app.py

import gradio as gr
import app_v1
import app_v2

MODE_HELP = (
    "Pick a demo mode below. "
    "v2 generates a prediction-only rollout: it seeds the model with the first s frames (max 16) and rolls out N total frames. "
    "v1 compares prediction vs ground truth over the full sequence and reports relative L2 error over time. "
    "See the Space README for details."
)

# Build Interfaces OUTSIDE the parent Blocks context (prevents double-render)
iface_v2 = app_v2.build_demo()
iface_v1 = app_v1.build_demo()

with gr.Blocks(title="Time-Dependent DeepONet – FPO Rollout Demo") as demo:
    gr.Markdown("## Time-Dependent DeepONet – FPO Rollout Demo")
    gr.Markdown(MODE_HELP)

    with gr.Tabs():
        with gr.Tab("v2 — Prediction-only rollout"):
            iface_v2.render()

        with gr.Tab("v1 — GT comparison + metrics"):
            iface_v1.render()

if __name__ == "__main__":
    demo.queue().launch(ssr_mode=False)