# Do not modify this file!  It was generated by ‘nixos-generate-config’
# and may be overwritten by future invocations.  Please make changes
# to /etc/nixos/configuration.nix instead.
{ config, lib, pkgs, modulesPath, ... }:

{
  imports =
    [ (modulesPath + "/installer/scan/not-detected.nix")
    ];

  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
  boot.initrd.kernelModules = [ ];
  boot.kernelModules = [ "kvm-amd" ];
  boot.extraModulePackages = [ ];
  boot.initrd.postDeviceCommands = lib.mkAfter ''
    mkdir /btrfs_tmp
    mount /dev/nvme0n1p2 /btrfs_tmp
    if [[ -e /btrfs_tmp/root ]]; then
        mkdir -p /btrfs_tmp/old_roots
        timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
        mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
    fi

    delete_subvolume_recursively() {
        IFS=$'\n'
        for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
            delete_subvolume_recursively "/btrfs_tmp/$i"
        done
        btrfs subvolume delete "$1"
    }

    for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
        delete_subvolume_recursively "$i"
    done

    btrfs subvolume create /btrfs_tmp/root
    umount /btrfs_tmp
  '';

  fileSystems."/" =
    { device = "/dev/disk/by-uuid/8e515c16-703a-43ea-8653-ec0f739ba532";
      fsType = "btrfs";
      options = [ "subvol=root" "compress=zstd" "noatime" ];
    };

  fileSystems."/home" =
    { device = "/dev/disk/by-uuid/8e515c16-703a-43ea-8653-ec0f739ba532";
      fsType = "btrfs";
      options = [ "subvol=home" "compress=zstd" "noatime" ];
    };

  fileSystems."/nix" =
    { device = "/dev/disk/by-uuid/8e515c16-703a-43ea-8653-ec0f739ba532";
      fsType = "btrfs";
      options = [ "subvol=nix" "compress=zstd" "noatime" ];
    };

  fileSystems."/var/log" =
    { device = "/dev/disk/by-uuid/8e515c16-703a-43ea-8653-ec0f739ba532";
      fsType = "btrfs";
      options = [ "subvol=log" "compress=zstd" "noatime" ];
      neededForBoot = true;
    };

  fileSystems."/boot" =
    { device = "/dev/disk/by-uuid/A925-0013";
      fsType = "vfat";
    };

  fileSystems."/media/vault" = 
    { device = "/dev/disk/by-uuid/048d175b-0e3e-4ec7-955b-3d9a45f9f237";
      fsType = "xfs";
    };

  fileSystems."/media/attic" = 
    { device = "/dev/disk/by-uuid/ec32ce36-9f53-4f44-ac8f-2c9163f0b3d7";
      fsType = "xfs";
    };

  swapDevices = [ ];

  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
  # (the default) this is the recommended approach. When using systemd-networkd it's
  # still possible to use this option, but it's recommended to use it in conjunction
  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
  networking.useDHCP = lib.mkDefault true;
  # networking.interfaces.enp34s0.useDHCP = lib.mkDefault true;

  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
}