# -*- coding: utf-8 -*-
# © 2017 Techspawn Solutions
# © 2015 Eezee-It, MONK Software, Vauxoo
# © 2013 Camptocamp
# © 2009-2013 Akretion,
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).

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


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

    claim_id = fields.Many2one('crm.claim', string='Claim')

    def _refund_cleanup_lines(self, lines):
        """ Override when from claim to update the quantity and link to the
        claim line.
        """

        # check if is an invoice_line and we are from a claim
        if not (self.env.context.get('claim_line_ids') and lines and
                lines[0]._name == 'account.invoice.line'):
            return super(AccountInvoice, self)._refund_cleanup_lines(lines)

        # start by browsing all the lines so that Odoo will correctly prefetch
        line_ids = [l[1] for l in self.env.context['claim_line_ids']]
        claim_lines = self.env['claim.line'].browse(line_ids)

        new_lines = []
        for claim_line in claim_lines:
            if not claim_line.refund_line_id:
                # For each lines replace quantity and add claim_line_id
                inv_line = claim_line.invoice_line_id
                clean_line = {}
                for field_name, field in inv_line._fields.iteritems():
                    if isinstance(field, fields.Many2one):
                        clean_line[field_name] = inv_line[field_name].id
                    elif not isinstance(field, (fields.Many2many,
                                                fields.One2many)):
                        clean_line[field_name] = inv_line[field_name]
                    elif field_name == 'invoice_line_tax_id':
                        tax_ids = inv_line[field_name].ids
                        clean_line[field_name] = [(6, 0, tax_ids)]
                clean_line['quantity'] = claim_line.product_returned_quantity
                clean_line['claim_line_id'] = [claim_line.id]

                new_lines.append(clean_line)
        if not new_lines:
            # TODO use custom states to show button of this wizard or
            # not instead of raise an error

            raise exceptions.UserError(
                _('A refund has already been created for this claim !')
            )
        return [(0, 0, l) for l in new_lines]

    @api.model
    def _prepare_refund(self, *args, **kwargs):
        result = super(AccountInvoice, self)._prepare_refund(*args, **kwargs)

        if self.env.context.get('claim_id'):
            result['claim_id'] = self.env.context['claim_id']

        return result