var messages_div = document.getElementsByClassName("messages-3amgkR scroller")[0];

window.action_button_arr = [];
window.bdpm_i = 0;
window.bdpm_interval = 0;
window.scrollTopInterval = window.setInterval(function () {
    if (messages_div.scrollTop == 0) {
        clearInterval(window.scrollTopInterval);
        window.action_button_arr = document.getElementsByClassName("button-3Jq0g9");
        window.bdpmInterval = window.setInterval(function () {
            if (window.bdpm_i >= window.action_button_arr.length) {
                clearInterval(window.bdpmInterval);
            } else {
                do {
                    console.info("Message " + window.bdpm_i + "/" + window.action_button_arr.length);
                    window.action_button_arr[window.bdpm_i].click();
                    var action_container = document.getElementsByClassName("container-3cGP6G")[0];
                    if (action_container.children.length != 3) {
                        window.bdpm_i += 1;
                    } else {
                        break;
                    }
                } while (window.bdpm_i < window.action_button_arr.length);
                console.info("Processing message " + window.bdpm_i + "/" + window.action_button_arr.length);
                if (window.bdpm_i < window.action_button_arr.length) {
                    action_container.children[2].click();
                    document.getElementsByClassName("flex-1xMQg5 flex-1O1GKY horizontalReverse-2eTKWD horizontalReverse-3tRjY7 flex-1O1GKY directionRowReverse-m8IjIq justifyStart-2NDFzi alignStretch-DpGPf3 noWrap-3jynv6 footer-2yfCgX")[0].children[0].click();
                } else {
                    console.log("Detected end");
                    clearInterval(window.bdpmInterval);
                }
                console.warn("Looping interval");
            }
        }, 2000);
    } else {
        messages_div.scrollTo(0, 0);
    }
}, 2000);