/* global initData, authorizationToken */

$(function(){

  const actionToggle = function(e){ 
    var el=e.target; 
    $(el).parent().siblings('.actions').show(); 
    $(el).hide(); 
  }; 

  const deleteButton = function(e){ 
    const el = $(e.target);
    const url = el.attr('href');
    $.ajax(url,{
      method: "DELETE",
      beforeSend: function(request) {
        request.setRequestHeader("authorizationToken", authorizationToken);
      }
    })  
    .done(function(data) {
     $(el).parents('.log').remove();
    })
    .fail(function() {
      alert( "error" );
    });
    return false;
  };

  const editButton = function(e){ 
    const el = $(e.target);
    const id = el.attr("rel");
    const pre = el.parents(".log").find("pre");
    $.ajax(`/get/${id}`,{
      beforeSend: function(request) {
      request.setRequestHeader("authorizationToken", authorizationToken);
      }
    })  
    .done(function(data) {
      pre
       .text(data._source.content)
       .attr('rel',id)
       .css("background","#ccc")
       .attr("contenteditable",true)
       .focus();
      $('body pre[contenteditable]').on('focusout', contentEdited );

    })
    .fail(function(data,err) {
      console.log(data,err);
      alert( "error" );
    });

    return false;
  };

  const contentEdited = function(e) { 
    const el = $(e.target);
    const id = el.attr('rel');
    const content = el.text();
    $.ajax(`/patch/${id}`,{
      method: "PATCH",
      data: {content:content},
      beforeSend: function(request) {
        request.setRequestHeader("authorizationToken", authorizationToken);
      }
    })  
    .done(function(data) {
      el
      .css("background","")
      .html( formatContent(content) );
    })
    .fail(function(data,err) {
      console.log(data,err);
      alert( "error" );
    });
  };
  
  const search = function(e){
    const el = $(e.target);
    const val = el.val();
    if( val.length < 3 ){ return; }
    $.ajax("/search",{
      beforeSend: function(request) {
      request.setRequestHeader("authorizationToken", authorizationToken);
      },
      data: {
        q:val
      }
    })  
    .done(function(data) {
      updatePage(data);
    })
    .fail(function() {
      alert( "error" );
    });
  };

  // List of HTML entities for escaping.
  var htmlEscapes = {
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#x27;',
    '/': '&#x2F;'
  };

  // Regex containing the keys listed immediately above.
  var htmlEscaper = /[&<>"'\/]/g;

  // Escape a string for HTML interpolation.
  const escape = function(string) {
    return ('' + string).replace(htmlEscaper, function(match) {
      return htmlEscapes[match];
    });
  };
  const urlRegex = /(\S+): (https?:&#x2F;&#x2F;[^\s]+)/g;
  const url = function(string){
    return ''+string.replace(urlRegex, '<a target="_blank" href="$2">$1</a>');
  };
  var titleRegex = /^(.*\n)/;
  const title = function(string){
    return ''+string.replace(titleRegex, '<b>$1</b>');
  };
  var cmdRegex = /```([^`]*?)```/g;
  const cmd = function(string) {
    return ''+string.replace(cmdRegex, '<span class="cmd">$1</span>');
  };
  const date = function(string){
    var D = new Date(string);
    return D.toLocaleDateString()+" "+D.toLocaleTimeString();
  };
  const mailRegexp = /(.*)  &lt;(.+@.+)&gt;/;
  const  mail = function( string ){
    return ''+string.replace(mailRegexp, `<a href="mailto:${string}">$1</a>`);
  };
  
  const formatContent = function(string){
    return cmd(title(url(escape(string))));
  };
  
  
  function updatePage(data){

    var content = "";
    var item = {};
    var id = '';
    // If the log entry is unique, simulate a search result
    if( ! data['hits'] ){
      data = {hits:{hits:[data]}};
    }
    $.each(data.hits.hits, (k,v)=>{

      item = v._source;
      id = v._id;
      content += `

      <div class="log row">
        <div class="meta col-lg-2 ">
        <p class="server">  ${escape(item.server)} </p>
        <a href="/log/${id}">
          ${date(escape(item.created_at))} <br/>
        </a>
        <div class="d-none d-lg-block">
            <p class="author">  ${mail(escape(item.author))} </p>
            <p>
              <a class="actions-toggle btn-link btn-sm">Actions</a>
            </p>
            <div class="actions btn-group btn-group-sm" role="group" aria-label="log actions">
              <a class="delete btn btn btn-outline-secondary" rel="${id}" href="/delete/${id}">Remove</a>
              <a class="edit btn btn btn-outline-secondary" rel="${id}" href="/edit/${id}">Edit</a>
            </div>
        </div>
        </div>
        <div class="col-lg data">
          <pre> ${formatContent(item.content)}</pre>
        </div>
      </div>
      `;
    });
    $("#content").html(content);
    
    // attache events
    $(".actions-toggle").on("click",actionToggle );
    $('.delete').on('click', deleteButton);
    $('.edit').on('click', editButton );

  }

  $("input").on("keyup",search );

  updatePage( initData );


});