Hide Non Relevant Conversations for Twitter

/*

 first need to download Custom JavaScript for websites

 hide users in mentions when the conversation is no longer relevant to you

*/



myHandle = "";

if(myAvatarElem = document.querySelector('a[aria-label*=Profile]')) {
    if(myAvatarElem.getAttribute('href')) {
        myHandle = myAvatarElem.getAttribute('href').replace(/\//g, '');
    }
}

function removeNonRelevantTweets() {
    if(!myHandle) { return; }

    window.nonRelevantUsers = {};
    allTweets = document.querySelectorAll('article[role=article]');

    for(removeTweetI = 0; removeTweetI < allTweets.length; removeTweetI++) {
            tweetUserElem = allTweets[removeTweetI].querySelector("a[class*=dnmrzs]");
            if(tweetUserElem) {
                tweetUserText = tweetUserElem.innerText;
                if(tweetUserMatch = tweetUserText.match(/@([^\s]+)(\s|$)/)) {
                    tweetUser = tweetUserMatch[1];
                    // I was not originator of tweet, add their tweet to non relevant list or increment if already there
                    if(tweetUser != myHandle) {
                        nonRelevantUsers[tweetUser] = (nonRelevantUsers[tweetUser] == undefined)? 1 : parseInt(nonRelevantUsers[tweetUser]) + 1;
                        if(nonRelevantUsers[tweetUser] > 2) {
                            allTweets[removeTweetI].style.opacity = '0';
                        }
                    } else {
                        // every user that was in this tweet that I started, decrement their non relevant status
                        usersInTweetElems = allTweets[removeTweetI].querySelectorAll('a[role*=link]');
                        for(userInTweetI = 0; userInTweetI < usersInTweetElems.length; userInTweetI++) {
                            userInTweetText = usersInTweetElems[userInTweetI].innerText;
                            if(userInTweetText.indexOf('@') > -1) {
                                if(userInTweetMatch = userInTweetText.match(/@([^\s]+)(\s|$)/)) {
                                    userInTweet = userInTweetMatch[1];
                                    if(userInTweet != myHandle) {
                                        nonRelevantUsers[userInTweet] = (nonRelevantUsers[userInTweet] == undefined)? -1 : parseInt(nonRelevantUsers[userInTweet]) - 1;
                                    }
                                }
                            }
                        }

                    }
                }
            }
    }
      setTimeout(function() {
            removeNonRelevantTweets();
      }, 250);

}

removeNonRelevantTweets();