// ==UserScript==
// @name         AO3: Fic's Style, Blacklist, Bookmarks
// @namespace    https://github.com/Schegge
// @version      3.0
// @description  Change font, size, width, background... of a work + number of words for each chapter and estimated reading time + blacklist/savior: hide works that contain certains tags + fullscreen reading mode + bookmarks: save the position you stopped reading a fic
// @author       Schegge
// @include      http*://archiveofourown.org/*
// @grant        none
// @require      https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js
// @icon         data:image/png;base64,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
// @downloadURL none
// ==/UserScript==

(function($) {
   /*function debugging(varName, variable) {
      var message = 'FS\t[' + varName + ']';
      if (variable) {
         message += '\t(' + typeof variable + ') ' + JSON.stringify(variable);
      }
      console.log(message);
   }*/

   // BOOKMARKS
   var Bookmarks = {
      getBooks: function() {
         var bookmarks = localStorage.getItem('ficstyle_bookmarks');
         if (!bookmarks || bookmarks.charAt(0) !== '[') {
            bookmarks = '[]';
            localStorage.setItem('ficstyle_bookmarks', bookmarks);
         }
         //debugging('getBooks', JSON.parse(bookmarks));
         return JSON.parse(bookmarks.trim());
      },
      getUrl: window.location.pathname.split('/works/')[1], // work id
      getTitle: function() {
         var title = $('#workskin .preface.group h2.title.heading').text().trim();
         //debugging('getTitle heading', title);
         title = title.substring(0, 28); // to cut long titles
         if (/chapters/.test(window.location.pathname)) { // if chapter by chapter, also storaging the number of the chapter
            var chapter = $('#chapters > .chapter > div.chapter.preface.group > h3 > a').text();
            chapter = chapter.replace('Chapter ', 'ch');
            title += ' (' + chapter + ')';
            //debugging('getTitle chapter', chapter);
         }
         //debugging('getTitle final', title);
         return title;
      },
      getNewBook: function() {
         var newbook = $(document).scrollTop(); // current position of the scroll bar
         //debugging('getNewBook px', newbook);
         var chs = $('dl.stats dd.chapters').text(); // # chapters
         //debugging('getNewBook chapters', chs);
         if (/(\d+)\/\1/.test(chs) || /chapters/.test(window.location.pathname)) { // if work completed (if number/number is the same) or chapter by chapter view
            newbook = (newbook / $(document).height()).toFixed(4) + '%'; // calculate in percent
            //debugging('getNewBook %', newbook);
         }
         //debugging('getNewBook final', newbook);
         return newbook;
      },
      checkIfExist: function(a, b) {
         var books = this.getBooks();
         var url = b || this.getUrl;

         for (var i = 0; i < books.length; i++) {
            // if a bookmark already existed for the current chapter
            if (books[i][0] === url) {
               //debugging('same chapter');
               if (a === 'book') { // retrieve the bookmark
                  var book = books[i][2];
                  if (book.toString().indexOf('%') !== -1) {
                     book = book.replace('%', '');
                     book = parseFloat(book);
                     book = book * $(document).height();
                  }
                  //debugging('checkIfExist(book)', book);
                  return book;
               } else if (a === 'cancel') { // delete the old bookmark
                  //debugging('checkIfExist(cancel)', i);
                  //debugging('checkIfExist(cancel)', books[i]);
                  return i;
               } else {
                  //debugging('checkIfExist()', true);
                  return true;
               }
               // if a bookmark already existed for the current fic
            } else if (a === 'cancel' && books[i][0].split('/chapters/')[0] === url.split('/chapters/')[0]) { // delete the old bookmark
               //debugging('same fic');
               //debugging('checkIfExist(cancel)', i);
               //debugging('checkIfExist(cancel)', books[i]);
               return i;
            }
         }

         //debugging('checkIfExist', false);
         return false;
      },
      cancel: function(b) {
         var newBookmarks = this.getBooks();
         var cancel = this.checkIfExist('cancel', b);
         //debugging('cancel', cancel);
         if (cancel || cancel === 0) {
            newBookmarks.splice(cancel, 1);
         }
         return newBookmarks;
      },
      getNew: function() {
         var newBookmarks = this.cancel(); // if the the fic was already bookmarked, delete the old bookmark
         newBookmarks.push([this.getUrl, this.getTitle(), this.getNewBook()]); // add new bookmark
         //debugging('getNew', newBookmarks);
         localStorage.setItem('ficstyle_bookmarks', JSON.stringify(newBookmarks));
      }
   };

