# -*- coding: utf-8 -*-
# Copyright 2025-2026 Nexa Systems Inc.
# License OPL-1 (Odoo Proprietary License v1.0)
#
# FIX: account_followup never clears followup_next_action_date
# ------------------------------------------------------------
# Odoo's account_followup module sets followup_next_action_date on
# res.partner when overdue invoices are detected, but never clears it
# when those invoices are paid.  The daily cron re-evaluates status
# via SQL so it *usually* skips zero-balance partners, but the stale
# field causes partners to appear in follow-up lists and manual sends
# can still fire emails to fully-paid clients.
#
# This override hooks into _invoice_paid_hook (called by the core
# reconciliation engine) and clears the follow-up date when the
# partner has no remaining receivable balance.

import logging

from odoo import models

_logger = logging.getLogger(__name__)


class AccountMove(models.Model):
    _inherit = 'account.move'

    def _invoice_paid_hook(self):
        super()._invoice_paid_hook()

        partner_model = self.env['res.partner']
        if 'followup_next_action_date' not in partner_model._fields:
            return

        partners = self.mapped('partner_id.commercial_partner_id').filtered(
            'followup_next_action_date'
        )
        if not partners:
            return

        for partner in partners:
            has_balance = self.env['account.move.line'].search_count([
                ('partner_id', '=', partner.id),
                ('account_id.account_type', '=', 'asset_receivable'),
                ('parent_state', '=', 'posted'),
                ('reconciled', '=', False),
                ('amount_residual', '>', 0),
            ], limit=1)
            if not has_balance:
                partner.write({'followup_next_action_date': False})
                _logger.info(
                    "Cleared follow-up for partner %s (ID %s) -- no outstanding balance",
                    partner.name, partner.id,
                )