from odoo import api, fields, models, _


class EventQuestionAnswerProduct(models.Model):
    _name = "event.question.answer.product"
    _rec_name = "product_id"

    answer_id = fields.Many2one(
        comodel_name="event.question.answer",
        string="Answer",
        required=True,
        ondelete="cascade",
    )
    product_id = fields.Many2one(
        comodel_name="product.product",
        string="Product variant",
    )
    price_unit = fields.Float(
        string="Unit price",
        digits="Product Price",
    )
    quantity = fields.Float(
        string="Quantity",
        digits="Product Unit of Measure",
    )
    uom_category_id = fields.Many2one(
        related="product_id.uom_id.category_id",
        depends=["product_id"],
    )
    uom_id = fields.Many2one(
        comodel_name="uom.uom",
        string="Unit of Measure",
        compute="_compute_uom_id",
        store=True,
        readonly=False,
        precompute=True,
        ondelete="restrict",
        domain="[('category_id', '=', uom_category_id)]",
    )

    def name_get(self):
        res = []
        for eqap in self:
            res.append(
                (
                    eqap.id,
                    _("{} x {} at {}").format(
                        eqap.quantity,
                        eqap.product_id.display_name,
                        eqap.answer_id.question_id.event_id.company_id.currency_id.format(
                            eqap.price_unit
                        ),
                    ),
                )
            )
        return res

    @api.depends("product_id")
    def _compute_uom_id(self):
        for eqap in self:
            product = eqap.product_id
            uom = eqap.uom_id
            if not product:
                eqap.uom_id = False
            elif not uom or (product.uom_id.id != uom.id):
                eqap.uom_id = product.uom_id