backend/app_hf.py

"""
Hugging Face Space Entrypoint.
Serves the API and the Static Frontend.
"""
import os
from fastapi.staticfiles import StaticFiles
from fastapi.responses import FileResponse
from app.main import app

# Ensure we use SQLite for Spaces if not set
if "DATABASE_URL" not in os.environ:
    os.environ["DATABASE_URL"] = "sqlite+aiosqlite:///./storage/audioforge.db"

# Mount Static Frontend
# We assume the frontend is built to /app/static
if os.path.exists("/app/static"):
    app.mount("/_next", StaticFiles(directory="/app/static/_next"), name="static_next")
    app.mount("/assets", StaticFiles(directory="/app/static/assets"), name="static_assets")
    # Serve icon
    @app.get("/icon")
    async def icon():
        return FileResponse("/app/static/icon")

    # SPA Catch-all (for routes not matching API or static files)
    @app.get("/{full_path:path}")
    async def serve_spa(full_path: str):
        if full_path.startswith("api"):
            from fastapi import HTTPException
            raise HTTPException(status_code=404, detail="Not Found")
        
        # Check if file exists in static (e.g. favicon.ico)
        possible_path = f"/app/static/{full_path}"
        if os.path.isfile(possible_path):
            return FileResponse(possible_path)
            
        return FileResponse("/app/static/index.html")

if __name__ == "__main__":
    import uvicorn
    uvicorn.run(app, host="0.0.0.0", port=7860)