---
layout: default
# This is where most of the code for CommunityRule lives
# Follow comments below in various sections for further explanation
---

<script>
  // Enter JavaScript-land!
  // First, some functions, followed by initialization commands

  // Begin BUILDER functions
  // source: https://www.codecanal.com/html5-drag-and-copy/
  function allowDrop(ev) {
      ev.preventDefault();
  }
  function drag(ev) {
      ev.dataTransfer.setData("text", ev.target.id);
  }
  function drop(ev) {
      ev.preventDefault();
      var target = ev.target;
      // Prevents dropping into text field
      if (target.id == "drag-directions") {
          target = target.parentElement;
      }
      // Set up transfer
      var data = ev.dataTransfer.getData("text");
      // Iff module is from the menu clone it
      var module = document.getElementById(data);
      if (module.parentElement.id == "module-menu") {
          module = module.cloneNode(true);
          // Add a corresponding text field
          var name = module.innerHTML.replace(/(<([^>]+)>)/ig,'');
          var query = "Explain how the <strong>" + name + "</strong> module works.";
          addField(query);
      }
      // append name
      module.id += "-dropped";
      // display the deletion button
      module.children[2].style.display = "inline";
      // pop it in!
      target.appendChild(module);
      // be sure the dummy text is gone
      document.getElementById("drag-directions").style.display = "none";
      // Send field contents to console to aid in database stuff
      console.log(document.getElementById("module-input"));   
  }

  // Adds a new question field
  function addField(content) {
      // if input is null, add an empty field to the list
      // include a field removal button
      var destination = document.getElementById("builder-field");
      if (content == null) { content = ""; }     
      var output = '\n<div><a onclick="this.parentNode.remove()"><img src="{% link assets/tabler_icons/x.svg %}" class="delete-module" align="right" /></a>';
      output += '<span class="question">' + content + '</span>';
      output += '<p contenteditable="true" class="editable output" id="custom-field"></p></div>\n';
      destination.innerHTML += output;
  }
  // end BUILDER functions
  
  // toggleVisible(id)
  // Toggles the visibility of a given element by given ID
  function toggleVisible(id) {
      var x = document.getElementById(id);
      if (x.style.display === "none") {
          x.style.display = "block";
      } else {
          x.style.display = "none";
      }
  }

  // classDisplayAll(className, value)
  // Assigns given display value to all elements with a given className
  function classDisplayAll(className, value) {
      var elements = document.getElementsByClassName(className);
      for (var i = 0; i < elements.length; i++) {
          elements[i].style.display = value;
      } 
  }

  // toggleEditMode()
  // Toggles whether editable fields are editable or not
  // and removes editing tools.
  function toggleEditMode() {
      if (editMode === true) { // switch to preview mode
          editMode = false;
          classDisplayAll("section","block");
          classDisplayAll("button","none");
          classDisplayAll("question","none");
          classDisplayAll("delete-module","none");
          var editableFields = document.getElementsByClassName("editable");  
          // de-editable-ize the editable fields
          for (var i = 0; i < editableFields.length; i++) {
              editableFields[i].contentEditable = "false";
              editableFields[i].style.borderStyle = "none";
              // Remove empty fields entirely
              var content = editableFields[i].innerHTML;
              content = content.replace(/(<([^>]+)>)/ig,''); // strips stray tags
              if (content === "") {
                  editableFields[i].style.display = "none";
              }   
          }
          // Remove headers of empty sections
          // Inefficient! Might be merged with the above iteration
          var sections = document.getElementsByClassName("section");
          for (var i = 0; i < sections.length; i++) {
              var sectionQuestions = sections[i].getElementsByClassName("editable");
              var blanks = 0;
              for (var x = 0; x < sectionQuestions.length; x++) {
                  var content = sectionQuestions[x].innerHTML;
                  content = content.replace(/(<([^>]+)>)/ig,''); // strips stray tags
                  if (content == "") { blanks++; }
                  if (blanks == sectionQuestions.length) {
                      var headerID = "header-s" + (i + 1);
                      document.getElementById(headerID).style.display = "none";
                  }
              }
          }
          // Handle links
          // TKTK
          // Handle author link
          var authorName = document.getElementById("author-text").value;
          var authorURL = document.getElementById("author-url").value;
          if (authorName != "") {
              document.getElementById("authorship-words").style.display = "inline";
              if (authorURL != "") { // both author and URL present                
                  document.getElementById("authorship-result").innerHTML = "<a href='" + authorURL +"'>" + authorName + "</a>";
                  document.getElementById("authorship-result").style.display = "inline";
              } else { // only authorName present
                  document.getElementById("authorship-result").innerHTML = authorName;
                  document.getElementById("authorship-result").style.display = "inline";
              }
          } else {
              document.getElementById("authorship").style.display = "none";
          }
          // Finally, change button name
          document.getElementById("editToggle").innerHTML = "Customize";
      } else { // Switch to editMode
          editMode = true;
          classDisplayAll("button","block");
          classDisplayAll("question","block");
          classDisplayAll("editable","block");
          classDisplayAll("header","block");
          classDisplayAll("section","none");
          classDisplayAll("link-text","inline");
          classDisplayAll("link-url","inline");
          classDisplayAll("delete-module","inline");
          // link handling TKTK
          // author handling
          document.getElementById("authorship-result").style.display = "none";
          document.getElementById("authorship-words").style.display = "none";
          document.getElementById("authorship").style.display = "block";
          // make all editable fields visible
          var editableFields = document.getElementsByClassName("editable");
          for (var i = 0; i < editableFields.length; i++) {
              editableFields[i].style.borderStyle = "none none dashed none";
              editableFields[i].contentEditable = "true";
          }
          // Change button name
          document.getElementById("editToggle").innerHTML = "Preview";
      }
  }

