from datetime import datetime
from app import db, login_manager
from flask_login import UserMixin

@login_manager.user_loader 
def load_user(user_id):
    return User.query.get(int(user_id))

class User(db.Model,UserMixin):
    id= db.Column(db.Integer,primary_key= True)
    username= db.Column(db.String(20),unique= True, nullable= False)
    email= db.Column(db.String(120),unique= True, nullable= False)
    image_file= db.Column(db.String(200),nullable= False, default= 'default.jpg')
    password= db.Column(db.String(60),nullable= False)
    posts=db.relationship('Post',backref= "author", lazy= True)

    def __repr__(self):
        return f"User('{self.username}','{self.email}','{self.image_file}')"

class Post(db.Model):
    id= db.Column(db.Integer,primary_key= True)
    title= db.Column(db.String(100), nullable= False)
    date_posted=db.Column(db.DateTime, default=datetime.utcnow)
    content=db.Column(db.Text, nullable= False)
    user_id=db.Column(db.Integer,db.ForeignKey('user.id'), nullable= False)

    def __repr__(self):
        return f"User('{self.title}','{self.date_posted}')"