// ==UserScript==
// @name         ao3 autocommenter
// @version      1.0
// @description  automatically comment on a fic when you've already left kudos
// @include      /https?://archiveofourown\.org/.*works/\d+/
// @grant        none
// @namespace    https://greasyfork.org/users/36620
// @downloadURL none
// ==/UserScript==

//ACNOWLEDGEMENT: most of the method is cribbed from "ao3 no rekudos" by scriptfairy
//I do not know enough JS to do shit like this on my own
//https://greasyfork.org/en/scripts/406616-ao3-no-rekudos

//Comment Handler//
var message;
    message = "This is an extra kudos, since I've already left one. :)"
    //Remember to keep your message between the quotation marks.
    //Message max length: 10000 characters
//****//

//Getting the username, work ID, site elements
var greeting, username, work_id, kudos, kudo_btn, cmnt_btn, cmnt_field;

greeting = document.getElementById('greeting');

username = greeting.querySelector('a').href;
username = username.slice(username.lastIndexOf('/')+1);

work_id = window.location.pathname;
work_id = work_id.substring(work_id.lastIndexOf('/')+1);

kudos = document.getElementById('feedback');
kudos = kudos.querySelectorAll('.kudos a');

kudo_btn = document.getElementById('new_kudo');
cmnt_btn = document.getElementById('comment_submit_for_'+work_id);
cmnt_field = document.getElementById('comment_content_for_'+work_id);

//Comment-sending with button press rather than form submit
function send_cmnt() {
    cmnt_btn.click();
}

//Change kudos button behaviour
for (var i = 0; i < kudos.length; i++) {
  if (kudos[i].innerText == username) {
    cmnt_field.value = message;
    kudo_btn.addEventListener("click", send_cmnt);
    break;}
}