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app.py

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+"""HuggingFace Spaces app to host the stem conditioned results overview."""
+import os
+import subprocess
+import sys
+import gradio as gr
+from pathlib import Path
+
+# Determine project root (works whether app.py is in root or subdirectory)
+# Try parent.parent first (if in huggingface/), then just parent (if in root)
+app_dir = Path(__file__).parent
+parent_dir = app_dir.parent
+PROJECT_ROOT = parent_dir if (parent_dir / "stem_cond_overview.html").exists() else app_dir
+
+# Path to the HTML file
+HTML_FILE = PROJECT_ROOT / "stem_cond_overview.html"
+
+
+def download_audio_files():
+    """Download audio files on startup."""
+    print("Checking if audio files need to be downloaded...")
+    audio_dir = PROJECT_ROOT / "data" / "fullmix_mp3s"
+    
+    # Check if download is needed
+    if audio_dir.exists() and len(list(audio_dir.glob("*.mp3"))) > 0:
+        print(f"Found {len(list(audio_dir.glob('*.mp3')))} existing audio files.")
+        return
+    
+    print("No audio files found. Starting download...")
+    try:
+        # Run the download script
+        script_path = Path(__file__).parent / "download_audio.py"
+        result = subprocess.run(
+            [sys.executable, str(script_path)],
+            capture_output=True,
+            text=True,
+            timeout=3600  # 1 hour timeout
+        )
+        print("Download script output:")
+        print(result.stdout)
+        if result.stderr:
+            print("Download script errors:")
+            print(result.stderr)
+    except subprocess.TimeoutExpired:
+        print("Download script timed out after 1 hour")
+    except Exception as e:
+        print(f"Error running download script: {e}")
+
+
+def render_html():
+    """Load and return the HTML content."""
+    if HTML_FILE.exists():
+        with open(HTML_FILE, 'r', encoding='utf-8') as f:
+            return f.read()
+    return "<h1>HTML file not found</h1><p>Please generate the overview first.</p>"
+
+
+# Create Gradio interface
+def create_interface():
+    """Create the Gradio interface."""
+    html_content = render_html()
+    
+    # Create a Gradio HTML component
+    demo = gr.HTML(
+        value=html_content,
+        label="Stem Conditioned Results Overview"
+    )
+    
+    return demo
+
+
+if __name__ == "__main__":
+    # Download audio files on startup
+    download_audio_files()
+    
+    # Launch the interface
+    demo = create_interface()
+    demo.launch(server_name="0.0.0.0", server_port=7860)
+