models.py

from app import db

class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(150), nullable=False, unique=True)
    password_hash = db.Column(db.String(128), nullable=False)
    email = db.Column(db.String(150), nullable=False, unique=True)
    role = db.Column(db.String(50), nullable=False)  # 'admin' or 'customer'

class Product(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(150), nullable=False)
    description = db.Column(db.String(500), nullable=False)
    price = db.Column(db.Float, nullable=False)
    stock = db.Column(db.Integer, nullable=False)

class Order(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
    product_id = db.Column(db.Integer, db.ForeignKey('product.id'), nullable=False)
    quantity = db.Column(db.Integer, nullable=False)
    status = db.Column(db.String(50), nullable=False)  # 'pending', 'shipped', etc.