   // create bookmarks' menu
   addCSS('ficstyle-menu',
      '#menu-bookmarks ul li { display: flex!important; align-items: center; justify-content: space-between; } ' +
      '#menu-bookmarks ul li a:first-child { flex-grow: 1; font-size: .9em; } ' +
      'a.delete-book-menu { color: #900!important; } '
   );

   $('#header > ul').append('<li id="menu-bookmarks" class="dropdown" aria-haspopup="true"><a>Bookmarks</a><ul class="menu dropdown-menu" role="menu"></ul></li>');

   var books = Bookmarks.getBooks();
   if (books.length) {
      for (var z = 0; z < books.length; z++) {
         $('#menu-bookmarks > ul.menu').append('<li role="menu-item"><a href="http://archiveofourown.org/works/' + books[z][0] + '">' + books[z][1] + '</a> <a class="delete-book-menu" title="delete bookmark" data="' + books[z][0] + '">x</a></li>');
      }
   } else {
      $('#menu-bookmarks > ul.menu').append('<li role="menu-item"><a>No bookmark yet.</a></li>');
   }

   $('.delete-book-menu').on('click', function() { // delete bookmark
      //debugging('delete-book-menu');
      var newBookmarks = Bookmarks.cancel($(this).attr('data'));
      $(this).hide();
      $(this).prev().css('opacity', '.4');
      localStorage.setItem('ficstyle_bookmarks', JSON.stringify(newBookmarks));
   });

   // add estimated reading time
   var $words = $('dl.stats dd.words');
   if ($words.length) {
      $words.each(function() {
         var numWords = $(this).text().replace(/,/g, '');
         //debugging('numWorkWords', numWords);
         $(this).after('<dt>Time:</dt><dd>' + countTime(numWords) + '</dd>');
         //debugging('countTime(numWords)', countTime(numWords));
      });
   }

   function countTime(num) {
      var timeReading = parseInt(num) / 200; // 200 words per minute
      if (timeReading < 60) {
         timeReading = Math.round(timeReading) + 'min';
      } else {
         timeReading = (timeReading / 60).toFixed(2);
         timeReading = timeReading.toString().split('.');
         var minutes = Math.round(parseInt(timeReading[1]) / 100 * 60);
         timeReading = timeReading[0] + 'hr ' + minutes.toString() + 'min';
      }
      return timeReading;
   }

   // CSS changes
   function addCSS(id, css) {
      //debugging('addCSS '+ id + '.length', $('style#' + id).length);
      if (!$('style#' + id).length) $('head').append('<style id="' + id + '" type="text/css">' + css + '</style>');
      else $('style#' + id).html(css);
      //debugging('addCSS '+ id, css);
   }


   /** ONLY ON SEARCH PAGES **/
   var Blacklist = { where: 'li.blurb.group' };
   if ($(Blacklist.where).length) {
      //debugging('SEARCH PAGE');
      var BL = [];
      Blacklist.what = [
         '.tags .tag',
         '.required-tags span.text'
      ];
      Blacklist.show = localStorage.getItem('ficstyle_blacklist_show') ? localStorage.getItem('ficstyle_blacklist_show') : true;
      Blacklist.get = function() {
         if (localStorage.getItem('ficstyle_blacklist')) {
            BL = JSON.parse(localStorage.getItem('ficstyle_blacklist'));
         }
      };
      Blacklist.set = function(v) {
         var items = v ? v.replace(/\"/g, '\\\"').trim().split(',').join('","') : '';
         items = items ? '["' + items + '"]' : '[]';
         //debugging('Blacklist.set(' + w + ', ' + v + ')', items);
         localStorage.setItem('ficstyle_blacklist', items);
         this.get();
      };
      Blacklist.get();

