Add command to update all link thumbnails

app/Console/Commands/CleanupLinkHistoriesCommand.php

@@ -8,7 +8,7 @@ use Venturecraft\Revisionable\Revision;
 
 class CleanupLinkHistoriesCommand extends Command
 {
-    protected $signature = 'link:cleanup-histories {field?}';
+    protected $signature = 'links:cleanup-histories {field?}';
 
     protected $description = 'Removes all but the last 5 entries in the link histories.
         {field : If provided, only history entries of that field are deleted}';

app/Console/Commands/UpdateLinkThumbnails.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace App\Console\Commands;
+
+use App\Helper\HtmlMeta;
+use App\Models\Link;
+use Illuminate\Console\Command;
+
+class UpdateLinkThumbnails extends Command
+{
+    protected $signature = 'links:update-thumbnails';
+
+    protected $description = 'Updates the thumbnails for all existing links, done in batches.';
+
+    public function handle()
+    {
+        $this->confirm('This command updates the thumbnail for all links with the status "ok". This can take a long time, depending on the amount of links you have saved. Do you want to proceed?');
+
+        $totalCount = Link::where('status', Link::STATUS_OK)->count();
+        $processedLinks = 0;
+
+        if ($totalCount === 0) {
+            $this->warn('No links with status "ok" found. Aborting');
+        }
+
+        $this->comment("Started processing of $totalCount links...");
+
+        Link::where('status', Link::STATUS_OK)->latest()
+            ->chunk(100, function ($links) use ($processedLinks, $totalCount) {
+                foreach ($links as $link) {
+                    $this->updateThumbnailForLink($link);
+                    sleep(1); // Rate limiting of outgoing traffic
+                }
+
+                $processedLinks += count($links);
+                $this->comment("Processed $processedLinks of $totalCount links.");
+            });
+
+        $this->info('Finished processing all links.');
+    }
+
+    protected function updateThumbnailForLink(Link $link): void
+    {
+        $meta = (new HtmlMeta)->getFromUrl($link->url);
+
+        if ($meta['thumbnail'] !== null) {
+            $link->thumbnail = $meta['thumbnail'];
+            $link->save();
+        }
+    }
+}

app/Console/Kernel.php

@@ -7,6 +7,7 @@ use App\Console\Commands\CleanupLinkHistoriesCommand;
 use App\Console\Commands\RegisterUserCommand;
 use App\Console\Commands\ResetPasswordCommand;
 use App\Console\Commands\ImportCommand;
+use App\Console\Commands\UpdateLinkThumbnails;
 use Illuminate\Console\Scheduling\Schedule;
 use Illuminate\Foundation\Console\Kernel as ConsoleKernel;
 
@@ -28,6 +29,7 @@ class Kernel extends ConsoleKernel
         ResetPasswordCommand::class,
         CleanupLinkHistoriesCommand::class,
         ImportCommand::class,
+        UpdateLinkThumbnails::class,
     ];
 
     /**