// ==UserScript==
// @name     		House of Usenet - AutoThxAndDownloader
// @description     Auto presses thanks and triggers the download and closes tab after download. You only have to open the entry you want to download in a new tab. 
// @version  		1.2
// @grant			none
// @author			UnFairlight
// @license         MIT
// @namespace       unfairlight.hou.autothxanddownloader
// @run-at			document-end
// @match			https://house-of-usenet.com/showthread.php?tid=*
// @downloadURL none
// ==/UserScript==


/* jshint esversion: 6 */


//check links in breadcrumbs
if (document.querySelector("[href='forumdisplay.php?fid=13']") !== null || //Movies
    document.querySelector("[href='forumdisplay.php?fid=58']") !== null || //Series
    document.querySelector("[href='forumdisplay.php?fid=14']") !== null || //Music
    document.querySelector("[href='forumdisplay.php?fid=70']") !== null || //Docus
    document.querySelector("[href='forumdisplay.php?fid=6']") !== null || //Games
    document.querySelector("[href='forumdisplay.php?fid=26']") !== null //Cine
) {



    //presses thx btns
    var loopBtns = function(i, thxBtns) {
        console.log("btn", thxBtns[i]);
        if (thxBtns[i].style.display != "none") {
            console.log("thx btn is not hidden");
            thxBtns[i].click();

            let postId = thxBtns[i].id.match(/\d+/)[0];
            console.log("postId", postId);


            let lastThx = (i + 1 >= thxBtns.length);
            console.log("lastThx", lastThx);

            setTimeout(function() {
                triggerDL(postId, 0, lastThx);
            }, getRandomDelay());


        } else {
            console.log("thx btn is hidden");
        }

        i++;
        if (i < thxBtns.length) {
            setTimeout(function() {
                loopBtns(i, thxBtns);
            }, getRandomDelay());
        } else {

        }
    };


    //clicks on download
    var triggerDL = function(postId, tryC, lastThx) {

        let post = document.querySelector("[id^='post_" + postId + "']");
        console.log("post", post);
        let dlLink = post.querySelector("[class^='exito_thx message'] a");
        if (dlLink !== null) {

            console.log("dlLink", dlLink);
            dlLink.click();

            if (lastThx) {
                setTimeout(function() {
                    window.close();
                }, getRandomDelay());
            }
        } else {
            tryC++;
            if (
                tryC <= 5) {
                setTimeout(function() {
                    triggerDL(postId,
                        tryC, lastThx);
                }, getRandomDelay());
            }
        }
    };


    //random delay to avoid getting banned
    var getRandomDelay = function() {
        return 2001 + Math.floor(Math.random() * 1500);
    };


    document.addEventListener("keyup", function(e) {

        if (e.keyCode == 68) {
            console.log("d pressed");
            var thxBtns = document.querySelectorAll("[id^='add_thx']");
            console.log("thxBtns", thxBtns);

            if (thxBtns.length > 0) {
                loopBtns(0, thxBtns);
            } else {
                console.log("No thx btns found!");
            }
        }
    });



    //todo: make this configurable (auto download or only on keypress d

    //trigger d press to start download
    setTimeout(function() {
        document.dispatchEvent(new KeyboardEvent('keyup', {
            'keyCode': 68
        }));
    }, getRandomDelay());


}