{ config, pkgs, ... }:

let
  shell = "${pkgs.dash}/bin/dash";
  riverctl = "${pkgs.river}/bin/riverctl";
  rivertile = "${pkgs.river}/bin/rivertile";
  foot = "${pkgs.foot}/bin/foot";
  seq = "${pkgs.coreutils}/bin/seq";
in {
  home.file.river_init = {
    executable = true;
    target = "${config.xdg.configHome}/river/init";
    text = ''

      # start an instance of foot
      ${riverctl} map normal Super Return spawn ${foot}

      # close the focused view
      ${riverctl} map normal Super+Shift C close

      # exit river
      ${riverctl} map normal Super+Shift Escape exit

      # focus next/previous
      ${riverctl} map normal Super J focus-view next
      ${riverctl} map normal Super K focus-view previous

      # swap next/previous
      ${riverctl} map normal Super+Shift J swap next
      ${riverctl} map normal Super+Shift K swap previous

      # bump focused view to the top of the stack layout
      ${riverctl} map normal Super+Shift Return zoom

      # increase/decrease the main ratio of rivertile
      ${riverctl} map normal Super H send-layout-cmd ${rivertile} "main-ratio -0.05"
      ${riverctl} map normal Super L send-layout-cmd ${rivertile} "main-ratio +0.05"

      # increase/decrease the main count of rivertile
      ${riverctl} map normal Super+Shift H send-layout-cmd ${rivertile} "main-count +1"
      ${riverctl} map normal Super+Shift L send-layout-cmd ${rivertile} "main-count -1"

      # move views
      ${riverctl} map normal Super+Alt H move left 100
      ${riverctl} map normal Super+Alt J move down 100
      ${riverctl} map normal Super+Alt K move up 100
      ${riverctl} map normal Super+Alt L move right 100

      # snap views to screen edges
      ${riverctl} map normal Super+Alt+Control H snap left
      ${riverctl} map normal Super+Alt+Control J snap down
      ${riverctl} map normal Super+Alt+Control K snap up
      ${riverctl} map normal Super+Alt+Control L snap right

      # resize views
      ${riverctl} map normal Super+Alt+Shift H resize horizontal -100
      ${riverctl} map normal Super+Alt+Shift J resize vertical 100
      ${riverctl} map normal Super+Alt+Shift K resize vertical -100
      ${riverctl} map normal Super+Alt+Shift L resize horizontal 100

      # move/resize with mouse
      ${riverctl} map-pointer normal Super BTN_LEFT move-view
      ${riverctl} map-pointer normal Super BTN_RIGHT resize-view

      ${rivertile} -view-padding 6 -outer-padding 6

      for i in $(${seq} 1 9); do
          tags=$((1 << ($i - 1)))

          # focus tag [0-8]
          ${riverctl} map normal Super $i set-focused-tags $tags

          # tag focused view with tag [0-8]
          ${riverctl} map normal Super+Shift $i set-view-tags $tags

          # toggle focus of tag [0-8]
          ${riverctl} map normal Super+Control $i toggle-focused-tags $tags

          # toggle tag [0-8] of focused view
          ${riverctl} map normal Super+Shift+Control $i toggle-view-tags $tags
      done

      all_tags=$(((1 << 32) - 1))
      # focus all tags
      ${riverctl} map normal Super 0 set-focused-tags $all_tags
      # tag focused view with all tags
      ${riverctl} map normal Super+Shift 0 set-view-tags $all_tags

      # toggle float
      ${riverctl} map normal Super T toggle-float

      # toggle fullscreen
      ${riverctl} map normal Super M toggle-fullscreen

      # Super+{Up,Right,Down,Left} to change layout orientation
      ${riverctl} map normal Super Up    send-layout-cmd ${rivertile} "main-location top"
      ${riverctl} map normal Super Right send-layout-cmd ${rivertile} "main-location right"
      ${riverctl} map normal Super Down  send-layout-cmd ${rivertile} "main-location bottom"
      ${riverctl} map normal Super Left  send-layout-cmd ${rivertile} "main-location left"

      # Declare a passthrough mode. This mode has only a single mapping to return to
      # normal mode. This makes it useful for testing a nested wayland compositor
      ${riverctl} declare-mode passthrough

      # Super+F11 to enter passthrough mode
      ${riverctl} map normal Super F11 enter-mode passthrough

      # Super+F11 to return to normal mode
      ${riverctl} map passthrough Super F11 enter-mode normal

      ${riverctl} default-layout rivertile
      ${rivertile} -view-padding 6 -outer-padding 6
    '';
  };
}