Alpha release

Server/DB/handler.py

@@ -0,0 +1,77 @@
+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)