import streamlit as st
import pandas as pd

# Placeholder data structures (replace with actual data sources)
if 'drivers' not in st.session_state:  # Initialize if not already in session state
    st.session_state.drivers = pd.DataFrame(columns=["driver_id", "name", "location", "status"])
if 'orders' not in st.session_state:
    st.session_state.orders = pd.DataFrame(columns=["order_id", "pickup_location", "dropoff_location", "status"])
if 'zone_pressure' not in st.session_state:
    st.session_state.zone_pressure = pd.DataFrame(columns=['zone_id', 'pressure_level'])
if 'analytics' not in st.session_state:
    st.session_state.analytics = pd.DataFrame(columns=['performance_indicators', 'drivers_trips', 'delivery_times', 'delivery_delay', 'customer_satisfaction'])

# Basic UI structure
st.title("Dispatch Call Scheduler")

# Sidebar for navigation and actions
with st.sidebar:
    st.header("Navigation")
    selected_page = st.radio("Go to", ["Order Management", "Driver Management", "Zone Pressure", "Analytics"])

    st.header("Actions")
    if st.button("Schedule Dispatch"):
        # Logic to schedule a dispatch based on current data
        st.write("Dispatch scheduled!")

# Order Management page
if selected_page == "Order Management":
    st.subheader("Order Management")

    # Add new order
    with st.form("add_order_form"):
        st.write("Add New Order")
        order_id = st.text_input("Order ID")
        pickup_location = st.text_input("Pickup Location")
        dropoff_location = st.text_input("Dropoff Location")
        status = st.selectbox("Status", ["Pending", "In Progress", "Completed"])
        submitted = st.form_submit_button("Add Order")
        if submitted:
            new_order = pd.DataFrame({"order_id": [order_id], "pickup_location": [pickup_location], 
                                      "dropoff_location": [dropoff_location], "status": [status]})
            st.session_state.orders = pd.concat([st.session_state.orders, new_order], ignore_index=True)

    # Display order list
    st.write(st.session_state.orders)

# Driver Management page
elif selected_page == "Driver Management":
    st.subheader("Driver Management")

    # Add new driver
    with st.form("add_driver_form"):
        st.write("Add New Driver")
        driver_id = st.text_input("Driver ID")
        name = st.text_input("Name")
        location = st.text_input("Location")
        status = st.selectbox("Status", ["Available", "On Duty", "Offline"])
        submitted = st.form_submit_button("Add Driver")
        if submitted:
            new_driver = pd.DataFrame({"driver_id": [driver_id], "name": [name], 
                                       "location": [location], "status": [status]})
            st.session_state.drivers = pd.concat([st.session_state.drivers, new_driver], ignore_index=True)

    # Display driver list
    st.write(st.session_state.drivers)

# Zone Pressure page
elif selected_page == "Zone Pressure":
    st.subheader("Dynamic Zone Pressure Monitoring")

    # Add new zone pressure data
    with st.form("add_zone_pressure_form"):
        st.write("Add Zone Pressure Data")
        zone_id = st.text_input("Zone ID")
        pressure_level = st.number_input("Pressure Level", min_value=0, max_value=10, value=0)
        submitted = st.form_submit_button("Add Zone Data")
        if submitted:
            new_zone_data = pd.DataFrame({"zone_id": [zone_id], "pressure_level": [pressure_level]})
            st.session_state.zone_pressure = pd.concat([st.session_state.zone_pressure, new_zone_data], ignore_index=True)

    # Display zone pressure data
    st.write(st.session_state.zone_pressure)

# Analytics Dashboard page
elif selected_page == "Analytics":
    st.subheader("Analytics Dashboard")

    # Add analytics information (consider using a more structured input method)
    with st.form("add_analytics_form"):
        st.write("Add Analytics Information")
        performance_indicators = st.text_input("Performance Indicators")
        drivers_trips = st.text_input("Drivers Trips")
        delivery_times = st.text_input("Delivery Times")
        delivery_delay = st.text_input("Delivery Delay")
        customer_satisfaction = st.text_input("Customer Satisfaction")
        submitted = st.form_submit_button("Add Analytics Data")
        if submitted:
            new_analytics_data = pd.DataFrame({"performance_indicators": [performance_indicators], 
                                               "drivers_trips": [drivers_trips], 
                                               "delivery_times": [delivery_times],
                                               "delivery_delay": [delivery_delay],
                                               "customer_satisfaction": [customer_satisfaction]})
            st.session_state.analytics = pd.concat([st.session_state.analytics, new_analytics_data], ignore_index=True)

    # Display analytics information
    st.write(st.session_state.analytics)