# -*- coding: utf-8 -*-
##############################################################################
#
#    Copyright (C) 2011 - 2014 Agile Business Group sagl
#    (<http://www.agilebg.com>)
#    Copyright (C) 2011 Domsense srl (<http://www.domsense.com>)
#
#    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.osv import fields, orm, api
from openerp.exceptions import ValidationError


class AccountMoveTemplate(orm.Model):
    _name = 'account.move.template'
    _inherit = 'account.document.template'

    @api.model
    def _company_get(self):
        return self.env['res.company']._company_default_get(
            object='account.move.template'
        )

    company_id = fields.Many2one(
        comodel_name='res.company',
        string='Company',
        required=True,
        change_default=True,
        default=_company_get,
    )
    template_line_ids = fields.One2many(
        comodel_name='account.move.template.line',
        inverse_name='template_id',
        string='Template Lines'
    )
    cross_journals = fields.Boolean(string='Cross-Journals')
    transitory_acc_id = fields.Many2one(
        comodel_name='account.account',
        string='Transitory account',
        required=False
    )

    @api.constrains('journal_id')
    def _check_different_journal(self):
        # Check that the journal on these lines are different/same in the case
        # of cross journals/single journal
        journal_ids = []
        all_journal_ids = []
        error_message = (
            u'If the template is "cross-journals", the Journals must be '
            u'different, if the template does not "cross-journals" the '
            u'Journals must be the same!',
        )
        for move_template in self:
            if move_template.template_line_ids:
                for template_line in move_template.template_line_ids:
                    all_journal_ids.append(template_line.journal_id.id)
                    if template_line.journal_id.id not in journal_ids:
                        journal_ids.append(template_line.journal_id.id)
                if move_template.cross_journals:
                    if len(all_journal_ids) != len(journal_ids):
                        raise ValidationError(error_message)
                elif len(journal_ids) != 1:
                    raise ValidationError(error_message)


class AccountMoveTemplateLine(orm.Model):
    _name = 'account.move.template.line'
    _inherit = 'account.document.template.line'

    journal_id = fields.Many2one(
        comodel_name='account.journal',
        string='Journal',
        required=True
    )
    account_id = fields.Many2one(
        comodel_name='account.account',
        string='Account',
        required=True,
        ondelete="cascade"
    ),
    move_line_type = fields.Selection(
        [('cr', 'Credit'), ('dr', 'Debit')],
        string='Move Line Type',
        required=True
    )
    analytic_account_id = fields.Many2one(
        comodel_name='account.analytic.account',
        string='Analytic Account',
        ondelete="cascade"
    )
    template_id = fields.Many2one(
        comodel_name='account.move.template',
        string='Template'
    )
    account_tax_id = fields.Many2one(
        comodel_name='account.tax',
        string='Tax'
    )

    _sql_constraints = [
        ('sequence_template_uniq', 'unique (template_id,sequence)',
         'The sequence of the line must be unique per template !')
    ]