# Copyright  2018 Forest and Biomass Romania
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).

from odoo import api, fields, models, _
from odoo.exceptions import ValidationError


class VATReportWizard(models.TransientModel):
    _name = "vat.report.wizard"
    _description = "VAT Report Wizard"

    company_id = fields.Many2one(
        comodel_name='res.company',
        default=lambda self: self.env.user.company_id,
        required=False,
        string='Company'
    )
    date_range_id = fields.Many2one(
        comodel_name='date.range',
        string='Date range'
    )
    date_from = fields.Date('Start Date', required=True)
    date_to = fields.Date('End Date', required=True)
    based_on = fields.Selection([('taxtags', 'Tax Tags'),
                                 ('taxgroups', 'Tax Groups')],
                                string='Based On',
                                required=True,
                                default='taxtags')
    tax_detail = fields.Boolean('Detail Taxes')

    @api.onchange('company_id')
    def onchange_company_id(self):
        if self.company_id and self.date_range_id.company_id and \
                self.date_range_id.company_id != self.company_id:
            self.date_range_id = False
        res = {'domain': {'date_range_id': [],
                          }
               }
        if not self.company_id:
            return res
        else:
            res['domain']['date_range_id'] += [
                '|', ('company_id', '=', self.company_id.id),
                ('company_id', '=', False)]
        return res

    @api.onchange('date_range_id')
    def onchange_date_range_id(self):
        """Handle date range change."""
        self.date_from = self.date_range_id.date_start
        self.date_to = self.date_range_id.date_end

    @api.multi
    @api.constrains('company_id', 'date_range_id')
    def _check_company_id_date_range_id(self):
        for rec in self.sudo():
            if rec.company_id and rec.date_range_id.company_id and\
                    rec.company_id != rec.date_range_id.company_id:
                raise ValidationError(
                    _('The Company in the Vat Report Wizard and in '
                      'Date Range must be the same.'))

    @api.multi
    def _print_report(self, report_type):
        self.ensure_one()
        data = self._prepare_vat_report()
        if report_type == 'xlsx':
            report_name = 'a_f_r.report_vat_report_xlsx'
        else:
            report_name = 'account_financial_report.vat_report'
        return self.env['ir.actions.report'].search(
            [('report_name', '=', report_name),
             ('report_type', '=', report_type)], limit=1).report_action(
            self, data=data)

    @api.multi
    def button_export_html(self):
        self.ensure_one()
        report_type = 'qweb-html'
        return self._export(report_type)

    @api.multi
    def button_export_pdf(self):
        self.ensure_one()
        report_type = 'qweb-pdf'
        return self._export(report_type)

    @api.multi
    def button_export_xlsx(self):
        self.ensure_one()
        report_type = 'xlsx'
        return self._export(report_type)

    def _prepare_vat_report(self):
        self.ensure_one()
        return {
            'wizard_id': self.id,
            'company_id': self.company_id.id,
            'date_from': self.date_from,
            'date_to': self.date_to,
            'based_on': self.based_on,
            'tax_detail': self.tax_detail,
        }

    def _export(self, report_type):
        """Default export is PDF."""
        return self._print_report(report_type)