trytonpsk-staff_payroll/payroll.py

# This file is part of Tryton.  The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.
import datetime
from decimal import Decimal

from trytond.model import Workflow, ModelView, ModelSQL, fields
from trytond.pyson import Bool, Eval, If, Id
from trytond.pool import Pool, PoolMeta
from trytond.transaction import Transaction
from trytond.modules.company import CompanyReport
from trytond.wizard import Wizard, StateView, StateTransition, Button
from trytond.i18n import gettext
from .exceptions import (PayrollDeleteError, PayrollPeriodCloseError,
                         PayrollExistPeriodError, PayrollMissingSequence, WageTypeValidationError,
                         PayrollValidationError)

STATES = {'readonly': (Eval('state') != 'draft')}

_DEFAULT_WORK_DAY = 8

_ZERO = Decimal('0.0')


class Payroll(Workflow, ModelSQL, ModelView):
    "Staff Payroll"
    __name__ = "staff.payroll"
    _rec_name = 'number'
    number = fields.Char('Number', readonly=True, help="Secuence",
                         select=True)
    period = fields.Many2One('staff.payroll.period', 'Period',
                             required=True, states={
                                 'readonly': Eval('state') != 'draft',
                                 })
    employee = fields.Many2One('company.employee', 'Employee',
                               states=STATES, required=True, depends=['state'], select=True)
    kind = fields.Selection([
            ('normal', 'Normal'),
            ('special', 'Special'),
            ], 'Kind', required=True, select=True, states=STATES,
            help="Special allow overlap dates with another payroll")
    contract = fields.Many2One('staff.contract', 'Contract',
                               select=True, domain=[
                                   ('employee', '=', Eval('employee')),
                                   ])
    start = fields.Date('Start', states=STATES, required=True)
    end = fields.Date('End', states=STATES, required=True)
    date_effective = fields.Date('Date Effective', states=STATES,
                                 required=True)
    description = fields.Char('Description', states=STATES, select=True)
    lines = fields.One2Many('staff.payroll.line', 'payroll', 'Wage Line',
                            states=STATES, depends=['employee', 'state'])
    gross_payments = fields.Function(fields.Numeric('Gross Payments',
                                                    digits=(16, 2), depends=['lines', 'states']), 'on_change_with_amount')
    total_deductions = fields.Function(fields.Numeric(
            'Total Deductions', digits=(16, 2), depends=['lines', 'states']),
            'on_change_with_amount')
    net_payment = fields.Function(fields.Numeric('Net Payment',
                                                 digits=(16, 2), depends=['lines', 'states']),
                                  'get_net_payment')
    total_cost = fields.Function(fields.Numeric('Total Cost',
                                                digits=(16, 2), depends=['lines', 'states']),
                                 'get_total_cost')
    currency = fields.Many2One('currency.currency', 'Currency',
                               required=False,
                               states={
                                   'readonly': ((Eval('state') != 'draft')
                                                | (Eval('lines', [0]) & Eval('currency'))),
                                   }, depends=['state'])
    worked_days = fields.Function(fields.Integer('Worked Days',
                                                 depends=['start', 'end', 'state']),
                                  'on_change_with_worked_days')
    state = fields.Selection([
            ('draft', 'Draft'),
            ('processed', 'Processed'),
            ('cancel', 'Cancel'),
            ('posted', 'Posted'),
            ], 'State', readonly=True)
    journal = fields.Many2One('account.journal', 'Journal', required=True,
                              states=STATES)
    company = fields.Many2One('company.company', 'Company', required=True,
                              states={
                                  'readonly': (Eval('state') != 'draft') | Eval('lines', [0]),
                                  },
                              domain=[
                                  ('id', If(Eval('context', {}).contains('company'), '=', '!='),
                                   Eval('context', {}).get('company', 0)),
                                  ],
                              depends=['state'])
    move = fields.Many2One('account.move', 'Move', readonly=True)
    origin = fields.Reference('Origin', selection='get_origin',
                              select=True, depends=['state'],
                              states={
                                  'readonly': Eval('state') != 'draft',
                                  })
    notes = fields.Text("Notes", states=STATES)

