# -*- coding: utf-8 -*-
# Copyright 2026 Nexa Systems Inc.
# License OPL-1 (Odoo Proprietary License v1.0)
#
# 19.0.10.24.0 — Plant-view Shop Floor kanban redesign.
# Backfill fp.job.step.last_activity_at from write_date so existing
# in-progress steps don't immediately trip the S16 idle-warning gate
# (8 hours since last activity) on first compute after deploy.

import logging
_logger = logging.getLogger(__name__)


def migrate(cr, version):
    cr.execute("""
        UPDATE fp_job_step
           SET last_activity_at = write_date
         WHERE last_activity_at IS NULL
    """)
    cr.execute("SELECT count(*) FROM fp_job_step WHERE last_activity_at IS NULL")
    remaining = cr.fetchone()[0]
    if remaining:
        _logger.warning(
            "%d fp.job.step rows still have NULL last_activity_at after "
            "backfill (no write_date?). These will trip the idle gate "
            "on first compute.", remaining,
        )
    _logger.info("Backfilled last_activity_at on fp.job.step from write_date")