from __future__ import annotations

import gradio as gr

from tool import BrightDataDatasetTool, DATASET_CHOICES, DATASET_FIELDS

tool = BrightDataDatasetTool()


def toggle_fields(selected: str):
    inputs = ["url", "keyword", "first_name", "last_name", "days_limit", "num_of_reviews", "num_of_comments"]
    wanted = set(DATASET_FIELDS.get(selected, []))

    def visibility(name: str):
        return gr.update(visible=name in wanted)

    return tuple(visibility(name) for name in inputs)


def run(dataset: str, url: str, keyword: str, first_name: str, last_name: str, days_limit: str, num_of_reviews: str, num_of_comments: str) -> str:
    import sys
    print(f"[DEBUG app.run] Received url: {url!r} (type: {type(url).__name__})", file=sys.stderr)

    return tool(
        dataset=dataset,
        url=url,
        keyword=keyword,
        first_name=first_name,
        last_name=last_name,
        days_limit=days_limit,
        num_of_reviews=num_of_reviews,
        num_of_comments=num_of_comments,
    )


def create_demo() -> gr.Blocks:
    with gr.Blocks() as demo:
        gr.Markdown("# Bright Data dataset fetch")
        gr.Markdown("### [Signup here](https://brightdata.com/?utm_source=tech-partner&utm_medium=link&utm_campaign=huggingface&hs_signup=1)")
        dataset = gr.Dropdown(choices=DATASET_CHOICES, label="Dataset", value=DATASET_CHOICES[0])
        url = gr.Textbox(label="URL", placeholder="https://...", visible=True)
        keyword = gr.Textbox(label="Keyword", visible=False)
        first_name = gr.Textbox(label="First name", visible=False)
        last_name = gr.Textbox(label="Last name", visible=False)
        days_limit = gr.Textbox(label="Days limit (e.g. 3)", visible=False)
        num_of_reviews = gr.Textbox(label="Number of reviews", visible=False)
        num_of_comments = gr.Textbox(label="Number of comments", visible=False)

        dataset.change(
            toggle_fields,
            inputs=[dataset],
            outputs=[url, keyword, first_name, last_name, days_limit, num_of_reviews, num_of_comments],
        )

        run_btn = gr.Button("Run")
        output = gr.Textbox(label="Output", lines=12)
        run_btn.click(
            run,
            inputs=[dataset, url, keyword, first_name, last_name, days_limit, num_of_reviews, num_of_comments],
            outputs=output,
        )
    return demo


if __name__ == "__main__":
    create_demo().launch()