fix(pdf-export): add language support on pdf export

Author: sudip-khanal

api/serializers.py

@@ -2554,6 +2554,7 @@ def validate_pdf_file(self, pdf_file):
         return pdf_file
 
     def create(self, validated_data):
+        language = django_get_language()
         export_id = validated_data.get("export_id")
         export_type = validated_data.get("export_type")
         country_id = validated_data.get("per_country")
@@ -2586,7 +2587,7 @@ def create(self, validated_data):
             export.requested_at = timezone.now()
             export.save(update_fields=["status", "requested_at"])
 
-            transaction.on_commit(lambda: generate_url.delay(export.url, export.id, user.id, title))
+            transaction.on_commit(lambda: generate_url.delay(export.url, export.id, user.id, title, language))
         return export
 
     def update(self, instance, validated_data):

api/tasks.py

@@ -19,7 +19,7 @@
 from .utils import DebugPlaywright
 
 
-def build_storage_state(tmp_dir, user, token):
+def build_storage_state(tmp_dir, user, token, language):
     temp_file = pathlib.Path(tmp_dir, "storage_state.json")
     temp_file.touch()
 
@@ -40,7 +40,7 @@ def build_storage_state(tmp_dir, user, token):
                             }
                         ),
                     },
-                    {"name": "language", "value": json.dumps("en")},  # enforce all export to English
+                    {"name": "language", "value": json.dumps(language)},  # NOTE: Use the language from the request for PDF export
                 ],
             }
         ]
@@ -51,7 +51,7 @@ def build_storage_state(tmp_dir, user, token):
 
 
 @shared_task
-def generate_url(url, export_id, user, title):
+def generate_url(url, export_id, user, title, language):
     export = Export.objects.get(id=export_id)
     user = User.objects.get(id=user)
     token = Token.objects.filter(user=user).last()
@@ -92,6 +92,7 @@ def generate_url(url, export_id, user, title):
                     tmp_dir,
                     user,
                     token,
+                    language,
                 )
                 context = browser.new_context(storage_state=storage_state)
                 page = context.new_page()