from odoo import models, _
from odoo.exceptions import UserError


class Base(models.AbstractModel):
    _inherit = 'base'

    def unlink(self):
        if not self.env.context.get('module_uninstall'):
            self._check_survey_record_creation_references()
        return super().unlink()

    def _check_survey_record_creation_references(self):
        if not self or self._name in (
            'survey.record.creation.field.values',
            'survey.record.creation.field.values.x2m',
        ):
            return

        FieldValues = self.env['survey.record.creation.field.values'].sudo()
        if not FieldValues.search_count([('field_id.relation', '=', self._name)], limit=1):
            return

        references = [f"{self._name},{record.id}" for record in self]

        used_in_m2o = FieldValues.search([
            ('fixed_value_many2one', 'in', references),
        ])
        used_in_m2m = self.env['survey.record.creation.field.values.x2m'].sudo().search([
            ('value_reference', 'in', references),
        ])

        if not used_in_m2o and not used_in_m2m:
            return

        usages = set()
        for fv in used_in_m2o:
            usages.add((
                fv.survey_id.display_name or '',
                fv.field_id.field_description or fv.field_id.name or '',
                fv.fixed_value_many2one.display_name or '',
            ))
        for fvx in used_in_m2m:
            parent = fvx.survey_record_creation_field_values_id
            usages.add((
                parent.survey_id.display_name or '',
                parent.field_id.field_description or parent.field_id.name or '',
                fvx.value_reference.display_name or '',
            ))

        usage_lines = '\n'.join(
            '- ' + _(
                'Survey "%(survey)s", field "%(field)s" (value: %(value)s)',
                survey=survey, field=field, value=value,
            )
            for survey, field, value in sorted(usages)
        )

        raise UserError(_(
            'Cannot delete this record because it is used as a default value '
            'in the following survey record creation configurations:\n\n'
            '%(usages)s\n\n'
            'Please update or remove the corresponding survey configuration first.',
            usages=usage_lines,
        ))