import gradio as gr
import os
from get_pulse import get_pulse_news  
import time

cached_result = None
last_fetch_time = 0
TTL = float(os.getenv("TTL_IN_SECONDS", 3600))

def get_cached_pulse():
    global cached_result, last_fetch_time
    current_time = time.time()
    if cached_result is not None and (current_time - last_fetch_time) < TTL:
        return cached_result
    result = get_pulse_news()
    cached_result = result
    last_fetch_time = current_time
    return result

def refresh_website():
    return get_cached_pulse()

def clear_output():
    return ""

with gr.Blocks() as demo:
    gr.Markdown("## Recent News")
    with gr.Row():
        refresh_button = gr.Button("Refresh")
        clear_button = gr.Button("Clear")
    markdown_display = gr.Markdown()  # This will display the fetched markdown text

    # Set up the button to call refresh_website when clicked.
    refresh_button.click(fn=refresh_website, inputs=[], outputs=markdown_display)
    clear_button.click(fn=clear_output, inputs=[], outputs=markdown_display)

demo.launch()