gitea/web_src/js/index.js

import './publicpath.js';

import Vue from 'vue';
import {htmlEscape} from 'escape-goat';
import 'jquery.are-you-sure';

import ActivityTopAuthors from './components/ActivityTopAuthors.vue';
import attachTribute from './features/tribute.js';
import createColorPicker from './features/colorpicker.js';
import createDropzone from './features/dropzone.js';
import initClipboard from './features/clipboard.js';
import initContextPopups from './features/contextpopup.js';
import initGitGraph from './features/gitgraph.js';
import initHeatmap from './features/heatmap.js';
import initImageDiff from './features/imagediff.js';
import initMigration from './features/migration.js';
import initProject from './features/projects.js';
import initServiceWorker from './features/serviceworker.js';
import initTableSort from './features/tablesort.js';
import {createCodeEditor, createMonaco} from './features/codeeditor.js';
import {initMarkupAnchors} from './markup/anchors.js';
import {initNotificationsTable, initNotificationCount} from './features/notification.js';
import {initStopwatch} from './features/stopwatch.js';
import {showLineButton} from './code/linebutton.js';
import {initMarkupContent, initCommentContent} from './markup/content.js';
import {stripTags, mqBinarySearch} from './utils.js';
import {svg, svgs} from './svg.js';

const {AppSubUrl, AssetUrlPrefix, csrf} = window.config;

let previewFileModes;
const commentMDEditors = {};

// Silence fomantic's error logging when tabs are used without a target content element
$.fn.tab.settings.silent = true;

// Silence Vue's console advertisements in dev mode
// To use the Vue browser extension, enable the devtools option temporarily
Vue.config.productionTip = false;
Vue.config.devtools = false;

function initCommentPreviewTab($form) {
  const $tabMenu = $form.find('.tabular.menu');
  $tabMenu.find('.item').tab();
  $tabMenu.find(`.item[data-tab="${$tabMenu.data('preview')}"]`).on('click', function () {
    const $this = $(this);
    $.post($this.data('url'), {
      _csrf: csrf,
      mode: 'comment',
      context: $this.data('context'),
      text: $form.find(`.tab[data-tab="${$tabMenu.data('write')}"] textarea`).val()
    }, (data) => {
      const $previewPanel = $form.find(`.tab[data-tab="${$tabMenu.data('preview')}"]`);
      $previewPanel.html(data);
      initMarkupContent();
    });
  });

  buttonsClickOnEnter();
}

function initEditPreviewTab($form) {
  const $tabMenu = $form.find('.tabular.menu');
  $tabMenu.find('.item').tab();
  const $previewTab = $tabMenu.find(`.item[data-tab="${$tabMenu.data('preview')}"]`);
  if ($previewTab.length) {
    previewFileModes = $previewTab.data('preview-file-modes').split(',');
    $previewTab.on('click', function () {
      const $this = $(this);
      let context = `${$this.data('context')}/`;
      const mode = $this.data('markdown-mode') || 'comment';
      const treePathEl = $form.find('input#tree_path');
      if (treePathEl.length > 0) {
        context += treePathEl.val();
      }
      context = context.substring(0, context.lastIndexOf('/'));
      $.post($this.data('url'), {
        _csrf: csrf,
        mode,
        context,
        text: $form.find(`.tab[data-tab="${$tabMenu.data('write')}"] textarea`).val()
      }, (data) => {
        const $previewPanel = $form.find(`.tab[data-tab="${$tabMenu.data('preview')}"]`);
        $previewPanel.html(data);
        initMarkupContent();
      });
    });
  }
}

function initEditDiffTab($form) {
  const $tabMenu = $form.find('.tabular.menu');
  $tabMenu.find('.item').tab();
  $tabMenu.find(`.item[data-tab="${$tabMenu.data('diff')}"]`).on('click', function () {
    const $this = $(this);
    $.post($this.data('url'), {
      _csrf: csrf,
      context: $this.data('context'),
      content: $form.find(`.tab[data-tab="${$tabMenu.data('write')}"] textarea`).val()
    }, (data) => {
      const $diffPreviewPanel = $form.find(`.tab[data-tab="${$tabMenu.data('diff')}"]`);
      $diffPreviewPanel.html(data);
    });
  });
}

function initEditForm() {
  if ($('.edit.form').length === 0) {
    return;
  }

  initEditPreviewTab($('.edit.form'));
  initEditDiffTab($('.edit.form'));
}

function initBranchSelector() {
  const $selectBranch = $('.ui.select-branch');
  const $branchMenu = $selectBranch.find('.reference-list-menu');
  const $isNewIssue = $branchMenu.hasClass('new-issue');
  $branchMenu.find('.item:not(.no-select)').click(function () {
    const selectedValue = $(this).data('id');
    const editMode = $('#editing_mode').val();
    $($(this).data('id-selector')).val(selectedValue);
    if ($isNewIssue) {
      $selectBranch.find('.ui .branch-name').text($(this).data('name'));
      return;
    }

    if (editMode === 'true') {
      const form = $('#update_issueref_form');

