routes.py

import datetime

FOLDER = "smart_fare_data"

ALL_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},
}

def _fpath(f):  return FOLDER + "/" + f

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

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

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

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])