      var Blacklisting = {
         ifMatch: function(t) {
            for (var j = 0; j < BL.length; j++) {
               var b = BL[j].trim().toLowerCase();
               if (b.length) {
                  var r = b.replace(/[.+?^${}()|[\]\\]/g, '\\$&')
                           .replace(/\*/g, '.*');
                  var reg = new RegExp('^' + r + '$');
                  //debugging('reg.test(' + t +') == ' + b, reg.test(t));
                  if (r.length && reg.test(t)) return true;
               }
            }
            return false;
         },
         findMatch: function(w) {
            $(Blacklist.where + ' ' + w).each(function() {
               var tag = $(this).text().trim().toLowerCase();
               if (tag && Blacklisting.ifMatch(tag)) {
                  //debugging('Match Found', tag);
                  if (Blacklist.show) {
                     $(this).closest(Blacklist.where).attr('data-visibility', 'hide');
                     var reasons = $(this).closest(Blacklist.where).attr('data-reasons');
                     $(this).closest(Blacklist.where).attr('data-reasons',
                        (!reasons) ? tag : reasons.trim() + ', ' + tag
                     );
                     //debugging('reasons', $(this).closest('.work.blurb.group').attr('data-reasons'));
                  } else {
                     $(this).closest(Blacklist.where).attr('data-visibility', 'remove');
                  }
               }
            });
         },
         addReasons: function() {
            $(Blacklist.where + '[data-reasons]').each(function() {
               $(this).find('h4.heading').after('<h5 class="fandoms heading reasons"><span>blacklisted</span> ' + $(this).attr('data-reasons') + '</h5>');
            });
         },
         clear: function() {
            $(Blacklist.where + '[data-visibility]').each(function() {
               $(this).removeAttr('data-visibility');
               $(this).removeAttr('data-reasons');
               if (Blacklist.show) $(this).find('.reasons').remove();
            });
         },
         search: function() {
            this.clear();
            if (!BL.length) return 'empty';
            for (var i = 0; i < Blacklist.what.length; i++) {
               this.findMatch(Blacklist.what[i]);
            }
            if (Blacklist.show) this.addReasons();
         },
         updateTextareas: function() {
            var values = BL.toString();
            //debugging('saveTextareas] [ficstyle_blacklist', values);
            $('#fs-blacklist').val(values);
            Blacklist.set(values);
            this.search();
         },
         saveTextareas: function() {
            //debugging('saveTextareas] [ficstyle_blacklist'], $('#fs-blacklist').val());
            Blacklist.set($('#fs-blacklist').val());
            this.search();
         }
      };

      addCSS('ficstyle-blacklist',
         '#menu-blacklist ul li { text-align: center!important; }' +
         '#fs-save-ta {color: #900!important; font-weight: bold; } ' +
         '#menu-blacklist textarea { font-size: .9em; line-height: 1.2em; min-height: 10em; margin: .5em!important; padding: .3em; box-shadow: 0 0 0 1px #888; width: calc(100% - 1em); border: 0; box-sizing: border-box; resize: vertical; } ' +
         '#menu-blacklist .fs-black-info { font-size: .9em; font-variant: small-caps; }' +
         '#menu-blacklist .fs-black-info span { padding: 0 2em; }' +

         Blacklist.where + '[data-visibility="remove"] { display: none; } ' +
         Blacklist.where + '[data-visibility="hide"] { opacity: .6; } ' +
         Blacklist.where + '[data-visibility="hide"] > *:not(.header), ' +
         Blacklist.where + '[data-visibility="hide"] .required-tags, ' +
         Blacklist.where + '[data-visibility="hide"] .fandoms.heading:not(.reasons) { display: none; }' +
         Blacklist.where + '[data-visibility="hide"] > .header { margin: 0!important; }' +
         Blacklist.where + '[data-visibility="hide"] .reasons > span { color: #fff; background-color: #900; padding: 0 .2em; } '
      );

      $('#header > ul').append('<li id="menu-blacklist" class="dropdown" aria-haspopup="true"><a>Blacklist</a><ul class="menu dropdown-menu" role="menu">' +
         '<li role="menu-item"><a id="fs-save-ta">SAVE</a></li>' +
         '<li role="menu-item"><textarea id="fs-blacklist"></textarea></li>' +
         '<li role="menu-item"><div class="fs-black-info"><span>separator: ,</span><span>wildcard: *</span></li>' +
         '<li role="menu-item"><a id="fs-blacklist-show">Hide blacklisted works</a>' +
         '</ul></li>');
      if (!Blacklist.show) $('#fs-blacklist-show').text('Show reasons for blacklisting');
      Blacklisting.updateTextareas();

      $('#fs-save-ta').on('click', function() {
         Blacklisting.saveTextareas();
         $(this).text('SAVED');
         setTimeout(function(){ $('#fs-save-ta').text('SAVE'); }, 1000);
      });

      $('#fs-blacklist-show').on('click', function() {
         if (Blacklist.show) {
            Blacklist.show = false;
            $('#fs-blacklist-show').text('Show reasons for blacklisting');
         } else {
            Blacklist.show = true;
            $('#fs-blacklist-show').text('Hide blacklisted works');
         }
         localStorage.setItem('ficstyle_blacklist_show', Blacklist.show);
         Blacklisting.search();
      });