      $.post(form.attr('action'), {
        _csrf: csrf,
        ref: selectedValue
      },
      () => {
        window.location.reload();
      });
    } else if (editMode === '') {
      $selectBranch.find('.ui .branch-name').text(selectedValue);
    }
  });
  $selectBranch.find('.reference.column').on('click', function () {
    $selectBranch.find('.scrolling.reference-list-menu').css('display', 'none');
    $selectBranch.find('.reference .text').removeClass('black');
    $($(this).data('target')).css('display', 'block');
    $(this).find('.text').addClass('black');
    return false;
  });
}

function initLabelEdit() {
// Create label
  const $newLabelPanel = $('.new-label.segment');
  $('.new-label.button').on('click', () => {
    $newLabelPanel.show();
  });
  $('.new-label.segment .cancel').on('click', () => {
    $newLabelPanel.hide();
  });

  createColorPicker($('.color-picker'));

  $('.precolors .color').on('click', function () {
    const color_hex = $(this).data('color-hex');
    $('.color-picker').val(color_hex);
    $('.minicolors-swatch-color').css('background-color', color_hex);
  });
  $('.edit-label-button').on('click', function () {
    $('.edit-label .color-picker').minicolors('value', $(this).data('color'));
    $('#label-modal-id').val($(this).data('id'));
    $('.edit-label .new-label-input').val($(this).data('title'));
    $('.edit-label .new-label-desc-input').val($(this).data('description'));
    $('.edit-label .color-picker').val($(this).data('color'));
    $('.edit-label .minicolors-swatch-color').css('background-color', $(this).data('color'));
    $('.edit-label.modal').modal({
      onApprove() {
        $('.edit-label.form').trigger('submit');
      }
    }).modal('show');
    return false;
  });
}

function updateIssuesMeta(url, action, issueIds, elementId) {
  return new Promise(((resolve) => {
    $.ajax({
      type: 'POST',
      url,
      data: {
        _csrf: csrf,
        action,
        issue_ids: issueIds,
        id: elementId,
      },
      success: resolve
    });
  }));
}

function initRepoStatusChecker() {
  const migrating = $('#repo_migrating');
  $('#repo_migrating_failed').hide();
  $('#repo_migrating_failed_image').hide();
  $('#repo_migrating_progress_message').hide();
  if (migrating) {
    const task = migrating.attr('task');
    if (typeof task === 'undefined') {
      return;
    }
    $.ajax({
      type: 'GET',
      url: `${AppSubUrl}/user/task/${task}`,
      data: {
        _csrf: csrf,
      },
      complete(xhr) {
        if (xhr.status === 200 && xhr.responseJSON) {
          if (xhr.responseJSON.status === 4) {
            window.location.reload();
            return;
          } else if (xhr.responseJSON.status === 3) {
            $('#repo_migrating_progress').hide();
            $('#repo_migrating').hide();
            $('#repo_migrating_failed').show();
            $('#repo_migrating_failed_image').show();
            $('#repo_migrating_failed_error').text(xhr.responseJSON.message);
            return;
          }
          if (xhr.responseJSON.message) {
            $('#repo_migrating_progress_message').show();
            $('#repo_migrating_progress_message').text(xhr.responseJSON.message);
          }
          setTimeout(() => {
            initRepoStatusChecker();
          }, 2000);
          return;
        }
        $('#repo_migrating_progress').hide();
        $('#repo_migrating').hide();
        $('#repo_migrating_failed').show();
        $('#repo_migrating_failed_image').show();
      }
    });
  }
}

function initReactionSelector(parent) {
  let reactions = '';
  if (!parent) {
    parent = $(document);
    reactions = '.reactions > ';
  }

  parent.find(`${reactions}a.label`).popup({position: 'bottom left', metadata: {content: 'title', title: 'none'}});