  // toggleDisplayMode()
  // toggles full displayMode, the Rule-only display for a published Rule
  // first, initialize variable:
  var displayMode = false;
  function toggleDisplayMode() {
      if (displayMode == false) {
          editMode = true;
          toggleEditMode(); // turns off editMode
          classDisplayAll("site-nav","none");
          classDisplayAll("post-header","none");
          classDisplayAll("site-footer","none");
          document.getElementById("attribution").style.display = "block";
          document.getElementById("toggleDisplayMode").style.display = "inline-block";
          document.getElementById("publishRule").style.display = "none";
          document.getElementById("trash").style.display = "inline-block";
          displayMode = true;
      } else {
          toggleEditMode() // turns on editMode
          classDisplayAll("site-nav","block");
          classDisplayAll("post-header","block");
          classDisplayAll("site-footer","block");
          document.getElementById("attribution").style.display = "none";
          document.getElementById("toggleDisplayMode").style.display = "none";
          document.getElementById("publishRule").style.display = "inline-block";
          document.getElementById("trash").style.display = "none";
          displayMode = false;
      }
  }

  // textOutput()
  // Produces Markdown rendition of Rule from Export button
  function textOutput() {
      var filename = 'GOVERNANCE.md';
      // First, add title, whether there is one or not
      var content = '# '+ document.getElementById('communityname').innerHTML + '\n\n';
      content = content.replace(/(<([^>]+)>)/ig,''); // strips stray tags
      // Now, begin adding other elements
      var elements = document.getElementsByClassName('output');
      for (var i = 1; i < elements.length; i++) {
          var thisBit = elements[i].innerHTML;
          thisBit = thisBit.replace(/(<([^>]+)>)/ig,''); // strips stray tags
          if (thisBit != "") {
              if (elements[i].classList.contains("subhead")) {
                  // Before printing subhead, make sure it's not empty
                  var i2 = i + 1;
                  while ((i2 < elements.length) &&
                         (!(elements[i2].classList.contains("subhead")))) {
                      if (elements[i2].innerHTML != "") {
                          // in this case, it's not empty, so print and move on
                          content += '## ';
                          content += thisBit + '\n\n';
                          break;
                      } else { i2++; }
                  } // won't print anything if a subhead has only empty children
              } else {
                  // Non-subhead elements can just go ahead and print
                  content += thisBit + '\n\n';
              }
          }
      }
      // Add authorship block
      var authorName = document.getElementById("author-text").value;
      var authorURL = document.getElementById("author-url").value;
      var authorshipBlock = "---\n\nCreated by ";
      if (authorName != "") {
          if (authorURL != "") { // both author and URL present                
              authorshipBlock += ("[" + authorName + "](" + authorURL + ")");
          } else { // only authorName present
              authorshipBlock += authorName;
          }
          content += (authorshipBlock + "\n");
      } 
      // Add attribution block
      content += document.getElementById('attributionMD').innerHTML;
      // Starting here, see https://stackoverflow.com/a/33542499
      var blob = new Blob([content], {type: 'text/plain'});
      if(window.navigator.msSaveOrOpenBlob) {
          window.navigator.msSaveBlob(blob, filename);
      }
      else{
          var elem = window.document.createElement('a');
          elem.href = window.URL.createObjectURL(blob);
          elem.download = filename;
          document.body.appendChild(elem);
          elem.click();
          document.body.removeChild(elem);
          URL.revokeObjectURL(); // This needs an arg but I can't figure out what
      }
      var myFile = new Blob([fileContent], {type: 'text/plain'});
      window.URL = window.URL || window.webkitURL; document.getElementById('download').setAttribute('href',window.URL.createObjectURL(myFile));
      document.getElementById('download').setAttribute('download', fileName);
  }

