app.py

import gradio as gr
from transformers import pipeline, AutoTokenizer, AutoModel
import torch
import warnings
warnings.filterwarnings('ignore')

device = "cuda" if torch.cuda.is_available() else "cpu"

try:
    models = {
        'transcription': pipeline("automatic-speech-recognition", 
                                model="openai/whisper-small", 
                                device=device),
        'translation': pipeline("translation", 
                              model="facebook/mbart-large-50-many-to-many-mmt",
                              device=device),
        'summarization': pipeline("summarization", 
                                model="facebook/bart-large-cnn", 
                                device=device),
        'sentiment': pipeline("sentiment-analysis", 
                            model="nlptown/bert-base-multilingual-uncased-sentiment", 
                            device=device),
        'question_answering': pipeline("question-answering", 
                                     model="deepset/roberta-base-squad2", 
                                     device=device),
        'chat': pipeline("text-generation", 
                        model="facebook/opt-125m", 
                        device=device)
    }
    
except Exception as e:
    print(f"Erro ao carregar modelos: {str(e)}")

def safe_process(func):
    def wrapper(*args, **kwargs):
        try:
            return func(*args, **kwargs)
        except Exception as e:
            return f"Erro ao processar: {str(e)}"
    return wrapper

@safe_process
def transcribe(audio):
    if not audio:
        return "Por favor, forneça um arquivo de áudio."
    return models['transcription'](audio)["text"]

@safe_process
def translate(text, direction):
    if not text:
        return "Por favor, insira um texto para tradução."
    
    if direction == "pt_en":
        result = models['translation'](text, src_lang="pt", tgt_lang="en")[0]
    else:
        result = models['translation'](text, src_lang="en", tgt_lang="pt")[0]
    
    return result['translation_text']

@safe_process
def summarize(text):
    if not text:
        return "Por favor, insira um texto para resumir."
    return models['summarization'](text, max_length=130, min_length=30)[0]['summary_text']

@safe_process
def analyze_sentiment(text):
    if not text:
        return "Por favor, insira um texto para análise."
    return models['sentiment'](text)[0]['label']

@safe_process
def answer_question(question, context):
    if not question or not context:
        return "Por favor, forneça tanto a pergunta quanto o contexto."
    return models['question_answering'](question=question, context=context)['answer']

@safe_process
def chat_response(message, history):
    if not message:
        return [], history
    response = models['chat'](message, max_length=100, do_sample=True, temperature=0.7)
    history.append((message, response[0]['generated_text']))
    return "", history

with gr.Blocks(theme=gr.themes.Soft()) as demo:
    with gr.Tab("Início"):
        gr.HTML(open("index.html").read())
    
    with gr.Tab("Transcrição de Áudio"):
        audio_input = gr.Audio(type="filepath", label="Upload de Áudio")
        transcribe_button = gr.Button("Transcrever")
        transcription_output = gr.Textbox(label="Transcrição", lines=3)
        transcribe_button.click(transcribe, inputs=audio_input, outputs=transcription_output)
    
    with gr.Tab("Tradução"):
        with gr.Row():
            translation_direction = gr.Radio(
                ["en_pt", "pt_en"], 
                label="Direção da Tradução",
                value="en_pt"
            )
        text_to_translate = gr.Textbox(label="Texto para Traduzir", lines=3)
        translate_button = gr.Button("Traduzir")
        translation_output = gr.Textbox(label="Tradução", lines=3)
        translate_button.click(
            translate, 
            inputs=[text_to_translate, translation_direction], 
            outputs=translation_output
        )
    
    with gr.Tab("Resumo"):
        text_to_summarize = gr.Textbox(label="Texto para Resumir", lines=5)
        summarize_button = gr.Button("Resumir")
        summary_output = gr.Textbox(label="Resumo", lines=3)
        summarize_button.click(summarize, inputs=text_to_summarize, outputs=summary_output)
    
    with gr.Tab("Análise de Sentimento"):
        sentiment_text = gr.Textbox(label="Texto para Análise", lines=3)
        sentiment_button = gr.Button("Analisar")
        sentiment_output = gr.Textbox(label="Sentimento")
        sentiment_button.click(analyze_sentiment, inputs=sentiment_text, outputs=sentiment_output)
    
    with gr.Tab("Perguntas e Respostas"):
        question_input = gr.Textbox(label="Pergunta")
        context_input = gr.Textbox(label="Contexto", lines=5)
        qa_button = gr.Button("Responder")
        qa_output = gr.Textbox(label="Resposta", lines=2)
        qa_button.click(
            answer_question, 
            inputs=[question_input, context_input], 
            outputs=qa_output
        )
    
    with gr.Tab("Chat"):
        chatbot = gr.Chatbot()
        msg = gr.Textbox(label="Mensagem")
        clear = gr.Button("Limpar")
        
        msg.submit(chat_response, inputs=[msg, chatbot], outputs=[msg, chatbot])
        clear.click(lambda: None, None, chatbot, queue=False)

if __name__ == "__main__":
    demo.launch(share=True)