Create app.py

app.py

@@ -0,0 +1,46 @@
+import gradio as gr, tempfile, os, subprocess, json
+
+BLENDER = "blender"  # symlinked in Dockerfile
+
+def build_prop(spec_file):
+    try:
+        spec_path = spec_file.name
+        with open(spec_path, "r") as f:
+            spec = json.load(f)
+    except Exception as e:
+        return None, f"Invalid JSON: {e}"
+
+    # Minimal validation
+    if "type" not in spec:
+        return None, "Spec must include a 'type' field (e.g., 'book')."
+    if "name" not in spec:
+        spec["name"] = f"{spec['type']}_auto"
+
+    # Choose generator by type (extend later)
+    generator = "generate_book.py" if spec["type"] == "book" else "generate_book.py"
+
+    out_dir = tempfile.mkdtemp()
+    cmd = [BLENDER, "-b", "-P", generator, "--", "--spec", spec_path, "--out", out_dir]
+
+    try:
+        run = subprocess.run(cmd, check=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, text=True)
+        logs = run.stdout
+    except subprocess.CalledProcessError as e:
+        return None, f"Blender failed:\n{e.stdout}"
+
+    # Return the first .glb in out_dir
+    glbs = [os.path.join(out_dir, f) for f in os.listdir(out_dir) if f.lower().endswith(".glb")]
+    if not glbs:
+        return None, f"No .glb exported.\nLogs:\n{logs}"
+    return glbs[0], "Success."
+
+demo = gr.Interface(
+    fn=build_prop,
+    inputs=gr.File(label="Upload PropSpec JSON"),
+    outputs=[gr.File(label="Generated .glb"), gr.Textbox(label="Log")],
+    title="Code-Generated Props (Blender Headless)",
+    description="Upload a JSON PropSpec to generate a .glb (book prop for now)."
+)
+
+if _name_ == "_main_":
+    demo.launch(server_name="0.0.0.0", server_port=int(os.getenv("PORT", "7860")))