#!/usr/bin/env bash
# rice-keys - searchable cheat sheet of every keybinding, read from sxhkdrc.
# A "## Section" line groups bindings; a "# text" line right above a hotkey
# describes it.
set -uo pipefail

rc="${XDG_CONFIG_HOME:-$HOME/.config}/sxhkd/sxhkdrc"
dim=$(rice-theme get dim)
accent=$(rice-theme get accent)

pretty() {
  sed -E 's/@//g; s/\{_,/{/g; s/\b(super|ctrl|shift|alt)\b/\u\1/g; s/XF86Audio/Media /g; s/Print/PrtSc/g'
}
escape() { sed 's/&/\&amp;/g; s/</\&lt;/g; s/>/\&gt;/g'; }

awk '
  /^## /                 { section = substr($0, 4); next }
  /^# /                  { desc = substr($0, 3); next }
  /^$/                   { desc = ""; next }
  /^[^#[:space:]]/ && desc != "" { printf "%s\t%s\t%s\n", section, $0, desc; desc = "" }
' "$rc" |
  while IFS=$'\t' read -r section keys desc; do
    printf '<span foreground="%s">%-30s</span>  %s  <span foreground="%s">· %s</span>\n' \
      "$accent" "$(pretty <<<"$keys" | escape)" "$(escape <<<"$desc")" "$dim" "$(escape <<<"$section")"
  done |
  rofi -dmenu -i -markup-rows -no-custom -theme "$HOME/.config/rofi/menu.rasi" -p "Keybindings" \
    -theme-str 'window { width: 900px; } listview { lines: 16; }' >/dev/null