from __future__ import annotations

import json
import datetime
import os

from typing import List

from sqlalchemy import create_engine, BLOB, Column, Boolean, Float, Integer, String, JSON, DateTime, ForeignKey
from sqlalchemy.ext.declarative import declarative_base 
from sqlalchemy.orm import DeclarativeBase, sessionmaker, relationship, Mapped, mapped_column
from loguru import logger

from flask_login import UserMixin

# create an in-memory SQLite database 
engine = create_engine('sqlite:///db.sqlite', echo=True) 
Session = sessionmaker(bind=engine) 
session = Session() 

Base = declarative_base()

class User(UserMixin, Base):
    __tablename__ = 'User'
    username = Column(String, primary_key=True, unique=True)
    hashed_password = Column(String)
    salt = Column(String)
class Log(Base): #TODO uSe
    __tablename__ = 'Log'
    number = Column(Integer, primary_key=True) 
    created_at = Column(DateTime, default=datetime.datetime.now)
    desk_ = Column(Integer) 
    ip = Column(Integer)
    def __init__(self, desk, ip, tel_nr):
        self.desk = desk
        self.ip = ip

class QR(Base): #TODO: Decide if encryption Salting hasing and anti rainbow attack is eeded for the qr codes?
    __tablename__ = 'qr'
    desk = Column(Integer, primary_key=True)
    qr_secret = Column(Integer)
    qr_img = Column(BLOB)

    def __init__(self, desk, qr_img, qr_secret=0):
        self.desk = desk
        self.qr_secret = qr_secret
        self.qr_img = qr_img

class Product(Base):
    __tablename__ = 'product'
    id = mapped_column(Integer, primary_key=True) 
    name = Column(String) 
    quantity = Column(Integer)
    order_id = mapped_column(ForeignKey("order.id"))
    order = relationship("Order", back_populates="order")

    def __init__(self, quantity,name, order_id):
        self.quantity = quantity
        self.name = name
        self.order_id = order_id
        self.date = datetime.datetime.now()

class Order(Base):
    __tablename__ = 'order'
    id = mapped_column(Integer, primary_key=True) 
    order = relationship("Product", back_populates="order")
    desk_number = Column(Integer) 
    finished = Column(Boolean) 
    
    def __init__(self, desk_number, finished=False, ):
        self.desk_number = desk_number
        self.desk = 1
        #TODO: replace product-order.json whit json object POST from flask
        # That means a UI for setting all values.
        self.finished = finished

Base.metadata.create_all(engine)