Update app.py

app.py

@@ -1,42 +1,85 @@
 import os
 import zipfile
 import subprocess
+import base64
+import sys
+import pathlib
 import gradio as gr
 
 ZIP_FILE = "newtons-cradle-simulation.zip"
 APP_DIR = "app"
+BUILD_DIR = os.path.join(APP_DIR, "dist")  # vite default output
+POSSIBLE_INDEXES = [
+    os.path.join(BUILD_DIR, "index.html"),
+    os.path.join(APP_DIR, "build", "index.html"),
+    os.path.join(APP_DIR, "public", "index.html"),
+]
 
-# 1. Распаковка
+def run_cmd(cmd, cwd=None):
+    try:
+        res = subprocess.run(cmd, cwd=cwd, capture_output=True, text=True, check=False)
+        print(f"CMD: {' '.join(cmd)}  (cwd={cwd})")
+        print("returncode:", res.returncode)
+        if res.stdout:
+            print("--- stdout ---")
+            print(res.stdout)
+        if res.stderr:
+            print("--- stderr ---", file=sys.stderr)
+            print(res.stderr, file=sys.stderr)
+        return res.returncode == 0
+    except Exception as e:
+        print("Exception running command:", e, file=sys.stderr)
+        return False
+
+# 1) Распаковка архива (если ещё не распаковано)
 if not os.path.exists(APP_DIR):
+    if not os.path.exists(ZIP_FILE):
+        raise FileNotFoundError(f"Zip file not found in repo root: {ZIP_FILE}")
     with zipfile.ZipFile(ZIP_FILE, "r") as z:
         z.extractall(APP_DIR)
+    print(f"Archive extracted to '{APP_DIR}'")
+else:
+    print(f"App dir '{APP_DIR}' already exists (runtime).")
+
+# 2) npm install
+if os.path.exists(APP_DIR):
+    run_cmd(["npm", "install"], cwd=APP_DIR)
+else:
+    print("Skipping npm install: app dir missing")
 
-# 2. npm install
-subprocess.run(["npm", "install"], cwd=APP_DIR, check=False)
+# 3) npm run build
+if os.path.exists(APP_DIR):
+    run_cmd(["npm", "run", "build"], cwd=APP_DIR)
+else:
+    print("Skipping npm run build: app dir missing")
 
-# 3. npm build
-subprocess.run(["npm", "run", "build"], cwd=APP_DIR, check=False)
+# 4) найти index.html
+index_path = None
+for p in POSSIBLE_INDEXES:
+    if os.path.exists(p):
+        index_path = p
+        break
 
-# 4. Определяем index.html
-INDEX_HTML = None
-for p in ["dist/index.html", "build/index.html", "public/index.html"]:
-    full = os.path.join(APP_DIR, p)
-    if os.path.exists(full):
-        INDEX_HTML = full
+if index_path is None:
+    # fallback: try to find any index.html under app dir
+    for p in pathlib.Path(APP_DIR).rglob("index.html"):
+        index_path = str(p)
         break
 
-if INDEX_HTML is None:
-    raise RuntimeError("index.html not found after build")
+if index_path is None:
+    raise RuntimeError("index.html not found after build. Проверь структуру сборки в логах.")
+
+print("Using index:", index_path)
+
+# 5) прочитать и встроить в iframe через data: URL
+with open(index_path, "rb") as f:
+    html_bytes = f.read()
+b64 = base64.b64encode(html_bytes).decode("ascii")
+data_url = f"data:text/html;base64,{b64}"
 
-# 5. Gradio UI
 with gr.Blocks() as demo:
-    gr.HTML(f"""
-    <iframe
-        src="file={INDEX_HTML}"
-        width="100%"
-        height="700"
-        style="border:none;"
-    ></iframe>
-    """)
+    gr.Markdown("### Newtons pendulum — встроенное приложение (build → dist/index.html)")
+    gr.HTML(f'<iframe src="{data_url}" width="100%" height="800" style="border:none;"></iframe>')
 
+# 6) Запуск Gradio
 demo.launch()