   } // end search page


   /** ONLY ON THE FIC'S PAGE **/
   // include: (whatever)/works/(numbers) and (whatever)/works/(numbers)/chapters/(numbers) and exclude: navigate
   if (/\/works\/\d+(\/chapters\/\d+)?(?!.*navigate)/.test(window.location.pathname)) {
      //debugging('WORK PAGE');
      var $workskin = $('#workskin');

      // default values
      var Options = {
         fontName: [
            'inherit', // default (AO3 font)
            'Georgia',
            'Garamond',
            'Book Antiqua',
            'Verdana',
            'Segoe UI'
         ],
         fontSize: 100, //(%)
         padding: 7, //(%) (min = 0; max = 40) to change text's width
         colors: { //background, font color
            light: ['#ffffff', '#000000'], // default
            grey: ['#eeeeee', '#111111'],
            sepia: ['#fbf0d9', '#54331b'],
            dark: ['#3c3c3c', '#d2d2d2']
         }
      };

      addCSS('ficstyle-general',
         '#workskin { margin: 0; text-align: justify; max-width: none!important; } ' +
         '#main > div.wrapper, #main > div.work > div.wrapper { margin-bottom: 1em; } ' +
         '.actions { font-family: \'Lucida Grande\', \'Lucida Sans Unicode\', \'GNU Unifont\', Verdana, Helvetica, sans-serif; font-size: 14px; } ' +
         '.chapter .preface { margin-bottom: 0; } ' +
         '.chapter .preface[role="complementary"] { margin-top: 0; padding-top: 0; } ' +
         '#workskin .notes, #workskin .summary { font-family: inherit; font-size: 15px; } ' +
         '.preface.group { color: inherit; background-color: inherit; } ' +
         'div.afterword { font-size: 14px } ' +
         '#workskin #chapters, #workskin #chapters .userstuff { width: 100%!important; box-sizing: border-box; } ' +
         '#workskin #chapters .userstuff p { font-family: inherit; margin: .6em auto; text-align: justify; line-height: 1.5em; } ' +
         '#workskin #chapters .userstuff { font-family: inherit; text-align: justify; line-height: 1.5em } ' +
         '#workskin #chapters .userstuff br { display: block; margin-top: .6em; content: " "; } ' +
         '.userstuff hr { width: 100%; height: 1px; border: 0; background-image: linear-gradient(to right, transparent, rgba(0, 0, 0, .5), transparent); margin: 1.5em 0; } ' +
         '#workskin #chapters a, #chapters a:link, #chapters a:visited { color: inherit; } ' +
         'blockquote { font-family: inherit; } ' +
         '#workskin #chapters .userstuff blockquote { padding-top: 1px; padding-bottom: 1px; margin: 0 .5em; } ' +
         '.userstuff img { max-width: 100%; height: auto; display: block; margin: auto; } ' +
         '#options, .ficleft { position: fixed; bottom: 10px; margin: 0; padding: 0; font-family: Consolas, monospace; font-size: 16px; line-height: 18px; color: #000; text-shadow: 0 0 2px rgba(0, 0, 0, .4); z-index: 999; } ' +
         '#options { right: 10px; } ' +
         '.ficleft { display: none; left: 10px; } ' +
         '#options > div { display: none; margin: 5px 0 0 0; padding: 0 5px; cursor: pointer; } ' +
         '#options > div:last-child { display: block; padding: 2px 5px; color: #fff; background-color: rgba(0, 0, 0, .2); } ' +
         '.ficleft a, #options a { border: 0; color: #000; } ' +
         'div.preface .notes, div.preface .summary, div.preface .series, div.preface .children { min-height: 0; } ' +
         '.notes-hidden { cursor: pointer; position: fixed; width: 50%; max-height: 50%; left: 50px; bottom: 50px; color: rgb(42, 42, 42); background-color: #fff; padding: 10px; box-shadow: 0 0 2px 1px rgba(0, 0, 0, .4); margin: 0; overflow: auto; z-index: 999; display: none; } ' +
         '.notes-headings { cursor: pointer; border-bottom-width: 0!important; margin: 0; text-align: center; color: #666;  } ' +
         '.chapterWords { font-size: .9em; color: inherit; font-family: verdana, sans-serif; font-variant: small-caps; text-align: center; margin: 2em 0 .6em; }'
      );

