Update app.py
Browse files
app.py
CHANGED
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import os
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import secrets
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import html
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import asyncio
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import logging
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from dataclasses import dataclass
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from typing import Any, Optional, Tuple
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import gradio as gr
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from transformers import pipeline
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from pydantic import BaseModel
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# ----------------- Configuration & Models -----------------
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@dataclass
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class Config:
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# ----------------- Enhanced Logger -----------------
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logger = setup_logger()
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self.pipeline = None
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self.model_loaded = False
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async def initialize(self):
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if not self.config.HF_TOKEN:
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logger.error(
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return
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try:
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logger.info(f"A carregar o modelo: {self.config.MODEL_NAME}...")
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def load_pipeline():
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#
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return pipeline(
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model=self.config.MODEL_NAME,
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device_map="auto",
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model_kwargs={"torch_dtype": "auto"},
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use_auth_token=self.config.HF_TOKEN,
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)
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self.model_loaded = True
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logger.info("✅ Modelo carregado com sucesso!")
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except Exception as e:
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logger.error(f"❌ Erro ao carregar o modelo: {e}")
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self.model_loaded = False
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async def generate(self, request: GenerationRequest) -> Tuple[bool, str, int]:
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if not self.model_loaded or self.pipeline is None:
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return
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try:
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def do_generation():
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#
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outputs = self.pipeline(
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prompt_text,
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top_p=request.top_p,
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)
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# A saída típica é uma lista com dicionários contendo 'generated_text'
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generated_text = outputs[0].get("generated_text", "")
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# Contagem aproximada de tokens (usa o tokenizer do pipeline se disponível)
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tokens_used = 0
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tokens_used =
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else:
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tokens_used = len(generated_text.split())
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except Exception:
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tokens_used = len(generated_text.split())
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return generated_text, tokens_used
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return True, generated_text, tokens_used
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except Exception as e:
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logger.error(f"Erro na geração: {e}")
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return False, f"❌ A geração falhou: {str(e)}", 0
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@@ -141,16 +174,17 @@ class GemmaService:
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async def generate_text(self, api_key: str, prompt: str, **kwargs) -> APIResponse:
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if not api_key or not api_key.startswith("gsk-"):
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return APIResponse(success=False, error="Chave de API inválida ou ausente.")
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-
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try:
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request = GenerationRequest(prompt=prompt, **kwargs)
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success, text, tokens_used = await self.model_manager.generate(request)
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if success:
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return APIResponse(
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else:
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return APIResponse(success=False, error=text)
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except Exception as e:
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logger.error(f"Erro de serviço durante a geração de texto: {e}")
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return APIResponse(success=False, error="Ocorreu um erro interno no serviço.")
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def __init__(self, service: GemmaService):
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self.service = service
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def create_custom_css(self):
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return """
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:root {
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--dark-bg: #0a0a0a; --panel-bg: #1a1a1a; --border-color: #333;
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.gr-slider { color: var(--text-light); }
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"""
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def create_interface(self):
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with gr.Blocks(css=self.create_custom_css(), theme=None) as app:
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with gr.Row(elem_id="main_layout", equal_height=False):
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with gr.Column(scale=2):
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with gr.Column(elem_id="left_panel"):
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output_display = gr.Markdown(
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with gr.Column(elem_id="input_area"):
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api_key_input = gr.Textbox(
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with gr.Row():
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prompt_input = gr.Textbox(
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send_button = gr.Button("➤ Enviar", elem_id="send_button", scale=2)
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with gr.Column(scale=1):
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key_button = gr.Button("✨ Gerar Nova Chave", elem_id="generate_button")
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with gr.Accordion("Parâmetros Avançados", open=False):
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temp_slider = gr.Slider(
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gr.Markdown("### Como Usar a API")
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api_example_display = gr.HTML(
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def handle_key_generation():
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key = f"gsk-{secrets.token_urlsafe(24).replace('_', '').replace('-', '')}"
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code_html = f"""
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<div class
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<div><span class
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<div> </div>
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<div>url = <span class
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<div>payload = {{</div>
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<div> <span class
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<div> <span class
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<div> <span class
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<div>}}</div>
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<div> </div>
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<div>response = requests.post(url, json=payload)</div>
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<div><span class
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</div>
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"""
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return gr.Textbox.update(value=key, interactive=True), api_example_display.update(value=code_html)
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async def handle_generation(api_key, prompt, temp, max_tokens, top_k, top_p, btn):
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if not api_key:
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yield
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return
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if not prompt:
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yield
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return
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# chama o serviço de geração
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response = await self.service.generate_text(
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api_key=api_key,
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prompt=prompt,
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temperature=
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max_tokens=int(max_tokens),
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top_k=int(top_k),
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top_p=
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)
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if response.success:
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formatted_text = html.escape(response.data["generated_text"]).replace("\n", "<br>")
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yield formatted_text, gr.