    @classmethod
    def __setup__(cls):
        super(Payroll, cls).__setup__()
        cls._order = [
            ('period', 'DESC'),
            ('start', 'DESC'),
        ]
        cls._transitions |= set((
            ('draft', 'cancel'),
            ('cancel', 'draft'),
            ('draft', 'processed'),
            ('processed', 'posted'),
            ('posted', 'draft'),
            ('processed', 'draft'),
        ))
        cls._buttons.update({
            'draft': {
                'invisible': Eval('state') == 'draft',
            },
            'post': {
                'invisible': Eval('state') != 'processed',
            },
            'cancel': {
                'invisible': Eval('state') != 'draft',
            },
            'process': {
                'invisible': Eval('state') != 'draft',
            },
        })

    @staticmethod
    def default_company():
        return Transaction().context.get('company')

    @staticmethod
    def default_kind():
        return 'normal'

    @staticmethod
    def default_state():
        return 'draft'

    @staticmethod
    def _get_origin():
        'Return list of Model names for origin Reference'
        return []

    @staticmethod
    def default_journal():
        Configuration = Pool().get('staff.configuration')
        configuration = Configuration(1)
        if configuration.default_journal:
            return configuration.default_journal.id

    @staticmethod
    def default_currency():
        Company = Pool().get('company.company')
        if Transaction().context.get('company'):
            company = Company(Transaction().context['company'])
            return company.currency.id

    @classmethod
    def delete(cls, records):
        # Cancel before delete
        cls.cancel(records)
        for payroll in records:
            if payroll.state != 'cancel':
                raise PayrollDeleteError(
                    gettext('staff_payroll.msg_delete_cancel', payroll=payroll.rec_name))
            if payroll.move:
                raise PayrollDeleteError(
                    gettext('staff_payroll.msg_existing_move', payroll=payroll.rec_name))
        super(Payroll, cls).delete(records)

    @classmethod
    def validate(cls, payrolls):
        super(Payroll, cls).validate(payrolls)
        for payroll in payrolls:
            payroll.check_start_end()

    @classmethod
    def search_rec_name(cls, name, clause):
        if clause[1].startswith('!') or clause[1].startswith('not '):
            bool_op = 'AND'
        else:
            bool_op = 'OR'
        return [
            bool_op,
            ('employee',) + tuple(clause[1:]),
            ('number',) + tuple(clause[1:]),
        ]

    @classmethod
    @ModelView.button
    @Workflow.transition('draft')
    def draft(cls, records):
        pass

    @classmethod
    @ModelView.button
    @Workflow.transition('cancel')
    def cancel(cls, records):
        pass

    @classmethod
    @ModelView.button
    @Workflow.transition('processed')
    def process(cls, records):
        Payroll = Pool().get('staff.payroll')
        for payroll in records:
            payrolls = Payroll.search([
                ('period', '=', payroll.period.id),
                ('contract', '=', payroll.contract.id),
                ('kind', '=', 'normal'),
            ])
            if len(payrolls) > 1:
                raise PayrollExistPeriodError(
                    gettext('staff_payroll.msg_payroll_exist_period'))
            if payroll.period.state == 'closed':
                raise PayrollPeriodCloseError(
                    gettext('staff_payroll.msg_period_closed'))
            payroll.set_number()

    @classmethod
    @ModelView.button
    @Workflow.transition('posted')
    def post(cls, records):
        for payroll in records:
            payroll.create_move()

    @fields.depends('start', 'end')
    def on_change_start(self):
        if not self.start:
            return
        Configuration = Pool().get('staff.configuration')
        configuration = Configuration(1)
        period_days = configuration.default_liquidation_period
        if period_days and not self.end:
            self.end = self.start + datetime.timedelta(period_days - 1)

    @classmethod
    def get_origin(cls):
        Model = Pool().get('ir.model')
        models = cls._get_origin()
        models = Model.search([
                ('model', 'in', models),
        ])
        return [(None, '')] + [(m.model, m.name) for m in models]

    def set_number(self):
        if self.number:
            return
        pool = Pool()
        Configuration = pool.get('staff.configuration')
        configuration = Configuration(1)
        if not configuration.staff_payroll_sequence:
            raise PayrollMissingSequence(gettext('msg_sequence_missing'))
        seq = configuration.staff_payroll_sequence.get()
        self.write([self], {'number': seq})

