import streamlit as st

def main():
    st.title("View Results")

    if not st.session_state.exam_completed:
        st.error("No completed exam results available.")
    else:
        st.write("Displaying results...")

        if st.button("Retake Exam"):
            st.session_state.exam_completed = False
            st.session_state.exam_loaded = True
            st.session_state.page_access["Take Exam"] = True
            st.session_state.page_access["View Results"] = False
            st.success("You can retake the exam.")
        elif st.button("Load Another Exam"):
            st.session_state.exam_loaded = False
            st.session_state.exam_completed = False
            st.session_state.page_access = {"About": True, "Load Exam": True, "Take Exam": False, "View Results": False}
            st.success("Ready to load another exam.")

if __name__ == "__main__":
    main()