smart_fare (1).py

import os, hashlib, datetime, random

FOLDER = "smart_fare_data"
BASE_FARE, FARE_PER_KM = 5, 2

ROUTES = {
    "R01": {"name": "City Centre to Airport",       "distance_km": 25},
    "R02": {"name": "Old Town to Tech Park",         "distance_km": 18},
    "R03": {"name": "University to Railway Station", "distance_km": 12},
    "R04": {"name": "Suburbs to Shopping Mall",      "distance_km": 10},
    "R05": {"name": "Hospital to IT Corridor",       "distance_km": 15},
}

# ── helpers ──────────────────────────────────────────────────────────────────
def clear():         os.system("cls" if os.name == "nt" else "clear")
def line(c="="):     print(c * 50)
def header(t):       line(); print("  " + t); line()
def today():         return datetime.date.today().strftime("%Y-%m-%d")
def now():           return datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
def hash_pw(p):      return hashlib.sha256(p.encode()).hexdigest()
def new_id():        return "SF-" + "".join(random.choices("ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789", k=8))
def calc_fare(km):   return BASE_FARE + km * FARE_PER_KM

# ── file i/o ─────────────────────────────────────────────────────────────────
def _path(f):        return FOLDER + "/" + f

def _read(f):
    try:
        with open(_path(f)) as fp: return [l.strip() for l in fp if l.strip()]
    except FileNotFoundError: return []

def _write(f, lines):
    with open(_path(f), "w") as fp: fp.write("\n".join(lines) + "\n")

def load_users():
    u = {}
    for l in _read("users.txt"):
        k, pw, w, j = l.split("|")
        u[k] = {"password": pw, "wallet": float(w), "joined_on": j}
    return u

def save_users(u):
    _write("users.txt", [f"{k}|{v['password']}|{v['wallet']}|{v['joined_on']}" for k, v in u.items()])

def load_tickets():
    t = {}
    for l in _read("tickets.txt"):
        u, tid, route, fare, dt, st = l.split("|")
        t.setdefault(u, []).append({"ticket_id": tid, "route": route, "fare": fare, "booked_on": dt, "status": st})
    return t

def save_tickets(t):
    _write("tickets.txt", [f"{u}|{x['ticket_id']}|{x['route']}|{x['fare']}|{x['booked_on']}|{x['status']}" for u, xs in t.items() for x in xs])

def load_passes():
    p = {}
    for l in _read("passes.txt"):
        u, pid, label, price, s, e = l.split("|")
        p.setdefault(u, []).append({"pass_id": pid, "label": label, "price": price, "start_date": s, "end_date": e})
    return p

def save_passes(p):
    _write("passes.txt", [f"{u}|{x['pass_id']}|{x['label']}|{x['price']}|{x['start_date']}|{x['end_date']}" for u, xs in p.items() for x in xs])

# ── auth ──────────────────────────────────────────────────────────────────────
def register():
    header("CREATE NEW ACCOUNT")
    users = load_users()
    while True:
        u = input("Choose a username: ").strip().lower()
        if not u:       print("Username cannot be empty.")
        elif u in users: print("Username taken. Try another.")
        else:           break
    while True:
        pw = input("Choose a password (min 4 chars): ").strip()
        if len(pw) < 4: print("Password too short."); continue
        if input("Confirm password: ").strip() != pw: print("Passwords do not match.")
        else: break
    while True:
        try:
            bal = float(input("Add money to wallet (Rs.): "))
            if bal >= 0: break
            print("Amount cannot be negative.")
        except ValueError: print("Enter a number like 500.")
    users[u] = {"password": hash_pw(pw), "wallet": bal, "joined_on": today()}
    save_users(users)
    print(f"\nAccount created! Welcome, {u}")
    return u

def login():
    header("LOGIN")
    users, attempts = load_users(), 3
    while attempts > 0:
        u  = input("Username: ").strip().lower()
        pw = input("Password: ").strip()
        if u in users and users[u]["password"] == hash_pw(pw):
            print(f"\nWelcome back, {u}!"); return u
        attempts -= 1
        print(f"Wrong credentials. {attempts} attempt(s) left.")
    print("Too many failed attempts."); return None

