Add brightness-changer.sh

Scripts/brightness-changer.sh

@@ -0,0 +1,60 @@
+#!/bin/usr/env bash
+
+# Simple script to slowly lower your displays brightness after sunset using ddcutil
+# Assuming brightness is 75 and lower is to 50
+
+# Get the current brightness
+ddcutil getvcp 10 | awk '{print $9}' | sed 's/,//g' > /tmp/brightness
+current_brightness=$(cat /tmp/brightness)
+
+# Function to slowly lower the brightness
+lower_brightness() {
+   while (( $current_brightness > 50 )); do
+      current_brightness=$(($current_brightness - 1))
+      ddcutil setvcp 10 $current_brightness
+      sleep 1
+   done
+}
+
+# Function to reset brightness
+reset_brightness() {
+   if (( $current_brightness < 75 )); then
+      ddcutil setvcp 10 75
+   fi
+}
+
+# Get your coordinates here: https://www.latlong.net/
+lat= 12.345678
+long=98.765432
+
+# Get the times for sunrise and sunset
+curl "https://api.sunrisesunset.io/json?lat=$lat&lng=$long" |jq -r '.results | .sunrise' > /tmp/sunrise
+curl "https://api.sunrisesunset.io/json?lat=$lat&lng=$long" |jq -r '.results | .sunset' > /tmp/sunset
+
+sunrise=$(cat /tmp/sunrise)
+sunset=$(cat /tmp/sunset)
+
+# Convert them into hours and minutes
+hour_sunrise=$(date -d "$sunrise" +"%H")
+min_sunrise=$(date -d "$sunrise" +"%M")
+hour_sunset=$(date -d "$sunset" +"%H")
+min_sunset=$(date -d "$sunset" +"%M")
+
+# Get the current hour and minute
+current_hour=$(date +%H)
+current_minute=$(date +%M)
+
+# Convert current time to minutes since midnight
+current_time=$((10#$current_hour * 60 + 10#$current_minute))
+
+# Define the start times in minutes since midnight
+start_command1=$((10#$hour_sunset * 60 + 10#$min_sunset))
+end_command1=$((10#$hour_sunrise * 60 + 10#$min_sunrise))
+
+if (( current_time >= start_command1 || current_time < end_command1 )); then
+   # Execute command1 if the time is between sunset and sunrise
+   lower_brightness
+else
+   # Execute command2 if the time is between sunrise and sunset
+   reset_brightness
+fi