function isJQueryLoaded(){
    if (window.jQuery) {
        //jQuery is loaded
        alert("jQuery sucessfully loaded!");
        return true;
    } else {
        //jQuery is not loaded
        alert("jQuery doesn't work!");
        return false;
    }
}

//Playback counter.
var counter = 0;
var observer;

function lel(){

    //isJQueryLoaded();

    //Start video if it already exists.
    let x = document.getElementsByClassName('state-paused');
    if(x[0] !== undefined){
        x[0].click();
    }

    //Run observer on site body.
    var bodyNode = document.body;

    // Create an observer instance
    observer = new MutationObserver(function (mutations) {
        mutations.every(function (mutation) {
            //console.log(mutation);

            var target = mutation.target; // Changed DOM Element.

            //If changed target contains state-paused and play-pause class (video only) , click play button.
            if(target.classList.contains('state-paused') && target.classList.contains('play-pause'))
            {
                counter++;
                console.log("Video Restarted " + counter + " times.");
                target.click();
                return false; //Cancel .every iteration.
            }
            else if(target.classList.contains('activity-button')){
                console.log(target);
            }
        });
    });

    // Configuration of the observer:
    var config = {
        attributes: true,
        characterData: true,
        childList: true,
        subtree: true,
        attributeOldValue: true,
        characterDataOldValue: true,
        attributeFilter: ['class']
    };

    // Pass in the target node, as well as the observer options
    observer.observe(bodyNode, config);
}

lel();