Add getTemplate endpoint for sites

app/config/errors.php

@@ -546,6 +546,11 @@ return [
         'description' => 'The requested framework is either inactive or unsupported. Please check the value of the _APP_SITES_FRAMEWORKS environment variable.',
         'code' => 404,
     ],
+    Exception::SITE_TEMPLATE_NOT_FOUND => [
+        'name' => Exception::SITE_TEMPLATE_NOT_FOUND,
+        'description' => 'Site Template with the requested ID could not be found.',
+        'code' => 404,
+    ],
 
     /** Builds  */
     Exception::BUILD_NOT_FOUND => [

src/Appwrite/Extend/Exception.php

@@ -154,6 +154,7 @@ class Exception extends \Exception
     /** Sites */
     public const SITE_NOT_FOUND                    = 'site_not_found';
     public const SITE_FRAMEWORK_UNSUPPORTED        = 'site_framework_unsupported';
+    public const SITE_TEMPLATE_NOT_FOUND           = 'site_template_not_found';
 
     /** Functions */
     public const FUNCTION_NOT_FOUND                = 'function_not_found';

src/Appwrite/Platform/Modules/Sites/Http/Sites/GetTemplate.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace Appwrite\Platform\Modules\Sites\Http\Sites;
+
+use Appwrite\Extend\Exception;
+use Appwrite\Platform\Modules\Compute\Base;
+use Appwrite\Utopia\Response;
+use Utopia\Config\Config;
+use Utopia\Database\Document;
+use Utopia\Platform\Action;
+use Utopia\Platform\Scope\HTTP;
+use Utopia\Validator\Text;
+
+class GetTemplate extends Base
+{
+    use HTTP;
+
+    public static function getName()
+    {
+        return 'getTemplate';
+    }
+
+    public function __construct()
+    {
+        $this
+            ->setHttpMethod(Action::HTTP_REQUEST_METHOD_GET)
+            ->setHttpPath('/v1/sites/templates/:templateId')
+            ->desc('Get site template')
+            ->label('scope', 'public')
+            ->label('sdk.namespace', 'sites')
+            ->label('sdk.method', 'getTemplate')
+            ->label('sdk.auth', [APP_AUTH_TYPE_ADMIN])
+            ->label('sdk.description', '/docs/references/sites/get-template.md')
+            ->label('sdk.response.code', Response::STATUS_CODE_OK)
+            ->label('sdk.response.type', Response::CONTENT_TYPE_JSON)
+            ->label('sdk.response.model', Response::MODEL_TEMPLATE_SITE)
+            ->param('templateId', '', new Text(128), 'Template ID.')
+            ->inject('response')
+            ->callback([$this, 'action']);
+    }
+
+    public function action(string $templateId, Response $response)
+    {
+        $templates = Config::getParam('site-templates', []);
+
+        $template = array_shift(\array_filter($templates, function ($template) use ($templateId) {
+            return $template['id'] === $templateId;
+        }));
+
+        if (empty($template)) {
+            throw new Exception(Exception::SITE_TEMPLATE_NOT_FOUND);
+        }
+
+        $response->dynamic(new Document($template), Response::MODEL_TEMPLATE_SITE);
+    }
+}

src/Appwrite/Platform/Modules/Sites/Services/Http.php

@@ -16,6 +16,7 @@ use Appwrite\Platform\Modules\Sites\Http\Sites\DeleteSite;
 use Appwrite\Platform\Modules\Sites\Http\Sites\GetSite;
 use Appwrite\Platform\Modules\Sites\Http\Sites\GetSitesUsage;
 use Appwrite\Platform\Modules\Sites\Http\Sites\GetSiteUsage;
+use Appwrite\Platform\Modules\Sites\Http\Sites\GetTemplate;
 use Appwrite\Platform\Modules\Sites\Http\Sites\ListFrameworks;
 use Appwrite\Platform\Modules\Sites\Http\Sites\ListSites;
 use Appwrite\Platform\Modules\Sites\Http\Sites\ListTemplates;
@@ -60,7 +61,10 @@ class Http extends Service
         $this->addAction(ListVariables::getName(), new ListVariables());
         $this->addAction(UpdateVariable::getName(), new UpdateVariable());
         $this->addAction(DeleteVariable::getName(), new DeleteVariable());
+
+        // Templates
         $this->addAction(ListTemplates::getName(), new ListTemplates());
+        $this->addAction(GetTemplate::getName(), new GetTemplate());
 
         // Usage
         $this->addAction(GetSiteUsage::getName(), new GetSiteUsage());