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


class SfProductCategory(models.Model):
    _inherit = 'product.category'

    negative_inventory_allowed = fields.Boolean('可负库存', default=True)


class SfProductTemplate(models.Model):
    _inherit = 'product.product'

    def verify_product_repertory(self, location_id):
        """
             验证产品  负库存
        """
        if not location_id:
            raise ValidationError('当前位置为空！！')
        elif len(location_id) != 1:
            raise ValidationError(f'存在多个当前位置{[item.name for item in location_id]}')
        elif location_id.usage == 'supplier':
            return True
        for pp in self:
            if not pp.categ_id.negative_inventory_allowed:
                sq = pp.stock_quant_ids.filtered(lambda sq: sq.quantity < 0 and sq.location_id == location_id)
                if sq:
                    raise ValidationError(
                        f'产品{pp.name}的产品类型设置为不可负库存，当前操作会导致产品{pp.name}在库存{location_id.name}上的库存数量为负！！！')