minor fixes

app/Repositories/Core/PDF.php

@@ -2,41 +2,66 @@
 
 namespace App\Repositories\Core;
 
+use Barryvdh\Debugbar\Facades\Debugbar;
 use Barryvdh\DomPDF\Facade\Pdf as DomPDF;
 use Barryvdh\Snappy\Facades\SnappyPdf;
 use GravityMedia\Ghostscript\Ghostscript;
+use Imagick;
 use Mpdf\Mpdf;
+use Spatie\PdfToText\Pdf as PDFToText;
 use Symfony\Component\Process\Process;
 
 class PDF
 {
-    public function convertView($view, $data, $filename)
-    {
-        try {
-            Browsershot::html(view($view, $data)->render())
-                ->noSandbox()
-                ->waitUntilNetworkIdle()
-                ->format('A4')
-                ->showBackground()
-                ->savePdf('temp.pdf');
-
-            $postRoute = URL::signedRoute('orderinvoices.store', ['order' => $this->order]);
-            Http::attach('invoice', file_get_contents('temp.pdf'), $filename)
-                ->post($postRoute)
-                ->throw();
-        } catch (\Exception $exception) {
-            Log::error($exception);
-        }
-    }
-
     public static function view($view, $data, $filename = 'file.pdf')
     {
-        \Debugbar::disable();
+        Debugbar::disable();
         $pdf = DomPDF::loadView($view, $data);
 
         return $pdf->download($filename);
     }
 
+    public static function countPages($filename)
+    {
+        $image = new Imagick();
+        $image->pingImage($filename);
+
+        return $image->getNumberImages();
+
+        /*
+        $pdftext = file_get_contents($filename);
+
+        return preg_match_all("/\/Page\W*(\d+)/", $pdftext, $dummy);
+        */
+    }
+
+    public function getPDFPages($document)
+    {
+        $cmd = '/path/to/pdfinfo';           // Linux
+        $cmd = 'C:\\path\\to\\pdfinfo.exe';  // Windows
+
+        // Parse entire output
+        // Surround with double quotes if file name has spaces
+        exec("$cmd \"$document\"", $output);
+
+        // Iterate through lines
+        $pagecount = 0;
+        foreach ($output as $op) {
+            // Extract the number
+            if (preg_match("/Pages:\s*(\d+)/i", $op, $matches) === 1) {
+                $pagecount = intval($matches[1]);
+                break;
+            }
+        }
+
+        return $pagecount;
+    }
+
+    public static function getText($filename)
+    {
+        return PDFToText::getText($filename);
+    }
+
     public static function convertHTML($html)
     {
         $mpdf = new Mpdf();
@@ -45,11 +70,11 @@ class PDF
         return $mpdf->Output();
     }
 
-    public static function convertURL($url)
+    public static function convertURL($url, $filename = 'sample.pdf')
     {
         $pdf = SnappyPdf::loadFile($url);
 
-        return $pdf->download('invoice.pdf');
+        return $pdf->download($filename);
     }
 
     public static function convertIfNeeded($filename)
@@ -62,13 +87,14 @@ class PDF
     public static function getVersion($filename)
     {
         $pdf = fopen($filename, 'r');
-        if ($pdf) {
-            $line_first = fgets($pdf);
-            fclose($pdf);
-        } else {
+        if (! $pdf) {
             echo 'error opening the file.';
+
+            return false;
         }
-        preg_match_all('!\d+!', $line_first, $matches);
+        $lineFirst = fgets($pdf);
+        fclose($pdf);
+        preg_match_all('!\d+!', $lineFirst, $matches);
         $version = implode('.', $matches[0]);
 
         return (float) $version;
@@ -76,35 +102,31 @@ class PDF
 
     public static function downgrade($filename)
     {
-        $new_filename = $filename.'-temp';
+        $newFilename = $filename.'-temp';
         $ghostscript = new Ghostscript([
             'quiet' => false,
         ]);
 
-        $device = $ghostscript->createPdfDevice($new_filename);
+        $device = $ghostscript->createPdfDevice($newFilename);
         $device->setCompatibilityLevel(1.4);
-
-        // dump($device);
         $process = $device->createProcess($filename);
-        // dump($process);
-        // echo '$ ' . $process->getCommandLine() . PHP_EOL;
-        // exit;
+
         $process->run(function ($type, $buffer) {
             if ($type === Process::ERR) {
                 throw new \RuntimeException($buffer);
             }
-            // print $buffer;
         });
 
         unlink($filename);
-        rename($new_filename, $filename);
+        rename($newFilename, $filename);
     }
 
     public static function downgrade2($filename)
     {
-        $new_filename = $filename.'-temp';
-        shell_exec('gs -dBATCH -dCompatibilityLevel=1.4 -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile="'.$new_filename.'" "'.$filename.'"');
+        $newFilename = $filename.'-temp';
+        $options = '-dBATCH -dCompatibilityLevel=1.4 -dNOPAUSE -q -sDEVICE=pdfwrite';
+        shell_exec("gs {$options} -sOutputFile=\"{$newFilename}\" \"{$filename}\"");
         unlink($filename);
-        rename($new_filename, $filename);
+        rename($newFilename, $filename);
     }
 }