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else:
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yield f"<p style='color: #FF4500;'>{response.error}</p>", gr.
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send_button.click(
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handle_generation,
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inputs=[api_key_input, prompt_input, temp_slider, max_tokens_slider, top_k_slider, top_p_slider, send_button],
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key_button.click(handle_key_generation, outputs=[api_key_input, api_example_display])
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return app
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# ----------------- Main Application -----------------
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def main():
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try:
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service = GemmaService()
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asyncio.run(service.initialize())
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interface = GradioInterface(service)
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app = interface.create_interface()
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#
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app.launch(server_name="0.0.0.0", server_port=7860, share=False, debug=False
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except Exception as e:
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logger.critical(f"Falha ao iniciar a aplicação: {e}", exc_info=True)
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if __name__ == "__main__":
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main()
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import os
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import secrets
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import logging
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import asyncio
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import html
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from dataclasses import dataclass
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from datetime import datetime
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from typing import Any, Optional, Tuple
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import gradio as gr
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from transformers import pipeline
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from dotenv import load_dotenv
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from pydantic import BaseModel
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# ----------------- Configuration & Models -----------------
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load_dotenv()
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@dataclass
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class Config:
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# ----------------- Enhanced Logger -----------------
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def setup_logger() -> logging.Logger:
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cfg = Config()
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log_level = getattr(logging, cfg.LOG_LEVEL.upper(), logging.INFO)
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# Avoid adding duplicate handlers if called multiple times
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logger = logging.getLogger("gemma_saas")
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if not logger.handlers:
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logger.setLevel(log_level)
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formatter = logging.Formatter(
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"%(asctime)s - %(name)s - %(levelname)s - %(message)s"
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)
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file_handler = logging.FileHandler("gemma_saas.log")
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file_handler.setFormatter(formatter)
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stream_handler = logging.StreamHandler()
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stream_handler.setFormatter(formatter)
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logger.addHandler(file_handler)
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logger.addHandler(stream_handler)
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return logger
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logger = setup_logger()
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self.pipeline = None
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self.model_loaded = False
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async def initialize(self) -> None:
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if not self.config.HF_TOKEN:
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logger.error(
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"Token do Hugging Face não encontrado. O carregamento do modelo irá falhar."
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)
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return
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try:
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logger.info(f"A carregar o modelo: {self.config.MODEL_NAME}...")
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loop = asyncio.get_event_loop()
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def load_pipeline():
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# Nota: dependendo da versão do transformers/huggingface-hub,
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# o parâmetro pode ser use_auth_token ou token. Ajuste se necessário.
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return pipeline(
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"text-generation",
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model=self.config.MODEL_NAME,
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model_kwargs={"torch_dtype": "auto"},
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device_map="auto",
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use_auth_token=self.config.HF_TOKEN,
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)
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self.model_loaded = True
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logger.info("✅ Modelo carregado com sucesso!")
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except Exception as e:
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logger.error(f"❌ Erro ao carregar o modelo: {e}", exc_info=True)
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async def generate(self, request: GenerationRequest) -> Tuple[bool, str, int]:
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if not self.model_loaded or self.pipeline is None:
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return (
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False,
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"❌ O modelo não está disponível. Por favor, verifique os logs do servidor.",
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0,
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)
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try:
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if not request.prompt.strip():
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return False, "⚠️ O prompt não pode estar vazio.", 0
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loop = asyncio.get_event_loop()
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messages = [{"role": "user", "content": request.prompt.strip()}]
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def do_generation():
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# A pipeline que usava apply_chat_template é específica de alguns tokenizers;
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# mantemos o uso mas com fallback simples se não existir.
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tokenizer = getattr(self.pipeline, "tokenizer", None)
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if tokenizer and hasattr(tokenizer, "apply_chat_template"):
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prompt_text = tokenizer.apply_chat_template(
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messages, tokenize=False, add_generation_prompt=True
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)
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else:
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# Fallback simples
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prompt_text = request.prompt.strip()
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outputs = self.pipeline(
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prompt_text,
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top_p=request.top_p,
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)
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generated_text = outputs[0].get("generated_text", "")
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# Se usamos prompt_text, retirar a parte inicial que corresponde ao prompt
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if generated_text.startswith(prompt_text):
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generated_text = generated_text[len(prompt_text) :]
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tokens_used = 0
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if tokenizer and hasattr(tokenizer, "encode"):
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try:
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tokens_used = len(tokenizer.encode(generated_text))
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except Exception:
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tokens_used = 0
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return generated_text, tokens_used
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return True, generated_text, tokens_used
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except Exception as e:
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logger.error(f"Erro na geração: {e}", exc_info=True)
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return False, f"❌ A geração falhou: {str(e)}", 0
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async def generate_text(self, api_key: str, prompt: str, **kwargs) -> APIResponse:
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if not api_key or not api_key.startswith("gsk-"):
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return APIResponse(success=False, error="Chave de API inválida ou ausente.")
