import gradio as gr
import threading
import time
from datetime import datetime, timedelta, timezone
from updater import run_update_pipeline

IST = timezone(timedelta(hours=5, minutes=30))
status_logs = ["System Initialized."]
update_running = False

def append_log(msg):
    global status_logs
    timestamp = datetime.now(IST).strftime("%Y-%m-%d %H:%M:%S")
    full_msg = f"[{timestamp}] {msg}"
    status_logs.append(full_msg)
    if len(status_logs) > 50:
        status_logs.pop(0)

def force_update():
    global update_running
    if update_running:
        return "Update is already running!"
    
    update_running = True
    append_log("Manual update triggered.")
    
    def worker():
        global update_running
        try:
            run_update_pipeline(log_callback=append_log)
        except Exception as e:
            append_log(f"Error in pipeline: {e}")
        finally:
            update_running = False
            
    threading.Thread(target=worker, daemon=True).start()
    return "Update started. Check logs for progress."

def get_logs():
    return "\n".join(status_logs)

def daemon_loop():
    global update_running
    append_log("Daemon thread started. Running initial startup check...")
    
    # Run immediately on startup
    update_running = True
    try:
        run_update_pipeline(log_callback=append_log)
    except Exception as e:
        append_log(f"Startup update failed: {e}")
    finally:
        update_running = False

    last_run_date = datetime.now(IST).date()
    
    while True:
        now = datetime.now(IST)
        is_weekday = now.weekday() < 5
        past_market_close = now.hour > 15 or (now.hour == 15 and now.minute >= 30)
        
        if is_weekday and past_market_close and not update_running:
            if last_run_date != now.date():
                append_log("Scheduled daily update starting...")
                update_running = True
                try:
                    run_update_pipeline(log_callback=append_log)
                    last_run_date = now.date()
                except Exception as e:
                    append_log(f"Scheduled update failed: {e}")
                finally:
                    update_running = False
        
        time.sleep(60) # check every minute

threading.Thread(target=daemon_loop, daemon=True).start()

with gr.Blocks(title="Groww Data Updater") as demo:
    gr.Markdown("# 📈 Groww Data Updater")
    gr.Markdown("This space automatically runs every weekday after 15:30 IST to fetch new minute-level data and push it to Hugging Face.")
    
    with gr.Row():
        btn = gr.Button("Force Update Now", variant="primary")
        
    logs = gr.Textbox(label="Status Logs", lines=15, value=get_logs, every=5)
    
    btn.click(force_update, outputs=gr.Textbox(visible=False))

if __name__ == "__main__":
    demo.queue().launch(server_name="0.0.0.0", server_port=7860)