app.py

import streamlit as st
import pandas as pd
import os
from src.SecondModule.module2 import SimilarQuestionGenerator
from src.ThirdModule.module3 import AnswerVerifier
import logging
from typing import Optional, Tuple
#from latex_formatter import LatexFormatter  # LaTeX 포맷터 import
from pylatexenc.latex2text import LatexNodes2Text


logging.basicConfig(level=logging.DEBUG)


# Streamlit 페이지 기본 설정
st.set_page_config(
    page_title="MisconcepTutor", 
    layout="wide", 
    initial_sidebar_state="expanded"
)

@st.cache_resource
def load_answer_verifier():
    """답안 검증 모델 로드"""
    from src.ThirdModule.module3 import AnswerVerifier
    return AnswerVerifier()
    
# 경로 설정
base_path = os.path.dirname(os.path.abspath(__file__))
data_path = os.path.join(base_path, 'Data')
misconception_csv_path = os.path.join(data_path, 'misconception_mapping.csv')

# 로깅 설정
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)

# 세션 상태 초기화 - 가장 먼저 실행되도록 최상단에 배치
if 'initialized' not in st.session_state:
    st.session_state.initialized = True
    st.session_state.wrong_questions = []
    st.session_state.misconceptions = []
    st.session_state.current_question_index = 0
    st.session_state.generated_questions = []
    st.session_state.current_step = 'initial'
    st.session_state.selected_wrong_answer = None
    st.session_state.questions = []
    logger.info("Session state initialized")

# 문제 생성기 초기화
@st.cache_resource
def load_question_generator():
    """문제 생성 모델 로드"""
    if not os.path.exists(misconception_csv_path):
        st.error(f"CSV 파일이 존재하지 않습니다: {misconception_csv_path}")
        raise FileNotFoundError(f"CSV 파일이 존재하지 않습니다: {misconception_csv_path}")
    return SimilarQuestionGenerator(misconception_csv_path=misconception_csv_path)

# CSV 데이터 로드 함수
@st.cache_data
def load_data(data_file = '/train.csv'):
    try:
        file_path = os.path.join(data_path, data_file.lstrip('/'))
        df = pd.read_csv(file_path)
        logger.info(f"Data loaded successfully from {file_path}")
        return df
    except FileNotFoundError:
        st.error(f"파일을 찾을 수 없습니다: {data_file}")
        logger.error(f"File not found: {data_file}")
        return None

def start_quiz():
    """퀴즈 시작 및 초기화"""
    df = load_data()
    if df is None or df.empty:
        st.error("데이터를 불러올 수 없습니다. 데이터셋을 확인해주세요.")
        return

    st.session_state.questions = df.sample(n=10, random_state=42)
    st.session_state.current_step = 'quiz'
    st.session_state.current_question_index = 0
    st.session_state.wrong_questions = []
    st.session_state.misconceptions = []
    st.session_state.generated_questions = []
    logger.info("Quiz started")


def generate_similar_question(wrong_q, misconception_id, generator):
    """유사 문제 생성"""
    logger.info(f"Generating similar question for misconception_id: {misconception_id}")
    
    # 입력 데이터 유효성 검사
    if not isinstance(wrong_q, dict):
        logger.error(f"Invalid wrong_q type: {type(wrong_q)}")
        st.error("유사 문제 생성에 필요한 데이터 형식이 잘못되었습니다.")
        return None
        
    try:
        # misconception_id가 없거나 NaN인 경우 다른 misconception 사용
        if pd.isna(misconception_id):
            logger.info("Original misconception_id is NaN, trying to find alternative")
            # 현재까지 나온 misconception들 중에서 선택
            available_misconceptions = [m for m in st.session_state.misconceptions if not pd.isna(m)]
            
            if available_misconceptions:
                # 가장 최근에 나온 misconception 선택
                misconception_id = available_misconceptions[-1]
                logger.info(f"Using alternative misconception_id: {misconception_id}")
            else:
                # 기본 misconception ID 사용 (예: 가장 기본적인 misconception)
                misconception_id = 2001  # 적절한 기본값으로 수정 필요
                logger.info(f"Using default misconception_id: {misconception_id}")

