#!/bin/sh
# fuzzel --dmenu, backed by the Takemi launcher in Quickshell.
#
# Reads choices on stdin, prints the chosen line on stdout, prints nothing if
# the launcher was dismissed. Accepts the handful of fuzzel flags the callers
# in this config actually pass so they did not have to be rewritten.
#
# The launcher lives in the already-running shell process, so unlike fuzzel
# there is nothing to start; the cost here is the two-file handshake, which
# exists because `qs ipc call` returns immediately and a dmenu has to block.
set -eu

prompt=""
while [ $# -gt 0 ]; do
    case "$1" in
        --dmenu|-d) ;;
        --prompt) prompt="${2-}"; shift ;;
        --prompt=*) prompt="${1#--prompt=}" ;;
        *) ;;
    esac
    shift
done

dir=$(mktemp -d)
trap 'rm -rf "$dir"' EXIT INT TERM
cat > "$dir/in"

qs ipc call shell dmenu "$dir/in" "$dir/out" "$prompt" >/dev/null

# Give up after two minutes rather than wedging a caller forever if the shell
# is reloaded out from under us mid-choice.
i=0
while [ ! -e "$dir/out" ]; do
    i=$((i + 1))
    [ "$i" -gt 2400 ] && exit 1
    sleep 0.05
done

cat "$dir/out"