app.py

import subprocess
import os
import signal
import sys
import time

def run_services():
    """
    Runs the FastAPI backend and Next.js frontend services for Hugging Face Spaces.
    """

    # Environment variables for the services
    env = os.environ.copy()
    env["PORT"] = "7860"
    env["HOSTNAME"] = "0.0.0.0"

    print("🎵 Starting AudioForge DAW Services...")
    print("🔧 Backend: FastAPI (Port 8000)")
    print("🎨 Frontend: Next.js (Port 7860)")
    print("=" * 50)

    # 1. Start Backend (FastAPI)
    print("🚀 Starting FastAPI backend...")
    backend_process = subprocess.Popen(
        [sys.executable, "-m", "uvicorn", "backend.main:app",
         "--host", "127.0.0.1",
         "--port", "8000",
         "--workers", "1",
         "--loop", "asyncio"],
        env=env,
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE,
        cwd="/app"  # Set working directory to project root
    )

    # Give backend time to start
    time.sleep(3)

    if backend_process.poll() is None:
        print(f"✅ Backend started successfully (PID: {backend_process.pid})")
    else:
        print("❌ Backend failed to start")
        stdout, stderr = backend_process.communicate()
        print("Backend stdout:", stdout.decode())
        print("Backend stderr:", stderr.decode())
        return

    # 2. Start Frontend (Next.js Standalone)
    print("🚀 Starting Next.js frontend...")
    frontend_process = subprocess.Popen(
        ["node", "server.js"],
        env=env,
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE
    )

    # Give frontend time to start
    time.sleep(3)

    if frontend_process.poll() is None:
        print(f"✅ Frontend started successfully (PID: {frontend_process.pid})")
        print("=" * 50)
        print("🎉 AudioForge is now running!")
        print("🌐 Access your DAW at: https://your-space-name.hf.space")
        print("📚 API Documentation: https://your-space-name.hf.space/docs")
        print("=" * 50)
    else:
        print("❌ Frontend failed to start")
        stdout, stderr = frontend_process.communicate()
        print("Frontend stdout:", stdout.decode())
        print("Frontend stderr:", stderr.decode())
        return

    def signal_handler(sig, frame):
        print("\n🛑 Shutting down AudioForge services...")
        backend_process.terminate()
        frontend_process.terminate()
        print("✅ Services stopped")
        sys.exit(0)

    signal.signal(signal.SIGINT, signal_handler)
    signal.signal(signal.SIGTERM, signal_handler)

    # Wait for processes
    backend_process.wait()
    frontend_process.wait()

if __name__ == "__main__":
    run_services()