from flask import Flask, render_template, request, redirect, url_for, session
import random

app = Flask(__name__)
app.secret_key = 'your_secret_key_here'  # セッションの安全な署名に必要なキー

questions = {
    "What is the capital of France?": "Paris",
    "What is the largest ocean?": "Pacific",
    "Which planet is known as the Red Planet?": "Mars",
    "What is the chemical symbol for water?": "H2O",
}

def get_random_question():
    question = random.choice(list(questions.keys()))
    return question, questions[question]

@app.route('/', methods=['GET', 'POST'])
def quiz():
    if 'current_question' not in session:  # セッションに現在の問題がない場合は新しいものを取得
        session['current_question'], session['current_answer'] = get_random_question()
    
    result = None

    if request.method == 'POST':
        user_input = request.form['user_input']
        if user_input == session['current_answer']:
            result = '正解です！'
        else:
            result = '不正解です。正解は{}です。'.format(session['current_answer'])
    
    return render_template('quiz.html', question=session['current_question'], result=result)

@app.route('/next', methods=['POST'])
def next_question():
    session.pop('current_question')  # 現在の問題をセッションから削除
    session.pop('current_answer')
    return redirect(url_for('quiz'))

if __name__ == '__main__':
    app.run(debug=True, port=7860, host="0.0.0.0")