  parent.find(`.select-reaction > .menu > .item, ${reactions}a.label`).on('click', function (e) {
    e.preventDefault();

    if ($(this).hasClass('disabled')) return;

    const actionURL = $(this).hasClass('item') ? $(this).closest('.select-reaction').data('action-url') : $(this).data('action-url');
    const url = `${actionURL}/${$(this).hasClass('blue') ? 'unreact' : 'react'}`;
    $.ajax({
      type: 'POST',
      url,
      data: {
        _csrf: csrf,
        content: $(this).data('content')
      }
    }).done((resp) => {
      if (resp && (resp.html || resp.empty)) {
        const content = $(this).closest('.content');
        let react = content.find('.segment.reactions');
        if ((!resp.empty || resp.html === '') && react.length > 0) {
          react.remove();
        }
        if (!resp.empty) {
          react = $('<div class="ui attached segment reactions"></div>');
          const attachments = content.find('.segment.bottom:first');
          if (attachments.length > 0) {
            react.insertBefore(attachments);
          } else {
            react.appendTo(content);
          }
          react.html(resp.html);
          react.find('.dropdown').dropdown();
          initReactionSelector(react);
        }
      }
    });
  });
}

function insertAtCursor(field, value) {
  if (field.selectionStart || field.selectionStart === 0) {
    const startPos = field.selectionStart;
    const endPos = field.selectionEnd;
    field.value = field.value.substring(0, startPos) + value + field.value.substring(endPos, field.value.length);
    field.selectionStart = startPos + value.length;
    field.selectionEnd = startPos + value.length;
  } else {
    field.value += value;
  }
}

function replaceAndKeepCursor(field, oldval, newval) {
  if (field.selectionStart || field.selectionStart === 0) {
    const startPos = field.selectionStart;
    const endPos = field.selectionEnd;
    field.value = field.value.replace(oldval, newval);
    field.selectionStart = startPos + newval.length - oldval.length;
    field.selectionEnd = endPos + newval.length - oldval.length;
  } else {
    field.value = field.value.replace(oldval, newval);
  }
}

function getPastedImages(e) {
  if (!e.clipboardData) return [];

  const files = [];
  for (const item of e.clipboardData.items || []) {
    if (!item.type || !item.type.startsWith('image/')) continue;
    files.push(item.getAsFile());
  }

  if (files.length) {
    e.preventDefault();
    e.stopPropagation();
  }
  return files;
}

async function uploadFile(file, uploadUrl) {
  const formData = new FormData();
  formData.append('file', file, file.name);

  const res = await fetch(uploadUrl, {
    method: 'POST',
    headers: {'X-Csrf-Token': csrf},
    body: formData,
  });
  return await res.json();
}

function reload() {
  window.location.reload();
}

function initImagePaste(target) {
  target.each(function () {
    const dropzone = this.querySelector('.dropzone');
    if (!dropzone) {
      return;
    }
    const uploadUrl = dropzone.dataset.uploadUrl;
    const dropzoneFiles = dropzone.querySelector('.files');
    for (const textarea of this.querySelectorAll('textarea')) {
      textarea.addEventListener('paste', async (e) => {
        for (const img of getPastedImages(e)) {
          const name = img.name.substr(0, img.name.lastIndexOf('.'));
          insertAtCursor(textarea, `![${name}]()`);
          const data = await uploadFile(img, uploadUrl);
          replaceAndKeepCursor(textarea, `![${name}]()`, `![${name}](${AppSubUrl}/attachments/${data.uuid})`);
          const input = $(`<input id="${data.uuid}" name="files" type="hidden">`).val(data.uuid);
          dropzoneFiles.appendChild(input[0]);
        }
      }, false);
    }
  });
}

function initSimpleMDEImagePaste(simplemde, dropzone, files) {
  const uploadUrl = dropzone.dataset.uploadUrl;
  simplemde.codemirror.on('paste', async (_, e) => {
    for (const img of getPastedImages(e)) {
      const name = img.name.substr(0, img.name.lastIndexOf('.'));
      const data = await uploadFile(img, uploadUrl);
      const pos = simplemde.codemirror.getCursor();
      simplemde.codemirror.replaceRange(`![${name}](${AppSubUrl}/attachments/${data.uuid})`, pos);
      const input = $(`<input id="${data.uuid}" name="files" type="hidden">`).val(data.uuid);
      files.append(input);
    }
  });
}

let autoSimpleMDE;

function initCommentForm() {
  if ($('.comment.form').length === 0) {
    return;
  }

  autoSimpleMDE = setCommentSimpleMDE($('.comment.form textarea:not(.review-textarea)'));
  initBranchSelector();
  initCommentPreviewTab($('.comment.form'));
  initImagePaste($('.comment.form'));

