#!/bin/bash
#ftpfct : Fucking ThinkPad FanConTrol
# Yep, fancontrol works shit on my machine (kernel fault I think), so let's use
# ACPI and "kernel controls" (from TP_smapi).

FANFILE=/proc/acpi/ibm/fan

ACPI='acpi -V'

REFRESH=10

function set_fan
{
	echo "level $1" | sudo tee $FANFILE
}

function finish
{
	set_fan full-speed
}

trap finish EXIT

while true; do

	TEMP=$($ACPI | grep degrees | grep -v critical | cut -d' ' -f4)
	TEMP=$(echo $TEMP | cut -d. -f1)
	echo $TEMP °C

	#TODO: hysteresis if it becomes fucking annoying jumping around

	if [ $TEMP -lt 10 ]; then
		xsetroot PROC PROBLEM
		set_fan full_speed
		echo "full speed"
		REFRESH=10
	elif [ $TEMP -lt 46 ]; then
		set_fan 0
		echo "lt 46"
		REFRESH=10
	elif [ $TEMP -lt 56 ]; then
		set_fan 1
		echo "lt 56"
		REFRESH=5
	elif [ $TEMP -lt 66 ]; then
		set_fan 2
		echo "lt 66"
		REFRESH=4
	elif [ $TEMP -lt 70 ]; then
		set_fan 5
		echo "lt 66"
		REFRESH=3
	else
		set_fan full-speed
		echo "full speed"
		REFRESH=2
	fi;

	sleep $REFRESH

done