#!/bin/sh
# pconfine-auto on|off — single-instance control of the pointer-confine
# daemon, called by dwm's setfullscreen()/unmanage() hooks and the Mod+Shift+p
# panic key. `on` locks the cursor to the current monitor; `off` releases it.
set -u
case "${1:-}" in
    on)
        # start only if not already running, and only if the helper exists
        pgrep -x pointer-confine >/dev/null 2>&1 && exit 0
        command -v pointer-confine >/dev/null 2>&1 || exit 0
        setsid pointer-confine >/dev/null 2>&1 &   # new session: outlives the hook
        ;;
    off)
        pkill -x pointer-confine 2>/dev/null || true
        ;;
    *)
        echo "usage: ${0##*/} on|off" >&2
        exit 1
        ;;
esac