nixos-config/scripts/powerplay-led-idle
2024-08-17 02:05:00 -03:00

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#!/usr/bin/env bash
set -e
# Constants
SECONDS_UNTIL_FADE=$(( 1 * 60))
SECONDS_UNTIL_OFF=$(( 5 * 60))
COLOR_ON=ff0000
COLOR_FADE=880000
COLOR_OFF=000000
# Logging
if [[ "$1" = "debug" ]]; then
echo "Running with debugging" >&2
DEBUG="true"
SECONDS_UNTIL_FADE=$(( 3 ))
SECONDS_UNTIL_OFF=$(( 5 ))
fi
log() {
if [[ "$DEBUG" = "true" ]]; then
echo "$@" >&2
fi
}
# Implementation
main() {
CURRENT_STATE="UNKNOWN"
LAST_POINTER_MOTION="$(date +%s)"
if [ "$(ratbagctl list | wc -l)" -ne 1 ]; then
echo "Not exactly one device found, exiting..."
exit 1
fi
DEVICE="$(ratbagctl list | cut -d: -f1)"
while true; do
while read line; do
LAST_POINTER_MOTION="$(date +%s)"
break
done < <(
timeout 5s \
libinput debug-events \
| grep POINTER_MOTION
)
TIME_SINCE_LAST=$(( "$(date +%s)" - "$LAST_POINTER_MOTION" ))
log "Last pointer motion was $TIME_SINCE_LAST seconds ago"
if [ "$TIME_SINCE_LAST" -gt "$SECONDS_UNTIL_OFF" ]; then
setState OFF "$COLOR_OFF"
elif [ "$TIME_SINCE_LAST" -gt "$SECONDS_UNTIL_FADE" ]; then
setState FADE "$COLOR_FADE"
else
setState ON "$COLOR_ON"
fi
done
}
setState() {
STATE="$1"
COLOR="$2"
MODE="$3"
if [[ "$STATE" = "$CURRENT_STATE" ]]; then
log "Already in $STATE state"
return
fi
log "Changing state to $STATE"
CURRENT_STATE="$STATE"
ratbagctl "$DEVICE" led 0 set mode on
ratbagctl "$DEVICE" led 0 set color "$COLOR"
}
main