        # 데이터 준비 (튜플 변환 방지)
        input_data = {
            'construct_name': str(wrong_q.get('ConstructName', '')),
            'subject_name': str(wrong_q.get('SubjectName', '')),
            'question_text': str(wrong_q.get('QuestionText', '')),
            'correct_answer_text': str(wrong_q.get(f'Answer{wrong_q["CorrectAnswer"]}Text', '')),
            'wrong_answer_text': str(wrong_q.get(f'Answer{st.session_state.selected_wrong_answer}Text', '')),
            'misconception_id': int(misconception_id)
        }
        
        logger.info(f"Prepared input data: {input_data}")

        with st.spinner("📝 유사 문제를 생성하고 있습니다..."):
            # 유사 문제 생성 호출
            generated_q, _ = generator.generate_similar_question_with_text(
                construct_name=input_data['construct_name'],
                subject_name=input_data['subject_name'],
                question_text=input_data['question_text'],
                correct_answer_text=input_data['correct_answer_text'],
                wrong_answer_text=input_data['wrong_answer_text'],
                misconception_id=input_data['misconception_id']
            )

        if generated_q:
            verifier = load_answer_verifier()
            with st.status("🤔 AI가 문제를 검토하고 있습니다..."):
                st.write("답안의 정확성을 검증하고 있습니다...")
                verified_answer = verifier.verify_answer(
                    question=generated_q.question,
                    choices=generated_q.choices
                )
                
                if verified_answer:
                    logger.info(f"Answer verified: {verified_answer}")
                    st.write("✅ 검증 완료!")
                    result = {
                        'question': generated_q.question,
                        'choices': generated_q.choices,
                        'correct': verified_answer,
                        'explanation': generated_q.explanation
                    }
                    st.session_state['current_similar_question_answer'] = verified_answer
                    return result
                else:
                    logger.warning("Answer verification failed, using original answer")
                    st.write("⚠️ 검증에 실패했습니다. 원본 답안을 사용합니다.")
                    result = {
                        'question': generated_q.question,
                        'choices': generated_q.choices,
                        'correct': generated_q.correct_answer,
                        'explanation': generated_q.explanation
                    }
                    st.session_state['current_similar_question_answer'] = generated_q.correct_answer
                    return result
                    
    except Exception as e:
        logger.error(f"Error in generate_similar_question: {str(e)}")
        st.error(f"문제 생성 중 오류가 발생했습니다: {str(e)}")
        return None

    return None

def handle_answer(answer, current_q):
    """답변 처리"""
    if answer != current_q['CorrectAnswer']:
        wrong_q_dict = current_q.to_dict()
        st.session_state.wrong_questions.append(wrong_q_dict)
        st.session_state.selected_wrong_answer = answer
        
        misconception_key = f'Misconception{answer}Id'
        misconception_id = current_q.get(misconception_key)
        st.session_state.misconceptions.append(misconception_id)
    
    st.session_state.current_question_index += 1
    if st.session_state.current_question_index >= 10:
        st.session_state.current_step = 'review'

# 전역 LaTeX 포맷터 인스턴스 생성
latex_formatter = LatexFormatter()

def display_math_content(content: str):
    """수학 내용을 화면에 표시"""
    formatted_content = latex_formatter.format_expression(content)
    st.latex(formatted_content)
    st.markdown(formatted_content, unsafe_allow_html=True)

def format_answer_choice(choice: str) -> str:
    """선택지 LaTeX 포맷팅"""
    return latex_formatter.format_expression(choice)

def display_question_and_answers(question_text: str, answers: dict):
    """
    Display the question and its answer choices in a formatted layout.
    Args:
        question_text (str): LaTeX-formatted question text.
        answers (dict): A dictionary of answer choices (keys: 'A', 'B', 'C', 'D').
    """
    # Display the question
    st.write("### 문제")
    st.latex(question_text)

    # Arrange the answers in two columns
    col1, col2 = st.columns(2)
    with col1:
        if st.button(f"A) {answers['A']}", key="A"):
            return 'A'
        if st.button(f"C) {answers['C']}", key="C"):
            return 'C'
    with col2:
        if st.button(f"B) {answers['B']}", key="B"):
            return 'B'
        if st.button(f"D) {answers['D']}", key="D"):
            return 'D'

    return None

def main():
    """메인 애플리케이션 로직"""
    st.title("MisconcepTutor")
    
    # Generator 초기화
    generator = load_question_generator()

    # 초기 화면
    if st.session_state.current_step == 'initial':
        st.write("#### 학습을 시작하겠습니다. 10개의 문제를 풀어볼까요?")
        if st.button("학습 시작", key="start_quiz"):
            start_quiz()
            st.rerun()

    # 퀴즈 화면
    # elif st.session_state.current_step == 'quiz':
    #     current_q = st.session_state.questions.iloc[st.session_state.current_question_index]
        
    #     # 진행 상황 표시
    #     progress = st.session_state.current_question_index / 10
    #     st.progress(progress)
    #     st.write(f"### 문제 {st.session_state.current_question_index + 1}/10")
        
    #     # 문제 표시
    #     st.markdown("---")
    #     #display_math_question(current_q['QuestionText'])
    #     display_math_content(current_q['QuestionText'])  # display_math_question 대신 display_math_content 사용
        
