import gradio as gr
from transformers import (
    AutoModelForSeq2SeqLM,
    AutoModelForTableQuestionAnswering,
    AutoTokenizer,
    pipeline,
    TapexTokenizer, 
    BartForConditionalGeneration
)
import pandas as pd

# model_tapex = "microsoft/tapex-large-finetuned-wtq"
# tokenizer_tapex = AutoTokenizer.from_pretrained(model_tapex)
# model_tapex = AutoModelForSeq2SeqLM.from_pretrained(model_tapex)
# pipe_tapex = pipeline(
#     "table-question-answering", model=model_tapex, tokenizer=tokenizer_tapex
# )

#new
tokenizer = TapexTokenizer.from_pretrained("microsoft/tapex-large-finetuned-wtq")
model = BartForConditionalGeneration.from_pretrained("microsoft/tapex-large-finetuned-wtq")


# model_tapas = "google/tapas-large-finetuned-wtq"
# tokenizer_tapas = AutoTokenizer.from_pretrained(model_tapas)
# model_tapas = AutoModelForTableQuestionAnswering.from_pretrained(model_tapas)
# pipe_tapas = pipeline(
#     "table-question-answering", model=model_tapas, tokenizer=tokenizer_tapas
# )

#new
pipe_tapas = pipeline(task="table-question-answering", model="google/tapas-large-finetuned-wtq")




def process2(query, csv_data):
    # csv_data={"Actors": ["Brad Pitt", "Leonardo Di Caprio", "George Clooney"], "Number of movies": ["87", "53", "69"]}
    table = pd.DataFrame.from_dict(csv_data)
    #microsoft
    encoding = tokenizer(table=table, query=query, return_tensors="pt")
    outputs = model.generate(**encoding)
    result_tapex=tokenizer.batch_decode(outputs, skip_special_tokens=True)[0]
    #google
    result_tapas = pipe_tapas(table=table, query=query)['cells'][0]
    return result_tapex, result_tapas


# Inputs
query_text = gr.Text(label="Enter a question")
# input_file = gr.File(label="Upload a CSV file", type="file")
input_data = gr.Text(label="Input table json data")
# rows_slider = gr.Slider(label="Number of rows")

# Output
answer_text_tapex = gr.Text(label="TAPEX answer")
answer_text_tapas = gr.Text(label="TAPAS answer")

description = "This Space lets you ask questions on CSV documents with Microsoft [TAPEX-Large](https://huggingface.co/microsoft/tapex-large-finetuned-wtq) and Google [TAPAS-Large](https://huggingface.co/google/tapas-large-finetuned-wtq). \
Both have been fine-tuned on the [WikiTableQuestions](https://huggingface.co/datasets/wikitablequestions) dataset. \n\n\
A sample file with football statistics is available in the repository: \n\n\
* Which team has the most wins? Answer: Manchester City FC\n\
* Which team has the most wins: Chelsea, Liverpool or Everton? Answer: Liverpool\n\
* Which teams have scored less than 40 goals? Answer: Cardiff City FC, Fulham FC, Brighton & Hove Albion FC, Huddersfield Town FC\n\
* What is the average number of wins? Answer: 16 (rounded)\n\n\
You can also upload your own CSV file. Please note that maximum sequence length for both models is 1024 tokens, \
so you may need to limit the number of rows in your CSV file. Chunking is not implemented yet."

iface = gr.Interface(
    theme="huggingface",
    description=description,
    layout="vertical",
    fn=process2,
    inputs=[query_text, input_data],
    outputs=[answer_text_tapex, answer_text_tapas],
    examples=[
        
    ],
    allow_flagging="never",
)

iface.launch()