updating main (#3)

I haven't updated main in a while. Updating main via gh web.

README.md

@@ -12,6 +12,8 @@
 
 ### EXTRA RESOURCES (Some Paid, Some Free):
 - [Interesting Code](https://www.keithschwarz.com/interesting/) by Stanford Prof. Keith Schawrz
+- [Advent of Code [2025]](https://adventofcode.com/2025)
+- [Advent of Code [2024]](https://adventofcode.com/2024)
 - [Advent of Code [2023]](https://adventofcode.com/2023)
 - [Advent of Code [2022]](https://adventofcode.com/2022)
 - [Advent of Code [202]](https://adventofcode.com/2021)
@@ -21,7 +23,9 @@
 - [Advent of Code [2017]](https://adventofcode.com/2017)
 - [Advent of Code [2016]](https://adventofcode.com/2016)
 - [Advent of Code [2015]](https://adventofcode.com/2015)
-- [Marlen09](https://leetcode.com/Marlen09/)
+
+### LEETCODE.COM:
+- [leetcoder: Marlen09](https://leetcode.com/Marlen09/)
 
 ## SEE THE FUTURE:
 In the future, I plan to add more content like:

card_issuer/helpers.py

@@ -0,0 +1,81 @@
+import random
+
+amex_issued_set = set()
+visa_issued_set = set()
+master_issued_set = set()
+
+
+def issue_card(user_credit):
+    """issue card based on credit"""
+    if user_credit < 300 or user_credit > 850:
+        print("One of our Client Concierge will be with your shorty!")
+        return None
+
+    if user_credit >= 720:
+        print("Excellent, we can offer you the Deluxe AMEX card.\nProcessing....\n")
+        return select_card("amex")
+
+    if user_credit >= 690:
+        print("Great, we can offer you our Premium VISA card.\nProcessing....\n")
+        return select_card("visa")
+
+    if user_credit >= 630:
+        print(
+            "Awesome, we can offer you own of our Premium MASTERCard.\nProcessing....\n"
+        )
+        return select_card("master")
+
+
+def get_servicers():
+    """returns an object of card servicers available at the firm"""
+    return {
+        "amex": {"function": amex_factory, "issued": amex_issued_set},
+        "visa": {"function": visa_factory, "issued": visa_issued_set},
+        "master": {"function": master_factory, "issued": master_issued_set},
+    }
+
+
+def select_card(pmt_servicer: str) -> str:
+    """selects card for customer"""
+    if not pmt_servicer or pmt_servicer not in ["amex", "visa", "master"]:
+        error_message = "Card Payment Servicer was not provided. Info logged. Application   will terminate now."
+        raise ValueError(error_message)
+    servicers = get_servicers()
+    card_generator = servicers[pmt_servicer]["function"]
+    issued_cards_set = servicers[pmt_servicer]["issued"]
+    return generate_card(pmt_servicer, card_generator, issued_cards_set)
+
+
+def generate_card(svc, card_generator, verifier):
+    """generates a new card based on servicer:str, card_generator:def, verifier:set"""
+    new_card = card_generator()
+    while new_card in verifier:
+        new_card = card_generator()
+    return new_card
+
+
+def amex_factory():
+    """generates a fake amex card"""
+    amex_id = random.randint(32000, 85000)
+    group_nums = random.randint(312123, 985430)
+    customer_nums = random.randint(32000, 85000)
+    return f"{amex_id}-{group_nums}-{customer_nums}"
+
+
+def visa_factory():
+    """generates a fake visa card"""
+    visa_id = random.randint(4100, 4999)
+    bank_id = random.randint(1111, 9000)
+    group_id = random.randint(1110, 9900)
+    client_id = random.randint(1100, 9990)
+    return f"{visa_id}-{bank_id}-{group_id}-{client_id}"
+
+
+def master_factory():
+    """a fake master card generator"""
+
+    issuer_id = random.randint(5100, 5999)
+    group_id1 = random.randint(1111, 9999)
+    group_id2 = random.randint(1111, 9999)
+    customer_id = random.randint(1111, 9999)
+    return f"{issuer_id}-{group_id1}-{group_id2}-{customer_id}"

card_issuer/main.py

@@ -0,0 +1,77 @@
+"""importing datetime module"""
+import datetime
+import random
+from helpers import issue_card
+
+scapital_clients = {}
+
+
+def get_user_info(new_user=True):
+    """prompt user for information to create account"""
+    if new_user:
+        print(f"System Time: {datetime.datetime.now()}")
+        fname = input("Enter your first name: ")
+        lname = input("Enter your last name: ")
+        username, pwd = create_user_profile()
+        m, d, y = input("Enter DOB: MM-DD-YYYY: ").split("-")
+        dob = datetime.datetime(year=int(y), month=int(m), day=int(d))
+        credit_score = int(input("Enter your FICO score: "))
+
+    scapital_clients[username]["first"] = fname
+    scapital_clients[username]["last"] = lname
+    scapital_clients[username]["dob"] = dob
+    scapital_clients[username]["password"] = pwd
+    scapital_clients[username]["credit_score"] = credit_score
+
+    return username
+
+
+def create_user_profile():
+    """creates user profile"""
+    username = input("Enter your username: ")
+
+    while username in scapital_clients.keys():
+        print("This username already exist, please try again")
+        username = input("Enter your username: ")
+
+    pwd_constraints = "Passwords must be: 8 characters long and alphanumeric."
+    password = input(pwd_constraints + "\nEnter your password: ")
+    while not password or len(password) <= 8 or not str(password).isalnum():
+        password = input("Enter your password: ")
+    scapital_clients[username] = {"user": username, "pwd": password}
+    return username, password
+
+
+def start_app(start=False):
+    if start:
+        print("Welcome to Simus Capital Premium Cards Service!")
+        username = get_user_info()
+        user_data = scapital_clients[username]
+        fname = user_data["first"]
+        greeting = f"Hi {fname}!"
+        print(greeting)
+        print()
+        print("Accessing credit history...")
+        card_issued = issue_card(user_data["credit_score"])
+        # print(card_issued)s
+        if card_issued is None:
+            print(
+                "Please provide your local contact phone number,\nand a member of our client concierge will reach out to you\nwithin 60 minutes."
+            )
+            contact_number = input()
+            scapital_clients[username]["phone"] = (
+                contact_number
+                if len(contact_number) >= 8
+                else "".join("555-555-5555".split("-"))
+            )
+            print(f"{scapital_clients[username]["first"]}, thank you for using S Capital as your preferred financial institution.")
+            print(f"Our team will review your account and get back to you within 30 days.")
+            print(f"We will contact you at {scapital_clients[username]["phone"]}")
+            return
+        scapital_clients[username]["card1"] = card_issued
+        print("Congratulations!")
+        print("Welcome to the Simus Capital card-holders family!")
+        print(f"Your new car number is {scapital_clients[username]['card1']}")
+
+if __name__ == "__main__":
+    start_app(start=True)