73 lines
2.5 KiB
PHP
73 lines
2.5 KiB
PHP
<?php declare(strict_types=1);
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namespace App\Captcha\Images;
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use App\Captcha\Config\ImageHead as ImageHeadConfig;
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use App\Captcha\Contracts\ImageLines;
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use App\Captcha\Dto\Image as ImageDto;
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use App\Captcha\Dto\ImageHead as ImageHeadDto;
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use App\Captcha\Dto\Symbols;
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use App\Captcha\Contracts\ImageHead;
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use \App\Captcha\Contracts\Image as ImageContract;
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use App\Captcha\Enums\SymbolType;
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use App\Captcha\Contracts\ImageManager;
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final class Head implements ImageHead
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{
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public function __construct(
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private readonly ImageManager $imageManager,
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private readonly ImageLines $imageLines
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) { }
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public function processing(Symbols $symbols, ImageHeadConfig $config): ImageHeadDto
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{
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$image = $this->imageManager->createImage($config->getWidth(), $config->getHeight());
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$image->insertBackground($config->randomBackground());
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$image = match ($symbols->getType()) {
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SymbolType::String => $this->processingString($image, $symbols, $config),
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};
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if ($config->getNumberLines() > 0) {
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$this->imageLines->processing(image: $image, colors: $config->getLineColors(), lines: $config->getNumberLines());
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}
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$image = new ImageDto(
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imageBase64: $image->encode(),
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width: $image->getWidth(),
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height: $image->getHeight()
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);
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return new ImageHeadDto(image: $image);
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}
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private function processingString(ImageContract $image, Symbols $symbols, ImageHeadConfig $config): Image
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{
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$textLeftPadding = $config->getTextPaddingLeft();
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$textTopPadding = $config->getTextPaddingTop();
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$countSymbols = count($symbols->getSuccess());
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$widthPrefix = $image->getWidth() - $textLeftPadding;
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$imageHeight = $image->getHeight() - $textTopPadding;
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foreach ($symbols->getSuccess() as $number => $symbol) {
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$marginLeft = $textLeftPadding + $number * $widthPrefix / $countSymbols;
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$image->addText(
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text: $symbol,
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x: intval($marginLeft),
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y: $textTopPadding,
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size: $this->randomFontSize($imageHeight),
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angle: $config->randomAngle(),
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hexColor: $config->randomFontColor(),
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fontName: $config->randomFont()
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);
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}
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return $image;
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}
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private function randomFontSize(int $imageHeight): int
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{
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return mt_rand($imageHeight - 10, $imageHeight);
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}
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}
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