I am batman

scripts/brightnesscontrol.sh

@@ -0,0 +1,111 @@
+#!/usr/bin/env bash
+
+# Check if the script is already running
+pgrep -cf "${0##*/}" | grep -qv 1 && echo "An instance of the script is already running..." && exit 1
+
+scrDir=`dirname "$(realpath "$0")"`
+source $scrDir/globalcontrol.sh
+
+# Check if SwayOSD is installed
+use_swayosd=false
+if command -v swayosd-client >/dev/null 2>&1 && pgrep -x swayosd-server >/dev/null; then
+    use_swayosd=true
+fi
+
+print_error()
+{
+cat << EOF
+    $(basename ${0}) <action> [step] [mode]
+    ...valid actions are...
+        i -- <i>ncrease brightness [+5%]
+        d -- <d>ecrease brightness [-5%]
+
+    Example:
+        $(basename ${0}) i 10    # Increase brightness by 10%
+        $(basename ${0}) d       # Decrease brightness by default step (5%)
+        $(basename ${0}) i 5 -q  # Increase brightness by 5% quietly
+EOF
+}
+notify="${waybar_brightness_notification:-true}"  # Default: notifications are enabled
+action=""     # Will store 'increase' or 'decrease'
+step=5        # Default step value
+
+# Parse all arguments
+for arg in "$@"; do
+    case $arg in
+        i|-i)   
+            [ -n "$action" ] && 
+                { 
+                    echo -e "\033[38;2;255;0;0mOne or more actions are provided\033[0m"; 
+                    print_error; 
+                    exit 1; 
+                }                       # Prevent multiple actions
+            action="increase" ;;        # Increase brightness
+        d|-d)  
+            [ -n "$action" ] && 
+                { 
+                    echo -e "\033[38;2;255;0;0mOne or more actions are provided\033[0m"; 
+                    print_error; 
+                    exit 1; 
+                }                       # Prevent multiple actions
+            action="decrease" ;;        # Decrease brightness
+        q|-q)  
+            notify=false ;;             # Disabling notification
+        [0-9]*)  
+            if ! echo "$arg" | grep -Eq '^[0-9]+$'; then
+                print_error
+                exit 1
+            fi
+            step=$arg ;;                # Step value
+        *)      
+            print_error && exit 1 ;;    # Invalid input
+    esac
+done
+
+if [ -z "$action" ]; then               # If actions are missing with mode/value
+    echo -e "\033[38;2;255;0;0mActions are not provided\033[0m"
+    print_error
+    exit 1
+fi
+
+send_notification() {
+    brightness=`brightnessctl info | grep -oP "(?<=\()\d+(?=%)" | cat`
+    brightinfo=$(brightnessctl info | awk -F "'" '/Device/ {print $2}')
+    angle="$(((($brightness + 2) / 5) * 5))"
+    ico="$HOME/.config/dunst/icons/vol/vol-${angle}.svg"
+    bar=$(seq -s "." $(($brightness / 15)) | sed 's/[0-9]//g')
+    notify-send -a "t2" -r 91190 -t 800 -i "${ico}" "${brightness}${bar}" "${brightinfo}"
+}
+
+get_brightness() {
+    brightnessctl -m | grep -o '[0-9]\+%' | head -c-2
+}
+
+
+case $action in
+increase) # increase the backlight
+    if [[ $(get_brightness) -lt 10 ]] ; then
+        # increase the backlight by 1% if less than 10%
+        step=1
+    fi
+
+    $use_swayosd && swayosd-client --brightness raise "$step" && exit 0
+    brightnessctl set +${step}%
+    [ "$notify" = true ] && send_notification ;;
+decrease) # decrease the backlight
+
+    if [[ $(get_brightness) -le 10 ]] ; then
+        # decrease the backlight by 1% if less than 10%
+        step=1
+    fi
+
+    if [[ $(get_brightness) -le 1 ]]; then
+        brightnessctl set ${step}%
+        $use_swayosd && exit 0
+    else
+        $use_swayosd && swayosd-client --brightness lower "$step" && exit 0
+        brightnessctl set ${step}%-
+    fi
+
+    [ "$notify" = true ] && send_notification ;;
+esac