    #     # 보기 표시
    #     col1, col2 = st.columns(2)
    #     with col1:
    #         if st.button(f"A) {latex_formatter.format_expression(current_q['AnswerAText'])}", key="A"):
    #             handle_answer('A', current_q)
    #             st.rerun()
    #         if st.button(f"C) {latex_formatter.format_expression(current_q['AnswerCText'])}", key="C"):
    #             handle_answer('C', current_q)
    #             st.rerun()
    #     with col2:
    #         if st.button(f"B) {latex_formatter.format_expression(current_q['AnswerBText'])}", key="B"):
    #             handle_answer('B', current_q)
    #             st.rerun()
    #         if st.button(f"D) {latex_formatter.format_expression(current_q['AnswerDText'])}", key="D"):
    #             handle_answer('D', current_q)
    #             st.rerun()
    # 퀴즈 화면
    elif st.session_state.current_step == 'quiz':
        current_q = st.session_state.questions.iloc[st.session_state.current_question_index]
    
        # 진행 상황 표시
        progress = st.session_state.current_question_index / 10
        st.progress(progress)
        st.write(f"### 문제 {st.session_state.current_question_index + 1}/10")
        
        # Extract question and answers
        question_text = current_q['QuestionText']  # LaTeX content for the question
        answers = {
            'A': current_q['AnswerAText'],
            'B': current_q['AnswerBText'],
            'C': current_q['AnswerCText'],
            'D': current_q['AnswerDText']
        }
        
        # Display the question and answers
        selected_answer = display_question_and_answers(question_text, answers)
        
        # Handle answer selection
        if selected_answer:
            handle_answer(selected_answer, current_q)
            st.rerun()
    # 복습 화면
    elif st.session_state.current_step == 'review':
        st.write("### 학습 결과")
        
        # 결과 통계
        col1, col2, col3 = st.columns(3)
        col1.metric("총 문제 수", 10)
        col2.metric("맞은 문제", 10 - len(st.session_state.wrong_questions))
        col3.metric("틀린 문제", len(st.session_state.wrong_questions))
        
        # 결과에 따른 메시지 표시
        if len(st.session_state.wrong_questions) == 0:
            st.balloons()  # 축하 효과
            st.success("🎉 축하합니다! 모든 문제를 맞추셨어요!")
            st.markdown("""
            ### 🏆 수학왕이십니다! 
            완벽한 점수를 받으셨네요! 수학적 개념을 정확하게 이해하고 계신 것 같습니다.
            """)
        elif len(st.session_state.wrong_questions) <= 3:
            st.success("잘 하셨어요! 조금만 더 연습하면 완벽할 거예요!")
        else:
            st.info("천천히 개념을 복습해보아요. 연습하다 보면 늘어날 거예요!")
        
        # 네비게이션 버튼
        col1, col2 = st.columns(2)
        with col1:
            if st.button("🔄 새로운 문제 세트 시작하기", use_container_width=True):
                start_quiz()
                st.rerun()
        with col2:
            if st.button("🏠 처음으로 돌아가기", use_container_width=True):
                st.session_state.clear()
                st.rerun()
        
        # 틀린 문제 분석 부분
        if st.session_state.wrong_questions:
            st.write("### ✍️ 틀린 문제 분석")
            tabs = st.tabs([f"📝 틀린 문제 #{i + 1}" for i in range(len(st.session_state.wrong_questions))])
            
            for i, (tab, (wrong_q, misconception_id)) in enumerate(zip(
                tabs,
                zip(st.session_state.wrong_questions, st.session_state.misconceptions)
            )):
                with tab:
                    st.write("**📋 문제:**")
                    st.write(wrong_q['QuestionText'])
                    st.write("**✅ 정답:**", wrong_q['CorrectAnswer'])
                    
                    st.write("---")
                    st.write("**🔍 관련된 Misconception:**")
                    if misconception_id and not pd.isna(misconception_id):
                        misconception_text = generator.get_misconception_text(misconception_id)
                        st.info(f"Misconception ID: {int(misconception_id)}\n\n{misconception_text}")
                    else:
                        st.info("Misconception 정보가 없습니다.")
        
                    if st.button(f"📚 유사 문제 풀기", key=f"retry_{i}"):
                        st.session_state[f"show_similar_question_{i}"] = True
                        st.session_state[f"similar_question_answered_{i}"] = False
                        st.rerun()
                    
                    if st.session_state.get(f"show_similar_question_{i}", False):
                        st.divider()
                        new_question = generate_similar_question(wrong_q, misconception_id, generator)
                        if new_question:
                            st.write("### 🎯 유사 문제")
                            #st.write(new_question['question'])
                            display_math_question(new_question['question'])

