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

{
  imports =
    [
      ./hardware-configuration.nix
      /etc/nixos/cachix.nix
    ];
  nix = {
    extraOptions = "experimental-features = nix-command flakes";
    package = pkgs.nixVersions.unstable;
  };
  

  # Use the systemd-boot EFI boot loader.
  boot.kernelPackages = pkgs.linuxPackages_zen;
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;
  boot.initrd.kernelModules = [ "i915" ];

  nixpkgs.config.allowUnfree = true;

  boot.kernelParams = [ "mem_sleep_default=deep" "nvme.noacpi=1" ];
  hardware.cpu.intel.updateMicrocode =
    lib.mkDefault config.hardware.enableRedistributableFirmware;

  hardware.acpilight.enable = lib.mkDefault true;

  networking.hostName = "syl"; # Define your hostname.
  networking.networkmanager.enable = true;
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

  # Set your time zone.
  time.timeZone = "America/Chicago";

  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
  # Per-interface useDHCP will be mandatory in the future, so this generated config
  # replicates the default behaviour.
  networking.useDHCP = false;
  networking.interfaces.wlp170s0.useDHCP = true;

  virtualisation.podman.enable = true;
  # virtualisation.docker.enable = true;
  virtualisation.libvirtd = {
    enable = true;
    qemu = {
      runAsRoot = false;
      ovmf = {
        enable = true;
        packages = [
          pkgs.OVMFFull.fd
          pkgs.pkgsCross.aarch64-multiplatform.OVMF.fd
        ];
      };
      swtpm.enable = true;
    };
  };

  # Select internationalisation properties.
  i18n.defaultLocale = "en_US.UTF-8";

  hardware.uinput.enable = true;

  hardware.bluetooth.enable = true;

  nixpkgs.config.packageOverrides = pkgs: {
    vaapiIntel = pkgs.vaapiIntel.override { enableHybridCodec = true; };
  };

  hardware.opengl = {
    enable = true;
    extraPackages = with pkgs; [
      intel-media-driver # LIBVA_DRIVER_NAME=iHD
      vaapiIntel         # LIBVA_DRIVER_NAME=i965 (older but works better for Firefox/Chromium)
      libvdpau-va-gl
    ];
  };

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

  # This adds hyprland cache to cachix
  nix.settings = {
    substituters = ["https://hyprland.cachix.org"];
    trusted-public-keys = ["hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="];
  };
  
  boot.supportedFilesystems = [ "ntfs" ];
  services.xserver = {
    enable = true;
    autorun = false;
    # windowManager.awesome = {
    #   enable = true;
    #   package = pkgs.awesome;
    # };
    displayManager = {
      startx.enable = true;
      sddm = {
        enable = false;
      };
      session = [
        {
          manage = "desktop";
          name = "Hyprland";
          start = ''
            /home/chris/bin/hyprland &
            waitPID=$!
          '';
        }
      ];
    };
    desktopManager.plasma5 = {
      enable = true;
      runUsingSystemd = true;
    };
    # desktopManager.gnome.enable = true;
  };
  
  services.greetd = {
    enable = true;
    settings = rec {
      initial_session = {
        command = "dbus-run-session startplasma-wayland";
        user = "chris";
      };
      default_session = {
        command = "${pkgs.greetd.tuigreet}/bin/tuigreet --time -r --window-padding 2 --cmd 'dbus-run-session startplasma-wayland'";
        user = "greeter";
      };
      plasma_session = {
        command = "dbus-run-session startplasma-wayland";
        user = "chris";
      };
      hyprland_session = {
        command = "/home/chris/bin/hyprland";
        user = "chris";
      };
    };
  };
  
  environment.etc."greetd/environments".text = ''
      /home/chris/bin/hyprland
      fish
      bash
      dbus-run-session startplasma-wayland
  '';
  
  programs.hyprland = {
    enable = true;
  };
  
  services.avahi = {
    enable = true;
    nssmdns = true;
  };

