apps/schedule/frab_exporter: handle slugification in exporter

Author: Kunsi

apps/schedule/frab_exporter.py

@@ -1,3 +1,4 @@
+import re
 from collections.abc import Sequence
 from dataclasses import dataclass, field
 from datetime import datetime, time, timedelta
@@ -85,6 +86,14 @@ def get_day_start_end(self, dt: datetime, start_time: time = time(4, 0)) -> tupl
 
         return start_dt, end_dt
 
+    def slugify(self, title: str) -> str:
+        title = re.sub(WHITESPACE_REGEX, "-", title)
+        title = title.lower()
+        title = unicodedata.normalize("NFD", title).encode("ASCII", "ignore").decode()
+        title = re.sub(FRAB_SLUG_REGEX, "", title)
+        title = title.strip("-")
+        return title
+
     @cached_property
     def schedule(self):
         # This is basically a reimplementation of get_schedule_item_dicts_flat
@@ -230,7 +239,7 @@ def run(self):
                                             flat_sid["occurrences"][0]["end_date"],
                                         ),
                                         "room": room["name"],
-                                        "slug": f"""emf{event_year()}-{flat_sid["id"]}-{flat_sid["occurrences"][0]["occurrence_num"]}-{flat_sid["slug"]}""",
+                                        "slug": f"""emf{event_year()}-{flat_sid["id"]}-{flat_sid["occurrences"][0]["occurrence_num"]}-{self.slugify(flat_sid["title"])}""",
                                         "url": flat_sid["link"],
                                         "title": flat_sid["title"],
                                         "subtitle": "",
@@ -359,7 +368,7 @@ def add_event(self, room: Element, room_name: str, flat_sid: ScheduleItemDict) -
         self._add_sub_with_text(event, "abstract", flat_sid["description"])
         self._add_sub_with_text(event, "description", "")
 
-        slug = f"""emf{event_year()}-{flat_sid["id"]}-{flat_sid["occurrences"][0]["occurrence_num"]}-{flat_sid["slug"]}"""
+        slug = f"""emf{event_year()}-{flat_sid["id"]}-{flat_sid["occurrences"][0]["occurrence_num"]}-{self.slugify(flat_sid["title"])}"""
         self._add_sub_with_text(event, "slug", slug)
 
         self._add_sub_with_text(event, "subtitle", "")