from collections import defaultdict
from odoo import fields, models, _
from odoo.exceptions import UserError


class ProductLabelLayout(models.TransientModel):
_inherit = 'product.label.layout'

print_format = fields.Selection(selection_add=[
    ('price_card', 'Price Card'), ], ondelete={'price_card': 'set default'})

def _prepare_report_data(self):
    xml_id, data = super()._prepare_report_data()

    if 'price_card' in self.print_format:
        xml_id = module_name.report_product_label_product_price_tag'

        active_model = ''
        if self.product_tmpl_ids:
            products = self.product_tmpl_ids.ids
            active_model = 'product.template'
        elif self.product_ids:
            products = self.product_ids.ids
            active_model = 'product.product'
        price = format(self.product_tmpl_ids.list_price, ".2f")
        data = {
            'active_model': active_model,
            'product_tmpl_name': self.product_tmpl_ids.name,
            'product_tmpl_price': price,
            'product_tmpl': self.product_tmpl_ids,
            'product_name': self.product_ids.name,
            'product_id': self.product_ids,
        }
    return xml_id, data

def process(self):
    action = super(ProductLabelLayout, self).process()
    self.ensure_one()
    xml_id, data = self._prepare_report_data()
    if not xml_id:
        raise UserError(_('Unable to find report template for %s format', self.print_format))
    report_action = self.env.ref(xml_id).report_action(None, data=data)
    report_action.update({'close_on_report_download': True})
    return action