  // Listsubmit
  function initListSubmits(selector, outerSelector) {
    const $list = $(`.ui.${outerSelector}.list`);
    const $noSelect = $list.find('.no-select');
    const $listMenu = $(`.${selector} .menu`);
    let hasUpdateAction = $listMenu.data('action') === 'update';
    const items = {};

    $(`.${selector}`).dropdown('setting', 'onHide', () => {
      hasUpdateAction = $listMenu.data('action') === 'update'; // Update the var
      if (hasUpdateAction) {
        const promises = [];
        Object.keys(items).forEach((elementId) => {
          const item = items[elementId];
          const promise = updateIssuesMeta(
            item['update-url'],
            item.action,
            item['issue-id'],
            elementId,
          );
          promises.push(promise);
        });
        Promise.all(promises).then(reload);
      }
    });

    $listMenu.find('.item:not(.no-select)').on('click', function (e) {
      e.preventDefault();
      if ($(this).hasClass('ban-change')) {
        return false;
      }

      hasUpdateAction = $listMenu.data('action') === 'update'; // Update the var
      if ($(this).hasClass('checked')) {
        $(this).removeClass('checked');
        $(this).find('.octicon-check').addClass('invisible');
        if (hasUpdateAction) {
          if (!($(this).data('id') in items)) {
            items[$(this).data('id')] = {
              'update-url': $listMenu.data('update-url'),
              action: 'detach',
              'issue-id': $listMenu.data('issue-id'),
            };
          } else {
            delete items[$(this).data('id')];
          }
        }
      } else {
        $(this).addClass('checked');
        $(this).find('.octicon-check').removeClass('invisible');
        if (hasUpdateAction) {
          if (!($(this).data('id') in items)) {
            items[$(this).data('id')] = {
              'update-url': $listMenu.data('update-url'),
              action: 'attach',
              'issue-id': $listMenu.data('issue-id'),
            };
          } else {
            delete items[$(this).data('id')];
          }
        }
      }

      // TODO: Which thing should be done for choosing review requests
      // to make chosen items be shown on time here?
      if (selector === 'select-reviewers-modify' || selector === 'select-assignees-modify') {
        return false;
      }

      const listIds = [];
      $(this).parent().find('.item').each(function () {
        if ($(this).hasClass('checked')) {
          listIds.push($(this).data('id'));
          $($(this).data('id-selector')).removeClass('hide');
        } else {
          $($(this).data('id-selector')).addClass('hide');
        }
      });
      if (listIds.length === 0) {
        $noSelect.removeClass('hide');
      } else {
        $noSelect.addClass('hide');
      }
      $($(this).parent().data('id')).val(listIds.join(','));
      return false;
    });
    $listMenu.find('.no-select.item').on('click', function (e) {
      e.preventDefault();
      if (hasUpdateAction) {
        updateIssuesMeta(
          $listMenu.data('update-url'),
          'clear',
          $listMenu.data('issue-id'),
          '',
        ).then(reload);
      }

      $(this).parent().find('.item').each(function () {
        $(this).removeClass('checked');
        $(this).find('.octicon').addClass('invisible');
      });

      if (selector === 'select-reviewers-modify' || selector === 'select-assignees-modify') {
        return false;
      }

      $list.find('.item').each(function () {
        $(this).addClass('hide');
      });
      $noSelect.removeClass('hide');
      $($(this).parent().data('id')).val('');
    });
  }

  // Init labels and assignees
  initListSubmits('select-label', 'labels');
  initListSubmits('select-assignees', 'assignees');
  initListSubmits('select-assignees-modify', 'assignees');
  initListSubmits('select-reviewers-modify', 'assignees');

  function selectItem(select_id, input_id) {
    const $menu = $(`${select_id} .menu`);
    const $list = $(`.ui${select_id}.list`);
    const hasUpdateAction = $menu.data('action') === 'update';

    $menu.find('.item:not(.no-select)').on('click', function () {
      $(this).parent().find('.item').each(function () {
        $(this).removeClass('selected active');
      });

