from fastapi import FastAPI, HTTPException, UploadFile
from fastapi.middleware.cors import CORSMiddleware
from fastapi import FastAPI, UploadFile 
from typing import Union 
import json 
import csv
from modeles import bert, squeezebert, deberta
from uploadFile import file_to_text
from typing import List



app = FastAPI()

app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)


@app.on_event("startup")
async def startup_event():
    print("start")


@app.get("/")
async def root():
    return {"message": "Hello World"}


@app.post("/uploadfile/")
async def create_upload_file(files: List[UploadFile], texte: str, model: str):
    res = []
    for file in files:
        fileToText = await file_to_text(file)

        res.append({"model": model, "texte": texte, "filename": file.filename, "file_to_text": fileToText})

    return res


@app.post("/contextText/")
async def create_upload_file(context: str, texte: str, model: str):

    return {"model": model, "texte": texte, "context": context}


@app.post("/withoutFile/")
async def create_upload_file(texte: str, model: str):

    return {"model": model, "texte": texte}

# # Modèle Pydantic pour les requêtes SqueezeBERT
# class SqueezeBERTRequest(BaseModel):
#     context: str
#     question: str
@app.post("/squeezebert/")
async def qasqueezebert(context: str, question: str):
    try:
        squeezebert_answer = squeezebert(context, question)
        if squeezebert_answer:
            return squeezebert_answer
        else:
            raise HTTPException(status_code=404, detail="No answer found")
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"An error occurred: {str(e)}")

# # Modèle Pydantic pour les requêtes BERT
# class BERTRequest(BaseModel):
#     context: str
#     question: str
@app.post("/bert/")
async def qabert(context: str, question: str):
    try:
        bert_answer = bert(context, question)
        if bert_answer:
            return bert_answer
        else:
            raise HTTPException(status_code=404, detail="No answer found")
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"An error occurred: {str(e)}")

# # Modèle Pydantic pour les requêtes DeBERTa
# class DeBERTaRequest(BaseModel):
#     context: str
#     question: str
@app.post("/deberta-v2/")
async def qadeberta(context: str, question: str):
    try:
        deberta_answer = deberta(context, question)
        if deberta_answer:
            return deberta_answer
        else:
            raise HTTPException(status_code=404, detail="No answer found")
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"An error occurred: {str(e)}")

def extract_data(file: UploadFile) -> Union[str, dict, list]:
    if file.filename.endswith(".txt"):
        data = file.file.read()
        return data.decode("utf-8")
    elif file.filename.endswith(".csv"):
        data = file.file.read().decode("utf-8")
        rows = data.split("\n")
        reader = csv.DictReader(rows)
        return [dict(row) for row in reader]
    elif file.filename.endswith(".json"):
        data = file.file.read().decode("utf-8")
        return json.loads(data)
    else:
        return "Invalid file format"