nixos-config/components/terminal/wtf.nix

{ pkgs, config, lib, ... }:
with lib;
let

  networkStatus =
    let

      q-online = ''
        if ${pkgs.curl}/bin/curl -s google.com >/dev/null; then
          echo 'status: online'
        else
          echo 'status: offline '
        fi
      '';

      q-wireless = ''
        for dev in $(
          ${pkgs.iw}/bin/iw dev \
            | ${pkgs.gnused}/bin/sed -n 's/^\s*Interface\s\+\([0-9a-z]\+\)$/\1/p'
        ); do
          inet=$(${pkgs.iproute}/bin/ip addr show $dev \
            | ${pkgs.gnused}/bin/sed -n 's/.*inet \([0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+\).*/\1/p') \
            || unset inet
          ssid=$(${pkgs.iw}/bin/iw dev $dev link \
            | ${pkgs.gnused}/bin/sed -n 's/.*\tSSID: \(.*\)/\1/p' \
            | ${pkgs.coreutils}/bin/tr -d '\r') \
            || unset ssid
          printf '%s: %s %s\n' $dev ''${inet+ $inet} ''${ssid+ $ssid}
        done
      '';

    in
    pkgs.writers.writeBash "network-status" ''
      ${q-wireless}
      ${q-online}
      ${pkgs.coreutils}/bin/uptime
    '';

  taskNextWeek = pkgs.writers.writeDash "taskweek" ''
    ${pkgs.taskwarrior}/bin/task \
                        export "(due.before:today+7days and due.after:today)" \
        | ${pkgs.jq}/bin/jq '[.[] | { Day: .due, ID: .id, Description: .description | sub("\n.*";"")} ] | sort_by(.Day)' \
        | ${pkgs.miller}/bin/mlr --ijson --opprint put '$Day = strftime(strptime($Day,"%Y%m%dT%H%M%SZ")'$(date +%z)'00,"%a")'
  '';

  activeTasks = pkgs.writers.writeBash "active-tasks" ''
    ${pkgs.taskwarrior}/bin/task export status:pending and "( +ACTIVE or +DUETODAY or +TODAY or +OVERDUE )" | \
    ${pkgs.jq}/bin/jq  \
      --raw-output '
      sort_by(.description) | reverse |
      .[] |
      "[ \( .id ) ] \( .description )"
    '
    echo
  '';

  userHighlight = map ({ user, ... }: user)
    (builtins.attrValues config.services.browser.configList)
  ++ [ "steam" ];

  activeUsers = pkgs.writers.writeBash "active-users" ''
    ${pkgs.procps}/bin/ps -eo user \
     | ${pkgs.gnused}/bin/sed '1 d' \
     | ${pkgs.coreutils}/bin/sort  \
     | ${pkgs.coreutils}/bin/uniq \
     | ${pkgs.gnugrep}/bin/egrep --color=always '(${
       pkgs.lib.concatStringsSep "|" userHighlight
     })|$'
  '';

  # default settings
  wtfModule =
    args@{ height ? 1, width ? 1, top, left, enabled ? true, type, ... }:
    {
      enabled = enabled;
      focusable = false;
      position.top = top;
      position.left = left;
      position.height = height;
      position.width = width;
    } // (lib.filterAttrs
      (key: _: lib.all (x: x != key) [ "height" "width" "top" "left" ])
      args);

  # command runner module
  cmdRunner = args@{ cmd, ... }:
    wtfModule ({
      type = "cmdrunner";
      focusable = false;
      refreshInterval = 300;
    } // args);

  modules = {
    inherit cmdRunner;

    digitalclock = args@{ top, left, ... }:
      cmdRunner ({
        cmd = pkgs.writers.writeDash "clock" ''
          ${pkgs.toilet}/bin/toilet --font future `${pkgs.coreutils}/bin/date +"%a %H:%M"`
          ${pkgs.coreutils}/bin/date +"%B %d %Y"
        '';
        title = "";
        refreshInterval = 30;
      } // args);

    clocks = args@{ top, left, ... }:
      wtfModule ({
        type = "clocks";
        title = "";
        border = false;
        colors.rows = {
          even = "white";
          odd = "white";
        };
        locations = {
          UTC = "Etc/UTC";
          Berlin = "Europe/Berlin";
          Cuba = "America/Havana";
          Wellington = "Pacific/Auckland";
        };
        sort = "alphabetical";
        refreshInterval = 60;
      } // args);

    resourceusage = args@{ top, left, ... }:
      wtfModule ({
        type = "resourceusage";
        title = "";
        cpuCombined = false;
        refreshInterval = 5;
      } // args);

    power = args@{ top, left, ... }:
      wtfModule ({
        type = "power";
        title = "";
        refreshInterval = 100;
      } // args);

    prettyweather = args@{ top, left, ... }:
      wtfModule ({
        type = "prettyweather";
        title = "";
        city = "Essen";
        unit = "m";
        view = 0;
        language = "en";
        refreshInterval = 3600;
      } // args);

    feedreader = args@{ top, left, feeds, ... }:
      wtfModule ({
        type = "feedreader";
        title = "";
        refreshInterval = 3600;
        focusable = true;
        #feedLimit = 10;
        colors.rows = {
          even = "white";
          odd = "white";
        };
      } // args);

    github = args@{ top, left, username, apiKey, ... }:
      wtfModule ({
        type = "github";
        title = "";
        refreshInterval = 3600;
        feedlimit = 10;

        enableStatus = true;
        #  customQueries:
        #    othersPRs:
        #      title: "Others Pull Requests"
        #      filter: "is:open is:pr -author:wtfutil"
        #  repositories:
        #    - "wtfutil/wtf"
        #    - "wtfutil/docs"
        #    - "umbrella-corp/wesker-api"
      } // args);