    @fields.depends('start', 'end')
    def on_change_with_worked_days(self, name=None):
        if self.start and self.end and self.employee:
            return self.get_days(self.start, self.end)

    def get_salary_full(self, wage):
        """
        Return a dict with sum of total amount of all wages defined
            as salary on context of wage
        """
        salary_full = self.compute_salary_full(wage)
        return {'salary': salary_full}

    def compute_salary_full(self, wage):
        wages_ids = [s.id for s in wage.concepts_salary]
        if wages_ids:
            salary_full = sum([
                line.amount for line in self.lines if line.wage_type.id in wages_ids
            ])
        else:
            salary_full = self.contract.get_salary_in_date(self.end) or 0
        return salary_full

    def create_move(self):
        pool = Pool()
        Move = pool.get('account.move')
        Period = pool.get('account.period')
        if self.move:
            return
        period_id = Period.find(self.company.id, date=self.date_effective)
        move_lines = self.get_moves_lines()
        move, = Move.create([{
            'journal': self.journal.id,
            'origin': str(self),
            'period': period_id,
            'date': self.date_effective,
            'state': 'draft',
            'description': self.description,
            'lines': [('create', move_lines)],
        }])
        self.write([self], {'move': move.id})
        Move.post([self.move])

    def get_moves_lines(self):
        lines_moves = {}
        mandatory_wages = dict([(m.wage_type.id, m.party)
                                for m in self.employee.mandatory_wages])
        employee_id = self.employee.party.id

        Configuration = Pool().get('staff.configuration')
        configuration = Configuration(1)
        entity_in_line = configuration.expense_contribution_entity
        for line in self.lines:
            if line.amount <= 0:
                continue
            if line.party:
                party_id = line.party.id
            else:
                if mandatory_wages.get(line.wage_type.id):
                    party_id = mandatory_wages[line.wage_type.id].id
                else:
                    party_id = employee_id

            expense = Decimal(0)
            if not line.wage_type:
                continue
            if line.wage_type.expense_formula:
                expense = line.get_expense_amount()

            if line.wage_type.definition == 'payment':
                amount_debit = line.amount + expense
            else:
                if expense:
                    amount_debit = expense
                elif line.wage_type.debit_account:
                    amount_debit = line.amount

            amount_credit = line.amount + expense
            debit_acc = line.wage_type.debit_account

            try:
                if debit_acc and amount_debit > _ZERO:
                    if line.wage_type.definition == 'discount':
                        amount_debit = amount_debit * (-1)
                    if debit_acc.id not in lines_moves.keys():
                        if entity_in_line:
                            p = party_id
                        else:
                            p = employee_id

                        lines_moves[debit_acc.id] = {
                            employee_id: line.get_move_line(
                                debit_acc, p,
                                ('debit', amount_debit)
                                )}
                    else:
                        line.update_move_line(
                            lines_moves[debit_acc.id][employee_id],
                            {'debit': amount_debit, 'credit': _ZERO}
                        )

                credit_acc = line.wage_type.credit_account
                if amount_credit > _ZERO:
                    line_credit_ready = False
                    if credit_acc:
                        if credit_acc.id not in lines_moves.keys():
                            lines_moves[credit_acc.id] = {
                                    party_id: line.get_move_line(
                                        credit_acc, party_id, ('credit',
                                                               amount_credit)
                                        )}
                            line_credit_ready = True
                        else:
                            if party_id not in lines_moves[credit_acc.id].keys():
                                lines_moves[credit_acc.id].update({
                                        party_id: line.get_move_line(
                                            credit_acc, party_id, (
                                                'credit', amount_credit)
                                            )
                                        })
                                line_credit_ready = True
                    if line.wage_type.definition != 'payment':
                        deduction_acc = line.wage_type.deduction_account
                        if deduction_acc:
                            if deduction_acc.id not in lines_moves.keys():
                                lines_moves[deduction_acc.id] = {
                                    employee_id: line.get_move_line(
                                        deduction_acc, employee_id, (
                                            'credit', -line.amount),
                                        )}
                                line_credit_ready = True
                            else:
                                lines_moves[deduction_acc.id][employee_id]['credit'] -= line.amount

                    if credit_acc and not line_credit_ready:
                        lines_moves[credit_acc.id][party_id]['credit'] += amount_credit
            except:
                raise WageTypeValidationError(
                    gettext('staff_payroll.bad_configuration_wage_type', wage=line.wage_type.name))

