from extensions import db
from sqlalchemy import Column, Integer, String, DateTime, Float, ForeignKey
from sqlalchemy.orm import relationship
from datetime import datetime

class Employee(db.Model):
    __tablename__ = 'employee'

    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    username = db.Column(db.String(80), unique=True, nullable=True)
    email = db.Column(db.String(120), unique=True, nullable=False)
    group = db.Column(db.String(80), unique=True, nullable=True)
    contract_type = db.Column(db.String(80), unique=True, nullable=False)
    date = db.Column(db.Date, nullable=True)
    expected_entry_time = db.Column(db.DateTime, nullable=False)
    expected_exit_time = db.Column(db.DateTime, nullable=False)
    
    # Relacionamento hierárquico
    parent_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=True)

    def __repr__(self):
        return f"<Employee {self.name}>"