# Part of Odoo. See LICENSE file for full copyright and licensing details.

from odoo import api, models
from odoo.exceptions import UserError


class EmsignerSignSendRequest(models.TransientModel):
    _inherit = 'sign.send.request'
    _description = 'Sign send request'

    def sign_directly(self):
        if self.env.context.get('sign_all') and len(self.signer_ids) > 1:
            # If the request has multiple signers and one of them has an emsigner role(except last signer), we cannot sign directly.
            has_emsigner_role = any(signer.role_id.auth_method == 'emsigner' for signer in self.signer_ids[:-1])
            if has_emsigner_role:
                raise UserError(self.env._("Emsigner role cannot be signed first. Please keep emsigner as last signer."))
        return super().sign_directly()

    @api.depends("only_autofill_readonly", "signers_count", "is_user_signer")
    def _compute_display_download_button(self):
        # Hide download button as emsigner does not allow direct download without signing
        for wiz in self:
            if wiz.signer_ids[:1].role_id.auth_method == "emsigner":
                wiz.display_download_button = False
            else:
                super()._compute_display_download_button()