Translator / app.py
feliksius's picture
Update app.py
d434148 verified
raw
history blame
3.5 kB
from fastapi import FastAPI, HTTPException
from transformers import pipeline
import langdetect
import logging
import os
import opencc # Untuk konversi Mandarin Tradisional ke Sederhana
os.environ["HF_HOME"] = "/app/cache"
os.environ["TRANSFORMERS_CACHE"] = "/app/cache"
app = FastAPI()
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
MODEL_MAP = {
"id": "Helsinki-NLP/opus-mt-id-en", # Indonesia ke Inggris
"th": "Helsinki-NLP/opus-mt-th-en", # Thailand ke Inggris
"fr": "Helsinki-NLP/opus-mt-fr-en", # Prancis ke Inggris
"es": "Helsinki-NLP/opus-mt-es-en", # Spanyol ke Inggris
"ja": "Helsinki-NLP/opus-mt-ja-en", # Jepang ke Inggris
"zh-CN": "Helsinki-NLP/opus-mt-zh-en", # Mandarin Sederhana ke Inggris
"zh-TW": "Helsinki-NLP/opus-mt-zh-en", # Mandarin Tradisional ke Inggris
"vi": "Helsinki-NLP/opus-mt-vi-en", # Vietnam ke Inggris
}
translators = {}
try:
for lang, model_name in MODEL_MAP.items():
logger.info(f"Loading model for {lang}...")
translators[lang] = pipeline("translation", model=model_name)
logger.info(f"Model for {lang} loaded successfully")
except Exception as e:
logger.error(f"Model initialization failed: {str(e)}")
raise Exception(f"Model initialization failed: {str(e)}")
# Inisialisasi konverter OpenCC untuk Tradisional ke Sederhana
converter = opencc.OpenCC('t2s') # t2s = Traditional to Simplified
def is_traditional_chinese(text: str) -> bool:
"""Cek apakah teks menggunakan karakter Mandarin Tradisional."""
# Contoh sederhana: deteksi beberapa karakter Tradisional
traditional_chars = set('繁體字') # Bisa diperluas dengan daftar karakter yang lebih lengkap
return any(char in traditional_chars for char in text)
def detect_language(text: str) -> str:
"""Deteksi bahasa dari teks menggunakan langdetect."""
try:
lang = langdetect.detect(text)
# Jika terdeteksi sebagai Mandarin (zh), cek apakah Tradisional atau Sederhana
if lang == "zh":
return "zh-TW" if is_traditional_chinese(text) else "zh-CN"
return lang if lang in MODEL_MAP else "en" # Default ke Inggris jika tidak didukung
except Exception as e:
logger.warning(f"Language detection failed: {str(e)}, defaulting to English")
return "en"
@app.post("/translate")
async def translate(text: str):
if not text:
raise HTTPException(status_code=400, detail="Text input is required")
try:
# Deteksi bahasa
source_lang = detect_language(text)
logger.info(f"Detected source language: {source_lang}")
# Jika sudah Inggris, kembalikan teks asli
if source_lang == "en":
return {"translated_text": text}
# Jika Mandarin Tradisional, konversi ke Sederhana
input_text = text
if source_lang == "zh-TW":
input_text = converter.convert(text)
logger.info("Converted Traditional Chinese to Simplified Chinese")
# Terjemahkan ke Inggris
translator = translators.get(source_lang)
if not translator:
raise HTTPException(status_code=400, detail=f"Translation not supported for language: {source_lang}")
result = translator(input_text)
return {"translated_text": result[0]["translation_text"]}
except Exception as e:
logger.error(f"Processing failed: {str(e)}")
raise HTTPException(status_code=500, detail=f"Processing failed: {str(e)}")