feat: implement wkhtmltopdf backend

Author: alexpozzi

src/Backend/WkHtmlToPdf/ExtraOption.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KNPLabs\Snappy\Backend\WkHtmlToPdf;
+
+interface ExtraOption {
+    /** @return array<string|int|float> */
+    public function compile(): array;
+}

src/Backend/WkHtmlToPdf/ExtraOption/CollateOption.php

@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption;
+
+use KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption;
+
+final class CollateOption implements ExtraOption
+{
+    public function __construct() {}
+
+    public function compile(): array
+    {
+        return ['--collate'];
+    }
+}

src/Backend/WkHtmlToPdf/ExtraOption/CookieJarOption.php

@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption;
+
+use KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption;
+
+final class CookieJarOption implements ExtraOption
+{
+    public function __construct(public readonly string $path) {}
+
+    public function compile(): array
+    {
+        return ['--no-collate'];
+    }
+}

src/Backend/WkHtmlToPdf/ExtraOption/CopiesOption.php

@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption;
+
+use KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption;
+
+final class CopiesOption implements ExtraOption
+{
+    public function __construct(private readonly int $number) {}
+
+    public function compile(): array
+    {
+        return ['--copies', $this->number];
+    }
+}

src/Backend/WkHtmlToPdf/ExtraOption/DpiOption.php

@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption;
+
+use KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption;
+
+final class DpiOptions implements ExtraOption
+{
+    public function __construct(private readonly int $dpi) {}
+
+    public function compile(): array
+    {
+        return ['--dpi', $this->dpi];
+    }
+}

src/Backend/WkHtmlToPdf/ExtraOption/GrayscaleOption.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption;
+
+final class GrayscaleOption
+{
+    public function __construct() {}
+
+    public function compile(): array
+    {
+        return ['--grayscale'];
+    }
+}

src/Backend/WkHtmlToPdf/ExtraOption/ImageDpiOption.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption;
+
+final class ImageDpiOption
+{
+    public function __construct(public readonly int $dpi) {}
+}

src/Backend/WkHtmlToPdf/ExtraOption/NoCollateOption.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption;
+
+final class NoCollateOption
+{
+    public function __construct() {}
+}

src/Backend/WkHtmlToPdf/ExtraOption/Orientation.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption;
+
+final class Orientation
+{
+    public function __construct() {}
+}

src/Backend/WkHtmlToPdf/WkHtmlToPdfAdapter.php

@@ -4,14 +4,21 @@
 
 namespace KNPLabs\Snappy\Backend\WkHtmlToPdf;
 
-use KNPLabs\Snappy\Core\Backend\Adapter;
+use KNPLabs\Snappy\Backend\WkHtmlToPdf\ExtraOption\Orientation;
 use KNPLabs\Snappy\Core\Backend\Adapter\HtmlFileToPdf;
 use KNPLabs\Snappy\Core\Backend\Adapter\Reconfigurable;
+use KNPLabs\Snappy\Core\Backend\Adapter\UriToPdf;
 use KNPLabs\Snappy\Core\Backend\Options;
+use KNPLabs\Snappy\Core\Backend\Options\PageOrientation;
+use KNPLabs\Snappy\Core\Stream\FileStream;
+use Psr\Http\Message\StreamFactoryInterface;
 use Psr\Http\Message\StreamInterface;
+use Psr\Http\Message\UriFactoryInterface;
+use Psr\Http\Message\UriInterface;
+use Symfony\Component\Process\Process;
 use SplFileInfo;
 
-final class WkHtmlToPdfAdapter implements HtmlFileToPdf
+final class WkHtmlToPdfAdapter implements HtmlFileToPdf, UriToPdf
 {
     /**
      * @use Reconfigurable<self>
@@ -26,14 +33,70 @@ public function __construct(
         private string $binary,
         private int $timeout,
         WkHtmlToPdfFactory $factory,
-        Options $options
+        Options $options,
+        private readonly StreamFactoryInterface $streamFactory,
+        private readonly UriFactoryInterface $uriFactory,
     ) {
         $this->factory = $factory;
+
+        foreach ($options->extraOptions as $extraOption) {
+            if (!$extraOption instanceof ExtraOption) {
+                throw new \InvalidArgumentException("Invalid option type");
+            }
+        }
+
         $this->options = $options;
     }
 
     public function generateFromHtmlFile(SplFileInfo $file): StreamInterface
     {
-        throw new \Exception("Not implemented for {$this->binary} with timeout {$this->timeout}.");
+        $filepath = $file->getRealPath();
+
+        if ($filepath === false) {
+            throw new \RuntimeException("File not found: {$file->getPathname()}.");
+        }
+
+        return $this->generateFromUri(
+            $this->uriFactory->createUri($filepath)->withScheme('file')
+        );
+    }
+
+    public function generateFromUri(UriInterface $uri): StreamInterface
+    {
+        $outputStream = FileStream::createTmpFile($this->streamFactory);
+
+        $process = new Process(
+            command: [
+                $this->binary,
+                ...$this->compileOptions(),
+                $uri->toString(),
+                $outputStream->file->getPathname(),
+            ],
+            timeout: $this->timeout,
+        );
+
+        return $outputStream;
+    }
+
+    /**
+     * @return array<string|int|float>
+     */
+    private function compileOptions(): array
+    {
+        return array_reduce(
+            $this->options->extraOptions,
+            fn (array $carry, ExtraOption $extraOption) =>
+                $this->options->pageOrientation !== null && $extraOption instanceof Orientation
+                    ? [
+                        ...$carry,
+                        ...(new Orientation($this->options->pageOrientation->value))->compile(),
+                    ]
+                    : [
+                        ...$carry,
+                        ...$extraOption->compile(),
+                    ]
+            ,
+            [],
+        );
     }
 }