Added NEW Version of Modules - Exercise

Author: MitkoVtori

Advanced/7.Modules/Modules - Exercise/NEW/__pycache__/authentication.cpython-39.pyc

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+from json import loads, dump
+from tkinter import Button, Entry
+from buying_page import display_products
+from canvas import root, frame
+from helpers import clean_screen, get_password_hash
+
+
+def get_users_data():
+    info_data = []
+
+    with open("db/users_information.txt", "r") as users_file:
+        for line in users_file:
+            info_data.append(loads(line))
+
+    return info_data
+
+
+def render_entry():
+    register_btn = Button(
+        root,
+        text="Register",
+        bg="green",  # background color
+        fg="white",  # font color
+        borderwidth=0,
+        width=20,
+        height=3,
+        command=register,
+    )
+
+    login_btn = Button(
+        root,
+        text="Login",
+        bg="blue",
+        fg="white",
+        borderwidth=0,
+        width=20,
+        height=3,
+        command=login,
+    )
+
+    frame.create_window(350, 260, window=register_btn)
+    frame.create_window(350, 320, window=login_btn)
+
+
+def login():
+    clean_screen()
+
+    frame.create_text(100, 50, text="Username:")
+    frame.create_text(100, 100, text="Password:")
+
+    frame.create_window(200, 50, window=username_box)
+    frame.create_window(200, 100, window=password_box)
+
+    frame.create_window(250, 150, window=logging_btn)
+
+
+def logging():
+    if check_logging():
+        display_products()
+    else:
+        frame.create_text(160, 200, text="Invalid username or password!", fill="red")
+
+
+def check_logging():
+    info_data = get_users_data()
+
+    user_username = username_box.get()
+    user_password = get_password_hash(password_box.get())
+
+    for i in range(len(info_data)):
+        username = info_data[i]["username"]
+        password = info_data[i]["password"]
+
+        if username == user_username and password == user_password:
+            return True
+
+    return False
+
+
+def register():
+    clean_screen()
+
+    frame.create_text(100, 50, text="First name:")
+    frame.create_text(100, 100, text="Last name:")
+    frame.create_text(100, 150, text="Username:")
+    frame.create_text(100, 200, text="Password:")
+
+    frame.create_window(200, 50, window=first_name_box)
+    frame.create_window(200, 100, window=last_name_box)
+    frame.create_window(200, 150, window=username_box)
+    frame.create_window(200, 200, window=password_box)
+
+    registration_btn = Button(
+        root,
+        text="Register",
+        bg="green",
+        fg="white",
+        command=registration,
+    )
+
+    frame.create_window(300, 250, window=registration_btn)
+
+
+def registration():
+    info_dict = {
+        "first_name": first_name_box.get(),
+        "last_name": last_name_box.get(),
+        "username": username_box.get(),
+        "password": get_password_hash(password_box.get()),
+    }
+
+    if check_registration(info_dict):
+        with open("db/users_information.txt", "a") as users_file:
+            dump(info_dict, users_file)
+            users_file.write('\n')
+            display_products()
+
+
+def check_registration(info):
+    for el in info.values():
+        if not el.strip():
+            frame.create_text(
+                300,
+                300,
+                text="We are missing some information!",
+                fill="red",
+                tag="error"
+            )
+
+            return False
+
+    frame.delete("error")
+
+    info_data = get_users_data()
+
+    for record in info_data:
+        if record["username"] == info["username"]:
+            frame.create_text(
+                300,
+                300,
+                text="User with this username already exists!",
+                fill="red",
+                tag="error",
+            )
+
+            return False
+
+    frame.delete("error")
+
+    return True
+
+
+def check_if_login_is_fulfilled(event):
+    info = {
+        "username": username_box.get(),
+        "password": password_box.get(),
+    }
+
+    for el in info.values():
+        if not el.strip():
+            logging_btn["state"] = "disabled"
+            break
+    else:
+        logging_btn["state"] = "normal"
+
+
+first_name_box = Entry(root, bd=0)
+last_name_box = Entry(root, bd=0)
+username_box = Entry(root, bd=0)
+password_box = Entry(root, bd=0, show="*")  # let the user choose
+
+logging_btn = Button(
+    root,
+    text="Login",
+    bg="blue",
+    fg="white",
+    command=logging,
+)
+
+logging_btn["state"] = "disabled" # options: active, normal, disabled
+
+root.bind('<KeyRelease>', check_if_login_is_fulfilled)

