $optimizerClassName;
                }));

$optimizer = isset($optimizer[0]) && $optimizer[0] instanceof BaseOptimizer ? $optimizer[0] : new $optimizerClassName;

return $optimizer->setOptions($optimizerOptions)->setBinaryPath($optimizer->binaryPath);
            }, $optimizerChainConfiguration, array_keys($optimizerChainConfiguration));

$optimizerChain->setOptimizers($optimizers);
        }

$optimizerChain->optimize($path);
    }

protected function addFormatManipulation($outputPath)
    {
        if ($this->manipulations->hasManipulation('format')) {
            return;
        }

$inputExtension = strtolower(pathinfo($this->pathToImage, PATHINFO_EXTENSION));
        $outputExtension = strtolower(pathinfo($outputPath, PATHINFO_EXTENSION));

if ($inputExtension === $outputExtension) {
            return;
        }

$supportedFormats = ['jpg', 'pjpg', 'png', 'gif', 'webp'];

if (in_array($outputExtension, $supportedFormats)) {
            $this->manipulations->format($outputExtension);
        }
    }
}