# -*- coding: utf-8 -*-
# Copyright 2026 Nexa Systems Inc.
# License OPL-1 (Odoo Proprietary License v1.0)
#
# Defensive pre-migration: re-link orphaned fusion_clock config-parameter
# external IDs.
#
# Booleans/floats saved through the Settings UI go in via set_param(), which
# creates the ir_config_parameter row WITHOUT an ir_model_data external id. If a
# param later also appears in the noupdate data/ir_config_parameter_data.xml,
# a plain `-u` can't match it by external id, treats it as new, and the INSERT
# trips the UNIQUE(key) constraint -> "Failed to load registry".
#
# This runs BEFORE the data files load: for every config record in the XML whose
# param already exists but whose external id is missing, we create the external
# id pointing at the existing param. The noupdate load then matches + skips it,
# so the existing (possibly customised) value is preserved.

import logging
import os

from lxml import etree

from odoo.modules.module import get_module_path

_logger = logging.getLogger(__name__)


def migrate(cr, version):
    module_path = get_module_path('fusion_clock')
    if not module_path:
        return
    xml_path = os.path.join(module_path, 'data', 'ir_config_parameter_data.xml')
    if not os.path.exists(xml_path):
        return

    tree = etree.parse(xml_path)
    fixed = 0
    for rec in tree.findall('.//record[@model="ir.config_parameter"]'):
        xmlid = rec.get('id')
        key_node = rec.find('./field[@name="key"]')
        if not xmlid or key_node is None or not (key_node.text or '').strip():
            continue
        key = key_node.text.strip()

        cr.execute("SELECT id FROM ir_config_parameter WHERE key = %s", (key,))
        param = cr.fetchone()
        if not param:
            continue  # not set yet -> the noupdate load will create it cleanly

        cr.execute(
            "SELECT id FROM ir_model_data WHERE module = 'fusion_clock' AND name = %s",
            (xmlid,))
        if cr.fetchone():
            continue  # already linked

        cr.execute("""
            INSERT INTO ir_model_data (module, name, model, res_id, noupdate, create_date, write_date)
            VALUES ('fusion_clock', %s, 'ir.config_parameter', %s, true, now(), now())
        """, (xmlid, param[0]))
        fixed += 1

    if fixed:
        _logger.info(
            "Fusion Clock: re-linked %s orphaned config-parameter external id(s).", fixed)