        result = []
        for r in lines_moves.values():
            _line = r.values()
            if _line[0]['debit'] > 0 and _line[0]['credit'] > 0:
                new_value = _line[0]['debit'] - _line[0]['credit']
                if new_value >= 0:
                    _line[0]['debit'] = abs(new_value)
                    _line[0]['credit'] = 0
                else:
                    _line[0]['credit'] = abs(new_value)
                    _line[0]['debit'] = 0
            result.extend(_line)
        return result

    def _create_payroll_lines(self, wages, extras, discounts=None):
        PayrollLine = Pool().get('staff.payroll.line')
        values = []
        salary_args = {}
        salary_in_date = self.contract.get_salary_in_date(self.end)
        get_line = self.get_line
        get_line_quantity = self.get_line_quantity
        get_line_quantity_special = self.get_line_quantity_special
        get_salary_full = self.get_salary_full
        values_append = values.append
        for wage, party, fix_amount in wages:
            if not fix_amount:
                salary_args = get_salary_full(wage)
                if wage.salary_constitute:
                    salary_args['salary'] = salary_in_date

                # Este metodo instancia podria pasarse a un metodo de clase
                unit_value = wage.compute_unit_price(salary_args)
            else:
                unit_value = fix_amount

            discount = None
            if discounts and discounts.get(wage.id):
                discount = discounts.get(wage.id)
            qty = get_line_quantity_special(wage)
            if qty == 0:
                qty = get_line_quantity(
                    wage, self.start, self.end, extras, discount
                )
            line_ = get_line(wage, qty, unit_value, party)
            values_append(line_)
        PayrollLine.create(values)

    def set_preliquidation(self, extras, discounts=None):
        wage_salary = []
        wage_no_salary = []

        for concept in self.employee.mandatory_wages:
            wage_type = concept.wage_type
            if concept.wage_type.salary_constitute:
                wage_salary.append(
                    (wage_type, concept.party, concept.fix_amount))
            else:
                wage_no_salary.append(
                    (wage_type, concept.party, concept.fix_amount))

        self._create_payroll_lines(wage_salary, extras, discounts)
        self._create_payroll_lines(wage_no_salary, extras, discounts)

    def update_preliquidation(self, extras):
        for line in self.lines:
            if line.wage_type.salary_constitute:
                continue
            salary_args = self.get_salary_full(line.wage_type)
            unit_value = line.wage_type.compute_unit_price(salary_args)
            unit_value = self._validate_amount_wage(line.wage_type, unit_value)
            line.write([line], {
                'unit_value': unit_value,
            })

    def get_line(self, wage, qty, unit_value, party=None):
        res = {
            'sequence': wage.sequence,
            'payroll': self.id,
            'wage_type': wage.id,
            'description': wage.name,
            'quantity': Decimal(str(round(qty, 2))),
            'unit_value': Decimal(str(round(unit_value, 2))),
            'uom': wage.uom,
            'receipt': wage.receipt,
        }
        if party:
            res['party'] = party.id
        return res

    def _get_line_quantity(self, quantity_days, wage, extras, discount):
        Configuration = Pool().get('staff.configuration')
        config = Configuration(1)
        default_hour_workday = config.default_hour_workday or _DEFAULT_WORK_DAY
        quantity = wage.default_quantity or 0
        if quantity_days < 0:
            quantity_days = 0
        if wage.uom.id == Id('product', 'uom_day').pyson():
            quantity = quantity_days
            if discount:
                quantity -= discount
        elif wage.uom.id == Id('product', 'uom_hour').pyson():
            if wage.type_concept != 'extras':
                quantity = quantity_days * default_hour_workday
                if discount:
                    quantity -= discount
            else:
                key_ = [key for key in extras.keys(
                ) if wage.name.lower().count(key) > 0]
                if key_:
                    key_ext = key_[0]
                    extras_ = extras.get(key_ext)
                else:
                    extras_ = extras.get((wage.name.lower()))
                if extras_ and self.employee.position and self.employee.position.extras:
                    quantity = extras_
        return quantity

    def get_line_quantity(self, wage, start=None, end=None, extras=None, discount=None):
        quantity = wage.default_quantity or 0
        quantity_days = self.get_days(start, end)
        quantity = self._get_line_quantity(
            quantity_days, wage, extras, discount)
        return quantity

    def get_line_quantity_special(self, wage):
        quantity_days = 0
        if self.contract and self.date_effective and wage.type_concept == 'special':
            quantity_days = (self.date_effective
                             - self.contract.start_date).days
            if quantity_days > wage.limit_days:
                quantity_days = wage.limit_days
        return quantity_days

