app.py

import streamlit as st

def calculate_bmi(weight, height):
    # Calculate BMI
    bmi = weight / (height ** 2)
    
    return bmi

def is_number(text):
    try:
        # Try to convert the text to a float
        float(text)
        return True
    except ValueError:
        # If conversion fails, it's not a number
        return False



if "question_no" not in st.session_state:
    st.session_state.question_no = 1

st.title(f"{st.session_state.question_no}Know your diabetic status")
if st.session_state.question_no == 1:
    name = st.text_input(f"{st.session_state.question_no}What is your name?", key=st.session_state.question_no,placeholder="Type your answer here")

    if st.button("Next->"):
        if name:
            st.session_state.name = name
        else:
            st.session_state.name = "Anonymous user"
        st.session_state.question_no += 1

elif st.session_state.question_no == 2:
    age = st.number_input(f"{st.session_state.question_no}How old are you?", key=st.session_state.question_no, placeholder="Type your answer")
    if st.button("Next->"):
        if not is_number(age):
            st.warning("Please enter a valid age")
        else:
            st.session_state.age = int(age)
            st.session_state.question_no += 1

elif st.session_state.question_no == 3:
    gender = st.selectbox(f"{st.session_state.question_no}What is your gender?", ["Male", "Female", "Other"], key=st.session_state.question_no)
    if st.button("Next->"):
        st.session_state.gender = gender
        if gender == "Male":
            st.session_state.pregnancies = 0
            st.session_state.question_no += 2
        else:
            st.session_state.question_no += 1

elif st.session_state.question_no == 4:
    pregnancies = st.number_input(f"{st.session_state.question_no}How many times have you been pregnant?", key=st.session_state.question_no)
    if st.button("Next->"):
        st.session_state.pregnancies = int(pregnancies)
        st.session_state.question_no += 1

elif st.session_state.question_no == 5:
    glucose = st.number_input(f"{st.session_state.question_no}Enter your glucose level", key=st.session_state.question_no)
    if st.button("Next->"):
        st.session_state.glucose = int(glucose)
        st.session_state.question_no += 1