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try:
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request = GenerationRequest(prompt=prompt, **kwargs)
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success, text, tokens_used = await self.model_manager.generate(request)
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if success:
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return APIResponse(
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success=True, data={"generated_text": text, "tokens_used": tokens_used}
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)
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else:
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return APIResponse(success=False, error=text)
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except Exception as e:
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logger.error(f"Erro de serviço durante a geração de texto: {e}", exc_info=True)
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return APIResponse(success=False, error="Ocorreu um erro interno no serviço.")
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def __init__(self, service: GemmaService):
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self.service = service
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def create_custom_css(self) -> str:
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return """
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:root {
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--dark-bg: #0a0a0a; --panel-bg: #1a1a1a; --border-color: #333;
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.gr-slider { color: var(--text-light); }
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"""
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async def create_interface(self) -> gr.Blocks:
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with gr.Blocks(css=self.create_custom_css(), theme=None) as app:
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with gr.Row(elem_id="main_layout", equal_height=False):
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with gr.Column(scale=2):
|
| 229 |
with gr.Column(elem_id="left_panel"):
|
| 230 |
+
output_display = gr.Markdown(
|
| 231 |
+
elem_id="output_display",
|
| 232 |
+
value="<p style='color: #a0a0a0;'>A sua resposta aparecerá aqui...</p>",
|
| 233 |
+
)
|
| 234 |
with gr.Column(elem_id="input_area"):
|
| 235 |
+
api_key_input = gr.Textbox(
|
| 236 |
+
label="A Sua Chave de API",
|
| 237 |
+
placeholder="Cole a sua chave gsk-... aqui",
|
| 238 |
+
type="password",
|
| 239 |
+
elem_id="api_key_input",
|
| 240 |
+
)
|
| 241 |
with gr.Row():
|
| 242 |
+
prompt_input = gr.Textbox(
|
| 243 |
+
show_label=False,
|
| 244 |
+
placeholder="Digite a sua mensagem...",
|
| 245 |
+
elem_id="prompt_input",
|
| 246 |
+
scale=10,
|
| 247 |
+
)
|
| 248 |
send_button = gr.Button("➤ Enviar", elem_id="send_button", scale=2)
|
| 249 |
|
| 250 |
with gr.Column(scale=1):
|
|
|
|
| 253 |
key_button = gr.Button("✨ Gerar Nova Chave", elem_id="generate_button")
|
| 254 |
|
| 255 |
with gr.Accordion("Parâmetros Avançados", open=False):
|
| 256 |
+
temp_slider = gr.Slider(
|
| 257 |
+
minimum=0.1, maximum=2.0, value=0.7, step=0.1, label="Temperatura"
|
| 258 |
+
)
|
| 259 |
+
max_tokens_slider = gr.Slider(
|
| 260 |
+
minimum=64, maximum=self.service.config.MAX_TOKENS, value=512, step=64, label="Max Tokens"
|
| 261 |
+
)
|
| 262 |
+
top_k_slider = gr.Slider(
|
| 263 |
+
minimum=1, maximum=100, value=50, step=1, label="Top-K"
|
| 264 |
+
)
|
| 265 |
+
top_p_slider = gr.Slider(
|
| 266 |
+
minimum=0.1, maximum=1.0, value=0.95, step=0.05, label="Top-P"
|
| 267 |
+
)
|
| 268 |
|
| 269 |
gr.Markdown("### Como Usar a API")
|
| 270 |
+
api_example_display = gr.HTML(
|
| 271 |
+
