# -*- coding: utf-8 -*-
# Copyright 2026 Nexa Systems Inc.
# License OPL-1 (Odoo Proprietary License v1.0)
#
# One-time port of Odoo Enterprise Planning data into the native Fusion Clock
# models, so a deployment that previously used the `planning` bridge keeps all
# its roles, employee role assignments and shifts after `planning` /
# `fusion_planning` are removed.
#
# Guarded: a no-op on Community / fresh installs where planning data is absent.
# Idempotent: a marker param stops it re-running.

import logging

from odoo import api, SUPERUSER_ID

_logger = logging.getLogger(__name__)


def migrate(cr, version):
    """Drop the legacy one-shift-per-day constraint and attempt the planning ->
    native port. The port (fusion.clock.schedule._fclk_port_planning_data) is
    marker-guarded and self-defers: because fusion_clock doesn't depend on
    planning, planning's ORM may not be loaded here, in which case the deploy
    shell step finishes the port. Lives in the model so it's unit-testable."""
    env = api.Environment(cr, SUPERUSER_ID, {})

    # Phase B drops the hard one-shift-per-day uniqueness so split/open shifts
    # are allowed. Odoo drops removed declarative constraints on upgrade, but be
    # explicit so the upgrade can never leave the old constraint behind.
    cr.execute(
        "ALTER TABLE fusion_clock_schedule "
        "DROP CONSTRAINT IF EXISTS fusion_clock_schedule_employee_date_unique")

    counts = env['fusion.clock.schedule'].sudo()._fclk_port_planning_data()
    if counts.get('deferred'):
        _logger.info("Fusion Clock: planning models not loaded during migration; "
                     "data will be ported by the deploy shell step.")
    else:
        _logger.info("Fusion Clock: planning -> native migration: %s", counts)