# Copyright 2018-Today datenpol gmbh (<http://www.datenpol.at>)
# License OPL-1 or later (https://www.odoo.com/documentation/user/11.0/legal/licenses/licenses.html#licenses).

from odoo import tools, api, fields, models, _
from odoo.exceptions import ValidationError, UserError, Warning

class WizardSignDelivery(models.TransientModel):
    _name = 'wizard.sign_delivery'
    _description = 'Sign Delivery'

    picking_signature = fields.Binary()

    @api.multi
    def button_sign_delivery(self):
        for wizard in self:
            error_at_dlv = False
            info = 'Bitte prüfen Sie den Lieferscheinstatus:'
            active_ids = self.env.context.get('active_ids', [])
            delivery = self.env['stock.picking'].browse(active_ids)
            if delivery.exists():
                for dlv in delivery:
                    if dlv.state != 'cancel':
                        info += "\n %s -- OK" % dlv.name
                    else:
                        info += "\n %s state='%s'" % (dlv.name,dlv.state)
                        error_at_dlv = True
                if error_at_dlv:
                    raise ValidationError(_(info))

                for dlv in delivery:
                    dlv.picking_signature = wizard['picking_signature']

                action = self.env.ref('stock.stock_picking_action_picking_type').read()[0]
                action['domain'] = [('id', 'in', active_ids)]
                action['context'] = [{}]
            return action