# -*- coding: utf-8 -*-
from openerp import models, fields, tools, api, _
import openerp.addons.decimal_precision as dp
from  openerp.exceptions import Warning, except_orm, AccessError
from openerp.tools import DEFAULT_SERVER_DATETIME_FORMAT, DEFAULT_SERVER_DATE_FORMAT
from pytz import timezone
from datetime import datetime,timedelta
import logging
_logger = logging.getLogger(__name__)

class ConstructionMove(models.Model):
    _name = 'construction.move'

    name = fields.Char('name')
    date = fields.Date()
    state = fields.Selection([('draft','Borrador'),('posted', 'Fijado')], default='draft')
    ref = fields.Char('Ref')
    comment = fields.Text('Comment', help='information')
    partner_id = fields.Many2one('res.partner', string='partner')
    order_id = fields.Many2one('construction.order', string='order')
    work_id = fields.Many2one('construction.work', string='obra')
    type = fields.Selection([('order', 'Orden'),('contractor', 'Contratista')])
    currency_id = fields.Many2one('res.currency', string="Currency", help="Moneda de la operación", required=True)

    ''' Line '''
    move_lines_ids = fields.One2many('construction.move.line', 'move_id', string='lines')
    '''Valor total de la Orden.'''
    amount_total = fields.Float('Amount Total', digits_compute=dp.get_precision('Account'), default=0.0)
    '''valor total pagado.'''
    amount_paid = fields.Float('Amount paid', digits_compute=dp.get_precision('Account'), default=0.0)
    '''  Saldo de la orden.'''
    residual = fields.Float('Amount Residual', digits_compute=dp.get_precision('Account'), default=0.0)
    '''Valor total de los gasto  registrado de la orden.'''
    amount_expenses = fields.Float('Amount Expenses', digits_compute=dp.get_precision('Account'), default=0.0)
    '''Valor disponible para generar gastos  de la orden.'''
    available_expenses = fields.Float('Available Expenses', digits_compute=dp.get_precision('Account'), default=0.0)
    ''' invoice '''
    invoice_id = fields.Many2one('account.invoice', string='Invoice Reference', ondelete='restrict', index=True)

    ''' timezone '''
    def get_timezone(self):
        return timezone(self._context.get('tz') or self.env.user.tz)

    ''' Datetime '''
    def get_datetime(self):
        return datetime.now(self.get_timezone()).strftime(DEFAULT_SERVER_DATETIME_FORMAT)
    ''' Date '''
    def get_date(self):
        return datetime.now(self.get_timezone()).strftime(DEFAULT_SERVER_DATE_FORMAT)

    ''' CREATE INVOICE '''
    def createInvoiceMove(self):
        _logger.info('Create invoice')
        decimal_precision = self.env['decimal.precision'].precision_get('Account')
        dateServer = self.get_date()

        constructionConfig = self.env['construction.config'].search([('active', '=', True)])
        if (not constructionConfig):
            raise except_orm(_('Warning'),_('No fue posible localizar la configuración de factura de orden de servicios'))

        invoice_line = []
        invoice = []
        invoice_line.append([0,False, {
            'name': 'Servicios',
            'account_id': constructionConfig.line_account_id.id,
            'quantity': 1,
            'price_unit': round((self.amount_total),decimal_precision),
            'price_subtotal': round((self.amount_total),decimal_precision),
            'partner_id': self.partner_id.id,
            'invoice_line_tax_id': [(6, 0,[x.id for x in constructionConfig.line_tax_id])],
        }])

        invoice = {
            'partner_id': self.partner_id.id,
            'currency_id': self.currency_id.id,
            'date_invoice': dateServer,
            'journal_id': constructionConfig.invoice_journal_id.id,
            'account_id': constructionConfig.invoice_account_id.id,
            'invoice_line': invoice_line,
            'origin': '%s' % (self.order_id.name),
            'type': 'out_invoice',
            'construction_order_id': self.order_id.id,
        }

        # #  Create / open /invoice
        accountInvoice = self.env['account.invoice'].create(invoice)
        accountInvoice.signal_workflow('invoice_open')

        self.write({'invoice_id': accountInvoice.id})

        return True
        # import web_pdb; web_pdb.set_trace()

    ''' recalculate_paid_invoice'''
    def recalculate_paid_invoice(self, amountTotal, amountPaidTotal, residual):
        # Paid
        # amountPaid = self.amount_paid or 0
        amountPaid = amountPaidTotal
        # Residual
        residual = residual
        # Available expenses
        available = amountPaid - self.amount_expenses

        self.write({
            'amount_paid': amountPaid,
            'residual': residual,
            'available_expenses': available,
        })

        return True


''' RES PARTNER '''
class ConstructionOrderMove(models.Model):
    _inherit =  'construction.order'

    construction_move_id = fields.One2many('construction.move', 'order_id', string='Move')

''' RES PARTNER '''
class ResPartnerMove(models.Model):
    _inherit =  'res.partner'

    construction_move_id = fields.One2many('construction.move', 'partner_id', string='Move')

''' Account Invoice '''
class AccountInvoiceMove(models.Model):
    _inherit =  'account.invoice'

    construction_move_id = fields.One2many('construction.move', 'invoice_id', string='Invoice')

''' Line '''
class ConstructionMoveLine(models.Model):
    _name = 'construction.move.line'

    move_id = fields.Many2one('construction.move', string='move', ondelete='cascade', index=True)

    code = fields.Char('Code', size=32)
    task_name = fields.Char('name')
    uom_id = fields.Many2one('construction.uom', string='Unidad de medida')
    task_id = fields.Many2one('construction.task', string='Tarea')
    task_line_id = fields.Many2one('construction.task.line', string='Actividad')
    type = fields.Selection([('task', 'Tarea'),('activity', 'Actividad')])

    ''' Importe Pagado, Total , Residual '''
    amount_total = fields.Float('Amount Total', digits_compute=dp.get_precision('Account'), default=0.0)
    amount_expenses = fields.Float('Amount Expenses', digits_compute=dp.get_precision('Account'), default=0.0)
    residual = fields.Float('Amount Residual', digits_compute=dp.get_precision('Account'), default=0.0)

    expenses_ids = fields.One2many('construction.expenses.move.line', 'move_line_id', string='Expenses')

    def recalculate_paid_expense(self):
        move = self.env['construction.move'].browse(self.move_id.id)
        if (not move):
            return False

        for line in move.move_lines_ids:
            if (line.type == 'task'):
                task = line.task_id.id
                # amountTotal = line.amount_total
                amountExpense = 0
            for lineActivity in move.move_lines_ids:
                if (lineActivity.type == 'activity'):
                    amountExpense +=  lineActivity.amount_expenses

            if (line.type == 'task'):
                line.write({
                    'amount_expenses' : amountExpense,
                    'residual' : line.amount_total - amountExpense
                })

            # import web_pdb; web_pdb.set_trace()


        # task_id
        # task_line_id
            # if (line.type =='activity'):
                # ammount +=line.amount_total

            # amount_total
            # amount_expenses
            # residual