from odoo import fields, models


class CommunitySchoolAttendance(models.Model):
    _name = 'community.school.attendance'
    _description = 'School Attendance'
    _order = 'date desc, id desc'

    enrollment_id = fields.Many2one('community.school.enrollment', required=True, ondelete='cascade')
    class_id = fields.Many2one(related='enrollment_id.class_id', store=True)
    date = fields.Date(required=True, default=fields.Date.context_today)
    state = fields.Selection(
        [
            ('present', 'Present'),
            ('absent', 'Absent'),
            ('late', 'Late'),
            ('excused', 'Excused'),
        ],
        default='present', required=True,
    )
    notes = fields.Char()

    _enrollment_date_uniq = models.Constraint(
        'unique(enrollment_id, date)', 'Attendance for this student on this date is already recorded.',
    )

    def _send_absence_notice(self):
        self.ensure_one()
        template = self.env.ref('community_school.mail_template_absence_notice', raise_if_not_found=False)
        if template:
            template.send_mail(self.id, force_send=False)