import gradio as gr
from transformers import AutoConfig

# Initialize with some common models
model_list = ["bert-base-uncased", "gpt2", "distilbert-base-uncased"]

def add_model_to_list(new_model):
    if new_model and new_model not in model_list:
        model_list.append(new_model)
    return model_list

def create_config(model_name, num_labels, use_cache):
    if model_name not in model_list:
        model_list.append(model_name)
    config = AutoConfig.from_pretrained(model_name, num_labels=num_labels, use_cache=use_cache)
    return str(config)

with gr.Blocks() as demo:
    gr.Markdown("## Config Class - Transformers")
    with gr.Row():
        model_dropdown = gr.Dropdown(label="Select a Model", choices=model_list, value=model_list[0])
        new_model_input = gr.Textbox(label="Add a New Model", placeholder="Enter model name")
        add_model_button = gr.Button("Add Model")
    num_labels_input = gr.Number(label="Number of Labels", value=2)
    use_cache_input = gr.Checkbox(label="Use Cache", value=True)
    output_area = gr.Textbox(label="Config Output", readonly=True)
    submit_button = gr.Button("Create Config")

    add_model_button.click(fn=add_model_to_list, inputs=new_model_input, outputs=model_dropdown)
    submit_button.click(fn=create_config, inputs=[model_dropdown, num_labels_input, use_cache_input], outputs=output_area)

demo.launch()