from sqlalchemy import Column, Integer, ForeignKey, Date, Boolean
from sqlalchemy.sql import func
from sqlalchemy.orm import relationship

from app.domain.models import Base


class CourseStudent(Base):
    __tablename__ = 'course_students'

    id = Column(Integer, primary_key=True, autoincrement=True)
    enrollment_date = Column(Date, nullable=False, default=func.utcnow)
    is_finished = Column(Boolean, nullable=False, default=False)

    course_id = Column(Integer, ForeignKey('courses.id'), nullable=False)
    user_id = Column(Integer, ForeignKey('users.id'), nullable=False)

    course = relationship('Course', back_populates='students')
    user = relationship('User', back_populates='enrolled_courses')