Added method to obtain list of template variables

Signed-off-by: Erika Heidi <[email protected]>
minicli · Jun 21, 2022 · a328319 · a328319
1 parent 6be1f26
commit a328319
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Showing 2 changed files with 40 additions and 9 deletions.
diff --git a/src/Stencil.php b/src/Stencil.php
@@ -16,18 +16,39 @@ public function __construct(string $stencilDir)
      */
     public function applyTemplate(string $templateName, array $variables = []): string
     {
-        $templateFile = $this->stencilDir . '/' . $templateName . '.tpl';
-
-        if (!is_file($templateFile)) {
-            throw new FileNotFoundException("Template file not found.");
-        }
-
-        $template = file_get_contents($templateFile);
-
+        $template = $this->getTemplate($templateName);
         foreach ($variables as $variableName => $variableValue) {
             $template = str_replace("{{ $variableName }}", $variableValue, $template);
         }
 
         return $template;
     }
+
+    /**
+     * @param string $templateName
+     * @return mixed
+     * @throws FileNotFoundException
+     */
+    public function scanTemplateVars(string $templateName): array
+    {
+        $template = $this->getTemplate($templateName);
+        preg_match_all('/\{\{\s([a-zA-z0-9-_]*\b)\s}}/', $template, $out);
+        return $out[1];
+    }
+
+    /**
+     * @param string $template
+     * @return string
+     * @throws FileNotFoundException
+     */
+    public function getTemplate(string $template): string
+    {
+        $templateFile = $this->stencilDir . '/' . $template . '.tpl';
+
+        if (!is_file($templateFile)) {
+            throw new FileNotFoundException("Template file not found.");
+        }
+
+        return file_get_contents($templateFile);
+    }
 }
diff --git a/tests/StencilTest.php b/tests/StencilTest.php
@@ -19,8 +19,18 @@
     ];
 
     $parsedContent = $stencil->applyTemplate('mytemplate', $values);
-    var_dump($parsedContent);
+
     expect($parsedContent)->toBeString();
     $this->assertStringContainsString($values['name'], $parsedContent);
     $this->assertStringContainsString($values['description'], $parsedContent);
 });
+
+it('obtains list of template variables', function () {
+    $stencil = getStencil();
+    $variables = $stencil->scanTemplateVars('mytemplate');
+
+    expect($variables)
+        ->toBeArray()
+        ->toContain('name')
+        ->toContain('description');
+});