"""Pre-migration: convert legacy act_window report actions to client actions.

In 19.0.1.1.1 we shipped 11 ``ir.actions.act_window`` records with
``view_mode='fusion_reports'``. Odoo's act_window resolver requires a
matching ``ir.ui.view`` record per view_mode, so clicking those menus
raised "View types not defined fusion_reports".

19.0.1.1.2 reissues the same xml_ids as ``ir.actions.client`` records
with ``tag='fusion_reports'``. Odoo refuses to update a record across
models, so this pre-migration drops the legacy records before the new
data file loads. Idempotent: safe to re-run.
"""

import logging

_logger = logging.getLogger(__name__)


LEGACY_XIDS = (
    'action_fusion_report_pnl',
    'action_fusion_report_balance_sheet',
    'action_fusion_report_trial_balance',
    'action_fusion_report_general_ledger',
    'action_fusion_report_cash_flow',
    'action_fusion_report_executive_summary',
    'action_fusion_report_annual_statements',
    'action_fusion_report_tax_summary',
    'action_fusion_report_aged_receivable',
    'action_fusion_report_aged_payable',
    'action_fusion_report_partner_ledger',
)


def migrate(cr, version):
    if not version:
        return
    deleted = 0
    for name in LEGACY_XIDS:
        cr.execute(
            """
            SELECT id, model, res_id
            FROM ir_model_data
            WHERE module = 'fusion_accounting_reports' AND name = %s
            """,
            (name,),
        )
        row = cr.fetchone()
        if not row:
            continue
        ir_md_id, model, res_id = row
        if model != 'ir.actions.act_window':
            continue
        cr.execute(
            "DELETE FROM ir_act_window WHERE id = %s",
            (res_id,),
        )
        cr.execute(
            "DELETE FROM ir_actions WHERE id = %s",
            (res_id,),
        )
        cr.execute(
            "DELETE FROM ir_model_data WHERE id = %s",
            (ir_md_id,),
        )
        deleted += 1
        _logger.info("Dropped legacy act_window for fusion_accounting_reports.%s", name)

    if deleted:
        _logger.info(
            "fusion_accounting_reports pre-migration: dropped %d legacy "
            "act_window records to make way for ir.actions.client variants.",
            deleted,
        )