import gradio as gr
import csv
import os

APPT_FILE = "appointments.csv"

def load_appointments():
    if not os.path.exists(APPT_FILE):
        return [["No appointments found"]]
    with open(APPT_FILE, mode='r') as file:
        reader = list(csv.reader(file))
    return reader[1:] if len(reader) > 1 else [["No appointments available"]]

def gradio_interface():
    with gr.Blocks() as demo:
        gr.Markdown("## 📅 View Appointments")
        output = gr.Dataframe(headers=["Appointment ID", "Patient Name", "Doctor", "Date", "Time"], datatype="str")
        refresh = gr.Button("🔄 Refresh")
        refresh.click(fn=load_appointments, outputs=output)
    return demo