import streamlit as st
import pandas as pd
import os
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
import geocoder
from twilio.rest import Client

# ----- Configuration -----

# Replace with your actual credentials or use Streamlit secrets
sender_email = "your-email@gmail.com"
receiver_email = "receiver-email@gmail.com"
sender_password = "your-password"

twilio_sid = "your-twilio-sid"
twilio_token = "your-twilio-token"
twilio_number = "your-twilio-number"

st.set_page_config(page_title="Emergency App", layout="centered")

# ----- Sidebar Navigation -----
st.sidebar.title("Navigation")
app_mode = st.sidebar.selectbox("Choose the app mode", ["User Info", "SOS Alert", "Ambulance Alert", "Send SMS"])

# ----- User Info -----
def user_info_form():
    st.title("🧑 User Information Form")
    name = st.text_input("Name")
    user_id = st.text_input("User ID")
    password = st.text_input("Password", type="password")
    age = st.number_input("Age", min_value=0, max_value=120)
    gender = st.radio("Gender", ["Male", "Female", "Other"])
    phone = st.text_input("Phone Number")
    email = st.text_input("Email")
    blood_group = st.selectbox("Blood Group", ["A+", "A-", "B+", "B-", "AB+", "AB-", "O+", "O-"])
    allergies = st.text_area("Allergies")
    medical_conditions = st.text_area("Medical Conditions")

    if st.button("Submit"):
        user_data = {
            "Name": name,
            "User ID": user_id,
            "Password": password,
            "Age": age,
            "Gender": gender,
            "Phone": phone,
            "Email": email,
            "Blood Group": blood_group,
            "Allergies": allergies,
            "Medical Conditions": medical_conditions
        }
        df = pd.DataFrame([user_data])
        if os.path.exists("user_data.csv"):
            df.to_csv("user_data.csv", mode='a', header=False, index=False)
        else:
            df.to_csv("user_data.csv", index=False)
        st.success("✅ User information saved successfully!")

# ----- SOS Email Alert -----
def send_sos_alert():
    st.title("🚨 SOS Email Alert")
    message = "Emergency! Please respond."

    if st.button("Send SOS Email"):
        try:
            msg = MIMEMultipart()
            msg['Subject'] = 'SOS Alert'
            msg['From'] = sender_email
            msg['To'] = receiver_email
            msg.attach(MIMEText(message, 'plain'))

            with smtplib.SMTP('smtp.gmail.com', 587) as server:
                server.starttls()
                server.login(sender_email, sender_password)
                server.send_message(msg)

            st.success("📧 SOS alert sent successfully via email!")
        except Exception as e:
            st.error(f"❌ Failed to send SOS alert: {e}")

# ----- Location Fetching -----
def get_location():
    g = geocoder.ip('me')
    return g.latlng if g.ok else None

# ----- Ambulance Alert -----
def send_alert_to_hospital(location):
    message = f"Emergency! Send an ambulance to location: {location}"
    st.success(f"🏥 Alert sent to hospital: {message}")
    return message

def auto_ambulance_alert():
    st.title("🚑 Ambulance Dispatch Alert")
    if st.button("Send Ambulance Alert"):
        location = get_location()
        if location:
            send_alert_to_hospital(location)
        else:
            st.error("❌ Could not determine location.")

# ----- SMS Alert via Twilio -----
def send_sms():
    st.title("📲 Send SMS Alert")
    to_number = st.text_input("Enter emergency contact number (with country code):")
    message_body = "Emergency! Please respond."

    if st.button("Send SMS"):
        try:
            client = Client(twilio_sid, twilio_token)
            message_body= client.messages.create(
                body=message_body,
                from_=twilio_number,
                to=to_number
            )
            st.success("📩 SMS sent successfully!")
        except Exception as e:
            st.error(f"❌ Failed to send SMS: {e}")

# ----- Main Logic -----
if app_mode == "User Info":
    user_info_form()
elif app_mode == "SOS Alert":
    send_sos_alert()
elif app_mode == "Ambulance Alert":
    auto_ambulance_alert()
elif app_mode == "Send SMS":
    send_sms()