from app import db,login
from datetime import datetime
from werkzeug.security import generate_password_hash, check_password_hash
from flask_login import UserMixin

@login.user_loader
def load_user(id):
    return User.query.get(int(id))

class User(UserMixin, db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(64), index=True, unique=True)
    password_hash = db.Column(db.String(128))
    last_login = db.Column(db.DateTime, default=datetime.utcnow)
    files = db.relationship('Import', backref='analyst', lazy='dynamic')

    def __repr__(self):
        return '<User {}>'.format(self.username)

    def set_password(self, password):
        self.password_hash = generate_password_hash(password)

    def check_password(self, password):
        return check_password_hash(self.password_hash, password)


class Import(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    file_name = db.Column(db.String(256))
    timestamp = db.Column(db.DateTime, index=True, default=datetime.utcnow)
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'))

    def __repr__(self):
        return '<Import {}>'.format(self.file_name)

@login.user_loader
def load_user(id):
    return User.query.get(int(id))
