Add application file 5

app.py

@@ -1,71 +1,83 @@
 import streamlit as st
-import importlib
+from fpdf import FPDF
 
-# List of available modules with shorter names and icons
-module_names = {
-    "Bases": "presentation_bases",
-    "Validity": "valid_invalid_numbers",
-    "Conversion": "conversion_bases",
-    "Grouping": "grouping_techniques",
-    "Addition": "addition_bases",
-    "2's Complement": "twos_complement",
-    "Negative Numbers": "negative_binary",
-    "Subtraction": "subtraction_bases",
-}
+# Initialize session state to keep track of questions
+if 'questions' not in st.session_state:
+    st.session_state.questions = []
+if 'current_question' not in st.session_state:
+    st.session_state.current_question = 0
+if 'pdf_report' not in st.session_state:
+    st.session_state.pdf_report = None
 
-# Initialize session state for tracking answers and progress
-if 'correct_count' not in st.session_state:
-    st.session_state.correct_count = 0
-if 'question_count' not in st.session_state:
-    st.session_state.question_count = 0
-if 'current_module' not in st.session_state:
-    st.session_state.current_module = None
+# Emojis for correct/incorrect and PDF
+correct_emoji = "✅"
+incorrect_emoji = "❌"
+pdf_emoji = "📄"
 
-# Streamlit interface
-st.sidebar.title("Quiz Modules")
-module_name = st.sidebar.radio("Choose a module:", list(module_names.keys()), index=0)
+# Example questions
+questions = [
+    {
+        "question": "What is the binary equivalent of the decimal number 13?",
+        "options": ["1100", "1101", "1011", "1111", "1001"],
+        "answer": "1101"
+    },
+    {
+        "question": "Which of the following is a valid hexadecimal number?",
+        "options": ["1G4", "FACE", "XYZ", "1.5", "0x23G5"],
+        "answer": "FACE"
+    }
+    # Add more questions here
+]
 
-if module_name:
-    module_file = module_names[module_name]
-    try:
-        module = importlib.import_module(f'modules.{module_file}')
-        generate_question = module.generate_question
-        title = getattr(module, 'title', f"{module_name} Module")
-        description = getattr(module, 'description', "Description is not available")
-        
-        # Show module title and description
-        st.title(title)
-        st.write(description)
+# Function to display a question
+def display_question():
+    current_q = questions[st.session_state.current_question]
+    st.write(f"**Question {st.session_state.current_question + 1}:** {current_q['question']}")
+    user_answer = st.radio("Choose an answer:", current_q['options'])
+
+    if st.button("Submit Answer"):
+        correct_answer = current_q['answer']
+        status = "Correct" if user_answer == correct_answer else "Incorrect"
+        emoji = correct_emoji if status == "Correct" else incorrect_emoji
         
-        # Add spacing to ensure question visibility on Hugging Face
-        st.markdown("<br><br>", unsafe_allow_html=True)
+        st.session_state.questions.append({
+            'question': current_q['question'],
+            'user_answer': user_answer,
+            'correct_answer': correct_answer,
+            'status': status
+        })
 
-        # Generate and display the question
-        question, options, correct_answer, explanation = generate_question()
-        st.write(f"**Question:** {question}")
-        answer = st.radio("Choose an answer:", options)
+        st.markdown(f"**You answered:** {user_answer} {emoji}")
+        if status == "Correct":
+            st.success(f"Correct! {correct_emoji}")
+        else:
+            st.error(f"Incorrect. The correct answer is {correct_answer} {incorrect_emoji}")
 
-        # Track user's response
-        if st.button("Submit"):
-            st.session_state.question_count += 1
-            if answer == correct_answer:
-                st.session_state.correct_count += 1
-                st.success("Correct!", icon="✅")
-            else:
-                st.error("Incorrect.", icon="❌")
-            st.write(f"**Explanation:** {explanation}")
+    if len(st.session_state.questions) > 0 and st.session_state.current_question < len(questions) - 1:
+        if st.button("Next Question"):
+            st.session_state.current_question += 1
+            st.experimental_rerun()
 
-        # Option to go to the next or previous question
-        col1, col2 = st.columns(2)
-        if col1.button("Previous Question"):
-            st.experimental_rerun()  # To simulate going back (if history is managed)
-        if col2.button("Next Question"):
-            st.experimental_rerun()  # To simulate moving forward
+    if len(st.session_state.questions) > 0:
+        if st.button(f"{pdf_emoji} Download PDF Report"):
+            generate_pdf_report(st.session_state.questions)
+            st.download_button(label=f"{pdf_emoji} Download PDF", data=st.session_state.pdf_report, file_name="quiz_report.pdf")
 
-        # Show percentage of correct answers
-        if st.session_state.question_count > 0:
-            correct_percentage = (st.session_state.correct_count / st.session_state.question_count) * 100
-            st.write(f"**Correct Answers:** {st.session_state.correct_count}/{st.session_state.question_count} ({correct_percentage:.2f}%)")
-        
-    except ModuleNotFoundError:
-        st.error(f"The module '{module_name}' was not found. Please select another module.")
+# Function to generate a PDF report
+def generate_pdf_report(questions):
+    pdf = FPDF()
+    pdf.add_page()
+    pdf.set_font("Arial", size=12)
+
+    for i, q in enumerate(questions, 1):
+        pdf.cell(200, 10, txt=f"Question {i}: {q['question']}", ln=True)
+        pdf.cell(200, 10, txt=f"Your Answer: {q['user_answer']}", ln=True)
+        pdf.cell(200, 10, txt=f"Correct Answer: {q['correct_answer']}", ln=True)
+        pdf.cell(200, 10, txt=f"Status: {q['status']}", ln=True)
+        pdf.cell(200, 10, txt="---------------------------------", ln=True)
+
+    st.session_state.pdf_report = pdf.output(dest='S').encode('latin1')
+
+# Main app logic
+st.title("Multiple Choice Quiz")
+display_question()

requirements.txt

@@ -1,2 +1,3 @@
 streamlit
-huggingface_hub
+huggingface_hub
+fpdf