app.py

from flask import Flask, render_template, request, redirect, url_for, send_file
from gtts import gTTS
import os

# ここに翻訳データを格納しておく
from translation_data import translation_dict_A, translation_dict_B, translation_dict_C, translation_dict_D, translation_dict_F, translation_dict_G

app = Flask(__name__)

# 音声ファイルを保存するディレクトリ
AUDIO_DIR = 'static/audio'

# 英語の文章を取り出す
english_sentences_A = list(translation_dict_A.keys())
english_sentences_B = list(translation_dict_B.keys())
english_sentences_C = list(translation_dict_C.keys())
english_sentences_D = list(translation_dict_D.keys())
english_sentences_F = list(translation_dict_F.keys())
english_sentences_G = list(translation_dict_G.keys())

# 音声ファイルを生成する関数
def generate_audio(text, lang='en', filename=None):
    if filename is None:
        filename = f"{AUDIO_DIR}/{text[:10].replace(' ', '_')}.mp3"
    
    if not os.path.exists(filename):  # ファイルが存在しない場合のみ生成
        tts = gTTS(text=text, lang=lang)
        tts.save(filename)
    return filename

# サーバー起動時にすべての英語音声ファイルを生成
def generate_all_audio_files():
    os.makedirs(AUDIO_DIR, exist_ok=True)
    
    # 各セットに対して音声ファイルを生成
    for sentence in english_sentences_A + english_sentences_B + english_sentences_C + english_sentences_D + english_sentences_F + english_sentences_G:
        generate_audio(sentence, 'en')

# Flaskアプリ起動時に音声ファイルを生成
with app.app_context():
    generate_all_audio_files()

@app.route('/')
def portal():
    return render_template('portal.html')

@app.route('/flashcards')
def index():
    set_name = request.args.get('set', 'A')
    index = int(request.args.get('index', 0))
    if set_name == 'A':
        english = english_sentences_A[index]
        japanese = translation_dict_A[english]
        total = len(english_sentences_A)
    elif set_name == 'B':
        english = english_sentences_B[index]
        japanese = translation_dict_B[english]
        total = len(english_sentences_B)
    elif set_name == 'C':
        english = english_sentences_C[index]
        japanese = translation_dict_C[english]
        total = len(english_sentences_C)
    elif set_name == 'D':
        english = english_sentences_D[index]
        japanese = translation_dict_D[english]
        total = len(english_sentences_D)
    elif set_name == 'F':
        english = english_sentences_F[index]
        japanese = translation_dict_F[english]
        total = len(english_sentences_F)
    elif set_name == 'G':
        english = english_sentences_G[index]
        japanese = translation_dict_G[english]
        total = len(english_sentences_G)

    audio_url = url_for('static', filename=f"audio/{english[:10].replace(' ', '_')}.mp3")
    return render_template('index.html', set_name=set_name, index=index, english=english, japanese=japanese, total=total, audio_url=audio_url)

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