commit 86047b21c7959b2343cebdf098cc5b969e0f96bd · edavis.dev/bsky-tools

feed_manager.py

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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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       from feeds.ratio import RatioFeed

     

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       class FeedManager:

     

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           def __init__(self):

     
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       feed_manager.register(HomeRunsTeamFeed)

     

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       feed_manager.register(NoraZoneInteresting)

     

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       feed_manager.register(SevenDirtyWordsFeed)

     

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       feed_manager.register(RatioFeed)

+144

feeds/ratio.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 RatioFeed(BaseFeed):

     

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

     

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           SERVE_FEED_QUERY = """

     

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           with served as (

     

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             select

     

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               uri,

     

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               create_ts,

     

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               ( unixepoch('now') - create_ts ) as age_seconds,

     

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               replies,

     

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               quoteposts,

     

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               likes,

     

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               reposts,

     

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               ( replies + quoteposts ) / ( likes + reposts ) as ratio,

     

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               exp( -1 * ( ( unixepoch('now') - create_ts ) / ( 3600.0 * 16 ) ) ) as decay

     

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             from posts

     

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           )

     

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           select

     

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             *,

     

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             ( ratio * decay ) as score

     

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           from served

     

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           where replies > 15 and ratio > 2.5

     

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           order by score desc

     

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           limit :limit offset :offset

     

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           """

     

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           DELETE_OLD_POSTS_QUERY = """

     

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           delete from posts

     

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           where

     

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             create_ts < unixepoch('now', '-5 days')

     

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           """

     

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           def __init__(self):

     

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

     

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

     

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               self.db_cnx.pragma('wal_autocheckpoint', '0')

     

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               with self.db_cnx:

     

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                   self.db_cnx.execute("""

     

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                   create table if not exists posts (

     

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                     uri text, create_ts timestamp,

     

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                     replies float, likes float, reposts float, quoteposts float

     

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                   );

     

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                   create unique index if not exists uri_idx on posts(uri);

     

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                   """)

     

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               self.logger = logging.getLogger('feeds.ratio')

     

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           def process_commit(self, commit):

     

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               if commit['opType'] != 'c':

     

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                   return

     

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               subject_uri = None

     

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               is_reply = False

     

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               is_quotepost = False

     

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               if commit['collection'] in {'app.bsky.feed.like', 'app.bsky.feed.repost'}:

     

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                   record = commit.get('record')

     

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                   ts = self.safe_timestamp(record.get('createdAt')).timestamp()

     

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                   try:

     

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                       subject_uri = record['subject']['uri']

     

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                   except KeyError:

     

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                       return

     

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               elif commit['collection'] == 'app.bsky.feed.post':

     

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                   record = commit.get('record')

     

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                   ts = self.safe_timestamp(record.get('createdAt')).timestamp()

     

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                   if record.get('reply') is not None:

     

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                       is_reply = True

     

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                       try:

     

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                           subject_uri = record['reply']['parent']['uri']

     

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                       except KeyError:

     

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                           return

     

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                       # only count non-OP replies

     

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                       if subject_uri.startswith('at://' + commit['did']):

     

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                           return

     

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                   elif record.get('embed') is not None:

     

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                       is_quotepost = True

     

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                       t = record['embed']['$type']

     

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                       if t == 'app.bsky.embed.record':

     

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                           try:

     

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                               subject_uri = record['embed']['record']['uri']

     

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                           except KeyError:

     

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                               return

     

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                       elif t == 'app.bsky.embed.recordWithMedia':

     

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                           try:

     

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                               subject_uri = record['embed']['record']['record']['uri']

     

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                           except KeyError:

     

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                               return

     

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               if subject_uri is None:

     

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                   return

     

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               params = {

     

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                   'uri': subject_uri,

     

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                   'ts': ts,

     

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                   'is_reply': int(is_reply),

     

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                   'is_like': int(commit['collection'] == 'app.bsky.feed.like'),

     

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                   'is_repost': int(commit['collection'] == 'app.bsky.feed.repost'),

     

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                   'is_quotepost': int(is_quotepost),

     

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               }

     

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               self.transaction_begin(self.db_cnx)

     

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               self.db_cnx.execute("""

     

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               insert into posts(uri, create_ts, replies, likes, reposts, quoteposts)

     

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               values (:uri, :ts,

     

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                       case when :is_reply then 1 else 0 end,

     

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                       case when :is_like then 1 else 0 end,

     

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                       case when :is_repost then 1 else 0 end,

     

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                       case when :is_quotepost then 1 else 0 end)

     

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               on conflict(uri)

     

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               do update set

     

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                 replies = replies + case when :is_reply then 1 else 0 end,

     

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                 likes = likes + case when :is_like then 1 else 0 end,

     

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                 reposts = reposts + case when :is_repost then 1 else 0 end,

     

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                 quoteposts = quoteposts + case when :is_quotepost then 1 else 0 end

     

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               """, params)

     

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           def delete_old_posts(self):

     

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               self.db_cnx.execute(self.DELETE_OLD_POSTS_QUERY)

     

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           def commit_changes(self):

     

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               self.logger.debug('committing changes')

     

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               self.delete_old_posts()

     

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               self.transaction_commit(self.db_cnx)

     

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               self.wal_checkpoint(self.db_cnx, 'RESTART')

     

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

     

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               cur = self.db_cnx.execute(self.SERVE_FEED_QUERY, dict(limit=limit, offset=offset))

     

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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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               bindings = dict(limit=limit, offset=offset)

     

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               return apsw.ext.format_query_table(

     

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                   self.db_cnx, self.SERVE_FEED_QUERY, bindings,

     

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                   string_sanitize=2, text_width=9999, use_unicode=True

     

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               )