# ── transport ─────────────────────────────────────────────────────────────────
def view_profile(u):
    header("MY PROFILE")
    usr = load_users().get(u, {})
    print(f"  Username     : {u}\n  Member Since : {usr.get('joined_on','N/A')}\n  Wallet Bal.  : Rs. {usr.get('wallet',0)}")

def top_up_wallet(u):
    header("PAYMENT / TOP-UP WALLET")
    users = load_users()
    print("Current Balance: Rs.", users[u]["wallet"])
    print("\n  [1] UPI\n  [2] Debit / Credit Card\n  [3] Net Banking\n  [0] Back")
    ch = input("\nYour choice: ").strip()
    methods = {"1": "UPI", "2": "Card", "3": "Net Banking"}
    if ch == "0" or ch not in methods: return
    while True:
        try:
            amt = float(input("Enter amount to add (Rs.): "))
            if amt > 0: break
            print("Amount must be more than 0.")
        except ValueError: print("Enter a valid number.")
    print(f"\nProcessing {methods[ch]} payment of Rs. {amt} ...\nPayment Successful!")
    users[u]["wallet"] += amt
    save_users(users)
    print("New Balance: Rs.", users[u]["wallet"])

def _print_receipt(t, u, bal):
    line("*"); print("       SMART FARE - TICKET RECEIPT"); line("*")
    print(f"  Ticket ID : {t['ticket_id']}\n  Passenger : {u}\n  Route     : {t['route']}")
    print(f"  Fare Paid : Rs. {t['fare']}\n  Date/Time : {t['booked_on']}\n  Status    : {t['status']}")
    print(f"  Balance   : Rs. {bal}"); line("*")
    print("  Thank you for travelling with Smart Fare!"); line("*")

def book_ticket(u):
    header("BOOK A TICKET")
    users = load_users()
    print("Available Routes:\n")
    for code, info in ROUTES.items():
        print(f"  [{code}]  {info['name']}  |  Rs.{calc_fare(info['distance_km'])}")
    rc = input("\nEnter Route Code (e.g. R01): ").strip().upper()
    if rc not in ROUTES: print("Invalid route code."); return
    route, fare, bal = ROUTES[rc], calc_fare(ROUTES[rc]["distance_km"]), users[u]["wallet"]
    print(f"\n  Route    : {route['name']}\n  Distance : {route['distance_km']} km\n  Fare     : Rs. {fare}\n  Wallet   : Rs. {bal}")
    if bal < fare: print(f"Not enough balance! You need Rs. {fare - bal} more."); return
    if input("\nConfirm booking? (y/n): ").strip().lower() != "y": print("Booking cancelled."); return
    users[u]["wallet"] -= fare
    save_users(users)
    new = {"ticket_id": new_id(), "route": route["name"], "fare": fare, "booked_on": now(), "status": "Active"}
    tickets = load_tickets()
    tickets.setdefault(u, []).append(new)
    save_tickets(tickets)
    _print_receipt(new, u, users[u]["wallet"])

def ticket_history(u):
    header("MY TICKET HISTORY")
    my = load_tickets().get(u, [])
    if not my: print("No tickets booked yet."); return
    print(f"Total Tickets: {len(my)}\n")
    for i, t in enumerate(my, 1):
        print(f"  [{i}]  {t['ticket_id']}  |  {t['route']}\n       Fare: Rs.{t['fare']}  |  {t['booked_on']}\n")
    ch = input("Enter ticket number for receipt (or 0 to go back): ").strip()
    try:
        idx = int(ch) - 1
        if 0 <= idx < len(my): _print_receipt(my[idx], u, load_users()[u]["wallet"])
    except ValueError: pass

