import gradio as gr

def register_study(title, domain, sphere, pi):
    study_id = f"STU-{hash(title) % 10000:04d}"
    result = f"Study ID: {study_id}\nTitle: {title}\nDomain: {domain}\nSphere: {sphere}\nPI: {pi}\nStatus: registered\nDate: 2026-05-11"
    return result

with gr.Blocks(title="studyreg") as demo:
    gr.Markdown("# Study Registry — Pre-register Your Study")
    title = gr.Textbox(label="Study Title")
    domain = gr.Dropdown(["biomedical","ml","climate","agriculture","economics","other"], label="Domain")
    sphere = gr.Dropdown(["Science","Entrepreneurship","Technology"], label="SET Sphere")
    pi = gr.Textbox(label="Principal Investigator")
    out = gr.Textbox(label="Registration Result")
    btn = gr.Button("Register Study")
    btn.click(register_study, [title, domain, sphere, pi], out)

demo.launch()