      $(this).addClass('selected active');
      if (hasUpdateAction) {
        updateIssuesMeta(
          $menu.data('update-url'),
          '',
          $menu.data('issue-id'),
          $(this).data('id'),
        ).then(reload);
      }

      let icon = '';
      if (input_id === '#milestone_id') {
        icon = svg('octicon-milestone', 18, 'mr-3');
      } else if (input_id === '#project_id') {
        icon = svg('octicon-project', 18, 'mr-3');
      } else if (input_id === '#assignee_id') {
        icon = `<img class="ui avatar image mr-3" src=${$(this).data('avatar')}>`;
      }

      $list.find('.selected').html(`
        <a class="item muted sidebar-item-link" href=${$(this).data('href')}>
          ${icon}
          ${htmlEscape($(this).text())}
        </a>
      `);

      $(`.ui${select_id}.list .no-select`).addClass('hide');
      $(input_id).val($(this).data('id'));
    });
    $menu.find('.no-select.item').on('click', function () {
      $(this).parent().find('.item:not(.no-select)').each(function () {
        $(this).removeClass('selected active');
      });

      if (hasUpdateAction) {
        updateIssuesMeta(
          $menu.data('update-url'),
          '',
          $menu.data('issue-id'),
          $(this).data('id'),
        ).then(reload);
      }

      $list.find('.selected').html('');
      $list.find('.no-select').removeClass('hide');
      $(input_id).val('');
    });
  }

  // Milestone, Assignee, Project
  selectItem('.select-project', '#project_id');
  selectItem('.select-milestone', '#milestone_id');
  selectItem('.select-assignee', '#assignee_id');
}

function initInstall() {
  if ($('.install').length === 0) {
    return;
  }

  if ($('#db_host').val() === '') {
    $('#db_host').val('127.0.0.1:3306');
    $('#db_user').val('gitea');
    $('#db_name').val('gitea');
  }

  // Database type change detection.
  $('#db_type').on('change', function () {
    const sqliteDefault = 'data/gitea.db';
    const tidbDefault = 'data/gitea_tidb';

    const dbType = $(this).val();
    if (dbType === 'SQLite3') {
      $('#sql_settings').hide();
      $('#pgsql_settings').hide();
      $('#mysql_settings').hide();
      $('#sqlite_settings').show();

      if (dbType === 'SQLite3' && $('#db_path').val() === tidbDefault) {
        $('#db_path').val(sqliteDefault);
      }
      return;
    }

    const dbDefaults = {
      MySQL: '127.0.0.1:3306',
      PostgreSQL: '127.0.0.1:5432',
      MSSQL: '127.0.0.1:1433'
    };

    $('#sqlite_settings').hide();
    $('#sql_settings').show();

    $('#pgsql_settings').toggle(dbType === 'PostgreSQL');
    $('#mysql_settings').toggle(dbType === 'MySQL');
    $.each(dbDefaults, (_type, defaultHost) => {
      if ($('#db_host').val() === defaultHost) {
        $('#db_host').val(dbDefaults[dbType]);
        return false;
      }
    });
  });

  // TODO: better handling of exclusive relations.
  $('#offline-mode input').on('change', function () {
    if ($(this).is(':checked')) {
      $('#disable-gravatar').checkbox('check');
      $('#federated-avatar-lookup').checkbox('uncheck');
    }
  });
  $('#disable-gravatar input').on('change', function () {
    if ($(this).is(':checked')) {
      $('#federated-avatar-lookup').checkbox('uncheck');
    } else {
      $('#offline-mode').checkbox('uncheck');
    }
  });
  $('#federated-avatar-lookup input').on('change', function () {
    if ($(this).is(':checked')) {
      $('#disable-gravatar').checkbox('uncheck');
      $('#offline-mode').checkbox('uncheck');
    }
  });
  $('#enable-openid-signin input').on('change', function () {
    if ($(this).is(':checked')) {
      if (!$('#disable-registration input').is(':checked')) {
        $('#enable-openid-signup').checkbox('check');
      }
    } else {
      $('#enable-openid-signup').checkbox('uncheck');
    }
  });
  $('#disable-registration input').on('change', function () {
    if ($(this).is(':checked')) {
      $('#enable-captcha').checkbox('uncheck');
      $('#enable-openid-signup').checkbox('uncheck');
    } else {
      $('#enable-openid-signup').checkbox('check');
    }
  });
  $('#enable-captcha input').on('change', function () {
    if ($(this).is(':checked')) {
      $('#disable-registration').checkbox('uncheck');
    }
  });
}

function initIssueComments() {
  if ($('.repository.view.issue .timeline').length === 0) return;

