from odoo import api, fields, models
from odoo.exceptions import ValidationError


class AcademicLevel(models.Model):
    _name = 'education.academic.level'
    _description = 'Academic Level'
    _order = 'sequence, name'

    name = fields.Char(required=True, string='Level Name')
    code = fields.Char(required=True, string='Level Code', index=True)
    sequence = fields.Integer(default=10)
    description = fields.Text(string='Description')
    active = fields.Boolean(default=True)
    company_id = fields.Many2one(
        'res.company',
        string='Company',
        required=True,
        default=lambda self: self.env.company,
        index=True,
    )

    _sql_constraints = [
        ('uniq_academic_level_code_company', 'unique(code, company_id)', 'Academic level code must be unique per company.'),
    ]

    @api.constrains('name', 'company_id')
    def _check_unique_name(self):
        for rec in self:
            if self.search_count([
                ('company_id', '=', rec.company_id.id),
                ('name', '=ilike', rec.name),
                ('id', '!=', rec.id),
            ]):
                raise ValidationError('Academic level name must be unique within a company.')