app.py

import os
import hashlib
import streamlit as st
import textflowsms as tf
from datetime import datetime
import pytz

# Central Time Zone Adjustment
central = pytz.timezone('US/Central')

# Function to format phone number
def format_phone_number(phone_number):
    if len(phone_number) == 10 and not phone_number.startswith('+'):
        return '+1' + phone_number
    return phone_number

# Function to hash a password
def hash_password(password):
    return hashlib.sha256(password.encode()).hexdigest()

# Function to save user data to a file
def save_user_data(phone_number, password_hash):
    timestamp = datetime.now(central).strftime('%d%m%y-%H-%M')
    file_name = f"phone-{phone_number}-{timestamp}.txt"
    with open(file_name, 'w') as file:
        file.write(f"{password_hash}\n")
    return file_name

# Function to check if user is authenticated
def is_user_authenticated(phone_number, hash_value):
    for file_name in os.listdir():
        if file_name.startswith(f'phone-{phone_number}') and file_name.endswith('.txt'):
            with open(file_name, 'r') as file:
                stored_hash = file.readline().strip()
                if stored_hash == hash_value:
                    return True
    return False

# Function to log events using markdown
def log_event(message, emoji):
    timestamp = datetime.now(central).strftime('%Y-%m-%d %H:%M:%S')
    st.markdown(f"{emoji} **{timestamp}:** {message}")

# Function to send verification SMS
def send_verification_sms(phone_number, password_hash):
    api_key = os.getenv('API_KEY')
    tf.useKey(api_key)

    base_url = "https://huggingface.co/spaces/awacke1/RT-SMS-Phone-Verify"
    phone = format_phone_number(phone_number)
    hash_message = f"Verify here: {base_url}?phone={phone}&hash={password_hash}"

    result = tf.sendSMS(phone, hash_message)
    if result.ok:
        st.sidebar.success("Verification link sent via SMS 📨")
        log_event("Verification SMS sent", "📨")
    else:
        st.sidebar.error("Failed to send SMS ❌")
        log_event("Failed to send SMS", "❌")

# Sidebar inputs for login
phone_input = st.sidebar.text_input("Phone Number")
password_input = st.sidebar.text_input("Password", type="password")

# Button to handle login
if st.sidebar.button("Login"):
    phone_formatted = format_phone_number(phone_input)
    password_hashed = hash_password(password_input)

    # Check if user is authenticated
    if is_user_authenticated(phone_formatted, password_hashed):
        st.session_state['authenticated'] = True
        st.session_state['phone_number'] = phone_formatted
        st.success("Logged in successfully!")
    else:
        st.error("Invalid phone number or password.")

# URL hash handling
query_params = st.experimental_get_query_params()
if 'phone' in query_params and 'hash' in query_params:
    phone_from_url = format_phone_number(query_params['phone'][0])
    hash_from_url = query_params['hash'][0]

    if is_user_authenticated(phone_from_url, hash_from_url):
        st.session_state['authenticated'] = True
        st.session_state['phone_number'] = phone_from_url
        log_event("User authenticated using URL parameters", "✅")
    else:
        st.error(f"Validation failed. Phone: {phone_from_url}, Hash: {hash_from_url}")
        log_event("Validation failed using URL parameters", "❌")

# Display the main area if authenticated
if st.session_state.get('authenticated', False):
    st.write("## Main Area")
    # Display history for the specific phone number
    st.write("## 📜 Verification History")
    history_files = [f for f in os.listdir() if f.startswith(f'phone-{st.session_state["phone_number"]}')]

    # Create a markdown table for history
    history_markdown = "| Filename | Hash Value |\n| --- | --- |\n"
    for file_name in history_files:
        with open(file_name, 'r') as file:
            history_markdown += f"| {file_name} | {file.read().strip()} |\n"
    st.markdown(history_markdown)

else:
    # If not authenticated, display a message
    st.write("## ❗ Authentication Required")
    st.write("Please login to view your file history.")