app.py

import streamlit as st
import time
from streamlit_lottie import st_lottie
import requests

# Function to load Lottie animations
def load_lottie_url(url):
    response = requests.get(url)
    if response.status_code != 200:
        return None
    return response.json()

# Load Lottie animations
lottie_digestive_system = load_lottie_url("https://assets9.lottiefiles.com/packages/lf20_4xm9m9ic.json")
lottie_quiz_complete = load_lottie_url("https://assets8.lottiefiles.com/packages/lf20_s2lryxtd.json")

# Page Configurations
st.set_page_config(
    page_title="CBT: Digestive System for Class 6",
    layout="centered"
)

# Title and Description
st.title("🌟 CBT: Digestive System 🌟")
st.write("This Computer-Based Tutorial (CBT) is designed for Class 6 students to learn about the digestive system in a fun and interactive way.")
st.image("https://upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Digestive_system_diagram_en.svg/1200px-Digestive_system_diagram_en.svg.png", caption="Digestive System Overview")

# Sidebar Navigation
st.sidebar.header("Navigation")
sections = ["Introduction", "Organs of the Digestive System", "Process of Digestion", "Quiz"]
selected_section = st.sidebar.radio("Select Section:", sections)

if selected_section == "Introduction":
    st.header("Introduction")
    st.write("The digestive system is a group of organs that work together to break down food into smaller parts so the body can use them for energy, growth, and repair.")
    st_lottie(lottie_digestive_system, height=300, key="intro_animation")
    
    # Relevant Digestive Process GIF from Giphy
    st.image("https://media.giphy.com/media/jTqboGlCkiQ7e/giphy.gif", caption="Digestive Process (GIF)")  # Updated relevant GIF
    st.balloons()

elif selected_section == "Organs of the Digestive System":
    st.header("Organs of the Digestive System")
    st.write("The digestive system includes the following major organs:")
    st.markdown("""
    - **Mouth**: The starting point of digestion where food is chewed and mixed with saliva.
    - **Esophagus**: A tube that connects the mouth to the stomach.
    - **Stomach**: Breaks down food using acids and enzymes.
    - **Small Intestine**: Absorbs nutrients from food.
    - **Large Intestine**: Absorbs water and forms waste products.
    - **Liver**: Produces bile to help digest fats.
    - **Pancreas**: Produces enzymes that help in digestion.
    - **Rectum and Anus**: Store and eliminate waste.
    """)
    st.image("https://cdn.pixabay.com/photo/2017/07/25/13/01/intestine-2531936_960_720.png", caption="Illustration of Digestive Organs")
    
    # Embedding a video related to digestive organs
    st.video("https://www.youtube.com/watch?v=1H2V9X4TcK0", caption="Digestive System Organs Video")

elif selected_section == "Process of Digestion":
    st.header("Process of Digestion")
    st.write("The process of digestion involves several steps:")
    st.markdown("""
    1. **Ingestion**: Food enters the mouth.
    2. **Propulsion**: Food moves through the esophagus to the stomach.
    3. **Mechanical Digestion**: Food is physically broken down into smaller pieces.
    4. **Chemical Digestion**: Enzymes break down food into simpler molecules.
    5. **Absorption**: Nutrients are absorbed into the bloodstream in the small intestine.
    6. **Elimination**: Waste is eliminated through the rectum and anus.
    """)
    st.image("https://cdn.pixabay.com/photo/2017/07/25/13/01/digestive-2531937_960_720.png", caption="Step-by-step Digestive Process")
    
    # Adding a relevant Digestive Process GIF
    st.image("https://media.giphy.com/media/jTqboGlCkiQ7e/giphy.gif", caption="Digestion in Action (GIF)")  # Relevant GIF for digestion
    
    with st.spinner("Simulating digestion..."):
        time.sleep(2)
    st.success("Digestion process explained!")

elif selected_section == "Quiz":
    st.header("🧠 Quiz: Test Your Knowledge")
    st.write("Answer the following questions to test your knowledge of the digestive system.")

    # Question 1
    question1 = st.radio(
        "1. Which organ is responsible for absorbing nutrients from food?",
        ("Mouth", "Stomach", "Small Intestine", "Large Intestine")
    )
    if question1 == "Small Intestine":
        st.success("✅ Correct! The small intestine absorbs nutrients from food.")
    elif question1:
        st.error("❌ Incorrect. The correct answer is 'Small Intestine'.")

    # Question 2
    question2 = st.radio(
        "2. What is the function of bile?",
        ("To digest proteins", "To help digest fats", "To break down carbohydrates", "To eliminate waste")
    )
    if question2 == "To help digest fats":
        st.success("✅ Correct! Bile helps in the digestion of fats.")
    elif question2:
        st.error("❌ Incorrect. The correct answer is 'To help digest fats'.")

    # Question 3
    question3 = st.radio(
        "3. Which organ produces enzymes for digestion?",
        ("Liver", "Stomach", "Pancreas", "Esophagus")
    )
    if question3 == "Pancreas":
        st.success("✅ Correct! The pancreas produces enzymes that aid in digestion.")
    elif question3:
        st.error("❌ Incorrect. The correct answer is 'Pancreas'.")

    st.write("🎉 Keep learning and practicing! Great job!")
    st_lottie(lottie_quiz_complete, height=300, key="quiz_animation")
    
    # Embedding another video for quiz results
    st.video("https://www.youtube.com/watch?v=2DlwJlXjqZ8", caption="Quiz Completion Video")