# roles/thin-client/hardware/dell-optiplex-micro.nix
#
# Hardware class for Dell OptiPlex Micro (3020/3040/5040/7040).
# These are 5th–7th gen Intel Core mini-PCs, all using Intel i915 graphics,
# all UEFI-bootable. Driver-wise they're nearly identical.
#
# Notes:
# - 3020 (Broadwell, 5th gen) — slightly older firmware, but i915 supports it.
# - 3040/5040 (Skylake, 6th gen) — mainstream.
# - 7040 (Skylake/Kaby Lake, 6th/7th gen) — some vPro variants exist.
# All variants: Intel ME present (mostly inactive unless explicitly provisioned).
{
  config,
  lib,
  pkgs,
  ...
}: {
  config = lib.mkIf (config.az.tc.enable && config.az.tc.hardwareClass == "dell-optiplex-micro") {
    boot = {
      loader.systemd-boot.enable = true;
      loader.efi.canTouchEfiVariables = true;
      initrd.kernelModules = ["i915" "snd_hda_intel"];
      kernelModules = ["i915" "thinkpad_acpi" "coretemp"];
      kernelParams = [
        # Quiet boot for kiosk-like feel
        "quiet"
        "splash"
        # Avoid rare i915 glitches on Skylake
        "i915.enable_guc=2"
      ];
      kernelPackages = pkgs.linuxPackages_latest;
    };

    services.xserver.videoDrivers = ["modesetting"];

    # Firmware for Intel WiFi/BT on these models
    hardware.enableRedistributableFirmware = true;
    hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;

    # Audio via Pipewire (set up in session/default.nix); just ensure
    # sound firmware is present.
    hardware.firmware = lib.mkDefault [pkgs.sof-firmware];

    # Suspend/wake — Thin Clients are typically always-on; disable sleep
    # to avoid Wake-on-LAN issues on the Dell NIC.
    systemd.targets.sleep.enable = false;
    systemd.targets.suspend.enable = false;
    systemd.targets.hibernate.enable = false;
    systemd.targets.hybrid-sleep.enable = false;
  };
}