Advanced/7.Modules/Modules - Exercise/NEW/__pycache__/buying_page.cpython-39.pyc

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+from json import load, dump
+from tkinter import Button
+from PIL import Image, ImageTk
+from canvas import frame, root
+from helpers import clean_screen
+
+
+def display_products():
+    clean_screen()
+    display_stock()
+
+
+def display_stock():
+    global info
+
+    with open("db/products_data.json", "r") as stock:
+        info = load(stock)
+
+    x, y = 150, 50
+
+    for item_name, item_info in info.items():
+        item_img = ImageTk.PhotoImage(Image.open(item_info["image"]))
+        images.append(item_img)
+
+        frame.create_text(x, y, text=item_name, font=("Comic Sans MS", 15))
+        frame.create_image(x, y + 100, image=item_img)
+
+        if item_info["quantity"] > 0:
+            color = "green"
+            text = f"In stock: {item_info['quantity']}"
+
+            item_btn = Button(
+                root,
+                text="Buy",
+                font=("Comic Sans MS", 12),
+                bg="green",
+                fg="white",
+                width=5,
+                command=lambda x=item_name: buy_product(x),
+            )
+
+            frame.create_window(x, y + 230, window=item_btn)
+        else:
+            color = "red"
+            text = "Out of stock"
+
+        frame.create_text(x, y + 180, text=text, font=("Comic Sans MS", 12), fill=color)
+
+        x += 200
+
+        if x > 550:
+            x = 150
+            y += 230
+
+
+def buy_product(product):
+    info[product]["quantity"] -= 1
+
+    with open("db/products_data.json", "w") as stock:
+        dump(info, stock)
+
+    display_products()
+
+
+images = []
+info = {}

Advanced/7.Modules/Modules - Exercise/NEW/__pycache__/canvas.cpython-39.pyc

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+from tkinter import Tk, Canvas
+
+
+def create_root():
+    root = Tk()
+
+    root.title("GUI Shop")
+    root.resizable(False, False)
+    root.geometry("700x600")
+
+    return root
+
+
+def create_frame():
+    frame = Canvas(root, width=700, height=700)
+    frame.grid(row=0, column=0)
+
+    return frame
+
+
+root = create_root()
+frame = create_frame()

Advanced/7.Modules/Modules - Exercise/NEW/__pycache__/helpers.cpython-39.pyc

@@ -0,0 +1 @@
+{"puma blue t-shirt": {"quantity": 2, "image": "images/blue_t_shirt.png"}, "nike blue t-shirt": {"quantity": 13, "image": "images/blue_t_shirt.png"}, "jeans": {"quantity": 5, "image": "images/black_jeans.png"}, "shoes": {"quantity": 14, "image": "images/shoes.png"}}

Advanced/7.Modules/Modules - Exercise/NEW/authentication.py

@@ -0,0 +1,2 @@
+{"first_name": "Dimitar", "last_name": "Dimitrov", "username": "MitkoVtori", "password": "a1fe8f79a121256842e7aaef2ab1e339a553a74fe05834ca081259cf66ac5fb5"}
+{"first_name": "Gogo", "last_name": "gogo", "username": "xx", "password": "2d711642b726b04401627ca9fbac32f5c8530fb1903cc4db02258717921a4881"}

Advanced/7.Modules/Modules - Exercise/NEW/buying_page.py

@@ -0,0 +1,12 @@
+from hashlib import sha256
+from canvas import frame
+
+
+def clean_screen():
+    frame.delete("all")
+
+
+def get_password_hash(password):
+    hash_object = sha256(password.encode())
+
+    return str(hash_object.hexdigest())

Advanced/7.Modules/Modules - Exercise/NEW/canvas.py

@@ -0,0 +1,7 @@
+from authentication import render_entry
+from canvas import root
+
+
+if __name__ == '__main__':
+    render_entry()
+    root.mainloop()