app.py

import streamlit as st
import pandas as pd
import plotly.figure_factory as ff
import random
from datetime import datetime, timedelta

def generate_random_color():
    r = random.randint(0, 255)
    g = random.randint(0, 255)
    b = random.randint(0, 255)
    return f'rgb({r}, {g}, {b})'

st.set_page_config(layout="wide")
st.title("Project Schedule/Gantt Chart Generator")

project_name = st.text_input("Project Name:")
start_date = st.date_input("Project Start Date:", value=datetime.today())
end_date = st.date_input("Project End Date:", value=datetime.today() + timedelta(days=30))

num_activities = st.number_input("Number of Activities (Minimum 1):", min_value=1, value=5)

activities = []
for i in range(num_activities):
    col1, col2 = st.columns(2)
    with col1:
        activity_name = st.text_input(f"Activity {i+1} Name:", key=f"name_{i}")
    with col2:
        activity_duration = st.number_input(f"Activity {i+1} Duration (days):", min_value=1, key=f"duration_{i}")
    activities.append({"Task": activity_name, "Duration": activity_duration})

if st.button("Create Gantt Chart"):
    if not project_name:
        st.error("Please enter a project name.")
    elif any(not activity["Task"] for activity in activities):
        st.error("Please enter names for all activities.")
    # Corrected line