// ==UserScript==
// @name     kbin enhancement script
// @description Few small changes to the kbin UI while they still develop some features
// @namespace com.sirpsychomantis
// @license MIT
// @version  1.5
// @grant    none
// @run-at document-end
// @match  https://fedia.io/*
// @match  https://kbin.social/*
// @downloadURL none
// ==/UserScript==


(function(){
  const version = "1.5";
  const allSettings = [
    {name: "Show domains", value:"show-domains"},
    {name: "Show collapse comment", value:"show-collapse"},
    {name: "Show collapse replies", value:"show-collapse-replies"},
    {name: "Replies start collapsed", value:"start-collapse-replies", default: "false"},
    {name: "Move comment box to top", value:"comment-box-top"}
  ];
  
  allSettings.forEach(setting => {
    if (setting.default === "false" && localStorage.getItem("setting-" + setting.value) === null) {
      localStorage.setItem("setting-" + setting.value, "false");
    }
  });
  
  function getSetting(setting) {
    let value = localStorage.getItem("setting-" + setting);
    if (value === null)
      value = "true";
    return value === "true";
  }
  function setSetting(setting, value) {
    localStorage.setItem("setting-" + setting, value);
    location.reload();
  }
  
  
  function addDomain(link) {
    const parts = link.title.split("@");
    if (parts[2] !== location.hostname && !link.innerText.includes("@" + parts[2])) {
      const linkText = link.childNodes[link.childNodes.length-1];
      linkText.nodeValue += "@" + parts[2];
    }
  }
  function addDomains() {
    document.querySelectorAll(".magazine-inline, .user-inline").forEach(link => {
      addDomain(link);
    });
  }
  
  
  function getComments(comment, allComments) {
    const id = comment.id.split('-')[2];
    
    allComments.push(comment);
    const subComments = comment.parentElement.querySelectorAll('blockquote[data-subject-parent-value="'+id+'"]');
    subComments.forEach(blockquote => { getComments(blockquote, allComments); });
  }
  function getCollapsos(comment, allCollapsos) {
    const id = comment.id.split('-')[2];
    
    if (comment.classList.contains('kes-expand'))
    	allCollapsos.push(comment);
    
    const subComments = comment.parentElement.querySelectorAll('blockquote[data-subject-parent-value="'+id+'"]');
    subComments.forEach(blockquote => { getCollapsos(blockquote, allCollapsos); });
  }
  function removeAllCollapsos(blockquote) {
    // Just remove all these for now, don't want to figure out how to do this cleanly right now.
    const allCollapsos = [];
    getCollapsos(blockquote, allCollapsos);
    allCollapsos.forEach(comment => { comment.remove() });
  }
  function expandComment(blockquote) {
    const allComments = [];
    getComments(blockquote, allComments);
    allComments.forEach(comment => { comment.style.display="" });
    
    removeAllCollapsos(blockquote);
  }
  function collapseComment(blockquote) {
    const id = blockquote.id.split('-')[2];
    let commentLevel = "1";
    blockquote.classList.forEach(classItem => {
    	if (classItem.includes("comment-level"))
        commentLevel = classItem.split("--")[1];
    });
    
    const allComments = [];
    getComments(blockquote, allComments);
    allComments.forEach(comment => { comment.style.display="none" });

    const username = blockquote.querySelector("header a").innerText;

    const newBlockquote = document.createElement('blockquote');
    newBlockquote.className = 'kes-expand section comment entry-comment comment-level--' + commentLevel;
    newBlockquote.style = 'grid-gap: 0; padding-left:20px';
    newBlockquote.dataset.subjectParentValue = id;
    newBlockquote.innerHTML = '<header><a href="javascript:;">' + username + ' [+]</a></header>';
    newBlockquote.querySelector('a').addEventListener("click", () => {expandComment(blockquote)});
    blockquote.parentNode.insertBefore(newBlockquote, blockquote);
  }
  function getTotalReplyCount(blockquote) {
    const allComments = [];
    getComments(blockquote, allComments);
    return allComments.length - 1;
  }
  
  function addCollapseLinks() {
    if (location.pathname.startsWith('/m')) {
      const comments = document.querySelectorAll("blockquote.comment");
      comments.forEach(blockquote => {
      	const menu = blockquote.querySelector("header");
        const newA = document.createElement('a');
        newA.href = "javascript:;";
        newA.className = "kes-collapse";
        newA.innerHTML = '[-]';
        menu.appendChild(newA);
      });
      
      document.querySelectorAll(".kes-collapse").forEach(link => {link.addEventListener("click", () => {
        const blockquote = link.closest("blockquote.comment");
        collapseComment(blockquote);
      })});
    }
  }
  
  function getAllReplies(blockquote) {
    const allComments = [];
    getComments(blockquote, allComments);
    allComments.splice(allComments.indexOf(blockquote), 1);
    return allComments;
  }
  
