swatty007 / faker-image-generator

namespace Swatty007\FakerImageGenerator\Providers;

use Faker\Generator;

use Faker\Provider\Base;

    public int $height;

    public string $format;

    public $backgroundColor;

    public $text;

    public $textColor;

    public $fontFace;

    public function __construct(

        Generator $generator,

        $directory = null,

        $width = 640,

        $height = 480,

        $format = 'png',

        $fullPath = true,

        $text = true,

        $backgroundColor = null,

        $textColor = null,

        $fontFace = null

    ) {

        // Allow our users to define a configuration for our entire instance.

        // Or fallback to our default config values

        $this->directory = $directory ?? config('faker-image-generator.directory');

        $this->width = $width ?? config('faker-image-generator.width');

        $this->height = $height ?? config('faker-image-generator.height');

        $this->format = $format ?? config('faker-image-generator.format');

        $this->fullPath = $fullPath ?? config('faker-image-generator.full_path');

        $this->text = $text ?? config('faker-image-generator.text');

        $this->backgroundColor = $backgroundColor ?? config('faker-image-generator.background_color');

        $this->textColor = $textColor ?? config('faker-image-generator.text_color');

        $this->fontFace = $fontFace ?? config('faker-image-generator.font_face');

        parent::__construct($generator);

    }

    /**

     * Generate a new image to disk and return its location

     *

     * Requires gd (default in most PHP setup).

     *

     * @param null $directory

     * @param null $width

     * @param null $height

     * @param null $format

     * @param null $fullPath

     * @param null $text

     * @param null $backgroundColor

     * @param null $textColor

     * @param null $fontFace

     * @return false|\RuntimeException|string

     * @example '/path/to/dir/13b73edae8443990be1aa8f1a483bc27.jpg'

     */

    public function imageGenerator(

        $directory = null,

        $width = null,

        $height = null,

        $format = null,

        $fullPath = null,

        $text = null,

        $backgroundColor = null,

        $textColor = null,

        $fontFace = null

    ) {

        // Allow our users to overwrite our settings per item, if they desire so

        $directory = $directory ?? $this->directory;

        $width = $width ?? $this->width;

        $height = $height ?? $this->height;

        $format = $format ?? $this->format;

        $fullPath = $fullPath ?? $this->fullPath;

        $text = $text ?? $this->text;

        $backgroundColor = $backgroundColor ?? $this->backgroundColor;

        $textColor = $textColor ?? $this->textColor;

        $fontFace = $fontFace ?? $this->fontFace;

        // Validate directory path

        if (! is_dir($directory) || ! is_writable($directory)) {

            throw new \InvalidArgumentException(sprintf('Cannot write to directory "%s"', $directory));

        }

        // Generate a random filename. Use the server address so that a file

        // generated at the same time on a different server won't have a collision.

        $name = md5(uniqid(empty($_SERVER['SERVER_ADDR']) ? '' : $_SERVER['SERVER_ADDR'], true));

        $filename = $name . '.' . $format;

        $filepath = $directory . DIRECTORY_SEPARATOR . $filename;

        // Create our Image, if our driver exists

        if (function_exists('imagecreate')) {

            $image = imagecreate($width, $height);

            if ($backgroundColor) {

                if (substr($backgroundColor, 0, 1) == '#') {

                    $rgb = str_split(substr($backgroundColor, 1), 2);

                } else {

                    $rgb = str_split($backgroundColor, 2);

                }

                imagecolorallocate($image, hexdec($rgb[0]), hexdec($rgb[1]), hexdec($rgb[2]));

            } else {

                imagecolorallocate($image, 0, 0, 0);

            }

            if ($text === true) {

                $text = $width . 'x' . $height;

            }

            if (! is_null($text)) {

                if ($textColor) {

                    if (substr($textColor, 0, 1) == '#') {

                        $rgb = str_split(substr($textColor, 1), 2);

                    } else {

                        $rgb = str_split($textColor, 2);

                    }

                    $text_color = imagecolorallocate($image, hexdec($rgb[0]), hexdec($rgb[1]), hexdec($rgb[2]));

                } else {

                    $text_color = imagecolorallocate($image, 255, 255, 255);

                }

                $fontSize = 200;

                $textBoundingBox = imagettfbbox($fontSize, 0, $fontFace, $text);

                // decrease the default fonts size until it fits nicely within the image - Code adapted from https://github.com/img-src/placeholder

                while (((($width - ($textBoundingBox[2] - $textBoundingBox[0])) < 10) || (($height - ($textBoundingBox[1] - $textBoundingBox[7])) < 10)) && ($fontSize > 1)) {

                    $fontSize --;

                    $textBoundingBox = imagettfbbox($fontSize, 0, $fontFace, $text);

                }

                imagettftext($image, $fontSize, 0, ($width / 2) - (($textBoundingBox[2] - $textBoundingBox[0]) / 2), ($height / 2) + (($textBoundingBox[1] - $textBoundingBox[7]) / 2), $text_color, $fontFace, $text);

            }

            switch (strtolower($format)) {

                case 'jpg':

                case 'jpeg':

                default:

                    $success = imagejpeg($image, $filepath);

                    break;

                case 'png':

                    $success = imagepng($image, $filepath);

            }

            $success = imagedestroy($image);

        } else {

            // @codeCoverageIgnoreStart

            return new \RuntimeException('GD is not available on this PHP installation. Impossible to generate image.');

            // @codeCoverageIgnoreEnd

        }

        if (! $success) {

            // @codeCoverageIgnoreStart

            // could not save the file - fail silently.

            return false;

            // @codeCoverageIgnoreEnd

        }

        return $fullPath ? $filepath : $filename;

    }

}