  // BEGIN Publish tools, via SteinHQ.com

  // publishRule()
  // Publishes existing fields to new page, /create/?rule=[ruleID]
  // Opens new page in Display mode
  function publishRule() {
      // Confirm user knows what they're getting into
      var r = confirm("Publish to the public Library?");
      if (r == false) { return; }
      // Proceed with publication
      var now = new Date();
      // Numerical ID for published Rule
      var timeID = now.getTime();
      // Readable UTC timestamp
      var dateTime = now.getUTCFullYear()+'.'+(now.getUTCMonth()+1)+'.'+now.getUTCDate()
          +' '+now.getUTCHours()+":"+ now.getUTCMinutes()+":"+now.getUTCSeconds()
          + ' UTC';
      // TKTK: Check if ruleID exists; while yes, replace and repeat
      var rule = [{
          ruleID: timeID,
          timestamp: dateTime,
      }];
      var fields = document.getElementsByClassName("editable");
      for (var i = 0; i < fields.length; i++) {
          var key = fields[i].id;
          var value = "";
          if (fields[i].nodeName == "INPUT") { // for <input>
              value = fields[i].value.replace(/(<([^>]+)>)/ig,"");
          } else { // for other fields
              value = fields[i].innerHTML.replace(/(<([^>]+)>)/ig,"");
          }
          rule[0][key] = value;
      }
      const store = new SteinStore(
          "https://api.steinhq.com/v1/storages/5e8b937ab88d3d04ae0816a5"
      );
      store.append("rules", rule).then(data => {
          window.open("/create/?r=" + timeID, "_self", false);
      });
  }

  // displayRule(ID)
  // Displays content based on ID
  function displayRule(ID) {
      const store = new SteinStore(
          "https://api.steinhq.com/v1/storages/5e8b937ab88d3d04ae0816a5"
      );     
      store.read("rules", { search: { ruleID: ID } }).then(data => {
          // only runs when we have the data from Goog:
          var rule = data[0];
          var fields = document.getElementsByClassName("editable");
          for (var i = 0; i < fields.length; i++) {
              var key = fields[i].id;
              var value = rule[key];
              if (typeof value === "undefined") {
                  value = "";
              } else if (key.includes("-")) { // links
                  document.getElementById(key).value = value;
              } else {
                  document.getElementById(key).innerHTML = value;
              }
          }
          // Publish timestamp to Rule
          document.getElementById('dateTime').innerHTML = rule['timestamp'];
          // Finish
          displayMode = false;
          toggleDisplayMode();
          document.title = rule['communityname'] + " / CommunityRule";
      });
  }

  // deleteRule()
  // A temporary placeholder that sends an email requesting rule deletion
  function deleteRule() {
      var urlParamz = new URLSearchParams(window.location.search);      
      var rID = urlParamz.get('r');
      window.open("mailto:medlab@colorado.edu?subject=Delete Rule request ("
                  + rID + ")&body=Please explain your rationale:\n");
  }
  
  // END Publish tools

  
  // FINALLY, Page loading
  // First, grab the current URL
  var urlParams = new URLSearchParams(window.location.search);
  // Determine if it is a published Rule
  if (urlParams.has('r')) {
      // If so, grab the Rule from database and enter displayMode
      var rID = urlParams.get('r');
      displayRule(rID);
  } else {
      // Otherwise, open in editMode as default
      var editMode = true;
      // switch out of editMode in special cases
      window.onload = function() {
          if ((window.location.href.indexOf("/templates/") != -1) ||
              (window.location.href.indexOf("/about/") != -1)) {
              toggleEditMode();
          }
      }
  }  
  
