#!/bin/sh
# nosignal-keybinds — searchable on-screen keybinding cheatsheet for NoSignal.
# The keymap is NOT stored here: it is generated from the markdown doc by
# nosignal-keybinds-gen on every launch, so the cheatsheet can never drift from
# ~/Downloads/NoSignal-keybindings.md. The generated list is cached so the help
# still works if the markdown is temporarily missing.
#
# Read-only: typing filters the list; selecting a line copies that shortcut to
# the clipboard (if wl-copy is present) and never executes anything.
#
# --width 100 must stay in sync with the generator's $NOSIGNAL_KEYS_COLS default
# (98 = 100 minus margin) — the generator truncates actions to that budget so
# every line fits the panel.
set -u

DATA_DIR="$HOME/.local/share/nosignal"
LIST="$DATA_DIR/keybinds.list"
mkdir -p "$DATA_DIR"

# Find the generator next to this script (no PATH dependency), else fall back.
SELF_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
GEN="$SELF_DIR/nosignal-keybinds-gen"
[ -x "$GEN" ] || GEN="nosignal-keybinds-gen"

# Regenerate from the markdown when available; otherwise keep the cached list.
if "$GEN" > "$LIST.tmp" 2>/dev/null && [ -s "$LIST.tmp" ]; then
  mv "$LIST.tmp" "$LIST"
else
  rm -f "$LIST.tmp"
fi

if [ ! -s "$LIST" ]; then
  command -v notify-send >/dev/null 2>&1 &&
    notify-send -u critical "NoSignal keys" "Cheatsheet unavailable — keymap markdown not found."
  exit 1
fi

selection=$(fuzzel --dmenu \
  --prompt "keys> " \
  --width 100 \
  --lines 20 \
  --no-icons < "$LIST" 2>/dev/null)

if [ -n "${selection:-}" ] && command -v wl-copy >/dev/null 2>&1; then
  printf '%s' "$selection" | wl-copy
fi