      // CSS changes depending on the user
      var Variables = {
         init: function() {
            if (!localStorage.getItem('ficstyle')) {
               var all = {
                  fontName: Options.fontName[0],
                  fontSize: Options.fontSize,
                  padding: Options.padding,
                  colors: Object.keys(Options.colors)[0]
               };
               localStorage.setItem('ficstyle', JSON.stringify(all));
            }
         },
         get: function() {
            //debugging('get', JSON.stringify(localStorage.getItem('ficstyle')));
            return JSON.parse(localStorage.getItem('ficstyle'));
         },
         set: function(a, b) {
            var all = this.get();
            if (a && b) {
               switch (a) {
                  case 'fontName':
                     all.fontName = b;
                     break;
                  case 'fontSize':
                     all.fontSize = b;
                     break;
                  case 'padding':
                     all.padding = b;
                     break;
                  case 'colors':
                     all.colors = b;
                     break;
               }
               localStorage.setItem('ficstyle', JSON.stringify(all));
            }
            //debugging('set', JSON.stringify(all));
            addCSS('ficstyle-user-changes',
               '#workskin { font-family: ' + all.fontName + '; padding: 0 ' + all.padding + '%; font-size: ' + all.fontSize + '%; background-color: ' + Options.colors[all.colors][0] + '; color: ' + Options.colors[all.colors][1] + ';  }'

            );
         }
      };

      Variables.init();
      Variables.set(); // saved changes by user

      // remove all the non-breaking white spaces
      $('#chapters').html($('#chapters').html().replace(/&nbsp;/g, ' '));

      // # words and time for every chapter
      var numChapters = $('#chapters > .chapter').length; // if the fic has chapters
      //debugging('numChapters', numChapters);
      if (numChapters) {
         var chTexts = $('#chapters > .chapter > div.userstuff.module');
         chTexts.each(function() {
            var text = $(this).text().replace(/(\s-\s)|(-)/g, '').replace(/[\."“”?!\)\(]/g, ' ');
            //debugging('wordsChapter', text);
            var words = text.match(/\S+\s/g);
            //debugging('wordsChapter', words.join(' | '));
            var numWords = words.length  - 2;// -2 because of <h3 class="landmark" heading id="work">Chapter Text</h3>
            $(this).siblings('.chapter.preface.group[role="complementary"]').before(
               '<div class="chapterWords">this chapter has ' + numWords + ' words (time: ' + countTime(numWords) + ')</div>'
            );
         });
      }

      // the options displayed on the page
      $('body').append('<div id="options">' +
         '<div id="font-name-minus" title="previous font">«</div>' +
         '<div id="font-name-plus" title="next font">»</div>' +
         '<div id="font-size-minus" title="decrease font size">-</div>' +
         '<div id="font-size-plus" title="increase font size">+</div>' +
         '<div id="padding-plus" title="decrease width">&#9643;</div>' +
         '<div id="padding-minus" title="increase width">&#9633;</div>' +
         '<div id="workskin-colors" title="change background and color">&#9642;</div>' +
         '<div id="reset-local-storage" title="reset">r</div>' +
         '<div id="show-hide" title="show/hide menu">&#9776;</div>' +
         '</div>');

      $('#show-hide').on('click', function() {
         $('#options > div:nth-last-child(n+2)').slideToggle('300');
      });

      // to remain more or less in the same position in the text when changes are happening
      var percent = 0;
      var checkPosition = function() {
         percent = $(document).scrollTop() / $(document).height();
      };
      var returnBack = function() {
         var r = percent * $(document).height();
         $('html, body').scrollTop(r);
      };

      var changeVar = function(v, d, t) {
         var cur = Variables.get()[v];
         var opts, end;

         if (t === 'obj') opts = Object.keys(Options[v]);
         else opts = Options[v];

         if (d === 1) end = opts.length;
         else end = d;

         for (var i = 0; i < opts.length; i++) {
            if (cur === opts[i]) {
               var j = i + d;
               if (j === end) {
                  var u = end === d ? opts.length - 1 : 0;
                  cur = opts[u];
               } else {
                  cur = opts[j];
               }
               Variables.set(v, cur);
               break;
            }
         }
      };

      // changes triggered by the user
      $('#reset-local-storage').on('click', function() {
         checkPosition();
         localStorage.removeItem('ficstyle');
         Variables.init();
         Variables.set();
         returnBack();
      });

