from odoo import models, fields, api

class SchoolSubjectTeacherInfo(models.Model):
    _name = 'school.subject.teacher.info'
    _description = 'Subject Teacher Info'

    subject_id = fields.Many2one('school.subject', string='Subject', required=True, ondelete='cascade')

    # Related fields to auto-fetch from related subject's teacher (res.users)
    teacher_user_id = fields.Many2one(related='subject_id.teacher', string="Teacher User", store=True)
    employee_name = fields.Char(string='Teacher Name', compute="_compute_teacher_fields", store=True)
    phone = fields.Char(string='Phone', compute="_compute_teacher_fields", store=True)
    email = fields.Char(string='Email', compute="_compute_teacher_fields", store=True)
    profile_photo = fields.Binary(string="Profile Photo", compute="_compute_teacher_fields", store=True)

    # Editable fields for extra info
    activity = fields.Char(string='Activity')
    activity_deadline = fields.Date(string='New Activity Deadline')
    department = fields.Char(string='Department')
    job_position = fields.Char(string='Job Position')
    manager = fields.Char(string='Manager')
    address = fields.Text(string="Address")
    experience = fields.Integer(string="Experience (Years)")
    date_of_birth = fields.Date(string="Date of Birth")
    join_date = fields.Date(string="Join Date")

    @api.depends('subject_id.teacher')
    def _compute_teacher_fields(self):
        for rec in self:
            user = rec.subject_id.teacher
            rec.employee_name = user.name if user else ''
            rec.email = user.email if user else ''
            rec.phone = user.phone if user else ''
            rec.profile_photo = user.image_1920 if user else False