from fastapi import FastAPI, UploadFile, File
from transformers import AutoModelForCausalLM, AutoTokenizer

app = FastAPI()

# Charger DeepSeek depuis Hugging Face
model = AutoModelForCausalLM.from_pretrained("deepseek-ai/DeepSeek-V2-Chat")
tokenizer = AutoTokenizer.from_pretrained("deepseek-ai/DeepSeek-V2-Chat")

@app.post("/summarization/text")
async def summarize_text(file: UploadFile = File(...)):
    content = await file.read()
    text = content.decode("utf-8")
    prompt = f"Résume ce texte en 3 phrases courtes : {text}"
    inputs = tokenizer(prompt, return_tensors="pt")
    outputs = model.generate(**inputs, max_length=100)
    summary = tokenizer.decode(outputs[0], skip_special_tokens=True)
    return {"summary": summary}