  $('.re-request-review').on('click', function (event) {
    const url = $(this).data('update-url');
    const issueId = $(this).data('issue-id');
    const id = $(this).data('id');
    const isChecked = $(this).hasClass('checked');

    event.preventDefault();
    updateIssuesMeta(
      url,
      isChecked ? 'detach' : 'attach',
      issueId,
      id,
    ).then(reload);
    return false;
  });

  $('.dismiss-review-btn').on('click', function (e) {
    e.preventDefault();
    const $this = $(this);
    const $dismissReviewModal = $this.next();
    $dismissReviewModal.modal('show');
  });

  $(document).on('click', (event) => {
    const urlTarget = $(':target');
    if (urlTarget.length === 0) return;

    const urlTargetId = urlTarget.attr('id');
    if (!urlTargetId) return;
    if (!/^(issue|pull)(comment)?-\d+$/.test(urlTargetId)) return;

    const $target = $(event.target);

    if ($target.closest(`#${urlTargetId}`).length === 0) {
      const scrollPosition = $(window).scrollTop();
      window.location.hash = '';
      $(window).scrollTop(scrollPosition);
      window.history.pushState(null, null, ' ');
    }
  });
}

function getArchive($target, url, first) {
  $.ajax({
    url,
    type: 'POST',
    data: {
      _csrf: csrf,
    },
    complete(xhr) {
      if (xhr.status === 200) {
        if (!xhr.responseJSON) {
          // XXX Shouldn't happen?
          $target.closest('.dropdown').children('i').removeClass('loading');
          return;
        }

        if (!xhr.responseJSON.complete) {
          $target.closest('.dropdown').children('i').addClass('loading');
          // Wait for only three quarters of a second initially, in case it's
          // quickly archived.
          setTimeout(() => {
            getArchive($target, url, false);
          }, first ? 750 : 2000);
        } else {
          // We don't need to continue checking.
          $target.closest('.dropdown').children('i').removeClass('loading');
          window.location.href = url;
        }
      }
    }
  });
}

function initArchiveLinks() {
  if ($('.archive-link').length === 0) {
    return;
  }

  $('.archive-link').on('click', function (event) {
    const url = $(this).data('url');
    if (typeof url === 'undefined') {
      return;
    }

    event.preventDefault();
    getArchive($(event.target), url, true);
  });
}

async function initRepository() {
  if ($('.repository').length === 0) {
    return;
  }

  function initFilterSearchDropdown(selector) {
    const $dropdown = $(selector);
    $dropdown.dropdown({
      fullTextSearch: true,
      selectOnKeydown: false,
      onChange(_text, _value, $choice) {
        if ($choice.data('url')) {
          window.location.href = $choice.data('url');
        }
      },
      message: {noResults: $dropdown.data('no-results')}
    });
  }

  // Commit statuses
  $('.commit-statuses-trigger').each(function () {
    $(this)
      .popup({
        on: 'click',
        position: ($('.repository.file.list').length > 0 ? 'right center' : 'left center'),
      });
  });

  // File list and commits
  if ($('.repository.file.list').length > 0 ||
    $('.repository.commits').length > 0 || $('.repository.release').length > 0) {
    initFilterBranchTagDropdown('.choose.reference .dropdown');
  }

  // Wiki
  if ($('.repository.wiki.view').length > 0) {
    initFilterSearchDropdown('.choose.page .dropdown');
  }

  // Options
  if ($('.repository.settings.options').length > 0) {
    // Enable or select internal/external wiki system and issue tracker.
    $('.enable-system').on('change', function () {
      if (this.checked) {
        $($(this).data('target')).removeClass('disabled');
        if (!$(this).data('context')) $($(this).data('context')).addClass('disabled');
      } else {
        $($(this).data('target')).addClass('disabled');
        if (!$(this).data('context')) $($(this).data('context')).removeClass('disabled');
      }
    });
    $('.enable-system-radio').on('change', function () {
      if (this.value === 'false') {
        $($(this).data('target')).addClass('disabled');
        if (typeof $(this).data('context') !== 'undefined') $($(this).data('context')).removeClass('disabled');
      } else if (this.value === 'true') {
        $($(this).data('target')).removeClass('disabled');
        if (typeof $(this).data('context') !== 'undefined') $($(this).data('context')).addClass('disabled');
      }
    });
  }