"<p style='color: #a0a0a0;'>Clique em 'Gerar Nova Chave' para ver um exemplo de código.</p>"
|
| 272 |
+
)
|
| 273 |
|
| 274 |
def handle_key_generation():
|
| 275 |
+
# Gera chave e mostra exemplo de payload
|
| 276 |
key = f"gsk-{secrets.token_urlsafe(24).replace('_', '').replace('-', '')}"
|
| 277 |
code_html = f"""
|
| 278 |
+
<div class="code-snippet">
|
| 279 |
+
<div><span class="keyword">import</span> requests</div>
|
| 280 |
<div> </div>
|
| 281 |
+
<div>url = <span class="string">"https://SEU_SPACE.hf.space/run/generate"</span></div>
|
| 282 |
<div>payload = {{</div>
|
| 283 |
+
<div> <span class="string">"api_key"</span>: <span class="string">"{key}"</span>,</div>
|
| 284 |
+
<div> <span class="string">"prompt"</span>: <span class="string">"Escreva um haikai sobre o universo"</span>,</div>
|
| 285 |
+
<div> <span class="string">"max_tokens"</span>: <span class="number">50</span></div>
|
| 286 |
<div>}}</div>
|
| 287 |
<div> </div>
|
| 288 |
<div>response = requests.post(url, json=payload)</div>
|
| 289 |
+
<div><span class="keyword">print</span>(response.json())</div>
|
| 290 |
</div>
|
| 291 |
"""
|
| 292 |
+
return key, gr.update(value=code_html)
|
|
|
|
| 293 |
|
| 294 |
async def handle_generation(api_key, prompt, temp, max_tokens, top_k, top_p, btn):
|
| 295 |
+
# Validações básicas
|
| 296 |
if not api_key:
|
| 297 |
+
yield (
|
| 298 |
+
"<p style='color: #FFCC00;'>Por favor, insira a sua chave de API para começar.</p>",
|
| 299 |
+
gr.update(value="➤ Enviar", interactive=True),
|
| 300 |
+
)
|
| 301 |
return
|
| 302 |
+
|
| 303 |
if not prompt:
|
| 304 |
+
yield (
|
| 305 |
+
"<p style='color: #FFCC00;'>Por favor, digite um prompt.</p>",
|
| 306 |
+
gr.update(value="➤ Enviar", interactive=True),
|
| 307 |
+
)
|
| 308 |
return
|
| 309 |
|
| 310 |
+
# Indicador de carregamento
|
| 311 |
+
yield "<p style='color: #a0a0a0;'>A gerar resposta...</p>", gr.update(value="A gerar...", interactive=False)
|
| 312 |
|
|
|
|
| 313 |
response = await self.service.generate_text(
|
| 314 |
api_key=api_key,
|
| 315 |
prompt=prompt,
|
| 316 |
+
temperature=temp,
|
| 317 |
max_tokens=int(max_tokens),
|
| 318 |
top_k=int(top_k),
|
| 319 |
+
top_p=top_p,
|
| 320 |
)
|
| 321 |
|
| 322 |
if response.success:
|
| 323 |
formatted_text = html.escape(response.data["generated_text"]).replace("\n", "<br>")
|
| 324 |
+
yield formatted_text, gr.update(value="➤ Enviar", interactive=True)
|
| 325 |
else:
|
| 326 |
+
yield f"<p style='color: #FF4500;'>{response.error}</p>", gr.update(value="➤ Enviar", interactive=True)
|
| 327 |
|
| 328 |
+
# Registar handlers
|
| 329 |
send_button.click(
|
| 330 |
handle_generation,
|
| 331 |
inputs=[api_key_input, prompt_input, temp_slider, max_tokens_slider, top_k_slider, top_p_slider, send_button],
|
|
|
|
| 335 |
|
| 336 |
key_button.click(handle_key_generation, outputs=[api_key_input, api_example_display])
|
| 337 |
|
| 338 |
+
# Carregar exemplo inicial
|
| 339 |
+
app.load(
|
| 340 |
+
lambda: gr.update(value="<p style='color: #a0a0a0;'>Clique em 'Gerar Nova Chave' para ver um exemplo de código.</p>"),
|
| 341 |
+
[], # sem inputs
|
| 342 |
+
[api_example_display],
|
| 343 |
+
)
|
| 344 |
+
|
| 345 |
return app
|
| 346 |
|
| 347 |
|
| 348 |
# ----------------- Main Application -----------------
|
| 349 |
+
async def main():
|
|
|
|
| 350 |
try:
|
| 351 |
service = GemmaService()
|
| 352 |
+
await service.initialize()
|
|
|
|
| 353 |
|
| 354 |
interface = GradioInterface(service)
|
| 355 |
+
app = await interface.create_interface()
|
| 356 |
|
| 357 |
+
# Ligar a interface Gradio
|
| 358 |
+
app.launch(server_name="0.0.0.0", server_port=7860, share=False, debug=False)
|
| 359 |
except Exception as e:
|
| 360 |
logger.critical(f"Falha ao iniciar a aplicação: {e}", exc_info=True)
|
| 361 |
|
| 362 |
|
| 363 |
if __name__ == "__main__":
|
| 364 |
+
asyncio.run(main())
|