from odoo import tests
from odoo.addons.hr_payroll.tests.common import TestPayslipBase
from odoo.exceptions import UserError


@tests.tagged('post_install', '-at_install')
class TestRuleSection(TestPayslipBase):

    @classmethod
    def setUpClass(cls):
        super().setUpClass()

    def test_unlink_section_constraints(self):
        """
        Test deletion constraints for Salary Rule Sections:
        1. Linked to an Input Rule -> Blocked
        2. Linked to an unused Rule -> Allowed
        3. Not linked to anything -> Allowed
        """
        active_input_section, unused_rule_section, unused_section = self.env['hr.salary.rule.section'].create([
            {'name': 'Active Input Section', 'sequence': 1},
            {'name': 'Unused Rule Section', 'sequence': 2},
            {'name': 'Unused Section', 'sequence': 3},
        ])

        self.hra_rule.write({
            'condition_select': 'property_input',
            'input_section': active_input_section.id,
        })
        self.developer_pay_structure.write({
            'version_properties_definition': [
                {'name': str(self.hra_rule.id), 'type': 'float', 'default': 0.0}
            ]
        })
        self.hra_rule._compute_input_used_in_definition()

        self.conv_rule.write({
            'condition_select': 'property_input',
            'input_section': unused_rule_section.id,
        })
        self.conv_rule._compute_input_used_in_definition()

        with self.assertRaises(UserError):
            active_input_section.unlink()

        unused_rule_section.unlink()
        self.assertFalse(unused_rule_section.exists())

        unused_section.unlink()
        self.assertFalse(unused_section.exists())