</script>

<article class="post">

  <header class="post-header">
    <h1 class="post-title" id="title">      
        {{ page.title }}
    </h1>

    <button class="pushButton" id="editToggle" onclick="toggleEditMode()">
      Preview</button>

  <div class="post-content">    
    {{ content }}
  </div>

  </header>
  
  <div id="rulebox">

    <span class="question">What is the community’s name?</span>
    <h1 contenteditable="true" class="editable output" id="communityname">{{ page.community-name }}</h1>

    <!-- BUILDER -->
    <div ondrop="drop(event)" ondragover="allowDrop(event)"
         class="modulebox" id="module-input">
      <span class="question" id="drag-directions">
        Drag modules from the icon at right</span>      
      <div class="button">
        <img src="{% link assets/tabler_icons/tool.svg %}" title="Modules" />
        <div class="tooltiptext" id="module-menu">
          <!-- Customizable module -->
          <span class="module" id="module-custom"
                draggable="true" ondragstart="drag(event)">
			<input contenteditable="true" placeholder="Custom..." />
            <img src="{% link assets/tabler_icons/bulb.svg %}"
                 draggable="false" />
		    <a onclick="this.parentNode.remove()" class="delete-module"
			   style="display:none">
			  <img src="{% link assets/tabler_icons/x.svg %}" /></a>
		  </span>
		  <!-- Load preset modules from _data/modules.csv -->
		  {% for module in site.data.modules %}
		  <span class="module fixed" id="module-{{ module.id }}"
			  draggable="true" ondragstart="drag(event)">
		    <span>{{ module.name }}</span>
		  <a target="_blank" href="{{ module.url }}">
			<img src="{% link assets/tabler_icons/link.svg %}"
				 draggable="false" /></a>
		  <a onclick="this.parentNode.remove()" class="delete-module"
			 style="display:none">
			<img src="{% link assets/tabler_icons/x.svg %}" /></a>
		  </span>
          {% endfor %}
        </div>
      </div>
    </div>
    <div id="builder-field">
    </div>

  <div id="authorship" class="linkbox">
    <span id="authorship-words">Created by</span>
    <input contenteditable="true" class="editable link-text" id="author-text" placeholder="Created by" />
    <span class="link-divider"><img src="{% link assets/tabler_icons/pencil.svg %}" title="Add link" /></span>
    <input contenteditable="true" class="editable link-url" id="author-url" placeholder="Creator URL (http://, https://)" type="url" pattern="http://.*|https://.*" />
    <span id="authorship-result"></span>
  </div>
  
  </div><!--#rulebox-->
 
  <div id="attribution" style="display:none;">
    <br />
    <p><a href="https://communityrule.info">
        <img src="https://communityrule.info{% link assets/CommunityRule-derived-000000.svg %}" alt="CommunityRule derived"></a></p>
    <p id="dateTime"></p>
    <p>Created with <a href="https://communityrule.info">CommunityRule</a><br />
      <a href="https://creativecommons.org/licenses/by-sa/4.0/">Creative Commons BY-SA</a></p>
    <p><strong>The Publish feature is experimental. Rules may be removed without notice</strong></p>
  </div>
  <div id="attributionMD" style="display:none;">
---

[![CommunityRule derived](https://communityrule.info{% link assets/CommunityRule-derived-000000.svg %})](https://communityrule.info)

[Creative Commons BY-SA](https://creativecommons.org/licenses/by-sa/4.0/)</div>
  
<!--  
  <button class="pushButton" id="publishRule" onclick="publishRule()"
    title="Add to the public Library">Publish</button>
  <button class="pushButton" id="toggleDisplayMode" onclick="toggleDisplayMode()"
    title="Edit this Rule into a new one">Fork</button>
  <button class="pushButton" onclick="textOutput()"
    title="Download this Rule as a Markdown text file">Export</button>
  <button class="pushButton" id="trash" onclick="deleteRule()">
    <img src="{% link assets/tabler_icons/trash.svg %}" title="Rule deletion request" />
  </button>
  <button class="pushButton"
          onclick="javascript:location.href='https://www.colorado.edu/lab/medlab/content/communityrule-user-feedback'">
    Feedback
  </button>
-->

  <span class="question">Publish and Export are not yet available for the RuleBuilder</span>
  
</article>