commit 1a8da301028b2f2a4ba4995c76354706e924cd8a · edavis.dev/bsky-tools

+46

plc-activity.py

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       #!/usr/bin/env python3

     

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       from datetime import datetime, timezone

     

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       import sys

     

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       import json

     

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       import redis

     

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       import requests

     

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       import time

     

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       PLC_EXPORT_URL = 'https://plc.directory/export'

     

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       cids = []

     

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       redis_conn = redis.Redis()

     

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       redis_pipe = redis_conn.pipeline()

     

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       while True:

     

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           plc_latest = redis_conn.get('dev.edavis.muninsky.plc_latest')

     

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           assert plc_latest is not None, 'manually set the `plc_latest` redis key first'

     

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           ts = datetime.fromisoformat(plc_latest.decode())

     

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           ts = ts.isoformat('T', 'milliseconds').replace('+00:00', 'Z')

     

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           qs = '?after={ts}'.format(ts=ts)

     

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           print(f'Requesting {PLC_EXPORT_URL}{qs}', end=' ')

     

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           resp = requests.get(PLC_EXPORT_URL + qs)

     

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           resp.raise_for_status()

     

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           ops = 0

     

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           after = datetime.now(timezone.utc)

     

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           for line in resp.iter_lines():

     

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               doc = json.loads(line)

     

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               after = datetime.strptime(doc['createdAt'], '%Y-%m-%dT%H:%M:%S.%fZ').replace(tzinfo=timezone.utc)

     

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               if doc['cid'] in cids:

     

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                   continue

     

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               cids.insert(0, doc['cid'])

     

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               redis_pipe.incr('dev.edavis.muninsky.plc_ops')

     

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               ops += 1

     

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           print(f'Fetched {ops} operations')

     

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           sys.stdout.flush()

     

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           cids = cids[:25]

     

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           redis_pipe.set('dev.edavis.muninsky.plc_latest', after.isoformat())

     

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           redis_pipe.execute()

     

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           time.sleep(60)