# -*- coding: utf-8 -*-
# Part of Odoo. See LICENSE file for full copyright and licensing details.

from odoo import fields, models, api

class PosOrderLine(models.Model):
    _inherit = 'pos.order.line'

    is_reward_line = fields.Boolean(
        help="Whether this line is part of a reward or not.")
    reward_id = fields.Many2one(
        'loyalty.reward', "Reward", ondelete='restrict',
        help="The reward associated with this line.", index='btree_not_null')
    coupon_id = fields.Many2one(
        'loyalty.card', "Coupon", ondelete='restrict',
        help="The coupon used to claim that reward.")
    reward_identifier_code = fields.Char(help="""
        Technical field used to link multiple reward lines from the same reward together.
    """)
    points_cost = fields.Float(help="How many point this reward cost on the coupon.")

    def _is_not_sellable_line(self):
        return super().is_not_sellable_line() or self.reward_id

    @api.model
    def _load_pos_data_fields(self, config_id):
        params = super()._load_pos_data_fields(config_id)
        params += ['is_reward_line', 'reward_id', 'reward_identifier_code', 'points_cost', 'coupon_id']
        return params