# Hardware configuration for NAS
# TODO: Update disk labels/UUIDs after installation
{ config, lib, pkgs, modulesPath, ... }:
{
  imports = [
    (modulesPath + "/installer/scan/not-detected.nix")
  ];

  boot.loader.systemd-boot = {
    enable = true;
    configurationLimit = 5;
  };
  boot.loader.efi.canTouchEfiVariables = true;
  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usb_storage" "sd_mod" ];
  boot.initrd.kernelModules = [ "dm-snapshot" ];
  boot.kernelModules = [ "kvm-intel" ];
  boot.extraModulePackages = [ ];

  # Power management kernel parameters
  boot.kernelParams = [
    "intel_pstate=passive"    # Better with powersave governor
    "i915.enable_rc6=1"       # GPU deep sleep states
    "i915.enable_dc=2"        # Display C-states (deepest)
    "i915.enable_fbc=1"       # Frame buffer compression
  ];

  # RAID 1 array for data storage
  boot.swraid = {
    enable = true;
    mdadmConf = ''
      DEVICE /dev/disk/by-id/ata-ST18000NM000J-2TV103_ZR52TBSB-part1
      DEVICE /dev/disk/by-id/ata-ST18000NM000J-2TV103_ZR52V9QX-part1
    '';
  };

  # Tmpfs root filesystem (ephemeral - resets on reboot)
  fileSystems."/" = {
    device = "none";
    fsType = "tmpfs";
    options = [ "size=8G" "mode=755" ];
  };

  # Boot partition - EFI
  fileSystems."/boot" = {
    device = "/dev/disk/by-partlabel/BOOT";
    fsType = "vfat";
  };

  fileSystems."/nix" = {
    device = "/dev/disk/by-partlabel/NIXOS";
    fsType = "btrfs";
    neededForBoot = true;
    options = [
      "subvol=@"
      "compress=zstd:1"
      "noatime"
      "commit=120"
    ];
  };

  fileSystems."/nix/store" = {
    device = "/dev/disk/by-partlabel/NIXOS";
    fsType = "btrfs";
    neededForBoot = true;
    options = [
      "subvol=@nix-store"
      "compress=zstd:1"
      "noatime"
      "commit=120"
    ];
  };

  fileSystems."/nix/persist" = {
    device = "/dev/disk/by-partlabel/NIXOS";
    fsType = "btrfs";
    neededForBoot = true;
    options = [
      "subvol=@nix-persist"
      "compress=zstd:1"
      "noatime"
      "commit=120"
    ];
  };

  # LVM volumes on RAID array
  fileSystems."/var/lib/downloads" = {
    device = "/dev/vg-data/lv-downloads";
    fsType = "xfs";
    options = [ "noatime" ];
  };

  fileSystems."/var/lib/multimedia" = {
    device = "/dev/vg-data/lv-multimedia";
    fsType = "xfs";
    options = [ "noatime" ];
  };

  # DHCP networking
  networking.useDHCP = lib.mkDefault true;

  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
}