def buy_pass(u):
    header("BUY A BUS PASS")
    users = load_users()
    print(f"Wallet Balance: Rs. {users[u]['wallet']}\n")
    print("  [1] Weekly Pass   - Rs.299  (20% off, 7 days)")
    print("  [2] Monthly Pass  - Rs.999  (40% off, 30 days)\n  [0] Back")
    ch = input("\nChoose: ").strip()
    opts = {"1": {"label": "Weekly Pass", "price": 299, "days": 7}, "2": {"label": "Monthly Pass", "price": 999, "days": 30}}
    if ch == "0" or ch not in opts: return
    sel, bal = opts[ch], users[u]["wallet"]
    print(f"\n  Pass  : {sel['label']}\n  Price : Rs. {sel['price']}\n  Wallet: Rs. {bal}")
    if bal < sel["price"]: print("Not enough balance."); return
    if input("Confirm purchase? (y/n): ").strip().lower() != "y": print("Cancelled."); return
    users[u]["wallet"] -= sel["price"]
    save_users(users)
    start = datetime.date.today()
    end   = start + datetime.timedelta(days=sel["days"])
    new   = {"pass_id": new_id(), "label": sel["label"], "price": sel["price"], "start_date": str(start), "end_date": str(end)}
    passes = load_passes()
    passes.setdefault(u, []).append(new)
    save_passes(passes)
    line("*"); print("       SMART FARE - PASS RECEIPT"); line("*")
    print(f"  Pass ID : {new['pass_id']}\n  Type    : {new['label']}\n  Valid   : {new['start_date']} to {new['end_date']}")
    print(f"  Price   : Rs. {new['price']}\n  Balance : Rs. {users[u]['wallet']}"); line("*")

def view_passes(u):
    header("MY BUS PASSES")
    my = load_passes().get(u, [])
    if not my: print("No passes bought yet."); return
    td = datetime.date.today()
    for p in my:
        left   = (datetime.date.fromisoformat(p["end_date"]) - td).days
        status = f"Active - {left} days left" if left >= 0 else "Expired"
        print(f"  Pass ID : {p['pass_id']}\n  Type    : {p['label']}\n  Valid   : {p['start_date']} to {p['end_date']}\n  Status  : {status}\n")

# ── dashboard & main ──────────────────────────────────────────────────────────
def dashboard(u):
    actions = {"1": book_ticket, "2": ticket_history, "3": buy_pass, "4": view_passes, "5": top_up_wallet, "6": view_profile}
    while True:
        clear(); line()
        print(f"  SMART FARE  |  Hello, {u.upper()}"); line()
        print("  [1]  Book a Ticket\n  [2]  My Ticket History\n  [3]  Buy a Bus Pass")
        print("  [4]  View My Passes\n  [5]  Payment / Top-Up Wallet\n  [6]  My Profile\n  [0]  Logout"); line()
        ch = input("  Your choice: ").strip()
        if ch == "0": print(f"\nGoodbye, {u}! Travel safe!"); break
        elif ch in actions:
            try: actions[ch](u)
            except Exception as e: print("Something went wrong:", e)
        else: print("Invalid choice.")
        input("\nPress Enter to continue ...")

def main():
    os.makedirs(FOLDER, exist_ok=True)
    while True:
        clear(); line()
        print("           SMART FARE\n     Bus Ticket Management System"); line()
        print("  [1]  Login\n  [2]  Create Account\n  [0]  Exit"); line()
        ch = input("  Your choice: ").strip()
        try:
            if   ch == "1": u = login();    u and dashboard(u)
            elif ch == "2": u = register(); u and dashboard(u)
            elif ch == "0": print("\nThank you for using Smart Fare! Goodbye!\n"); break
            else: print("Invalid choice.")
        except KeyboardInterrupt: print("\n\nApp closed. Goodbye!"); break
        except Exception as e: print("Something went wrong:", e)
        input("\nPress Enter to continue ...")

if __name__ == "__main__":
    main()