# WirePlumber 0.5 ALSA rules: prefer dock / external sinks over built-in
# analog when they appear (BACKLOG #87). Higher priority.session wins as
# the default node; when HDMI/USB goes away, the next-highest (usually
# the laptop speakers/headphones) becomes default again.
#
# Pure attrset so checks.dock-audio can unit-test the contract without a
# full PipeWire stack. Consumed by modules/nixos/default.nix.
#
# Priorities stay ≤1500 (WirePlumber docs: sinks default ~600–1000; going
# much higher can outrank streams / BT in surprising ways).
{
  "monitor.alsa.rules" = [
    {
      # HDMI / DisplayPort monitor audio (names vary: .hdmi-stereo,
      # .hdmi-surround, HiFi__HDMI1__sink, …).
      matches = [
        { "node.name" = "~alsa_output\\..*\\.hdmi-.*"; }
        { "node.name" = "~alsa_output\\..*HDMI.*"; }
        { "node.name" = "~alsa_output\\..*\\.DisplayPort.*"; }
        { "node.name" = "~alsa_output\\..*\\.dp-.*"; }
      ];
      actions."update-props" = {
        "priority.driver" = 1100;
        "priority.session" = 1100;
      };
    }
    {
      # USB dock / dongle audio (Thunderbolt dock, USB-C audio, …).
      matches = [
        { "node.name" = "~alsa_output\\.usb-.*"; }
      ];
      actions."update-props" = {
        "priority.driver" = 1050;
        "priority.session" = 1050;
      };
    }
  ];
}