Restore shared Dominican tax classification

tax.py

@@ -0,0 +1,162 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from sql import Null, Table
+
+from trytond.model import fields
+from trytond.pool import Pool, PoolMeta
+from trytond.transaction import Transaction
+
+
+TAX_KIND = [
+    ('', ''),
+    ('itbis', 'ITBIS'),
+    ('itbis_withholding', 'ITBIS Withholding'),
+    ('itbis_withholding_acquirer', 'ITBIS Acquirer Withholding'),
+    ('isr_withholding', 'ISR Withholding'),
+    ('isc', 'Selective Consumption Tax (ISC)'),
+    ('cdt', 'INDOTEL Contribution (CDT)'),
+    ('tip', 'Statutory Tip'),
+    ('others', 'Other Taxes'),
+]
+
+TAX_TEMPLATE_KINDS = {
+    'itbis': {
+        'do_tax_itbis_18_venta', 'do_tax_itbis_16_venta',
+        'do_tax_itbis_18_compra', 'do_tax_itbis_16_compra',
+        'do_tax_itbis_exento', 'do_tax_itbis_tasa_cero',
+    },
+    'itbis_withholding': {
+        'do_tax_ret_itbis_30', 'do_tax_ret_itbis_100_inf',
+        'do_tax_ret_itbis_75_inf', 'do_tax_ret_itbis_75_inf_16',
+        'do_tax_ret_itbis_100_goods_18',
+        'do_tax_ret_itbis_100_goods_16', 'do_tax_ret_itbis_rst_18',
+        'do_tax_ret_itbis_rst_16', 'do_tax_ret_itbis_insurance_100',
+        'do_tax_ret_itbis_airline_100',
+        'do_tax_ret_itbis_society_30_suf', 'do_tax_ret_itbis_hotel_100',
+        'do_tax_ret_itbis_state_100',
+    },
+    'isr_withholding': {
+        'do_tax_ret_isr_hon_5', 'do_tax_ret_isr_serv_10',
+        'do_tax_ret_isr_serv_15', 'do_tax_ret_isr_div_10',
+        'do_tax_ret_isr_int_10', 'do_tax_ret_isr_alq_10',
+        'do_tax_ret_isr_alq_15', 'do_tax_ret_isr_est_15',
+        'do_tax_ret_isr_est_5', 'do_tax_ret_isr_bovine_1',
+        'do_tax_ret_isr_exporter_25', 'do_tax_ret_isr_int_pj_1',
+        'do_tax_ret_isr_premios_25', 'do_tax_ret_isr_premios_10',
+        'do_tax_ret_isr_premios_15', 'do_tax_ret_isr_betting_15',
+        'do_tax_ret_isr_tragamonedas_10',
+        'do_tax_ret_isr_tragamonedas_15',
+        'do_tax_ret_isr_other_income_10',
+        'do_tax_ret_isr_other_income_15', 'do_tax_ret_isr_ext_27',
+        'do_tax_ret_isr_ext_15', 'do_tax_ret_isr_ext_10',
+    },
+    'isc': {
+        'do_tax_isc_bebidas_alc', 'do_tax_isc_tabaco',
+        'do_tax_isc_telecom', 'do_tax_isc_combustibles_16',
+        'do_tax_isc_avtur_65', 'do_tax_isc_fuel_rd2_gallon',
+        'do_tax_ret_isc_insurance_100', 'do_tax_isc_vehiculos',
+    },
+    'cdt': {'do_tax_cdt_indotel'},
+    'tip': {'do_tax_propina_10'},
+    'others': {
+        'do_tax_cheques_015', 'do_tax_cheques_020',
+        'do_tax_activos_1', 'do_tax_iti_3',
+    },
+}
+
+
+def _set_template_kinds(table):
+    cursor = Transaction().connection.cursor()
+    model_data = Table('ir_model_data')
+    kind_by_identifier = {
+        identifier + suffix: tax_kind
+        for tax_kind, identifiers in TAX_TEMPLATE_KINDS.items()
+        for identifier in identifiers
+        for suffix in ('', '_en', '_es_419')
+    }
+    cursor.execute(*model_data.select(
+            model_data.db_id, model_data.fs_id,
+            where=model_data.module == 'account_do'))
+    for template_id, identifier in cursor.fetchall():
+        tax_kind = kind_by_identifier.get(identifier)
+        if not tax_kind:
+            continue
+        cursor.execute(*table.update(
+                [table.tax_kind], [tax_kind],
+                where=(table.id == template_id)
+                & ((table.tax_kind == Null) | (table.tax_kind == ''))))
+
+
+def _kind_from_values(values):
+    pool = Pool()
+    TaxGroup = pool.get('account.tax.group')
+    group = values.get('group')
+    if isinstance(group, int):
+        group = TaxGroup(group)
+    code = getattr(group, 'code', None)
+    if code == 'ITBIS':
+        amount = values.get('rate') or values.get('amount') or 0
+        return 'itbis_withholding' if amount < 0 else 'itbis'
+    if code in {'ISR', 'ISREXT'}:
+        return 'isr_withholding'
+    if code == 'ISC':
+        return 'isc'
+    if code == 'CDT':
+        return 'cdt'
+    if code == 'OTROS':
+        name = (values.get('name') or '').casefold()
+        if 'propina' in name or 'tip' in name:
+            return 'tip'
+        if 'vehículo' in name or 'vehicle' in name:
+            return 'isc'
+        return 'others'
+    return ''
+
+
+class TaxTemplate(metaclass=PoolMeta):
+    __name__ = 'account.tax.template'
+
+    tax_kind = fields.Selection(TAX_KIND, 'Tax Kind', sort=False)
+
+    @classmethod
+    def __register__(cls, module_name):
+        super().__register__(module_name)
+        _set_template_kinds(cls.__table__())
+
+    @classmethod
+    def create(cls, vlist):
+        vlist = [values.copy() for values in vlist]
+        for values in vlist:
+            values.setdefault('tax_kind', _kind_from_values(values))
+        return super().create(vlist)
+
+    def _get_tax_value(self, tax=None):
+        values = super()._get_tax_value(tax=tax)
+        if not tax or tax.tax_kind != self.tax_kind:
+            values['tax_kind'] = self.tax_kind
+        return values
+
+
+class Tax(metaclass=PoolMeta):
+    __name__ = 'account.tax'
+
+    tax_kind = fields.Selection(TAX_KIND, 'Tax Kind', sort=False)
+
+    @classmethod
+    def __register__(cls, module_name):
+        super().__register__(module_name)
+        table = cls.__table__()
+        template = Table('account_tax_template')
+        cursor = Transaction().connection.cursor()
+        cursor.execute(*table.join(
+                template, condition=template.id == table.template).select(
+                    table.id, template.tax_kind,
+                    where=(table.template != Null)
+                    & (template.tax_kind != Null)
+                    & (template.tax_kind != '')
+                    & ((table.tax_kind == Null) | (table.tax_kind == ''))))
+        for tax_id, tax_kind in cursor.fetchall():
+            cursor.execute(*table.update(
+                    [table.tax_kind], [tax_kind],
+                    where=table.id == tax_id))