  // Labels
  if ($('.repository.labels').length > 0) {
    initLabelEdit();
  }

  // Milestones
  if ($('.repository.new.milestone').length > 0) {
    $('#clear-date').on('click', () => {
      $('#deadline').val('');
      return false;
    });
  }

  // Repo Creation
  if ($('.repository.new.repo').length > 0) {
    $('input[name="gitignores"], input[name="license"]').on('change', () => {
      const gitignores = $('input[name="gitignores"]').val();
      const license = $('input[name="license"]').val();
      if (gitignores || license) {
        $('input[name="auto_init"]').prop('checked', true);
      }
    });
  }

  // Issues
  if ($('.repository.view.issue').length > 0) {
    // Edit issue title
    const $issueTitle = $('#issue-title');
    const $editInput = $('#edit-title-input input');
    const editTitleToggle = function () {
      $issueTitle.toggle();
      $('.not-in-edit').toggle();
      $('#edit-title-input').toggle();
      $('#pull-desc').toggle();
      $('#pull-desc-edit').toggle();
      $('.in-edit').toggle();
      $('#issue-title-wrapper').toggleClass('edit-active');
      $editInput.focus();
      return false;
    };

    const changeBranchSelect = function () {
      const selectionTextField = $('#pull-target-branch');

      const baseName = selectionTextField.data('basename');
      const branchNameNew = $(this).data('branch');
      const branchNameOld = selectionTextField.data('branch');

      // Replace branch name to keep translation from HTML template
      selectionTextField.html(selectionTextField.html().replace(
        `${baseName}:${branchNameOld}`,
        `${baseName}:${branchNameNew}`
      ));
      selectionTextField.data('branch', branchNameNew); // update branch name in setting
    };
    $('#branch-select > .item').on('click', changeBranchSelect);

    $('#edit-title').on('click', editTitleToggle);
    $('#cancel-edit-title').on('click', editTitleToggle);
    $('#save-edit-title').on('click', editTitleToggle).on('click', function () {
      const pullrequest_targetbranch_change = function (update_url) {
        const targetBranch = $('#pull-target-branch').data('branch');
        const $branchTarget = $('#branch_target');
        if (targetBranch === $branchTarget.text()) {
          return false;
        }
        $.post(update_url, {
          _csrf: csrf,
          target_branch: targetBranch
        }).done((data) => {
          $branchTarget.text(data.base_branch);
        }).always(() => {
          reload();
        });
      };

      const pullrequest_target_update_url = $(this).data('target-update-url');
      if ($editInput.val().length === 0 || $editInput.val() === $issueTitle.text()) {
        $editInput.val($issueTitle.text());
        pullrequest_targetbranch_change(pullrequest_target_update_url);
      } else {
        $.post($(this).data('update-url'), {
          _csrf: csrf,
          title: $editInput.val()
        }, (data) => {
          $editInput.val(data.title);
          $issueTitle.text(data.title);
          pullrequest_targetbranch_change(pullrequest_target_update_url);
          reload();
        });
      }
      return false;
    });

    // Toggle WIP
    $('.toggle-wip a, .toggle-wip button').on('click', async (e) => {
      e.preventDefault();
      const {title, wipPrefix, updateUrl} = e.currentTarget.closest('.toggle-wip').dataset;
      await $.post(updateUrl, {
        _csrf: csrf,
        title: title?.startsWith(wipPrefix) ? title.substr(wipPrefix.length).trim() : `${wipPrefix.trim()} ${title}`,
      });
      reload();
    });

    // Issue Comments
    initIssueComments();

    // Issue/PR Context Menus
    $('.context-dropdown').dropdown({
      action: 'hide'
    });

    // Previous/Next code review conversation
    $(document).on('click', '.previous-conversation', (e) => {
      const $conversation = $(e.currentTarget).closest('.comment-code-cloud');
      const $conversations = $('.comment-code-cloud:not(.hide)');
      const index = $conversations.index($conversation);
      const previousIndex = index > 0 ? index - 1 : $conversations.length - 1;
      const $previousConversation = $conversations.eq(previousIndex);
      const anchor = $previousConversation.find('.comment').first().attr('id');
      window.location.href = `#${anchor}`;
    });
    $(document).on('click', '.next-conversation', (e) => {
      const $conversation = $(e.currentTarget).closest('.comment-code-cloud');
      const $conversations = $('.comment-code-cloud:not(.hide)');
      const index = $conversations.index($conversation);
      const nextIndex = index < $conversations.length - 1 ? index + 1 : 0;
      const $nextConversation = $conversations.eq(nextIndex);
      const anchor = $nextConversation.find('.comment').first().attr('id');
      window.location.href = `#${anchor}`;
    });

