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

class User(UserMixin, db.Model):
    __tablename__ = 'users'
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(64), unique=True, index=True)
    email = db.Column(db.String(120), unique=True, index=True)
    password_hash = db.Column(db.String(256))
    google_id = db.Column(db.String(128), unique=True, nullable=True)
    is_admin = db.Column(db.Boolean, default=False)
    is_probation = db.Column(db.Boolean, default=True)
    profile_pic_url = db.Column(db.String(256))
    
    restaurants = db.relationship('Restaurant', backref='author', lazy='dynamic')

    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)

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

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

class Restaurant(db.Model):
    __tablename__ = 'restaurants'
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(128), index=True)
    address = db.Column(db.String(256))
    latitude = db.Column(db.Float)
    longitude = db.Column(db.Float)
    google_place_id = db.Column(db.String(128)) # To link with Google Maps
    
    # Lunch Special Info
    min_price = db.Column(db.Float)
    max_price = db.Column(db.Float)
    single_price = db.Column(db.Boolean, default=False)
    drink_included = db.Column(db.Boolean, default=False)
    options_count = db.Column(db.Integer)
    
    # User Review/Rating
    user_rating = db.Column(db.Integer) # 1-10
    user_description = db.Column(db.Text)
    
    # Meta
    created_at = db.Column(db.DateTime, default=datetime.utcnow)
    status = db.Column(db.String(20), default='pending') # pending, approved, rejected
    user_id = db.Column(db.Integer, db.ForeignKey('users.id'))
    
    images = db.relationship('RestaurantImage', backref='restaurant', lazy='dynamic', cascade="all, delete-orphan")

    def __repr__(self):
        return f'<Restaurant {self.name}>'

class RestaurantImage(db.Model):
    __tablename__ = 'restaurant_images'
    id = db.Column(db.Integer, primary_key=True)
    image_url = db.Column(db.String(512))
    restaurant_id = db.Column(db.Integer, db.ForeignKey('restaurants.id'))