Dotfiles/desktopenvs/niri/scripts/caffeine.sh

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#!/bin/bash
# Toggle idle inhibit via systemd-inhibit (swayidle respects the logind idle hint).
# This lock is shared with presence-detect.sh, which also inhibits idle while
# motion is detected — OWNED_FLAG marks lock ownership between the two, so clear
# it on every manual toggle: this action is always a manual takeover of the lock.
PID_FILE="/tmp/caffeine-inhibit.pid"
OWNED_FLAG="/tmp/presence-inhibit-owned"
if [[ -f "$PID_FILE" ]] && kill -0 "$(cat "$PID_FILE")" 2>/dev/null; then
kill "$(cat "$PID_FILE")"
rm -f "$PID_FILE" "$OWNED_FLAG"
notify-send -t 2000 "Caffeine" "Idle inhibit OFF"
else
systemd-inhibit --what=idle:sleep \
--who="caffeine" \
--why="Caffeine mode active" \
--mode=block \
sleep infinity &
echo $! > "$PID_FILE"
rm -f "$OWNED_FLAG"
notify-send -t 2000 "Caffeine" "Idle inhibited"
fi