88 lines
2.6 KiB
Bash
Executable file
88 lines
2.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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# author: Daniel Sommer <daniel.sommer@velvettear.de>
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# license: MIT
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# blinky
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blinky_url="127.0.0.1:3000"
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blinky_mode="morph"
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blinky_duration="2500"
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# temperature
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max_temp="65000"
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crit_temp="70000"
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threshold_upper="66"
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threshold_lower="33"
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thermal_zones=(
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"3"
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)
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# argument to lowercase
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arg="${1,,}"
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# functions
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function checkRoot() {
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[[ "$EUID" != 0 ]] && printf "error: permission denied!\n" && exit 1
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}
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# convert a temperature value to a rgb color value
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function temperatureToRGB() {
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[[ ! "$1" ]] && printf "error: did not receive a temperature value to convert to a rgb value\n" && exit 1
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printf "converting temperature to rgb value... "
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percentage="$(bc <<< "$1 / ( $max_temp / 100 )")"
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[[ "$percentage" -gt "100" ]] && percentage="100"
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color_main="$(bc <<< "$percentage * 2.55")"
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color_supplement="$(bc <<< "255 - $color_main")"
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color_unused="0"
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if [[ "$percentage" -ge "$threshold_upper" ]]; then
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result="$color_main, $color_supplement, $color_unused"
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elif [[ "$percentage" -ge "33" ]]; then
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result="$color_supplement, $color_main, $color_unused"
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else
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result="$color_unused, $color_supplement, $color_main"
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fi
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printf "result: '$result'\n"
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}
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# send http post request to blinky
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function sendPOST() {
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[[ ! "$1" ]] && printf "error: did not receive any arguments for post request\n" && exit 1
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cmd="curl -X POST"
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for arg in "$@"; do
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cmd="$cmd -d \"$arg\""
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done
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cmd="$cmd \"$blinky_url\""
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printf "sending post request '$cmd'...\n"
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eval "$cmd"
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}
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# get (average) temperature from defined thermal zones
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function getTemperature() {
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counter="0"
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printf "getting temperature value from thermal zone(s) "
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for zone in "${thermal_zones[@]}"; do
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printf "'"$zone"'... "
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for value in $(cat "/sys/devices/virtual/thermal/thermal_zone"$zone"/temp"); do
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[[ ! "$temp" ]] && temp="$value" || temp=$(( $temp + $value ))
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(( counter++ ))
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done
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done
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result="$(( $temp / $counter ))"
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printf "result: '$result'\n"
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[[ "$result" -ge "$crit_temp" ]] && printf "warning: critical temperature reached\n" && blinky_mode="pulse" && blinky_duration="500" && return 0
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[[ "$result" -ge "$max_temp" ]] && printf "warning: maximum temperature reached\n" && blinky_mode="pulse" && blinky_duration="1500" && return 0
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}
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# main part
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case "$arg" in
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-t|--temp|--temperature)
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checkRoot
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getTemperature
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temperatureToRGB "$result"
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sendPOST "color=$result" "mode=$blinky_mode" "duration=$blinky_duration"
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;;
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*)
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printf "error: no argument given or argument unknown!\n" && exit 1
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;;
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esac
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