# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }:

let
  home-manager = builtins.fetchTarball https://github.com/nix-community/home-manager/archive/release-26.05.tar.gz;
in
{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
      (import "${home-manager}/nixos")
    ];

  # Bootloader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

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

  # Configure network proxy if necessary
  # networking.proxy.default = "http://user:password@proxy:port/";
  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";

  # Enable networking
  networking.networkmanager.enable = true;

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

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

  i18n.extraLocaleSettings = {
    LC_ADDRESS = "en_US.UTF-8";
    LC_IDENTIFICATION = "en_US.UTF-8";
    LC_MEASUREMENT = "en_US.UTF-8";
    LC_MONETARY = "en_US.UTF-8";
    LC_NAME = "en_US.UTF-8";
    LC_NUMERIC = "en_US.UTF-8";
    LC_PAPER = "en_US.UTF-8";
    LC_TELEPHONE = "en_US.UTF-8";
    LC_TIME = "en_US.UTF-8";
  };

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users."sam" = {
    isNormalUser = true;
    description = "Sam Cohen";
    extraGroups = [ "networkmanager" "wheel" "video" ];
    packages = with pkgs; [];
  };

  # Necessary for sway
  security.polkit.enable = true;

  # Keyring for wayland applications
  services.gnome.gnome-keyring.enable = true;
  security.pam.services = {
    greetd.enableGnomeKeyring = true;
  };

  # Launches sway on login
  services.greetd = {
    enable = true;
    settings = {
      default_session = {
        command = "${pkgs.tuigreet}/bin/tuigreet --time --cmd sway";
        user = "greeter";
      };
    };
  };

  # Fonts
  fonts.packages = with pkgs; [
    nerd-fonts.aurulent-sans-mono
  ];

  home-manager.users."sam" = { config, pkgs, lib, ... }:
    let
      # Permits adjustment of display brightness
      brightnessctl = "${pkgs.brightnessctl}/bin/brightnessctl";
      # Permits adjustment of audio volume via pactl
      pactl = "${pkgs.pulseaudio}/bin/pactl";
    in {
      home.packages = with pkgs; [
        kdePackages.falkon

        # For keeping track of passwords:
        pass

        # For reading mail:
        mu

        # For syncing with mail servers:
        isync
        # For sending email:
        msmtp
        # For communicating with exchange servers. See below, usually
        # we will start this program as a systemd service.
        davmail
      ];

      programs.bash = {
        enable = true;
        bashrcExtra = "eval \"$(direnv hook bash)\"";
      };

      programs.git = {
        enable = true;
        signing = {
          key = "E2FE54A52DF79398";
          format = "openpgp";
          signByDefault = true;
        };
        settings = {
          init.defaultBranch = "main";
          user.useConfigOnly = true;
          user.name = "Sam Cohen";
          user.email = "sbcohen2000@gmail.com";
        };
      };

      ## GPG ##########

      programs.gpg = {
        enable = true;
      };
      services.gpg-agent = {
        enable = true;
        pinentry.package = pkgs.pinentry-qt;
      };

      ## Sway/GUI ##########

      programs.kitty = {
        enable = true;
        themeFile = "AtomOneLight";
        font.name = "AurulentSansM Nerd Font";
        font.size = 10;
      };

      services.emacs.enable = true;
      programs.emacs = {
        enable = true;
      };
      home.sessionVariables = {
        # Put the location of mu4e on the path so that emacs can find
        # it later.
        MU4E = "${pkgs.mu.mu4e}";
      };

