SteamChatHighlighter

#!/bin/bash
## Run script on startup. Set it and forget it.
## Made by MoistGoat#2305
## Source: https://pastebin.com/bjyqPgku
## Only works for old UI sadly. Screw you valve.

if command -v wmctrl >/dev/null 2>&1 ; then
    while :;do
        sleep 5s ## Checks if Steam is running every 5 seconds
        ChatGrabbed=0
        SteamPID=$(cat $HOME/.steam/steam.pid)
        Running=$(ps -p $SteamPID | grep -wo $SteamPID)
        if [ "$SteamPID" == "$Running" ]; then ## If Steam is running, check ids and grab 'em.
            while [ "$ChatGrabbed" == "0" ]; do
                sleep 1s ## Just to prevent high memory usage if chat window isn't grabbed yet
                listids=$(wmctrl -l | grep N/A | cut -f1 -d' ')
                readarray -t array < <(printf '%s\n' $listids)
                for ((i=0; i<${#array[@]}; i++)); do
                    if [[ $(xprop -id ${array[i]} | grep -wo "400 by 250") == "400 by 250" ]] && [[ $(xprop -id ${array[i]} | grep -wo "Steam" | head -1) == "Steam" ]]; then ## Finds which one is the chat window.
                        WindowID=$(echo ${array[i]})
                        ChatGrabbed=1
                    fi
                done
            done
        fi
        while [ "$SteamPID" == "$Running" ]; do ## If Steam is actually running, keep an eye on the log file.
            tail -fn0 --pid=$$ "/tmp/dumps/"$USER"_stdout.txt" | egrep -q "WebChat.SetNumChatsWithUnreadPriorityMessage|Shutdown" ## Waits for match
            Date=$(date "+[%Y-%m-%d %H:%M:%S]")
            if [[ $(cat "/tmp/dumps/"$USER"_stdout.txt" | grep "Shutdown" | tail -1) == "$Date Shutdown" ]]; then
                Running=0 ## If Exiting found, then wait until script sees Steam running to prevent issues
                ChatGrabbed=0
            else
                wmctrl -F -ir $WindowID -b add,demands_attention ## Highlights the window :)
            fi
        done
    done
else
    echo "wmctrl not installed. Please install it for this script to work!"
    notify-send -a "Steam Chat Highlighter" "Wmctrl not installed!" -t 0
fi