    @fields.depends('lines')
    def on_change_with_amount(self, name=None):
        res = []
        for line in self.lines:
            if not line.amount:
                continue
            if name == 'gross_payments':
                if line.wage_type.definition == 'payment' and line.receipt:
                    res.append(line.amount)
            else:
                if line.wage_type.definition != 'payment':
                    res.append(line.amount)
        res = self.currency.round(sum(res))
        return res

    def get_net_payment(self, name=None):
        return (self.gross_payments - self.total_deductions)

    def get_total_cost(self, name):
        res = sum([
            line.amount for line in self.lines
            if line.wage_type.definition == 'payment'])
        return res

    def check_start_end(self):
        if self.start <= self.end:
            if self.kind != 'normal':
                return
            if self.start >= self.period.start and \
                    self.end <= self.period.end:
                return
            if self.start >= self.period.start and \
                    self.end is None:
                return
                raise PayrollValidationError(
                    gettext('staff_payroll.msg_wrong_start_end', employee=self.employee.party.name))

    @fields.depends('period', 'start', 'end', 'employee')
    def on_change_period(self):
        self.start = None
        self.end = None
        self.contract = None
        self.description = None
        if self.period:
            self.start = self.period.start
            self.end = self.period.end
            self.contract = self.search_contract_on_period(
                self.employee, self.period
            )
            if not self.description:
                self.description = self.period.description

    @classmethod
    def search_contract_on_period(cls, employee, period):
        Contract = Pool().get('staff.contract')
        contracts = Contract.search([
            ('employee', '=', employee.id), ['AND', ['OR', [
                    ('start_date', '>=', period.start),
                    ('finished_date', '<=', period.end),
                    ('finished_date', '!=', None),
                ], [
                    ('start_date', '<=', period.start),
                    ('finished_date', '>=', period.start),
                    ('finished_date', '!=', None),
                ], [
                    ('start_date', '<=', period.end),
                    ('finished_date', '>=', period.end),
                    ('finished_date', '!=', None),
                ], [
                    ('start_date', '<=', period.start),
                    ('finished_date', '>=', period.end),
                    ('finished_date', '!=', None),
                ], [
                    ('start_date', '<=', period.start),
                    ('finished_date', '=', None),
                ],
                [
                    ('start_date', '>=', period.start),
                    ('start_date', '<=', period.end),
                    ('finished_date', '=', None),
                ],
            ]]
        ])
        print('INGRESA A ESTA FUNCION', contracts)
        if not contracts:
            # last_date_futhermore = employee.get_last_date_futhermore()
            # if last_date_futhermore and last_date_futhermore > period.start:
            #     return employee.contract
            return
        values = dict([(c.finished_date or c.start_date, c)
                       for c in contracts])

        last_contract = values[max(values.keys())]
        finished_date = last_contract.finished_date
        start = period.start
        end = period.end
        if finished_date:
            if (finished_date >= start
                and finished_date <= end) or \
                (finished_date >= end
                 and finished_date >= start):
                return last_contract
        else:
            return last_contract

    def get_days(self, start, end):
        adjust = 1
        quantity_days = (end - start).days + adjust
        if quantity_days < 0:
            quantity_days = 0
        return quantity_days

    def recompute_lines(self):
        for line in self.lines:
            if not line.wage_type.concepts_salary:
                continue
            salary_args = self.get_salary_full(line.wage_type)
            unit_value = line.wage_type.compute_unit_price(salary_args)
            unit_value = self._validate_amount_wage(line.wage_type, unit_value)
            line.write([line], {'unit_value': unit_value})

