# -*- coding: utf-8 -*-
# Backfill one fp.certificate.part per existing certificate from its
# legacy singular fields, so pre-existing certs render identically under
# the new multi-part CoC. Lives in fusion_plating_jobs (not certificates)
# because it reads x_fc_job_id, a jobs-module field; the part-line table
# itself is created by the certificates upgrade, which runs first.
import logging

from odoo import api, SUPERUSER_ID

_logger = logging.getLogger(__name__)


def migrate(cr, version):
    env = api.Environment(cr, SUPERUSER_ID, {})
    if 'fp.certificate.part' not in env:
        return
    certs = env['fp.certificate'].search([])
    made = 0
    for cert in certs:
        if cert.part_line_ids:
            continue
        try:
            pid = cert._fp_resolve_part_identity()   # (number, name, serials)
        except Exception:
            pid = ('', '', '')
        job = cert.x_fc_job_id if 'x_fc_job_id' in cert._fields else False
        part = job.part_catalog_id if (job and 'part_catalog_id' in job._fields) else False
        try:
            desc = cert._fp_resolve_customer_facing_description() or cert.process_description or ''
        except Exception:
            desc = cert.process_description or ''
        spec = cert.customer_spec_id if 'customer_spec_id' in cert._fields else False
        env['fp.certificate.part'].create({
            'certificate_id': cert.id, 'sequence': 10,
            'part_catalog_id': part.id if part else False,
            'part_number': cert.part_number or (pid[0] or ''),
            'part_name': pid[1] or '',
            'description': desc,
            'serial': pid[2] or '',
            'customer_spec_id': spec.id if spec else False,
            'spec_reference': cert.spec_reference or '',
            'quantity_shipped': cert.quantity_shipped or 0,
            'nc_quantity': cert.nc_quantity or 0,
        })
        made += 1
    _logger.info('fp.certificate.part backfill: created %s part-line(s)', made)