created language switcher

build.py

@@ -1,6 +1,11 @@
 import yaml
 import os
 
+LANG_LABELS = {
+    "en": "English",
+    "de": "Deutsch",
+}
+
 with open("content.yaml", "r") as f:
     content = yaml.safe_load(f)
 
@@ -10,13 +15,28 @@ for page_name, translations in content.items():
     with open(template_file, "r") as f:
         template = f.read()
 
+    languages = list(translations.keys())
+
     for lang, page_data in translations.items():
         output = template
-        output = output.replace("{{lang}}", lang)
 
         for key, value in page_data.items():
             output = output.replace(f"{{{{{key}}}}}", value)
 
+        output = output.replace("{{lang}}", lang)
+
+        links = []
+        for other_lang in languages:
+            if other_lang == lang:
+                continue
+
+            label = LANG_LABELS.get(other_lang, other_lang)
+            link = f'<a href="/{other_lang}/{page_name}.html">{label}</a>'
+            links.append(link)
+
+        language_switcher = " ".join(links)
+        output = output.replace("{{language-switcher}}", language_switcher)
+
         output_dir = lang
         os.makedirs(output_dir, exist_ok=True)