    def _validate_amount_wage(self, wage, amount):
        return amount


class PayrollLine(ModelSQL, ModelView):
    "Payroll Line"
    __name__ = "staff.payroll.line"
    sequence = fields.Integer('Sequence')
    payroll = fields.Many2One('staff.payroll', 'Payroll',
                              ondelete='CASCADE', select=True, required=True)
    description = fields.Char('Description', required=True)
    wage_type = fields.Many2One('staff.wage_type', 'Wage Type',
                                required=True, depends=['payroll', '_parent_payroll'])
    uom = fields.Many2One('product.uom', 'Unit', depends=['wage_type'],
                          states={'readonly': Bool(Eval('wage_type'))})
    quantity = fields.Numeric('Quantity', digits=(16, 2))
    unit_value = fields.Numeric('Unit Value', digits=(16, 2),
                                depends=['wage_type'])
    amount = fields.Function(fields.Numeric('Amount',
                                            digits=(16, 2), depends=['unit_value', 'quantity'],
                                            states={
                                                'readonly': ~Eval('_parent_payroll'),
                                                }), 'get_amount')
    receipt = fields.Boolean('Print Receipt')
    reconciled = fields.Function(fields.Boolean('Reconciled'),
                                 'get_reconciled')
    party = fields.Many2One('party.party', 'Party', depends=['wage_type'])

    @classmethod
    def __setup__(cls):
        super(PayrollLine, cls).__setup__()
        cls._order.insert(0, ('sequence', 'ASC'))

    @staticmethod
    def default_quantity():
        return Decimal(str(1))

    @fields.depends('wage_type', 'uom', 'quantity', 'party',
                    'description', 'unit_value', 'payroll', 'receipt', 'sequence',
                    '_parent_payroll.employee', '_parent_payroll.contract',
                    '_parent_payroll.end', '_parent_payroll.lines', '_parent_payroll.start',
                    '_parent_payroll.period', '_parent_payroll.kind')
    def on_change_wage_type(self):
        if not self.wage_type:
            return
        self.uom = self.wage_type.uom.id
        self.description = self.wage_type.name
        self.quantity = self.wage_type.default_quantity
        self.receipt = self.wage_type.receipt
        self.sequence = self.wage_type.sequence
        parties = []
        for wage in self.payroll.employee.mandatory_wages:
            if wage.wage_type.id == self.wage_type.id and wage.party:
                parties.append(wage.party.id)
            if parties:
                self.party = parties[0]

        if self.wage_type.unit_price_formula:
            salary_args = self.payroll.get_salary_full(self.wage_type)
            self.unit_value = self.wage_type.compute_unit_price(
                    salary_args)

    def get_amount(self, name):
        return self.on_change_with_amount()

    @fields.depends('quantity', 'unit_value', '_parent_payroll.currency')
    def on_change_with_amount(self):
        quantity = 0
        unit_value = 0
        res = _ZERO
        if self.quantity and self.unit_value:
            quantity = float(self.quantity)
            unit_value = float(self.unit_value)
            res = Decimal(str(round((quantity * unit_value), 2)))
        return res

    def get_reconciled(self, name=None):
        #TODO: Reconciled must be computed from move line, similar way
        # to account invoice
        pass

    def get_move_line(self, account, party_id, amount):
        debit = credit = _ZERO
        if amount[0] == 'debit':
            debit = amount[1]
        else:
            credit = amount[1]

        res = {
            'description': account.name,
            'debit': debit,
            'credit': credit,
            'account': account.id,
            'party': party_id,
        }
        return res

    def update_move_line(self, move_line, values):
        if values['debit']:
            move_line['debit'] += values['debit']

        if values['credit']:
            move_line['credit'] += values['credit']
        return move_line

    def get_expense_amount(self):
        expense = 0
        if self.wage_type.expense_formula:
            salary_args = self.payroll.get_salary_full(self.wage_type)
            expense = self.wage_type.compute_expense(salary_args)
        return expense


class PayrollReport(CompanyReport):
    __name__ = 'staff.payroll'

    @classmethod
    def get_context(cls, records, header, data):
        report_context = super().get_context(records, header, data)
        return report_context


class PayrollGroupStart(ModelView):
    'Payroll Group Start'
    __name__ = 'staff.payroll_group.start'
    period = fields.Many2One('staff.payroll.period', 'Period',
                             required=True, domain=[('state', '=', 'open')])
    description = fields.Char('Description', required=True)
    company = fields.Many2One('company.company', 'Company',
                              required=True)
    wage_types = fields.Many2Many('staff.wage_type', None, None,
                                  'Wage Types')

    @staticmethod
    def default_company():
        return Transaction().context.get('company')