  # Configure keymap in X11
  services.xserver.layout = "us";
  # services.xserver.xkbOptions = "eurosign:e";

  systemd.services.display-manager = {
    wants = [ "systemd-user-sessions.service" "multi-user.target" "network-online.target" ];
    after = [ "systemd-user-sessions.service" "multi-user.target" "network-online.target" ];
  };

  # Enable CUPS to print documents.
  services.printing.enable = true;
  services.printing.drivers = [ pkgs.gutenprint pkgs.gutenprintBin pkgs.hplipWithPlugin ]; 

  # Enable fingerprint
  services.fprintd.enable = true;
  # programs.qt5ct.enable = true;

  # Enable sound.
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
    wireplumber.enable = true;
  };
  
  # Needed for some pipewire progs and other gtk apps
  programs.dconf.enable = true;

  # Turn on flatpak
  services.flatpak.enable = true;

  # Some other things
  services.thermald.enable = true;
  services.power-profiles-daemon.enable = false;
  services.tlp = {
    enable = true;
    settings = {
      CPU_SCALING_GOVERNOR_ON_AC="performance";
      CPU_SCALING_GOVERNOR_ON_BAT="powersave";
      CPU_ENERGY_PERF_POLICY_ON_AC="balance_performance";
      CPU_ENERGY_PERF_POLICY_ON_BAT="power";
      PCIE_ASPM_ON_AC="default";
      PCIE_ASPM_ON_BAT="powersupersave";
      SCHED_POWERSAVE_ON_AC=0;
      SCHED_POWERSAVE_ON_BAT=1;
      START_CHARGE_THRESH_BAT1=70;
      STOP_CHARGE_THRESH_BAT1=80;
      USB_ALLOWLIST="32ac:0002";
    };
  };

  services.usbmuxd.enable = true;
  services.fstrim.enable = true;

  # Enable touchpad support (enabled default in most desktopManager).
  services.xserver.libinput.enable = true;

  # Set default shell to be dash for speed
  # Apparently this is bad because a lot of nix relies on bash
  # environment.binsh = "${pkgs.dash}/bin/dash";
  
  environment.homeBinInPath = true;
  programs.fish.enable = true;
  programs.zsh.enable = true;

  environment.variables = {
      EDITOR = "emacsclient -t -a";
      VISUAL = "emacsclient -c -a";
      # Fixing Qt apps in other environments
      # Thought I needed this but apparently they are working fine without it.
      # QT_XCB_GL_INTEGRATION = "xcb_egl";
      # QT_QPA_PLATFORM_PLUGIN_PATH = "${pkgs.qt5.qtbase.bin}/lib/qt-${pkgs.qt5.qtbase.qtCompatVersion}/plugins/platforms";
    VDPAU_DRIVER = lib.mkIf config.hardware.opengl.enable (lib.mkDefault "va_gl");
    # QT_QPA_PLATFORMTHEME = "qt5ct";
    # QT_WAYLAND_DISABLE_WINDOWDECORATION = "1";
    # QT_QPA_PLATFORM = "wayland;xcb";
    # QT_AUTO_SCREEN_SCALE_FACTOR = "1";
  };

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.chris = {
    isNormalUser = true;
    extraGroups = [ "adbusers" "wheel" "networkmanager" "input" "uinput" ];
  };

  programs.adb.enable = true;
  services.udev.packages = [ pkgs.android-udev-rules ];

  programs.partition-manager.enable = true;
  programs.kdeconnect.enable = true;

  security.pam.services.kwallet = {
    name = "kwallet";
    enableKwallet = true;
  };
  security.pam.services.sddm.enableKwallet = true;

