add diffing feature

model.py

@@ -56,3 +56,16 @@ def insert_leaderboard_db(leaderboard_list: dict) -> None:
         db.executemany(
             sql_requests.insert_leader_board,
             leaderboard)
+
+
+def get_diff_action_id(action_id: int) -> list:
+    """
+    Takes action_id and returns which squadrons has been changed in leaderboard as in action_id and
+    experience they got in compassion to action_id - 1 for the same leaderboard and platform
+
+    :param action_id:
+    :return:
+    """
+
+    sql_req: sqlite3.Cursor = db.execute(sql_requests.select_diff_by_action_id, {'action_id': action_id})
+    return sql_req.fetchall()

sql_requests.py

@@ -78,3 +78,33 @@ from (
 group by sum_score 
 order by timestamp desc 
 limit :limit);"""
+
+select_diff_by_action_id = """select 
+    new_stats.tag, 
+    new_stats.score as TotalExperience, 
+    old_stats.score as TotalExperienceOld, 
+    new_stats.score - old_stats.score as TotalExperienceDiff, 
+    new_stats.leaderboard_type as LeaderBoardType, 
+    new_stats.platform as Platform
+from (
+    select * 
+    from squads_stats_states 
+    where action_id = :action_id) new_stats 
+inner join 
+    (
+        select * 
+        from squads_stats_states 
+        where action_id in (
+                            select distinct squads_stats_states.action_id 
+                            from squads_stats_states, (
+                                                        select timestamp, platform, leaderboard_type, action_id 
+                                                        from squads_stats_states 
+                                                        where action_id = :action_id limit 1) sub1 
+                            where 
+                                squads_stats_states.platform = sub1.platform and 
+                                squads_stats_states.leaderboard_type = sub1.leaderboard_type and 
+                                squads_stats_states.action_id < sub1.action_id 
+                            order by squads_stats_states.action_id desc 
+                            limit 1)) old_stats 
+on new_stats.squadron_id = old_stats.squadron_id 
+where TotalExperienceDiff > 0;"""

web.py

@@ -40,6 +40,21 @@ class ActivityHtml:
         # what? f-strings? .format? never heard about them
 
 
+class ActivityDiff:
+    def on_get(self, req: falcon.request.Request, resp: falcon.response.Response, action_id: int) -> None:
+        """
+        Give squads tags and diff in their experience for specified action_id - 1 (smart -1)
+
+        :param action_id:
+        :param req:
+        :param resp:
+        :return:
+        """
+
+        resp.content_type = falcon.MEDIA_JSON
+        resp.text = json.dumps(model.get_diff_action_id(action_id))
+
+
 class JS:
     def on_get(self, req: falcon.request.Request, resp: falcon.response.Response, file: str) -> None:
         resp.content_type = falcon.MEDIA_JS
@@ -57,6 +72,7 @@ app = falcon.App()
 app.add_route('/activity/{leaderboard}', Activity())
 app.add_route('/js/{file}', JS())
 app.add_route('/{leaderboard}', ActivityHtml())
+app.add_route('/diff/{action_id}', ActivityDiff())
 
 if __name__ == '__main__':
     waitress.serve(app, host='127.0.0.1', port=9485)