# -*- coding: utf-8 -*-
from openerp import models, fields, tools, api
import openerp.addons.decimal_precision as dp
from datetime import datetime
from openerp.exceptions import ValidationError

class AccountInterest(models.Model):
    _name = 'account.interest'

    name = fields.Char()
    date = fields.Date('Date', help="Fecha de operación")
    state = fields.Selection([('cancel', 'Cancelado'),('open', 'Abierto'),('paid', 'Pagado')],'Estado del pago', default="open", help="Estado")
    comment = fields.Text('Comment', help="Información adicional")
    ## Cliente
    customer_id = fields.Many2one('res.partner', string="customer")
    ## factura
    invoice_id = fields.Many2one('account.invoice', string='Invoice Reference', ondelete='restrict', index=True)
    reference = fields.Char(string='Invoice Reference', help="Invoice Reference")
    ## Currency
    currency_id = fields.Many2one('res.currency', string="Currency", help="Moneda de la operación")
    ## Line
    lines_ids = fields.One2many('account.interest.line', 'interest_id', string='interest line')

    '''
        Create
    '''
    @api.model
    def create(self, vals):
        interest = super(AccountInterest, self).create(vals)
        interest.write({'name':("INTEREST/%06d" % (interest.id))})
        return interest

    '''
        Unlink
    '''
    @api.multi
    def unlink(self):
        interestLine = self.env['account.interest.line'].search([('interest_id.id', '=', self.id)])

        invoice_ids = map(lambda x: x.invoice.id, interestLine)
        moves_ids = map(lambda x: x.move_line_id.id, interestLine)

        invoiceNumber = ""
        invoice = self.env['account.invoice'].search([('id', 'in', invoice_ids)])
        if (invoice):
            for invoiceN in invoice:
                invoiceNumber += "%s, " % (invoiceN.number)

            raise ValidationError('Existe relacion de la lineas de interes con las facturas (%s)' % (invoiceNumber))
            return False

        moveLine = self.env['account.move.line'].search([('id', 'in', moves_ids)])
        for lineMove in moveLine:
            lineMove.write({'date_interest': lineMove.date_maturity})

        return super(AccountInterest, self).unlink()

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

    interest_ids = fields.One2many('account.interest', 'invoice_id', string=' Account Interest')
    is_interest = fields.Boolean('Factura de interés', default=False, help="Indica si esta factura fue generado por un interés.")
    interest_line_ids = fields.One2many('account.interest.line', 'invoice', string=' Account Interest Line')


    '''  Unlink Invoice '''
    @api.multi
    def unlink(self):
        interestLine = self.env['account.interest.line'].search([('invoice.id', '=', self.id)])
        for line in interestLine:
            moveLine = self.env['account.move.line'].browse(line.move_line_id.id)

            if (moveLine):
                moveLine.write({'date_interest': moveLine.date_maturity})

            line.write({
                'state': 'open',
                'reference': ''
            })

        return super(accountInvoiceInterest, self).unlink()

    @api.multi
    def write(self, vals):
        invoice = super(accountInvoiceInterest, self).write(vals)

        linesIds = map(lambda x: x.id, self.interest_line_ids)
        if (linesIds):
            interestLine = self.env['account.interest.line'].search([('id', 'in', linesIds)])

            if (interestLine):
                state = []
                if (self.state == 'open'):
                    state = {'state': 'invoiced'}

                if (self.state == 'cancel'):
                    state = {'state': 'invoice_cancel'}

                if (self.state == 'draft'):
                    state = {'state': 'invoice_draft'}

                if (self.state == 'paid'):
                    state = {'state': 'paid'}

                if (state):
                    for line in interestLine:
                        line.write(state)

        return True


''' Partner '''
class ResPartnerInterest(models.Model):
    _inherit = 'res.partner'

    interest_ids = fields.One2many('account.interest', 'customer_id', string=' Account Interest')

class AccountInterestLine(models.Model):
    _name = 'account.interest.line'

    ## Interest
    interest_id = fields.Many2one('account.interest', string='Account Interest', ondelete='cascade', index=True, required=True)
    move_line_id = fields.Many2one('account.move.line', string="Registros del diario", help="Registros del diario")
    amount = fields.Float('amount', digits_compute=dp.get_precision('Account'), required=True, help="Monto del pago")
    amount_residual = fields.Float('amount', digits_compute=dp.get_precision('Account'), required=True, help="Monto del pago")
    amount_interest = fields.Float('amount', digits_compute=dp.get_precision('Account'), required=True, help="Monto del pago")
    date_maturity = fields.Date()
    expired_days = fields.Integer('Expired Days ')
    invoice = fields.Many2one('account.invoice', string='Invoice Reference', index=True)
    reference = fields.Char(string='Invoice Reference', help="Invoice Reference")
    state = fields.Selection([  ('discount','Descuento total'),
                                ('open','Abierto'),
                                ('invoiced','Facturado'),
                                ('invoice_cancel', 'Factura Cancelada'),
                                ('invoice_draft', 'Factura Borrador'),
                                ('paid', 'Pagado')],'Estado del pago de la linea ', default="open")
    amount_dicount = fields.Float('amount disconut', digits_compute=dp.get_precision('Account'), help="Monto del descuento")


'''
    Move Line
'''
class accountMoveLineInterest(models.Model):
    _inherit = 'account.move.line'

    interest_line_ids = fields.One2many('account.interest.line', 'move_line_id', string=' Account Interest Line')
    date_interest = fields.Date("Date interés", help="Fecha de la facturación de os interés")