{ config, lib, pkgs, modulesPath, ... }:

let
  flake-compat = builtins.fetchTarball "https://github.com/edolstra/flake-compat/archive/master.tar.gz";

  hyprland = (import flake-compat {
    src = builtins.fetchTarball "https://github.com/hyprwm/Hyprland/archive/master.tar.gz";
  }).defaultNix;
in {  

  nixpkgs.overlays = [
    (self: super: {
      system76-scheduler = pkgs.callPackage ./syspkgs/system76-scheduler.nix {};
      kwin-system76-scheduler-integration = pkgs.libsForQt5.callPackage ./syspkgs/kwin-system76-scheduler-integration.nix {};
    })
  ];

  nix.settings = {
    substituters = [ "https://hyprland.cachix.org" ];
    trusted-public-keys = ["hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="];
  };

  imports =
    [ hyprland.nixosModules.default ];

  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "usbcore" "sd_mod" ];
  boot.initrd.kernelModules = [ ];
  boot.kernelModules = [ "kvm-amd" "i2c-dev" ];
  boot.extraModulePackages = [ ];
  boot.kernelParams = [ "nvidia_drm.modeset=1" "mitigations=off" "acpi_enforce_resources=lax" "preempt=full" ];

  boot.loader.efi.canTouchEfiVariables = true;
  # boot.plymouth.enable = true;
  
  boot.supportedFilesystems = [ "ntfs" ];

  security.tpm2.enable = true;

  networking.useDHCP = lib.mkDefault true;

  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;

  environment.sessionVariables = rec {
    WLR_NO_HARDWARE_CURSORS = "1";
    GBM_BACKEND = "nvidia-drm";
    NVD_BACKEND = "direct";
    __GLX_VENDOR_LIBRARY_NAME = "nvidia";
    LIBVA_DRIVER_NAME = "nvidia";
    __GL_GSYNC_ALLOWED = "1";
    __GL_VRR_ALLOWED = "1";
    EDITOR = "hx";
  };

  virtualisation = {
    podman = {
      enable = true;
      dockerCompat = true;
      defaultNetwork.settings.dns_enabled = true;
    };
  };

  services.minidlna = {
    enable = true;
    settings = {
      notify_interval = 120;
      friendly_name = "PC";
      media_dir = [ "A,/data/Music/Slsk" ];
    };
  };

  # programs.hyprland = {
  #   enable = true;
  #   xwayland = {
  #     enable = true;
  #     hidpi = false;
  #   };
  #   nvidiaPatches = true;
  # };

  services.xserver.videoDrivers = [ "nvidia" ];
  hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.stable;
  hardware.nvidia.modesetting.enable = true;
  hardware.nvidia.powerManagement.enable = true;
  programs.xwayland.enable = true;
  
  systemd.services.no-rgb = {
    wantedBy = [ "multi-user.target" ];
    description = "rgb led turn-off-er";
    serviceConfig = {
      Type = "oneshot";
      ExecStart = ''${pkgs.openrgb}/bin/openrgb -d "HyperX Fury RGB" -m static -c 000000'';
    };
  };

  systemd.services."com.system76.Scheduler" = {
    wantedBy = [ "multi-user.target" ];
    description = "the system76 process scheduler";
    serviceConfig = {
      Type = "dbus";
      ExecStart = ''${pkgs.system76-scheduler}/bin/system76-scheduler daemon'';
      ExecReload = ''${pkgs.system76-scheduler}/bin/system76-scheduler daemon reload'';
      BusName = "com.system76.Scheduler";
    };
  };

  services.dbus.packages = [
    pkgs.kwin-system76-scheduler-integration
    pkgs.system76-scheduler
  ];

  systemd.packages = [
    pkgs.kwin-system76-scheduler-integration
    pkgs.system76-scheduler
  ];

  environment.etc = {
    "system76-scheduler".source = "${pkgs.system76-scheduler}/etc/system76-scheduler";
  };

  services.hardware.openrgb = {
    enable = true;
    motherboard = "amd";
  };
  
  hardware.ckb-next.enable = true;  

  xdg.portal = {
    enable = true;
    wlr = {
      enable = true;
      # settings = {
      #   screencast = {
      #     output_name = "DP-1";
      #     max_fps = 60;
      #     chooser_type = "simple";
      #     chooser_nvidia = "${pkgs.slurp}/bin/slurp -f %o -or";
      #   };
      # };
    };
    extraPortals = with pkgs; [
      xdg-desktop-portal-gtk
    ];
  };
  
  environment.systemPackages = with pkgs; 
    [
      ckb-next
      openrgb
      wl-clipboard
      wl-clipboard-x11
      xclip
      system76-scheduler
      kwin-system76-scheduler-integration
    ];

  networking.hostName = "quiver"; # Define your hostname.
  users.users.bolt = {
    isNormalUser = true;
    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
  };

  fileSystems."/" =
    { device = "/dev/disk/by-uuid/d227445f-6120-4768-8e1b-011f097505c1";
      fsType = "ext4";
    };

  fileSystems."/boot" =
    { device = "/dev/disk/by-uuid/6B75-AF9F";
      fsType = "vfat";
    };

  fileSystems."/data" = {
    device = "/dev/disk/by-uuid/39D4F78C658E8B56";
    fsType = "ntfs";
    options = [ "rw" "uid=1000" "gid=100" ];
  };
  
  # swapDevices = [ {
  #   device = "/dev/disk/by-uuid/7fde28ec-80f9-4228-8597-c3a57bfbf619";
  #   size = 4096;
  #   }
  # ];

  networking.firewall = {
    allowedUDPPorts = [ 1900 ];
    allowedTCPPorts = [ 8200 2234 ];
  };

}