from decimal import DefaultContext
from odoo import models, fields, api
from odoo import tools
from odoo.exceptions import UserError

class ProductSupplierinfo(models.Model):
    _inherit = "product.supplierinfo"

    @api.constrains('name', 'product_tmpl_id')
    def _check_unique_supplierinfo(self):
        for record in self:
            if not record.name or not record.product_tmpl_id:
                continue

            domain = [
                ('name', '=', record.name.id),
                ('product_tmpl_id', '=', record.product_tmpl_id.id),
                ('id', '!=', record.id),
            ]

            if self.search_count(domain):
                raise UserError(
                    "A Vendor Pricelist with the same supplier and product already exists."
                )


    # @api.model
    # def create(self, vals):
    #     record = super(ProductSupplierinfo, self).create(vals)
    #     self._check_unique_supplierinfo_on_vals(record)
    #     return record

    # def write(self, vals):
    #     res = super(ProductSupplierinfo, self).write(vals)
    #     for record in self:
    #         self._check_unique_supplierinfo_on_vals(record)
    #     return res