[rewrite] Initial project structure with dashboard frontend and api

backend/app/models/cart_model.py

@@ -0,0 +1,63 @@
+from datetime import datetime
+
+class Cart:
+    """
+    Represents a cart in the system.
+
+    :param id: The unique identifier of the cart.
+    :type id: int
+    :param price_total: The total price of the cart.
+    :type price_total: float
+    :param item_count: The count of items in the cart.
+    :type item_count: int
+    """
+
+    def __init__(
+        self,
+        cart_id: int = None,
+        price_total: float = 0.00,
+        item_count: int = 0,
+    ):
+        self.id = cart_id
+        self.price_total = price_total
+        self.item_count = item_count
+
+    def __repr__(self):
+        return f"Cart(id={self.id}, price_total={self.price_total}, item_count={self.item_count})"
+
+class CartItem:
+    """
+    Represents a cart item in the system.
+
+    :param id: The unique identifier of the cart item.
+    :type id: int
+    :param cart_id: The identifier of the cart.
+    :type cart_id: int
+    :param product_id: The identifier of the product.
+    :type product_id: int
+    :param count: The count of the product in the cart.
+    :type count: int
+    :param price_subtotal: The subtotal price of the product in the cart.
+    :type price_subtotal: float
+    :param date_added: The date and time when the item was added to the cart.
+    :type date_added: datetime
+    """
+
+    def __init__(
+        self,
+        cart_item_id: int = None,
+        cart_id: int = None,
+        product_id: int = None,
+        count: int = 0,
+        price_subtotal: float = 0.00,
+        date_added: datetime = None,
+    ):
+        self.id = cart_item_id
+        self.cart_id = cart_id
+        self.product_id = product_id
+        self.count = count
+        self.price_subtotal = price_subtotal
+        self.date_added = date_added or datetime.now()
+
+    def __repr__(self):
+        return f"CartItem(id={self.id}, cart_id={self.cart_id}, product_id={self.product_id}, count={self.count}, price_subtotal={self.price_subtotal}, date_added={self.date_added})"

backend/app/models/product_model.py

@@ -0,0 +1,38 @@
+from datetime import datetime
+from decimal import Decimal
+
+
+class Product:
+    """
+    Represents a product in the system.
+
+    :param id: The unique identifier of the product.
+    :type id: int
+    :param seller_id: The user ID of the seller.
+    :type seller_id: int
+    :param name: The name of the product.
+    :type name: str
+    :param price: The price of the product.
+    :type price: Decimal
+    :param creation_date: The date and time when the product was created.
+    :type creation_date: datetime
+    """
+
+    def __init__(
+        self,
+        product_id: int = None,
+        seller_id: int = None,
+        seller_name: str = None,
+        name: str = None,
+        price: Decimal = None,
+        creation_date: datetime = None,
+    ):
+        self.product_id = product_id
+        self.seller_id = seller_id
+        self.seller_name = seller_name
+        self.name = name
+        self.price = price
+        self.creation_date = creation_date
+
+    def __repr__(self):
+        return f"Product(product_id={self.product_id}, seller_id={self.seller_id}, seller_name={self.seller_name}, name='{self.name}', price={self.price}, creation_date={self.creation_date!r})"

backend/app/models/user_model.py

@@ -0,0 +1,44 @@
+from datetime import datetime
+
+
+class User:
+    """
+    Represents a user in the system.
+
+    :param user_id: The unique identifier of the user.
+    :type user_id: int
+    :param username: The username of the user.
+    :type username: str
+    :param displayname: The display name of the user.
+    :type displayname: str
+    :param email: The email address of the user.
+    :type email: str
+    :param password: The hashed password of the user.
+    :type password: str
+    :param role_id: The role ID of the user. Defaults to 1.
+    :type role_id: int
+    :param creation_date: The date and time when the user was created.
+    :type creation_date: datetime
+    
+    """
+
+    def __init__(
+        self,
+        user_id: str = None,
+        username: str = None,
+        displayname: str = None,
+        email: str = None,
+        password: str = None,
+        role_id: int = 1,
+        creation_date: datetime = None,
+    ):
+        self.user_id = user_id
+        self.username = username
+        self.displayname = displayname
+        self.email = email
+        self.password = password
+        self.role_id = role_id
+        self.creation_date = creation_date
+
+    def __repr__(self):
+        return f"User(id={self.user_id}, username={self.username}, displayname={self.displayname}, email={self.email}, password={self.password}, role_id={self.role_id}, creation_date={self.creation_date})"