commit c8eb11f603134e3ee8bd762603299ae46217c6cc · edavis.dev/bsky-tools

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feed_manager.py

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       from feeds.battle import BattleFeed

     

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       from feeds.rapidfire import RapidFireFeed

     

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       from feeds.popular import PopularFeed

     

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       from feeds.homeruns import HomeRunsTeamFeed

     

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       from feeds.norazone_interesting import NoraZoneInteresting

     

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       from feeds.sevendirtywords import SevenDirtyWordsFeed

     
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                       pass

     

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       feed_manager = FeedManager()

     

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       feed_manager.register(PopularFeed)

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feeds/popular.py

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       import logging

     

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       import apsw

     

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       import apsw.ext

     

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       from . import BaseFeed

     

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       class PopularFeed(BaseFeed):

     

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           FEED_URI = 'at://did:plc:4nsduwlpivpuur4mqkbfvm6a/app.bsky.feed.generator/popular'

     

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           def __init__(self):

     

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               # use the posts from the most-liked feed for this

     

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               self.db_cnx = apsw.Connection('db/mostliked.db')

     

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               self.db_cnx.pragma('foreign_keys', True)

     

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               self.db_cnx.pragma('journal_mode', 'WAL')

     

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           def process_commit(self, commit):

     

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               pass

     

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           def commit_changes(self):

     

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               pass

     

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           def generate_sql(self, limit, offset, langs):

     

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               bindings = []

     

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               sql = """

     

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               select posts.uri, create_ts, likes, lang, unixepoch('now') - create_ts as age_seconds,

     

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               exp( -1 * ( ( unixepoch('now') - create_ts ) / 1800.0 ) ) as decay,

     

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               likes * exp( -1 * ( ( unixepoch('now') - create_ts ) / 1800.0 ) ) as score

     

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               from posts

     

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               left join langs on posts.uri = langs.uri

     

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               where

     

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               """

     

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               if not '*' in langs:

     

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                   lang_values = list(langs.values())

     

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                   bindings.extend(lang_values)

     

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                   sql += " OR ".join(['lang = ?'] * len(lang_values))

     

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               else:

     

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                   sql += " 1=1 "

     

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               sql += """

     

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               order by score desc

     

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               limit ? offset ?

     

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               """

     

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               bindings.extend([limit, offset])

     

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               return sql, bindings

     

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           def serve_feed(self, limit, offset, langs):

     

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               sql, bindings = self.generate_sql(limit, offset, langs)

     

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               cur = self.db_cnx.execute(sql, bindings)

     

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               return [row[0] for row in cur]

     

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           def serve_feed_debug(self, limit, offset, langs):

     

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               sql, bindings = self.generate_sql(limit, offset, langs)

     

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               return apsw.ext.format_query_table(

     

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                   self.db_cnx, sql, bindings,

     

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                   string_sanitize=2, text_width=9999, use_unicode=True

     

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               )