      wayland.windowManager.sway = {
        enable = true;
        wrapperFeatures.gtk = true; # Fixes common issues with gtk3 apps
        checkConfig = true;
        config = rec {
          terminal = "kitty";
          startup = [
            # Launch emacs on start
            { command = "emacsclient -c"; }
          ];
          modifier = "Mod4";
	        keybindings = {
            # Navigation
            "${modifier}+0" = "workspace number 10";
            "${modifier}+1" = "workspace number 1";
            "${modifier}+2" = "workspace number 2";
            "${modifier}+3" = "workspace number 3";
            "${modifier}+4" = "workspace number 4";
            "${modifier}+5" = "workspace number 5";
            "${modifier}+6" = "workspace number 6";
            "${modifier}+7" = "workspace number 7";
            "${modifier}+8" = "workspace number 8";
            "${modifier}+9" = "workspace number 9";
            "${modifier}+Shift+0" = "move container to workspace number 10";
            "${modifier}+Shift+1" = "move container to workspace number 1";
            "${modifier}+Shift+2" = "move container to workspace number 2";
            "${modifier}+Shift+3" = "move container to workspace number 3";
            "${modifier}+Shift+4" = "move container to workspace number 4";
            "${modifier}+Shift+5" = "move container to workspace number 5";
            "${modifier}+Shift+6" = "move container to workspace number 6";
            "${modifier}+Shift+7" = "move container to workspace number 7";
            "${modifier}+Shift+8" = "move container to workspace number 8";
            "${modifier}+Shift+9" = "move container to workspace number 9";
            "${modifier}+Left" = "focus left";
            "${modifier}+Right" = "focus right";
            "${modifier}+Up" = "focus up";
            "${modifier}+Down" = "focus down";
            "${modifier}+Shift+Left" = "move left";
            "${modifier}+Shift+Right" = "move right";
            "${modifier}+Shift+Up" = "move up";
            "${modifier}+Shift+Down" = "move down";

            "${modifier}+q" = "kill";
            "${modifier}+a" = "focus parent";
            "${modifier}+f" = "fullscreen toggle";
            "${modifier}+space" = "layout toggle split";
            "${modifier}+Shift+space" = "floating toggle";

	          # Brightness Controls
	          "XF86MonBrightnessDown" = "exec ${brightnessctl} s 10%-";
            "XF86MonBrightnessUp" = "exec ${brightnessctl} s +10%";

            # Volume Controls
            "XF86AudioRaiseVolume" = "exec ${pactl} set-sink-volume @DEFAULT_SINK@ +5%";
            "XF86AudioLowerVolume" = "exec ${pactl} set-sink-volume @DEFAULT_SINK@ -5%";
            "XF86AudioMute" = "exec ${pactl} set-sink-mute @DEFAULT_SINK@ toggle";

            # Launching
            "${modifier}+Return" = "exec kitty";
            "${modifier}+e" = "exec emacsclient -c";
            "${modifier}+b" = "exec falkon";
	        };
	        input = {
	          "type:keyboard" = {
	            xkb_options = "ctrl:nocaps";
	            repeat_delay = "250";
	            repeat_rate = "30";
	          };
	          "type:touchpad" = {
	            tap = "enabled";
	            # Prevent an odd feature where after tapping you can drag
	            # the mouse to create a selection.
	            drag = "disabled";
	            drag_lock = "disabled";

              # Change scroll direction.
	            natural_scroll = "enabled";

              # Disable trackpad while typing.
	            dwt = "enabled";
	          };
	        };
        };
      };

      # Turns off the display, then suspends the computer after a period
      # of inactivity.
      services.swayidle = {
        enable = true;
        timeouts = [
          {
            timeout = 1 * 60;
            command = "${brightnessctl} -s s 5%"; # Set the brightness, saving the old value to a tmpfile.
            resumeCommand = "${brightnessctl} -r"; # Restore the previous brightness.
          }
	        {
	          timeout = 5 * 60;
	          command = "${pkgs.systemd}/bin/systemctl suspend";
	        }
        ];
        events = {
          "after-resume" = "${brightnessctl} -r"; # Restore the previous brightness.;
        };
      };

      ## Mail ##########

      # We use a davmail server to proxy Exchange mail servers as
      # local SMTP/IMAP servers.
      systemd.user.services.davmail = {
        Unit = {
          Description = "Proxy Exchange servers through local SMTP/IMAP.";
        };
        Install = {
          WantedBy = [ "default.target" ];
        };
        Service = {
          ExecStart = "${pkgs.davmail}/bin/davmail ${config.home.homeDirectory}/.davmail.properties";
        };
      };

      # Restart user services when we perform a configuration switch.
      systemd.user.startServices = "sd-switch";

      home.stateVersion = "26.05";
    };

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    pkgs.direnv
  ];

  # 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:

  # 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 = "26.05"; # Did you read the comment?
}