bin/setredshift at main · vxsl/bin · GitHub

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#!/bin/sh

DIRNAME="$(dirname "$0")/.tmp"
mkdir -p "$DIRNAME"

if [ ! -e "$DIRNAME/cur_brightness" ]; then
    echo 1 > "$DIRNAME/cur_brightness"
fi

if [ ! -e "$DIRNAME/cur_temp" ]; then
    echo 6500 > "$DIRNAME/cur_temp"
fi

curbrightness=$(cat $DIRNAME/cur_brightness)
curtemp=$(cat $DIRNAME/cur_temp)

if [[ ("$1" == "--reset") ]]; then
    redshift -x
    echo 1 > $DIRNAME/cur_brightness
    echo 6500 > $DIRNAME/cur_temp
    exit 0
fi

while getopts ":b:t:" opt; do
    case $opt in
        b) arg_1="$OPTARG"

            INCR=0.1
            if [[ ("$1" == "-bi") ]]; then
                new=$(echo "$curbrightness+$INCR" | bc)
                valid=$(echo "$new >= 0 && $new <= 1" | bc)
                echo $new
                elif [[ ("$1" == "-bd") ]]; then
                new=$(echo "$curbrightness-$INCR" | bc)
                valid=$(echo "$new >= 0 && $new <= 1" | bc)
                elif [[ ("$1" == "-br") ]]; then
                new=1
                valid=1
            fi
            if [[ $valid -eq 1 ]]; then
                redshift -P -O  $curtemp -b $new
                echo $new > $DIRNAME/cur_brightness
            fi
        ;;
        t) p_out="$OPTARG"
            INCR=500
            if [[ ("$1" == "-tr") ]]; then
                redshift -x
                redshift -P -O $curtemp
                exit 0
            fi

            echo $curtemp
            below_threshold=$(echo "$curtemp <= 1500" | bc)
            if [[ $below_threshold -eq 1 ]]; then
                INCR=100
            fi
            if [[ ("$1" == "-ti") ]]; then
                new=$(echo "$curtemp+$INCR" | bc)
                elif [[ ("$1" == "-td") ]]; then
                new=$(echo "$curtemp-$INCR" | bc)
            fi

            echo $new
            valid=$(echo "$new >= 0 && $new <= 6500" | bc)

            if [[ $valid -eq 1 ]]; then
                redshift -P -O $new -b $curbrightness
                echo $new > $DIRNAME/cur_temp
            fi
        ;;
        \?) echo "Invalid option -$OPTARG" >&2
        ;;
    esac
done