  };

  newsJson = {
    wtf = {
      term = "rxvt-unicode-256color";
      colors.border = {
        focusable = "darkslateblue";
        focused = "orange";
        normal = "green";
      };
      grid = {
        columns = [ 28 0 0 ];
        rows = [ 9 9 9 9 9 9 0 ];
      };
      refreshInterval = 1;
      mods = with modules; {

        clock = digitalclock {
          top = 0;
          left = 0;
        };
        weather = prettyweather {
          top = 1;
          left = 0;
        };

        # feeds
        hackernews = feedreader {
          title = "Hacker News";
          top = 0;
          left = 1;
          height = 3;
          feeds = [ "https://news.ycombinator.com/rss" ];
        };
        lopster = feedreader {
          title = "Lopsters";
          top = 0;
          left = 2;
          height = 3;
          feeds = [ "https://lobste.rs/rss" ];
        };

        hackernews_tools = feedreader {
          title = "Hacker News Tools";
          top = 4;
          left = 1;
          height = 1;
          feeds =
            [ "https://latesthackingnews.com/category/hacking-tools/feed/" ];
        };
        nixos = feedreader {
          title = "NixOS Weekly";
          top = 3;
          left = 1;
          height = 1;
          feeds = [ "https://weekly.nixos.org/feeds/all.rss.xml" ];
        };
        taskwarrior = feedreader {
          title = "Taskwarrior";
          top = 3;
          left = 2;
          height = 1;
          feeds = [ "https://taskwarrior.org/feed.rss" ];
        };

        #github = github {
        #  username = "mrVanDalo";
        #  apiKey = "";
        #  repositories = [
        #    "nixos/nixpkgs"
        #  ];
        #};
      };
    };
  };

  qJson = {
    wtf = {
      term = "rxvt-unicode-256color";
      colors.border = {
        focusable = "darkslateblue";
        focused = "orange";
        normal = "green";
      };
      grid = {
        columns = [ 33 12 28 36 0 ];
        rows = [ 9 4 6 6 0 ];
      };
      refreshInterval = 1;
      mods = with modules; {

        digitalclock = digitalclock {
          top = 0;
          left = 0;
        };

        clocks = clocks {
          top = 1;
          left = 0;
        };

        top = resourceusage {
          top = 0;
          left = 1;
          width = 2;
        };

        power = power {
          top = 2;
          left = 0;
        };

        rates = wtfModule {
          type = "yfinance";
          top = 3;
          left = 0;
          title = "rates";
          symbols = [ "EURUSD=X" "EURNZD=X" ];
          refreshInterval = 60;
        };

        weather = prettyweather {
          top = 0;
          left = 3;
        };

        calendar = cmdRunner {
          title = "";
          args = [ "-3" "--monday" "--color=never" "-w" ];
          cmd = "cal";
          top = 1;
          left = 1;
          height = 2;
          width = 3;
          refreshInterval = 3600;
        };

        active-users = cmdRunner {
          title = "users";
          cmd = activeUsers;
          top = 0;
          left = 4;
          height = 4;
          width = 1;
          refreshInterval = 30;
        };

        #active-tasks = cmdRunner {
        #  title = "active tasks";
        #  cmd = activeTasks;
        #  top = 4;
        #  left = 2;
        #  height = 1;
        #  width = 3;
        #  refreshInterval = 60;
        #};

        #next-week-tasks = cmdRunner {
        #  title = "upcoming";
        #  cmd = taskNextWeek;
        #  top = 4;
        #  left = 0;
        #  height = 1;
        #  width = 2;
        #  refreshInterval = 60;
        #};

        network-status = cmdRunner {
          title = "network status";
          cmd = networkStatus;
          top = 3;
          left = 1;
          height = 1;
          width = 3;
          refreshInterval = 7;
        };

        uptime = cmdRunner {
          enabled = false;
          title = "uptime";
          cmd = "uptime";
          top = 3;
          left = 1;
          height = 1;
          width = 3;
        };
      };
    };
  };

  createDashboard = { json, name }:
    let configuration = pkgs.writeText "config.yml" (builtins.toJSON json);
    in pkgs.writers.writeBashBin name ''
      ${pkgs.wtf}/bin/wtfutil --config=${toString configuration}
    '';

in

{
  options.components.terminal.wtf.enable = mkOption {
    type = lib.types.bool;
    default = config.components.terminal.enable;
  };
  config = mkIf (config.components.terminal.wtf.enable) {

    services.upower.enable = true;

    environment.systemPackages = [
      pkgs.wtf
      (createDashboard {
        json = qJson;
        name = "q";
      })
      (createDashboard {
        json = newsJson;
        name = "news";
      })
      #activeUsers
      #activeTasks
      pkgs.upower
    ];

  };
}