Further cleanup

personal_data/fetchers/wanikani_lessons.py

@@ -1,5 +1,6 @@
 import dataclasses
 import datetime
+import requests
 import logging
 from collections.abc import Iterator, Mapping
 from email.utils import parsedate_to_datetime
@@ -65,15 +66,16 @@ class WaniKaniLessonsFetcher(Scraper):
                 yield data_item
             url = json_resp.get('pages', {}).get('next_url')
 
+def date_from_response(response) -> datetime.datetime:
+    if date_header := response.headers.get('Date'):
+        return parsedate_to_datetime(date_header)
+    return datetime.datetime.now(datetime.timezone.utc)
 
 @dataclasses.dataclass(frozen=True)
 class WaniKaniSummaryFetcher(Scraper):
     dataset_name: str = 'wanikani_summary'
     deduplicate_mode = DeduplicateMode.BY_ALL_COLUMNS
-
-    @staticmethod
-    def deduplicate_mode() -> DeduplicateMode:
-        return DeduplicateMode.BY_ALL_COLUMNS
+    deduplicate_ignore_columns = ['time.current']
 
     def scrape(self) -> Iterator[dict]:
         _setup_cache(self.session)
@@ -81,7 +83,7 @@ class WaniKaniSummaryFetcher(Scraper):
             'Authorization': f'Bearer {secrets.wanikani_api_key()}',
             'Wanikani-Revision': '20170710',
         }
-        response = self.session.get(URL_SUMMARY, headers=headers)
+        response = requests.get(URL_SUMMARY, headers=headers)
         response.raise_for_status()
         data = response.json()
 
@@ -89,16 +91,8 @@ class WaniKaniSummaryFetcher(Scraper):
         total_lessons = sum(len(lesson.get('subject_ids', [])) for lesson in lessons)
 
         reviews = data.get('data', {}).get('reviews', [])
-        date_hdr = response.headers.get('Date')
-        try:
-            now = (
-                parsedate_to_datetime(date_hdr)
-                if date_hdr
-                else datetime.datetime.now(datetime.timezone.utc)
-            )
-        except Exception:
-            now = datetime.datetime.now(datetime.timezone.utc)
         total_reviews = 0
+        now = date_from_response(response)
         for review in reviews:
             available_at_str = review.get('available_at')
             if available_at_str:
@@ -110,7 +104,7 @@ class WaniKaniSummaryFetcher(Scraper):
             del review
 
         yield {
-            'time': now,
-            'lessons_available': total_lessons,
-            'reviews_available': total_reviews,
+            'time.current': now,
+            'lessons.available': total_lessons,
+            'reviews.available': total_reviews,
         }