  # virtualisation.waydroid.enable = true;

  # nixpkgs.config.firefox.enableTridactyl = true;

  import ../../pkgs/base-packges.nix;
  import ../../pkgs/desktop-packges.nix;

  services.emacs = {
    enable = true;
    package = with pkgs; ((emacsPackagesFor emacsPgtk).emacsWithPackages 
      (epkgs: with epkgs; [
        vterm
        magit
        pdf-tools
        consult-eglot
        org
        org-roam
        command-log-mode
        all-the-icons
        doom-modeline
        doom-themes
        rainbow-delimiters
        smartparens
        aggressive-indent
        adaptive-wrap
        which-key
        exec-path-from-shell
        no-littering
        tree-sitter
        tree-sitter-langs
        rustic
        evil
        evil-collection
        general
        evil-escape
        evil-surround
        evil-org
        org-super-agenda
        websocket
        org-roam-ui
        org-present
        org-modern
        org-re-reveal
        org-re-reveal-ref
        org-re-reveal-citeproc
        ox-reveal
        oer-reveal
        ox-spectacle
        unicode-fonts
        emojify
        undo-tree
        visual-fill-column
        toc-org
        pulsar
        vertico
        consult
        marginalia
        all-the-icons-completion
        embark
        embark-consult
        corfu
        orderless
        cape
        devdocs
        yasnippet
        tempel
        projectile
        simple-httpd
        avy
        evil-avy
        ace-link
        ace-window
        helpful
        format-all
        web-mode
        lua-mode
        nix-mode
        cmake-mode
        fennel-mode
        yaml-mode
        docker
        docker-tramp
        fish-mode
        markdown-mode
        qml-mode
        csv-mode
        restclient
        ob-restclient
        dart-mode
        flutter
        hover
        direnv
        all-the-icons-dired
        dired-single
        dired-rainbow
        diredfl
        dired-rsync
        fd-dired
        ledger-mode
        org-msg
        calfw
        calfw-org
        calfw-ical
        org-caldav
        org-wild-notifier
        magit
        sly
        nov
        elfeed
        elfeed-org
        bongo
        emms
        transmission
        hass
        pass
        password-store
        password-store-otp
        plz
        ement
        mastodon
        qrencode
        gcmh
        use-package
        esh-autosuggest
        pkgs.mu
      ]));
    defaultEditor = true;
  };
  services.samba-wsdd.enable = true;
  services.samba = {
    enable = true;
    extraConfig = ''
        workgroup = WORKGROUP                                     
        server string = smbnix
        netbios name = smbnix
        security = user 
        #use sendfile = yes
        #max protocol = smb2
        # note: localhost is the ipv6 localhost ::1
        hosts allow = 192.168.0. 127.0.0.1 localhost
        hosts deny = 0.0.0.0/0
        guest account = nobody
        map to guest = bad user
    '';
    shares = {
      public = {
        path = "/home/chris/Public";
        "read only" = false;
        browsable = true;
        "guest ok" = true;
        comment = "Share";
      };
    };
  };

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  # programs.mtr.enable = true;
  # programs.gnupg.agent = {
  #   enable = true;
  #   enableSSHSupport = true;
  # };

  # List services that you want to enable:

  services.locate = {
    enable = true;
    locate = pkgs.plocate;
    localuser = null;
    interval = "hourly";
    prunePaths = [ "/tmp" "/nix/store" "/nix/var/log/nix" "/etc" "/bin" "/boot" "/usr" "/var" "/run" "/srv" "/sys" "/root" "/proc" "/opt" "/dev" "/home/chris/.emacs.d" "/home/chris/.config" "/home/chris/.nix-profile" "/home/chris/.profile" "/home/chris/dev/nixpkgs" "/home/chris/.cache" "/home/chris/.local" "/home/chris/.dotemacs" "/home/chris/.cargo" "/home/chris/.mozilla" "/home/chris/.var" "/home/chris/.dotfiles" "/home/chris/.dbus" "/home/chris/.android" "/var/lib"];
  };

  # Enable the OpenSSH daemon.
  services.openssh.enable = true;

  # Open ports in the firewall.
  # networking.firewall.allowedTCPPorts = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = false;

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "21.11"; # Did you read the comment?

}