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


class PurchaseOrderLine(models.Model):
    _inherit = 'purchase.order.line'

    # Override method from addons/purchase/models/purchase.py
    @api.onchange('product_qty', 'product_uom')
    def _onchange_quantity(self):
        res = super(PurchaseOrderLine, self)._onchange_quantity()
        # Custom script
        purchase_pricelist = self.env['purchase.pricelist'].search([
            ('product_id', '=', self.product_id.id),
            ('vendor_id', '=', self.partner_id.id)
        ], limit=1)
        price_unit = purchase_pricelist.product_price

        if not price_unit:
            product_supplierinfo = self.env['product.supplierinfo'].search([
                ('product_tmpl_id', '=', self.product_id.product_tmpl_id.id),
                ('name', '=', self.partner_id.id)
            ], limit=1)
            price_unit = product_supplierinfo.price

        self.price_unit = price_unit
        return res

    # def compute_item_margin(self):
    #     for line in self:
    #         if not line.product_id or line.price_unit <= 0 or line.product_uom_qty <= 0 or line.product_id.type == 'service' or not line.order_id.sale_order_id.id:
    #             line.item_margin = 0
    #             line.item_percent_margin = 0
    #             continue
    #         sale_order_line = self.env['sale.order.line'].search(
    #             [('product_id', '=', line.product_id.id),
    #              ('order_id', '=', line.order_id.sale_order_id.id)], limit=1, order='price_reduce_taxexcl')
    #
    #         est_purchase_price = sale_order_line.purchase_price
    #         real_purchase_price = line.price_unit
    #         real_tax = 0
    #         real_tax_amount = 0
    #         count_real_tax = 0
    #         for tax in line.taxes_id:
    #             count_real_tax += 1
    #             real_tax = tax
    #             real_tax_amount += tax.amount
    #         if sale_order_line.purchase_tax_id.amount != real_tax_amount or count_real_tax > 1:
    #             raise UserError("Beda tax amount dengan Sales")
    #
    #         # untaxed sales price
    #         sales_price = sale_order_line.price_reduce_taxexcl * sale_order_line.product_uom_qty
    #         # must add expedition price in sales_price, expedition payed by customer?
    #         # sales_price -= round((line.order_id.sale_order_id.delivery_amount / line.order_id.sale_order_id.count_line_product), 2)
    #         # untaxed purchase price
    #         purchase_price = line.price_subtotal
    #         # must add expedition price in purchase_price as expenses
    #         purchase_price += round((line.order_id.delivery_amount / line.order_id.count_line_product), 2)
    #         margin_per_item = sales_price - purchase_price
    #         line.item_margin = margin_per_item
    #         if sales_price > 0:
    #             line.item_percent_margin = round((margin_per_item / sales_price), 2) * 100