                            
                            # 답변 상태 확인
                            answered = st.session_state.get(f"similar_question_answered_{i}", False)
                            
                            # 보기 표시
                            st.write("**보기:**")
                            col1, col2 = st.columns(2)
                            
                            # # 답변하지 않은 경우에만 버튼 활성화
                            # if not answered:
                            #     with col1:
                            #         for option in ['A', 'C']:
                            #             if st.button(
                            #                 f"{option}) {new_question['choices'][option]}", 
                            #                 key=f"similar_{option}_{i}"
                            #             ):
                            #                 st.session_state[f"similar_question_answered_{i}"] = True
                            #                 st.session_state[f"selected_answer_{i}"] = option
                            #                 correct_answer = st.session_state.get('current_similar_question_answer')
                            #                 if option == correct_answer:
                            #                     st.session_state[f"is_correct_{i}"] = True
                            #                 else:
                            #                     st.session_state[f"is_correct_{i}"] = False
                            #                 st.rerun()
                                
                            #     with col2:
                            #         for option in ['B', 'D']:
                            #             if st.button(
                            #                 f"{option}) {new_question['choices'][option]}", 
                            #                 key=f"similar_{option}_{i}"
                            #             ):
                            #                 st.session_state[f"similar_question_answered_{i}"] = True
                            #                 st.session_state[f"selected_answer_{i}"] = option
                            #                 correct_answer = st.session_state.get('current_similar_question_answer')
                            #                 if option == correct_answer:
                            #                     st.session_state[f"is_correct_{i}"] = True
                            #                 else:
                            #                     st.session_state[f"is_correct_{i}"] = False
                            #                 st.rerun()
                            # 답변하지 않은 경우에만 버튼 활성화
                            if not answered:
                                with col1:
                                    for option in ['A', 'C']:
                                        if st.button(
                                            f"{option}) {latex_formatter.format_expression(new_question['choices'][option])}", 
                                            key=f"similar_{option}_{i}"
                                        ):
                                            st.session_state[f"similar_question_answered_{i}"] = True
                                            st.session_state[f"selected_answer_{i}"] = option
                                            correct_answer = st.session_state.get('current_similar_question_answer')
                                            if option == correct_answer:
                                                st.session_state[f"is_correct_{i}"] = True
                                            else:
                                                st.session_state[f"is_correct_{i}"] = False
                                            st.rerun()
                                
                                with col2:
                                    for option in ['B', 'D']:
                                        if st.button(
                                            f"{option}) {format_math_expression(new_question['choices'][option])}", 
                                            key=f"similar_{option}_{i}"
                                        ):
                                            st.session_state[f"similar_question_answered_{i}"] = True
                                            st.session_state[f"selected_answer_{i}"] = option
                                            correct_answer = st.session_state.get('current_similar_question_answer')
                                            if option == correct_answer:
                                                st.session_state[f"is_correct_{i}"] = True
                                            else:
                                                st.session_state[f"is_correct_{i}"] = False
                                            st.rerun()
                            # 답변한 경우 결과 표시
                            if answered:
                                is_correct = st.session_state.get(f"is_correct_{i}", False)
                                correct_answer = st.session_state.get('current_similar_question_answer')
                                if is_correct:
                                    st.success("✅ 정답입니다!")
                                else:
                                    st.error(f"❌ 틀렸습니다. 정답은 {correct_answer}입니다.")
                                
                                # 해설 표시
                                st.write("---")
                                st.write("**📝 해설:**", new_question['explanation'])
                                
                                # 다시 풀기 버튼
                                if st.button("🔄 다시 풀기", key=f"reset_{i}"):
                                    st.session_state[f"similar_question_answered_{i}"] = False
                                    st.session_state[f"selected_answer_{i}"] = None
                                    st.session_state[f"is_correct_{i}"] = None
                                    st.rerun()
                            
                            # 문제 닫기 버튼
                            if st.button("❌ 문제 닫기", key=f"close_{i}"):
                                st.session_state[f"show_similar_question_{i}"] = False
                                st.session_state[f"similar_question_answered_{i}"] = False
                                st.session_state[f"selected_answer_{i}"] = None
                                st.session_state[f"is_correct_{i}"] = None
                                st.rerun()

                            # 화면 아래 여백 추가
                            st.markdown("<br>" * 5, unsafe_allow_html=True)  # 5줄의 빈 줄 추가
                            st.markdown("""
                                <div style="height: 100px;">
                                </div>
                                """, unsafe_allow_html=True)  # 추가 여백
                        else:
                            st.error("유사 문제를 생성할 수 없습니다.")
                            if st.button("❌ 닫기", key=f"close_error_{i}"):
                                st.session_state[f"show_similar_question_{i}"] = False
                                st.rerun()
                                # 화면 아래 여백 추가
                            st.markdown("<br>" * 5, unsafe_allow_html=True)  # 5줄의 빈 줄 추가
                            st.markdown("""
                                <div style="height: 100px;">
                                </div>
                                """, unsafe_allow_html=True)  # 추가 여백
if __name__ == "__main__":
    main()

# random_state 42에서 정답
    # D C A A C
    # A B B B B