# -*- encoding: utf-8 -*-
##############################################################################
#
#    OpenERP, Open Source Management Solution
#    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Affero General Public License as
#    published by the Free Software Foundation, either version 3 of the
#    License, or (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU Affero General Public License for more details.
#
#    You should have received a copy of the GNU Affero General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################


from openerp import models, fields, api
from openerp.exceptions import ValidationError

class OrdenCobro(models.Model):
    _name = 'orden.cobro'
    _description = 'Orden de cobro'

    def _get_user(self):
        return self.env.uid

    def _get_number(self):
        return self.env['ir.sequence'].next_by_code('orden.cobro') or '*'

    name = fields.Char(string=u'Referencia', readonly=True, default=_get_number)
    partner_id = fields.Many2one('res.partner', string='Cliente', required=True)
    date = fields.Date(string='Fecha elab.', default=fields.Date.context_today)
    user_id = fields.Many2one('res.users', string='Preparado por:', default=_get_user)
    company_id = fields.Many2one('res.company', string='Compañía', required=True, default=lambda self: self.env.user.company_id)
    # account_invoice_id = fields.Many2one('account.invoice', string='Factura')
    # invoice_line_ids = fields.One2many('orden.cobro.line', 'orden_cobro_id', string='Facturas')
    invoice_line_ids = fields.One2many(
        comodel_name='orden.cobro.line',
        inverse_name='orden_cobro_id',
        string='Facturas'
    )
    responsable = fields.Char(string='Aprobado Gerencia General:')
    celular_partner = fields.Char(related='partner_id.mobile', string='Móvil', store=True)
    telefono_partner = fields.Char(related='partner_id.phone', string='Teléfono', store=True)
    ruc_partner = fields.Char(related='partner_id.ruc', string='RUC:', readonly=True)
    forma_cobro = fields.Char(string='Forma de Cobro')
    presupuesto_nro = fields.Char(string='Presupuesto N°')
    cheque_nro = fields.Char(string='Cheque N°')
    transf_nro = fields.Char(string='Transferencia N°')
    cheque_banco = fields.Char(string='Banco Cheque')
    transf_banco = fields.Char(string='Cuenta Bancaria')
    concepto = fields.Char(string='Concepto')
    currency_id = fields.Many2one('res.currency', related='company_id.currency_id', string='Moneda', store=True, readonly=True)
    is_efec = fields.Boolean(string="Efectivo", default=False)
    is_cheq = fields.Boolean(string="Cheque", default=False)
    is_transf = fields.Boolean(string="Transferencia", default=False)
    comprobante_monto = fields.Float(string='Importe Comprobante')
    obra = fields.Char(string='Obra')
    solicitado_por = fields.Char(string='Recibido por')
    obs = fields.Char(string='Obs.')
    total = fields.Float(string='Total', compute='_compute_total', store=True)

    @api.depends('invoice_line_ids.monto_cobrado')
    def _compute_total(self):
        for rec in self:
            rec.total = sum(line.monto_cobrado for line in rec.invoice_line_ids if line.invoice_id)

    # @api.constrains('invoice_line_ids')
    # def _check_invoice_lines(self):
    #     for rec in self:
    #         for line in rec.invoice_line_ids:
    #             if not line.invoice_id:
    #                 raise ValidationError("Todas las líneas deben tener una factura seleccionada.")

    @api.multi
    def action_buscar_facturas(self):
        self.ensure_one()
        return {
                'type': 'ir.actions.act_window',
                'res_model': 'wizard.select.invoice',
                'view_type': 'form',
                'view_mode': 'form',
                'target': 'new',
                'context': {
                    'default_orden_cobro_id': self.id,
                }
        }

class OrdenCobroLine(models.Model):
    _name = 'orden.cobro.line'
    _description = 'Detalle de Facturas en Orden de Cobro'

    orden_cobro_id = fields.Many2one(comodel_name='orden.cobro', string='Orden de cobro')
    invoice_id = fields.Many2one('account.invoice', string='Factura',
        domain="[('partner_id', '=', parent.partner_id), ('state', '=', 'open'), ('type', '=', 'out_invoice')]")
    invoice_number = fields.Char(related='invoice_id.number', string='Nro Factura', readonly=True)
    invoice_date = fields.Date(related='invoice_id.date_invoice', string='Fecha', readonly=True)
    invoice_total = fields.Float(related='invoice_id.amount_total', string='Total Factura', readonly=True)
    monto_cobrado = fields.Float(string='Monto a cobrar', required=True)
    invoice_state = fields.Selection(related='invoice_id.state', string='Estado',readonly=True)


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

    ordencobro_id = fields.One2many('orden.cobro.line', 'invoice_id', string='Órdenes de cobro relacionadas')
    # ordencobro_id = fields.Many2one(comodel_name='orden.cobro.line', 'invoice_id', string='Órdenes de cobro relacionadas')