// ==UserScript==
// @name         NFOHump Hidden Threads
// @namespace    com.LeoNatan.hidethreads
// @version      1.0.6
// @description  Adds proper ignore list in NFOHump forums, where threads actually disappear.
// @author       Leo Natan
// @match        *://nfohump.com/forum/*
// @match        *://www.nfohump.com/forum/*
// @grant        none
// @downloadURL  https://raw.githubusercontent.com/LeoNatan/NFOHump/master/IgnoreThread/NFOHumpIgnoreThread.user.js
// @updateURL    https://raw.githubusercontent.com/LeoNatan/NFOHump/master/IgnoreThread/NFOHumpIgnoreThread.user.js
// @require      https://cdnjs.cloudflare.com/ajax/libs/URI.js/1.19.2/URI.min.js
// @position     1
// @noframes
// @run-at document-end
// ==/UserScript==

(() => {
    if(window.$ == undefined) {
        return;
    }

    const className = "hiddenByNFOHumpIgnoreThread";

    if(localStorage.threadBlocklist === null || localStorage.threadBlocklist === undefined)
    {
        localStorage.threadBlocklist = "";
    }

    if(localStorage.isThreadBlocklistEnabled === null || localStorage.isThreadBlocklistEnabled === undefined)
    {
        localStorage.isThreadBlocklistEnabled = "true";
    }

    const anchor = $('<a class="mainmenu" style="cursor: pointer;">Hidden threads</a>').click(function() {
        var q = prompt("Enter a comma-separated list of threads to hide:", localStorage.threadBlocklist);
        if(q === null)
        {
            return;
        }

        if (q != localStorage.threadBlocklist)
        {
            localStorage.threadBlocklist = q;
            resetAndHideThreadElements();
        }
    });

    const checkbox = $('<input style="margin: 0px; margin-left: 20.25px; margin-top: 1px;" type="checkbox" ' + (localStorage.isThreadBlocklistEnabled == "true" ? 'checked' : '') + ' />').click(function () {
        localStorage.isThreadBlocklistEnabled = (localStorage.isThreadBlocklistEnabled == "true" ? "false" : "true");
        resetAndHideThreadElements();
    });

    const ul = $('#leftdiv > div.menuLeftContainer:first > ul');
    const hiddenUsers = ul.find(".hiddenusersli").first();
    const newMenuItem = $('<li class="hiddethreadsli" style="vertical-align: middle;"></li>').append(anchor).append(checkbox);
    if(hiddenUsers[0] != undefined)
    {
        hiddenUsers.after(newMenuItem);
    }
    else
    {
        ul.append(newMenuItem);
    }

    function isThreadhidden(clickedThread)
    {
        return $.grep($.map(localStorage.threadBlocklist.split(','), function(v) {
            return $.trim(v);
        }), function(e) { return e === clickedThread }).length > 0;
    }

    function performThreadOperation(clickedThread, hide)
    {
        var arr = $.grep($.map(localStorage.threadBlocklist.split(','), function(v) {
            return $.trim(v);
        }), function(e) { return e !== clickedThread && e.length > 0; });
        if(hide === true)
        {
            arr.push(clickedThread);
        }
        localStorage.threadBlocklist = arr.join(', ');

        resetAndHideThreadElements();
    }

    if(window.location.href.includes("viewtopic.php") == true)
    {
        const ignoreThread = URI($('a[href^="posting.php?mode=reply"')[0].href).query(true)["t"];
        var threadIsHidden = isThreadhidden(ignoreThread);
        const newButton = $('<li style="padding-right: 3px;"><a href="">' + (threadIsHidden ? "Unhide Thread" : "Hide Thread") + '</a></li>').click(function(e) {
            performThreadOperation(ignoreThread, !threadIsHidden);
            threadIsHidden = !threadIsHidden;
            $(e.target).text((threadIsHidden ? "Unhide Thread" : "Hide Thread"));

            return false;
        });

        $('a[href^="posting.php?mode=newtopic"').parent().before(newButton);
    }

    if(window.location.href.includes("viewforum.php") != true)
    {
        return;
    }

    $('.row3Right .postdetails:first-child').each(function(i, link) {
        const ignoreThread = $('<span style="cursor: pointer; user-select: none; padding: 3px; color: red; font-size: 120%;">✗</span>').click(function(e) {
            const clickedThread = URI($(e.target).parent().parent().parent().find("a.topictitle").first()[0].href).query(true)["t"];
            performThreadOperation(clickedThread, true);

            return false;
        });
        $(link).children().first().before(ignoreThread);
    });

    function hideThreadElements() {
        $.each(localStorage.threadBlocklist.split(','), function(k, v) {
            v = $.trim(v);
            $('a.topictitle[href$="' + v + '"]').each(function(i, link) {
                let row = $(link).parent().parent().parent();
                row.addClass(className);
                row.hide();
            });
        });
    }

    function resetHiddenThreadElements() {
        $('.' + className).each(function(i, tr) {
            $(tr).removeClass(className);
            $(tr).show();
        });
    }

    function resetAndHideThreadElements() {
        resetHiddenThreadElements();
        if (localStorage.isThreadBlocklistEnabled == "true" && localStorage['blocklist'] && localStorage['blocklist'].length > 0) {
            hideThreadElements();
        }
    }

    resetAndHideThreadElements();
})();