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

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


class ProductDocument(models.Model):
    _name = 'product.document'
    _description = "Product Document"
    _inherits = {
        'ir.attachment': 'ir_attachment_id',
    }
    _order = 'sequence, name'

    ir_attachment_id = fields.Many2one(
        'ir.attachment',
        string="Related attachment",
        required=True,
        ondelete='cascade')

    active = fields.Boolean(default=True)
    sequence = fields.Integer(default=10)

    @api.onchange('url')
    def _onchange_url(self):
        for attachment in self:
            if attachment.type == 'url' and attachment.url and\
                not attachment.url.startswith(('https://', 'http://', 'ftp://')):
                raise ValidationError(_(
                    "Please enter a valid URL.\nExample: https://www.odoo.com\n\nInvalid URL: %s",
                    attachment.url
                ))

    #=== CRUD METHODS ===#

    @api.model_create_multi
    def create(self, vals_list):
        return super(
            ProductDocument,
            self.with_context(disable_product_documents_creation=True),
        ).create(vals_list)

    def copy_data(self, default=None):
        vals_list = super().copy_data(default=default)
        ir_default = default
        if ir_default:
            ir_fields = list(self.env['ir.attachment']._fields)
            ir_default = {field : default[field] for field in default if field in ir_fields}
        for document, vals in zip(self, vals_list):
            vals['ir_attachment_id'] = document.ir_attachment_id.with_context(
                no_document=True,
                disable_product_documents_creation=True,
            ).copy(ir_default).id
        return vals_list

    def unlink(self):
        attachments = self.ir_attachment_id
        res = super().unlink()
        return res and attachments.unlink()