  
  function toggleReplies(blockquote, display) {
    const id = blockquote.id.split('-')[2];
    const allReplies = getAllReplies(blockquote);
    
    let anyHidden = false;
    allReplies.forEach(reply => { 
      if (reply.style.display == 'none')
        anyHidden = true;
    });
    
    allReplies.forEach(comment => { comment.style.display = anyHidden ? '' : 'none' });
    
    removeAllCollapsos(blockquote);
  }
  
  function addCollapseRepliesLinks() {
    if (location.pathname.startsWith('/m')) {
      const comments = document.querySelectorAll("blockquote.comment-level--1");
      comments.forEach(blockquote => {
        const id = blockquote.id.split('-')[2];
        const subComments = blockquote.parentElement.querySelectorAll('blockquote[data-subject-parent-value="'+id+'"]');
        
        if (subComments.length > 0) {
          const menu = blockquote.querySelector("footer menu");
          const newLi = document.createElement('li');
          newLi.innerHTML = '<a href="javascript:;" class="kes-collapse-replies">toggle replies ('+getTotalReplyCount(blockquote)+')</a>';
          menu.appendChild(newLi);
        }
      });
      
      document.querySelectorAll(".kes-collapse-replies").forEach(link => {link.addEventListener("click", () => {
        const blockquote = link.closest("blockquote.comment");
        
        toggleReplies(blockquote);
      })});
    }
  }
  function collapseAllReplies() {
    const comments = document.querySelectorAll("blockquote.comment-level--2");
    comments.forEach(blockquote => {
      collapseComment(blockquote);
    });
  }
  
  
  function moveCommentBox() {
    const commentAdd = document.querySelector('#comment-add');
    if (commentAdd)
    	commentAdd.parentNode.insertBefore(commentAdd, document.querySelector('#comments'));
  }
  
  
  
  function generateSettingDiv(settingDisplay, setting) {
    const settingValue = getSetting(setting);
    const newDiv = document.createElement('div');
    newDiv.className = "row";
    newDiv.innerHTML = `<span>${settingDisplay}:</span>
      <div>
        <a class="kes-setting-yes link-muted ${settingValue ? 'active' : ''}" href="javascript:;" data-setting="${setting}">
          Yes
        </a>
        |
        <a class="kes-setting-no link-muted ${settingValue ? '' : 'active'}" href="javascript:;" data-setting="${setting}">
          No
        </a>
      </div>`;
    
    return newDiv;
  }
  function addHTMLSettings() {
    const settingsList = document.querySelector(".settings-list");
    
    const header = document.createElement('strong');
    header.textContent = "kbin enhancement script";
    settingsList.appendChild(header);
    
    allSettings.forEach(setting => { settingsList.appendChild(generateSettingDiv(setting.name, setting.value)) });
                             
    document.querySelectorAll(".kes-setting-yes").forEach(link => { link.addEventListener("click", () => {setSetting(link.dataset.setting, true) })});
    document.querySelectorAll(".kes-setting-no").forEach(link => { link.addEventListener("click", () => {setSetting(link.dataset.setting, false) })});
  }
  
  addHTMLSettings();
  if (getSetting("show-domains"))
    addDomains();
  if (getSetting("show-collapse"))
    addCollapseLinks();
  if (getSetting("show-collapse-replies"))
    addCollapseRepliesLinks();
  if (getSetting("start-collapse-replies"))
    collapseAllReplies();
  if (getSetting("comment-box-top"))
    moveCommentBox();
  
  
  
  
  if (localStorage.getItem("setting-changelog-version") != version) {
    const message = `<strong>kbin enhancement script version: ${version}</strong><br>
			Thanks for downloading! You can always toggle on and off features in the kbin sidebar settings.<br>Recent changes:
			<ul>
				<li>Added move comment box to top</li>
				<li>Adjusted collapse functionality</li>
				<li>Added hide all replies</li>
				<li>Added hide all replies by default</li>
				<li>Fixed bugs</li>
			</ul>
		`
    
    
    const versionDiv = document.createElement('div');
    versionDiv.id = 'kes-version-dialog';
    versionDiv.style = 'position: fixed; width: 100vw; height: 100vh; top: 0; left: 0; display: flex; align-items: center; justify-content: center; background-color: rgba(0,0,0,.3); z-index: 9999999';
    versionDiv.innerHTML = '<div style="background: #ddd; color: #444; position: relative; padding: 40px">'+message+'<br><button>Close</button></div>';
    document.body.appendChild(versionDiv);
    
    document.querySelector('#kes-version-dialog button').addEventListener("click", () => {
      document.querySelector('#kes-version-dialog').remove();
      localStorage.setItem("setting-changelog-version", version);
    });
  }
})();