import gradio
import json
import torch
from transformers import AutoTokenizer
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from onnx_transformers import pipeline

class OnnxTokenClassificationPipeline(TokenClassificationPipeline):

# CORS Config
app = FastAPI()

app.add_middleware(
    CORSMiddleware,
    allow_origins=["https://jhuhman.com"], #["https://statosphere-3704059fdd7e.c5v4v4jx6pq5.win"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

model_name = "xenova/mobilebert-uncased-mnli"

classifier = pipeline(task="zero-shot-classification", model=model_name, onnx=True)

def zero_shot_classification(data_string):
    print(data_string)
    data = json.loads(data_string)
    print(data)
    results = classifier(data['sequence'], candidate_labels=data['candidate_labels'], hypothesis_template=data['hypothesis_template'], multi_label=data['multi_label'])
    response_string = json.dumps(results)
    return response_string

gradio_interface = gradio.Interface(
    fn = zero_shot_classification,
    inputs = gradio.Textbox(label="JSON Input"),
    outputs = gradio.Textbox()
)
gradio_interface.launch()