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import streamlit as st
import random
import json
import os
from datetime import datetime
import hashlib
from dotenv import load_dotenv
# Load environment variables
load_dotenv()
# Configuration
HISTORY_FILE = "selection_history.json"
# Team members
team_members = [
"Akhil", "Sarthak", "Sai Charitha", "Prasad K", "Anand S", "Harsh Naik",
"Divya Singh", "Ritesh Kumar Tiwary", "Balamurali Ommi", "Lalit Singh",
"Bhavana K", "Bickramjit Basu", "C R Tejavardhan", "Ashok M", "Harshitha T",
"Man Mohan Nayak", "Prasad Dattatray Amale", "Praveena Bharathi",
"Ranga Bhashyams", "Sahil Singh Diwan", "Sathwika", "Sayali Vinod",
"Yashwanth Gundala", "Gopinath", "Arun Kumar Tiwary"
]
# Initialize history file
def initialize_history_file():
if not os.path.exists(HISTORY_FILE):
with open(HISTORY_FILE, 'w') as f:
json.dump([], f)
# Hash password
def hash_password(password):
return hashlib.sha256(password.encode()).hexdigest()
# Authenticate user
def authenticate(username, password):
stored_username = os.getenv("APP_USERNAME")
stored_password_hash = os.getenv("APP_PASSWORD_HASH")
return username == stored_username and hash_password(password) == stored_password_hash
# Team member selection
def select_members(members, last_selected, num_to_select=2):
available_members = [member for member in members if member not in last_selected]
if len(available_members) < num_to_select:
raise ValueError("Not enough members to select from without repeating the last pair.")
selected_members = random.sample(available_members, num_to_select)
last_selected.clear()
last_selected.extend(selected_members)
return selected_members
# Save history
def save_history(selection):
with open(HISTORY_FILE, 'r+') as f:
history = json.load(f)
history.append(selection)
f.seek(0)
json.dump(history, f)
f.truncate()
# Clear history
def clear_history():
with open(HISTORY_FILE, 'w') as f:
json.dump([], f)
st.success("History cleared.")
# Streamlit UI
def main():
st.title("AI Learning Presentation - Team Member Selection")
initialize_history_file()
if 'authenticated' not in st.session_state:
st.session_state.authenticated = False
if not st.session_state.authenticated:
username = st.text_input("Username")
password = st.text_input("Password", type="password")
if st.button("Login"):
if authenticate(username, password):
st.session_state.authenticated = True
st.success("Logged in successfully!")
else:
st.error("Invalid username or password")
else:
st.write("Select random team members for the next session.")
num_selections = st.slider("Number of times to run the selection", 1, 10, 3)
if st.button("Run Selection"):
last_selected = []
for i in range(num_selections):
try:
selected_members = select_members(team_members, last_selected)
timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
st.write(f"Run: {i + 1}, Time: {timestamp} \n Selected members: {', '.join(selected_members)}")
save_history({"run": i + 1, "timestamp": timestamp, "members": selected_members})
except ValueError as e:
st.error(str(e))
if st.button("View History"):
with open(HISTORY_FILE, 'r') as f:
history = json.load(f)
st.write("Selection History:")
for entry in history:
timestamp = entry.get('timestamp', 'No timestamp available')
st.write(f"Run {entry['run']}, Time: {timestamp}, Selected members: {', '.join(entry['members'])}")
if st.button("Clear History"):
clear_history()
if st.button("Logout"):
st.session_state.authenticated = False
if __name__ == "__main__":
main()
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