account-financial-reporting/account_tax_balance/models/account_move.py

# Copyright 2016 Antonio Espinosa <antonio.espinosa@tecnativa.com>
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).

from odoo import api, fields, models


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

    @api.model
    def _selection_financial_type(self):
        return [
            ("other", "Other"),
            ("liquidity", "Liquidity"),
            ("receivable", "Receivable"),
            ("receivable_refund", "Receivable refund"),
            ("payable", "Payable"),
            ("payable_refund", "Payable refund"),
        ]

    financial_type = fields.Selection(
        selection="_selection_financial_type",
        compute="_compute_financial_type",
        store=True,
        readonly=True,
    )

    @api.depends(
        "line_ids.account_id.internal_type",
        "line_ids.balance",
        "line_ids.account_id.user_type_id.type",
    )
    def _compute_financial_type(self):
        def _balance_get(line_ids, internal_type):
            return sum(
                line_ids.filtered(
                    lambda x: x.account_id.internal_type == internal_type
                ).mapped("balance")
            )

        for move in self:
            internal_types = move.line_ids.mapped("account_id.internal_type")
            if "liquidity" in internal_types:
                move.financial_type = "liquidity"
            elif "payable" in internal_types:
                balance = _balance_get(move.line_ids, "payable")
                move.financial_type = "payable" if balance < 0 else "payable_refund"
            elif "receivable" in internal_types:
                balance = _balance_get(move.line_ids, "receivable")
                move.financial_type = (
                    "receivable" if balance > 0 else "receivable_refund"
                )
            else:
                move.financial_type = "other"