from flask_sqlalchemy import SQLAlchemy
from flask_login import UserMixin

from . import db

class User(UserMixin, db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(150), unique=True, nullable=False)
    email = db.Column(db.String(150), unique=True, nullable=False)
    password = db.Column(db.String(150), nullable=False)
    recipes = db.relationship('Recipe', backref='author', lazy=True)
    photo = db.Column(db.String(150), nullable=False)


class Recipe(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(150), nullable=False)
    description = db.Column(db.Text, nullable=False)
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
    ingredients = db.relationship('Ingredient', backref='recipe', lazy=True)
    instructions = db.relationship('Instruction', backref='recipe', lazy=True)

class Ingredient(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(100), nullable=False)
    quantity = db.Column(db.String(50), nullable=False)
    recipe_id = db.Column(db.Integer, db.ForeignKey('recipe.id'), nullable=False)

class Instruction(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    step = db.Column(db.Integer, nullable=False)
    description = db.Column(db.Text, nullable=False)
    recipe_id = db.Column(db.Integer, db.ForeignKey('recipe.id'), nullable=False)