# Copyright (C) 2015-2019 Akretion (http://www.akretion.com)
# @author Alexis de Lattre <alexis.delattre@akretion.com>
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).


from odoo import api, fields, models

import odoo.addons.decimal_precision as dp


class SaleOrderLine(models.Model):
    _inherit = "sale.order.line"

    # Also defined in bi_sale_company_currency
    company_currency_id = fields.Many2one(
        related="order_id.company_id.currency_id", store=True, string="Company Currency"
    )
    standard_price_company_currency = fields.Float(
        string="Cost Price in Company Currency",
        readonly=True,
        digits=dp.get_precision("Product Price"),
        help="Cost price in company currency in the unit of measure "
        "of the sale order line",
    )
    standard_price_sale_currency = fields.Float(
        string="Cost Price in Sale Currency",
        readonly=True,
        compute="_compute_margin",
        store=True,
        digits=dp.get_precision("Product Price"),
        help="Cost price in sale currency in the unit of measure "
        "of the sale order line",
    )
    margin_sale_currency = fields.Monetary(
        string="Margin in Sale Currency",
        readonly=True,
        store=True,
        compute="_compute_margin",
        currency_field="currency_id",
    )
    margin_company_currency = fields.Monetary(
        string="Margin in Company Currency",
        readonly=True,
        store=True,
        compute="_compute_margin",
        currency_field="company_currency_id",
    )
    margin_rate = fields.Float(
        string="Margin Rate",
        readonly=True,
        store=True,
        compute="_compute_margin",
        digits=(16, 2),
        help="Margin rate in percentage of the sale price",
    )

    @api.depends(
        "standard_price_company_currency",
        "order_id.pricelist_id.currency_id",
        "order_id.date_order",
        "product_uom_qty",
        "price_subtotal",
        "order_id.company_id",
    )
    def _compute_margin(self):
        for line in self:
            standard_price_sale_cur = 0.0
            margin_sale_cur = 0.0
            margin_comp_cur = 0.0
            margin_rate = 0.0
            order_cur = line.order_id.pricelist_id.currency_id
            company = line.order_id.company_id
            company_cur = company.currency_id
            if order_cur and company_cur:
                date = line.order_id.date_order
                standard_price_sale_cur = company_cur._convert(
                    line.standard_price_company_currency, order_cur, company, date
                )
                margin_sale_cur = (
                    line.price_subtotal - line.product_uom_qty * standard_price_sale_cur
                )
                margin_comp_cur = order_cur._convert(
                    margin_sale_cur, company_cur, company, date
                )
                if line.price_subtotal:
                    margin_rate = 100 * margin_sale_cur / line.price_subtotal
            line.standard_price_sale_currency = standard_price_sale_cur
            line.margin_sale_currency = margin_sale_cur
            line.margin_company_currency = margin_comp_cur
            line.margin_rate = margin_rate

    # We want to copy standard_price on sale order line
    @api.model
    def create(self, vals):
        if vals.get("product_id"):
            pp = self.env["product.product"].browse(vals["product_id"])
            std_price = pp.standard_price
            sale_uom_id = vals.get("product_uom")
            if sale_uom_id and sale_uom_id != pp.uom_id.id:
                sale_uom = self.env["uom.uom"].browse(sale_uom_id)
                # convert from product UoM to sale UoM
                std_price = pp.uom_id._compute_price(pp.standard_price, sale_uom)
            vals["standard_price_company_currency"] = std_price
        return super(SaleOrderLine, self).create(vals)

    def write(self, vals):
        if not vals:
            vals = {}
        if "product_id" in vals or "product_uom" in vals:
            for sol in self:
                # product_uom and product_id are required fields
                if "product_id" in vals:
                    pp = self.env["product.product"].browse(vals["product_id"])
                else:
                    pp = sol.product_id
                if "product_uom" in vals:
                    sale_uom = self.env["uom.uom"].browse(vals["product_uom"])
                else:
                    sale_uom = sol.product_uom
                std_price = pp.standard_price
                if sale_uom != pp.uom_id:
                    std_price = pp.uom_id._compute_price(std_price, sale_uom)
                sol.write({"standard_price_company_currency": std_price})
        return super(SaleOrderLine, self).write(vals)


class SaleOrder(models.Model):
    _inherit = "sale.order"

    # Also defined in bi_sale_company_currency
    company_currency_id = fields.Many2one(
        related="company_id.currency_id", store=True, string="Company Currency"
    )
    margin_sale_currency = fields.Monetary(
        string="Margin in Sale Currency",
        currency_field="currency_id",
        readonly=True,
        compute="_compute_margin",
        store=True,
    )
    margin_company_currency = fields.Monetary(
        string="Margin in Company Currency",
        currency_field="company_currency_id",
        readonly=True,
        compute="_compute_margin",
        store=True,
    )

    @api.depends(
        "order_line.margin_sale_currency", "order_line.margin_company_currency"
    )
    def _compute_margin(self):
        for order in self:
            margin_sale_cur = 0.0
            margin_comp_cur = 0.0
            for sol in order.order_line:
                margin_sale_cur += sol.margin_sale_currency
                margin_comp_cur += sol.margin_company_currency
            order.margin_sale_currency = margin_sale_cur
            order.margin_company_currency = margin_comp_cur