61 lines
1.6 KiB
Python
61 lines
1.6 KiB
Python
from __future__ import annotations
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import logging
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import time
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from sqlmodel import Session
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from app.core.config import settings
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from app.core.db import engine
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from app.models import TerminalMessageRaw
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from app.mqtt.parsers.mixed import parse_mixed_payload
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from app.mqtt.repository import (
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fetch_pending_rows_for_update,
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mark_failed,
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mark_succeeded,
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update_device_state_from_events,
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)
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logger = logging.getLogger(__name__)
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def _process_one_row(*, session: Session, row: TerminalMessageRaw) -> None:
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try:
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events = parse_mixed_payload(row.payload_bytes)
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update_device_state_from_events(session=session, row=row, events=events)
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mark_succeeded(session=session, row=row)
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except Exception as exc: # pragma: no cover - safety net path
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mark_failed(
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session=session,
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row=row,
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parse_error=str(exc),
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)
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session.commit()
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def process_pending_batch(*, session: Session, batch_size: int) -> int:
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rows = fetch_pending_rows_for_update(session=session, batch_size=batch_size)
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for row in rows:
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_process_one_row(session=session, row=row)
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return len(rows)
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def run() -> None:
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logging.basicConfig(level=logging.INFO)
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sleep_seconds = max(settings.PARSER_POLL_INTERVAL_MS, 50) / 1000.0
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while True:
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with Session(engine) as session:
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processed = process_pending_batch(
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session=session, batch_size=settings.PARSER_BATCH_SIZE
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)
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if processed == 0:
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time.sleep(sleep_seconds)
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else:
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logger.info("Processed %s pending MQTT raw messages", processed)
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if __name__ == "__main__":
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run()
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