      $('#workskin-colors').on('click', function() {
         changeVar('colors', 1, 'obj');
      });

      $('#font-name-minus').on('click', function() {
         checkPosition();
         changeVar('fontName', -1, 'array');
         returnBack();
      });
      $('#font-name-plus').on('click', function() {
         checkPosition();
         changeVar('fontName', 1, 'array');
         returnBack();
      });

      $('#font-size-minus').on('click', function() {
         checkPosition();
         Variables.set('fontSize', Variables.get().fontSize - 2.5);
         returnBack();
      });
      $('#font-size-plus').on('click', function() {
         checkPosition();
         Variables.set('fontSize', Variables.get().fontSize + 2.5);
         returnBack();
      });

      $('#padding-plus').on('click', function() {
         checkPosition();
         var curPadding = Variables.get().padding + 1;
         if (curPadding > 40) { curPadding = 40; }
         Variables.set('padding', curPadding);
         returnBack();
      });
      $('#padding-minus').on('click', function() {
         checkPosition();
         var curPadding = Variables.get().padding - 1;
         if (curPadding < 0) { curPadding = 0; }
         Variables.set('padding', curPadding);
         returnBack();
      });

      // FULL SCREEN MODE
      $workskin.prepend('<div class="actions" style="float: right; margin: 1.5em 0; font-size: 80%;">' +
         '<div id="go-to-book" style="display: none;"><a>Go to Bookmark</a></div>' +
         '<div id="full-screen"><a>Full Screen</a></div>' +
         '</div>');

      $('body').append('<div class="ficleft">' +
         '<a id="arrow" title="up">^</a> <a id="bookmark" title="new bookmark">+</a> ' +
         '<a id="delete-book" title="delete bookmark" style="display: none;">x</a>' +
         '</div>');

      // changes to create full screen mode
      var isFullScreen = false;
      var fullScreen = function() {
         //debugging('fullScreen');
         $('#outer').children().hide();
         $('body').append($workskin);

         $('#workskin .preface').css({ 'margin': '0', 'padding-bottom': '0' });
         $('#workskin div.afterword').css('margin-bottom', '2.5em');
         $('#workskin .preface .summary .userstuff').addClass('notes-hidden');
         $('#workskin .preface .notes').each(function() {
            var $notes = $('<div class="notes-hidden"></div>');
            $(this).children('h3.heading').siblings().appendTo($notes);
            $(this).append($notes);
         });
         $('#workskin .preface .summary h3, #workskin .preface .notes h3').addClass('notes-headings')
            .each(function() {
               var text = $(this).text();
               text = text.replace(':', '');
               $(this).text(text); });

         $('#full-screen a').prepend('Exit from ');
         $('.ficleft').show();
         if (Bookmarks.checkIfExist()) {
            $('#delete-book').show();
            $('#go-to-book').show();
         }

         $(document).scrollTop(0);

         $workskin.append($('#feedback > ul.actions').css({ 'font-size': '60%', 'width': '100%', 'padding': ' 0 0 10px 0' }));
         $('#workskin > ul.actions > li:nth-child(1), #show_comments_link').remove();

         isFullScreen = true;
      };

      $('#workskin .preface .module').on('click', function() { // show/hide summary and notes
         $(this).children('.notes-hidden').fadeToggle(300);
      });

      $('#full-screen').on('click', function() { // open/close full screen mode
         if (!isFullScreen) fullScreen();
         else window.location.reload();
      });

      $('#arrow').on('click', function() { // go to top
         $('html, body').animate({ scrollTop: 0 }, 600);
      });

      $('#bookmark').on('click', function() { // set new bookmark
         //debugging('setBookmark');
         Bookmarks.getNew();
         $('#go-to-book').show();
         $('#delete-book').show();
         $('#bookmark').css('color', '#900');
         setTimeout(function() {
            $('#bookmark').css('color', 'inherit');
         }, 1500);
      });

      $('#go-to-book').on('click', function() { // go to the position of the bookmark
         //debugging('goToBook');
         var book = Bookmarks.checkIfExist('book');
         $('html, body').animate({ scrollTop: book }, 600);
      });

      $('#delete-book').on('click', function() { // delete bookmark
         //debugging('deleteBookmark');
         var newBookmarks = Bookmarks.cancel();
         localStorage.setItem('ficstyle_bookmarks', JSON.stringify(newBookmarks));
         $('#delete-book').hide();
         $('#go-to-book').hide();
      });
   } // end fic page

})(jQuery);