services:
  diagnostic:
    image: nvcr.io/nvidia/pytorch:25.12-py3
    network_mode: host
    gpus: all
    volumes:
      - /:/host:ro
      - ./diagnostics:/diagnostics
    command:
      - /bin/bash
      - -lc
      - |
        set -uo pipefail
        exec > /diagnostics/report.txt 2>&1
        echo "timestamp=$$(date -u +%FT%TZ)"
        echo "hostname=$$(cat /host/etc/hostname 2>/dev/null || true)"
        echo "lan_ipv4=$$(hostname -I 2>/dev/null || true)"
        python3 - <<'PY'
        import socket
        for port in range(18120, 18130):
            sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
            try:
                sock.bind(('0.0.0.0', port))
                print(f'port_{port}=free')
            except OSError as exc:
                print(f'port_{port}=busy:{exc.errno}')
            finally:
                sock.close()
        PY
        echo '--- nvidia-smi ---'
        nvidia-smi
        echo '--- cuda/python ---'
        python3 - <<'PY'
        import torch
        print('torch=' + torch.__version__)
        print('cuda_available=' + str(torch.cuda.is_available()))
        if torch.cuda.is_available():
            print('gpu_name=' + torch.cuda.get_device_name(0))
            print('gpu_total_bytes=' + str(torch.cuda.get_device_properties(0).total_memory))
        PY
        echo '--- target directories ---'
        for path in /host/mnt/user/appdata/tail2-pose-server /host/mnt/user/appdata/tail2-pose-server-v1; do
          if [ -e "$$path" ]; then
            stat -c '%A %a %u:%g %n' "$$path"
            find "$$path" -mindepth 1 -maxdepth 2 -printf '%M %u:%g %p\n' | head -100
          else
            echo "missing $$path"
          fi
        done
        echo '--- NDI runtime candidates ---'
        find /host/usr /host/opt /host/mnt/user/appdata -xdev \( -iname 'libndi.so*' -o -iname '*ndi*runtime*' -o -iname 'Processing.NDI.Lib.h' \) -print 2>/dev/null | head -200
        echo '--- camera reachability ---'
        python3 - <<'PY'
        import socket
        print('camera_tcp_probe_only=192.168.50.207')
        for port in (80, 443, 5960, 5961):
            s = socket.socket()
            s.settimeout(1)
            try:
                rc = s.connect_ex(('192.168.50.207', port))
            finally:
                s.close()
            print(f'camera_port_{port}_connect_ex={rc}')
        PY