# 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 trytond.model import ModelSingleton, ModelSQL, ModelView, fields
from trytond.modules.company.model import (
    CompanyMultiValueMixin, CompanyValueMixin)
from trytond.pool import Pool
from trytond.pyson import Eval, Id
from trytond.transaction import Transaction

tax_roundings = [
    ('document', 'Per Document'),
    ('line', 'Per Line'),
    ]


class Configuration(
        ModelSingleton, ModelSQL, ModelView, CompanyMultiValueMixin):
    'Account Configuration'
    __name__ = 'account.configuration'
    default_account_receivable = fields.MultiValue(fields.Many2One(
            'account.account', "Default Account Receivable",
            domain=[
                ('closed', '!=', True),
                ('type.receivable', '=', True),
                ('party_required', '=', True),
                ('company', '=', Eval('context', {}).get('company', -1)),
                ]))
    default_account_payable = fields.MultiValue(fields.Many2One(
            'account.account', "Default Account Payable",
            domain=[
                ('closed', '!=', True),
                ('type.payable', '=', True),
                ('party_required', '=', True),
                ('company', '=', Eval('context', {}).get('company', -1)),
                ]))
    default_customer_tax_rule = fields.MultiValue(fields.Many2One(
            'account.tax.rule', "Default Customer Tax Rule",
            domain=[
                ('company', '=', Eval('context', {}).get('company', -1)),
                ('kind', 'in', ['sale', 'both']),
                ],
            help="Default customer tax rule for new parties."))
    default_supplier_tax_rule = fields.MultiValue(fields.Many2One(
            'account.tax.rule', "Default Supplier Tax Rule",
            domain=[
                ('company', '=', Eval('context', {}).get('company', -1)),
                ('kind', 'in', ['purchase', 'both']),
                ],
            help="Default supplier tax rule for new parties."))
    tax_rounding = fields.MultiValue(fields.Selection(
            tax_roundings, "Tax Rounding"))
    reconciliation_sequence = fields.MultiValue(fields.Many2One(
            'ir.sequence', "Reconciliation Sequence", required=True,
            domain=[
                ('company', 'in',
                    [Eval('context', {}).get('company', -1), None]),
                ('sequence_type', '=',
                    Id('account',
                        'sequence_type_account_move_reconciliation')),
                ]))

    @classmethod
    def multivalue_model(cls, field):
        pool = Pool()
        if field in {'default_account_receivable', 'default_account_payable'}:
            return pool.get('account.configuration.default_account')
        if field in {'default_customer_tax_rule', 'default_supplier_tax_rule'}:
            return pool.get('account.configuration.default_tax_rule')
        if field == 'reconciliation_sequence':
            return pool.get('account.configuration.sequence')
        return super(Configuration, cls).multivalue_model(field)

    @classmethod
    def default_tax_rounding(cls, **pattern):
        return cls.multivalue_model('tax_rounding').default_tax_rounding()

    @classmethod
    def default_reconciliation_sequence(cls, **pattern):
        return cls.multivalue_model(
            'reconciliation_sequence').default_reconciliation_sequence()


class ConfigurationDefaultAccount(ModelSQL, CompanyValueMixin):
    "Account Configuration Default Account"
    __name__ = 'account.configuration.default_account'
    default_account_receivable = fields.Many2One(
        'account.account', "Default Account Receivable",
        domain=[
            ('type.receivable', '=', True),
            ('party_required', '=', True),
            ('company', '=', Eval('company', -1)),
            ])
    default_account_payable = fields.Many2One(
        'account.account', "Default Account Payable",
        domain=[
            ('type.payable', '=', True),
            ('party_required', '=', True),
            ('company', '=', Eval('company', -1)),
            ])


class DefaultTaxRule(ModelSQL, CompanyValueMixin):
    "Account Configuration Default Tax Rule"
    __name__ = 'account.configuration.default_tax_rule'
    default_customer_tax_rule = fields.Many2One(
        'account.tax.rule', "Default Customer Tax Rule",
        domain=[
            ('company', '=', Eval('company', -1)),
            ('kind', 'in', ['sale', 'both']),
            ])
    default_supplier_tax_rule = fields.Many2One(
        'account.tax.rule', "Default Supplier Tax Rule",
        domain=[
            ('company', '=', Eval('company', -1)),
            ('kind', 'in', ['purchase', 'both']),
            ])


class ConfigurationTaxRounding(ModelSQL, CompanyValueMixin):
    'Account Configuration Tax Rounding'
    __name__ = 'account.configuration.tax_rounding'
    configuration = fields.Many2One('account.configuration', 'Configuration',
        required=True, ondelete='CASCADE',
        context={
            'company': Eval('company', -1),
            },
        depends={'company'})
    tax_rounding = fields.Selection(tax_roundings, 'Method', required=True)

    @classmethod
    def __register__(cls, module_name):
        sql_table = cls.__table__()
        cursor = Transaction().connection.cursor()

        super(ConfigurationTaxRounding, cls).__register__(module_name)

        table = cls.__table_handler__(module_name)

        # Migration from 4.2: rename method into tax_rounding
        if table.column_exist('method'):
            cursor.execute(*sql_table.update(
                    [sql_table.tax_rounding], [sql_table.method]))
            table.drop_column('method')

    @classmethod
    def default_tax_rounding(cls):
        return 'document'


class Sequence(ModelSQL, CompanyValueMixin):
    "Account Configuration Sequence"
    __name__ = 'account.configuration.sequence'
    reconciliation_sequence = fields.Many2One(
        'ir.sequence', "Reconciliation Sequence", required=True,
        domain=[
            ('company', 'in', [Eval('company', -1), None]),
            ('sequence_type', '=',
                Id('account', 'sequence_type_account_move_reconciliation')),
            ])

    @classmethod
    def default_reconciliation_sequence(cls):
        pool = Pool()
        ModelData = pool.get('ir.model.data')
        try:
            return ModelData.get_id(
                'account', 'sequence_account_move_reconciliation')
        except KeyError:
            return None