# -*- coding: utf-8 -*-
from odoo import api, fields, models

class SurveySurvey(models.Model):
    _inherit = 'survey.survey'

    scoring_formula = fields.Selection([
        ('total', 'Total Score'),
        ('average', 'Average Score'),
    ], string='Scoring Formula', default='total', required=True)

    @api.depends(
        'question_and_page_ids',
        'question_and_page_ids.suggested_answer_ids',
        'question_and_page_ids.suggested_answer_ids.answer_score',
        'question_and_page_ids.question_type',
        'question_and_page_ids.scale_max',
        'question_and_page_ids.scale_multiplier',
    )
    def _compute_scoring_max_obtainable(self):
        super()._compute_scoring_max_obtainable()
        for survey in self:
            scale_max_obtainable = sum(
                (question.scale_max * question.scale_multiplier)
                for question in survey.question_ids
                if question.question_type == 'scale' and question.is_scored_question
            )
            survey.scoring_max_obtainable += scale_max_obtainable