    @fields.depends('period', 'description')
    def on_change_period(self):
        if not self.period:
            return
        if not self.description and self.period.description:
            self.description = self.period.description


class PayrollGroup(Wizard):
    'Payroll Group'
    __name__ = 'staff.payroll_group'
    start = StateView('staff.payroll_group.start',
      'staff_payroll.payroll_group_start_view_form', [
          Button('Cancel', 'end', 'tryton-cancel'),
          Button('Accept', 'open_', 'tryton-ok', default=True),
          ])
    open_ = StateTransition()

    def transition_open_(self):
        pool = Pool()
        Employee = pool.get('company.employee')
        Payroll = pool.get('staff.payroll')

        #Remove employees with payroll this period
        payrolls_period = Payroll.search([
            ('period', '=', self.start.period.id),
            # ('department', '=', self.start.department.id),
        ])

        # contracts_w_payroll = [p.contract.id for p in payrolls_period]
        employee_w_payroll = [p.employee.id for p in payrolls_period]
        dom_employees = self.get_employees_dom(employee_w_payroll)
        payroll_to_create = []
        employees = Employee.search(dom_employees, limit=400)
        get_values = self.get_values
        search_contract_on_period = Payroll.search_contract_on_period
        period = self.start.period
        start = period.start
        end = period.end
        for employee in employees:
            if employee.id in employee_w_payroll:
                continue

            contract = search_contract_on_period(employee, period)
            if not contract:
                continue

            values = get_values(contract, start, end)
            payroll_to_create.append(values)

        wages = [
            (wage_type, None, None) for wage_type in self.start.wage_types
        ]
        PayrollCreate = Payroll.create
        if payroll_to_create:
            payrolls = PayrollCreate(payroll_to_create)
            len_payrolls = len(payrolls)
            cont = 0
            for payroll in payrolls:
                print('contador > ', cont, ' / ', len_payrolls)
                try:
                    cont += 1
                    # REVISAR: Esta linea es basicamente innecesaria y costosa en recursos
                    # payroll.on_change_period()

                    payroll.set_preliquidation({}, None)
                    if wages:
                        payroll._create_payroll_lines(wages, None, {})
                except:
                    print('Fallo al crear nomina : ', payroll.employee.party.name)
        print('-' * 100)
        print('-------------- FINALIZADO -------------')
        print('-' * 100)
        return 'end'

    def get_employees_dom(self, employees_w_payroll):
        dom_employees = [
            ('active', '=', True),
            ('id', 'not in', employees_w_payroll),
        ]
        return dom_employees

    def get_values(self, contract, start_date, end_date):
        employee = contract.employee
        ct_start_date = contract.start_date
        ct_end_date = contract.finished_date
        if ct_start_date and ct_start_date >= start_date and \
                ct_start_date <= end_date:
            start_date = ct_start_date
        if ct_end_date and ct_end_date >= start_date and \
                ct_end_date <= end_date:
            end_date = ct_end_date
        values = {
            'employee': employee.id,
            'period': self.start.period.id,
            'start': start_date,
            'end': end_date,
            'description': self.start.description,
            'date_effective': end_date,
            'contract': contract.id,
            'department': employee.department.id if employee.department else None,
        }
        return values


class PayrollPreliquidation(Wizard):
    'Payroll Preliquidation'
    __name__ = 'staff.payroll.preliquidation'
    start_state = 'create_preliquidation'
    create_preliquidation = StateTransition()

    def transition_create_preliquidation(self):
        Payroll = Pool().get('staff.payroll')
        ids = Transaction().context['active_ids']
        for payroll in Payroll.browse(ids):
            if payroll.state != 'draft':
                return
            if not payroll.lines:
                payroll.set_preliquidation({}, None)
            else:
                payroll.update_preliquidation({})
        return 'end'


class PayrollRecompute(Wizard):
    'Payroll Recompute'
    __name__ = 'staff.payroll.recompute'
    start_state = 'do_recompute'
    do_recompute = StateTransition()

    def transition_do_recompute(self):
        Payroll = Pool().get('staff.payroll')
        ids = Transaction().context['active_ids']
        for payroll in Payroll.browse(ids):
            if payroll.state != 'draft' or not payroll.lines:
                continue
            payroll.recompute_lines()
        return 'end'


class Move(metaclass=PoolMeta):
    __name__ = 'account.move'

    @classmethod
    def _get_origin(cls):
        return super(Move, cls)._get_origin() + ['staff.payroll']