from flask_sqlalchemy import SQLAlchemy
from flask_login import UserMixin
from datetime import datetime

db = SQLAlchemy()

class User(UserMixin, db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(150), unique=True, nullable=False)
    password = db.Column(db.String(150), nullable=False)

class Job(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
    filename = db.Column(db.String(150), nullable=False)
    status = db.Column(db.String(50), default="Pending")  # Status: Pending, In Progress, Completed
    created_at = db.Column(db.DateTime, default=datetime.utcnow)
    result_filename = db.Column(db.String(150), nullable=True)
    
    user = db.relationship('User', backref=db.backref('jobs', lazy=True))