from trytond.model import DeactivableMixin, ModelSQL, ModelView, fields


DGII_FORMS = [
    ('', ''),
    ('606', '606 - Compras y Gastos'),
    ('607', '607 - Ventas e Ingresos'),
    ('608', '608 - NCF Anulados'),
    ('609', '609 - Pagos al Exterior'),
    ('it1', 'IT-1 - Declaracion mensual ITBIS'),
    ('it1_annex_a', 'IT-1 Anexo A'),
    ('ir17', 'IR-17 - Otras Retenciones y Retribuciones Complementarias'),
    ('ir18', 'IR-18 - Dividendos'),
    ('ir13', 'IR-13 - Retenciones del Estado'),
    ('isc', 'ISC - Selectivo al Consumo'),
    ('act', 'ACT - Impuesto sobre Activos'),
    ('ir2', 'IR-2 - Impuesto sobre la Renta Personas Juridicas'),
]

DGII_AMOUNT_SOURCES = [
    ('', ''),
    ('tax_base', 'Base imponible'),
    ('tax_amount', 'Monto impuesto'),
    ('withholding_amount', 'Monto retenido'),
    ('perception_amount', 'Monto percibido'),
    ('account_balance', 'Saldo contable'),
    ('informative', 'Informativo'),
]

DGII_OPERATORS = [
    ('+', 'Suma'),
    ('-', 'Resta'),
    ('info', 'Informativo'),
]

DGII_FLOWS = [
    ('', ''),
    ('sale', 'Venta'),
    ('purchase', 'Compra'),
    ('payment', 'Pago o cobro'),
    ('bank', 'Cargo bancario'),
    ('asset', 'Transferencia de activo'),
    ('annual', 'Declaracion anual'),
]


class DgiiTaxMapping(DeactivableMixin, ModelSQL, ModelView):
    "DGII Tax Mapping"
    __name__ = 'account.do.dgii.tax.mapping'

    tax_template = fields.Many2One(
        'account.tax.template', 'Tax Template', required=True,
        ondelete='CASCADE',
        help='Impuesto de account_do que alimenta esta casilla DGII.')
    account_template = fields.Many2One(
        'account.account.template', 'Account Template',
        help='Cuenta contable principal usada como trazabilidad del mapeo.')
    form = fields.Selection(
        DGII_FORMS, 'DGII Form', required=True, sort=False)
    box = fields.Char(
        'DGII Box', required=True, size=80,
        help='Numero de casilla oficial o nombre tecnico del campo.')
    box_label = fields.Char('DGII Box Label', required=True, size=180)
    amount_source = fields.Selection(
        DGII_AMOUNT_SOURCES, 'Amount Source', required=True, sort=False)
    operator = fields.Selection(
        DGII_OPERATORS, 'Operator', required=True, sort=False)
    flow = fields.Selection(
        DGII_FLOWS, 'Fiscal Flow', required=True, sort=False)
    effective_from = fields.Date('Effective From')
    effective_to = fields.Date('Effective To')
    legal_basis = fields.Text('Legal Basis')
    notes = fields.Text('Notes')

    @staticmethod
    def default_operator():
        return '+'

    @staticmethod
    def default_amount_source():
        return 'tax_amount'

    @staticmethod
    def default_flow():
        return 'sale'

    def get_rec_name(self, name):
        return '%s %s - %s' % (
            self.form.upper(), self.box, self.tax_template.rec_name)