    // Quote reply
    $(document).on('click', '.quote-reply', function (event) {
      $(this).closest('.dropdown').find('.menu').toggle('visible');
      const target = $(this).data('target');
      const quote = $(`#comment-${target}`).text().replace(/\n/g, '\n> ');
      const content = `> ${quote}\n\n`;
      let $simplemde = autoSimpleMDE;
      if ($(this).hasClass('quote-reply-diff')) {
        const $parent = $(this).closest('.comment-code-cloud');
        $parent.find('button.comment-form-reply').trigger('click');
        $simplemde = $parent.find('[name="content"]').data('simplemde');
      }
      if ($simplemde !== null) {
        if ($simplemde.value() !== '') {
          $simplemde.value(`${$simplemde.value()}\n\n${content}`);
        } else {
          $simplemde.value(`${content}`);
        }
      }
      requestAnimationFrame(() => {
        $simplemde.codemirror.focus();
        $simplemde.codemirror.setCursor($simplemde.codemirror.lineCount(), 0);
      });
      event.preventDefault();
    });

    // Reference issue
    $(document).on('click', '.reference-issue', function (event) {
      const $this = $(this);

      $this.closest('.dropdown').find('.menu').toggle('visible');

      const content = $(`#comment-${$this.data('target')}`).text();
      const subject = content.split('\n', 1)[0].slice(0, 255);

      const poster = $this.data('poster');
      const reference = $this.data('reference');

      const $modal = $($this.data('modal'));
      $modal.find('input[name="title"').val(subject);
      $modal.find('textarea[name="content"]').val(`${content}\n\n_Originally posted by @${poster} in ${reference}_`);

      $modal.modal('show');

      event.preventDefault();
    });

    // Edit issue or comment content
    $(document).on('click', '.edit-content', async function (event) {
      $(this).closest('.dropdown').find('.menu').toggle('visible');
      const $segment = $(this).closest('.header').next();
      const $editContentZone = $segment.find('.edit-content-zone');
      const $renderContent = $segment.find('.render-content');
      const $rawContent = $segment.find('.raw-content');
      let $textarea;
      let $simplemde;

      // Setup new form
      if ($editContentZone.html().length === 0) {
        $editContentZone.html($('#edit-content-form').html());
        $textarea = $editContentZone.find('textarea');
        attachTribute($textarea.get(), {mentions: true, emoji: true});

        let dz;
        const $dropzone = $editContentZone.find('.dropzone');
        if ($dropzone.length === 1) {
          $dropzone.data('saved', false);

          const filenameDict = {};
          dz = await createDropzone($dropzone[0], {
            url: $dropzone.data('upload-url'),
            headers: {'X-Csrf-Token': csrf},
            maxFiles: $dropzone.data('max-file'),
            maxFilesize: $dropzone.data('max-size'),
            acceptedFiles: (['*/*', ''].includes($dropzone.data('accepts'))) ? null : $dropzone.data('accepts'),
            addRemoveLinks: true,
            dictDefaultMessage: $dropzone.data('default-message'),
            dictInvalidFileType: $dropzone.data('invalid-input-type'),
            dictFileTooBig: $dropzone.data('file-too-big'),
            dictRemoveFile: $dropzone.data('remove-file'),
            timeout: 0,
            thumbnailMethod: 'contain',
            thumbnailWidth: 480,
            thumbnailHeight: 480,
            init() {
              this.on('success', (file, data) => {
                filenameDict[file.name] = {
                  uuid: data.uuid,
                  submitted: false
                };
                const input = $(`<input id="${data.uuid}" name="files" type="hidden">`).val(data.uuid);
                $dropzone.find('.files').append(input);
              });
              this.on('removedfile', (file) => {
                if (!(file.name in filenameDict)) {
                  return;
                }
                $(`#${filenameDict[file.name].uuid}`).remove();
                if ($dropzone.data('remove-url') && !filenameDict[file.name].submitted) {
                  $.post($dropzone.data('remove-url'), {
                    file: filenameDict[file.name].uuid,
                    _csrf: csrf,
                  });
                }
              });
              this.on('submit', () => {
                $.each(filenameDict, (name) => {
                  filenameDict[name].submitted = true;
                });
              });
              this.on('reload', () => {
                $.getJSON($editContentZone.data('attachment-url'), (data) => {
                  dz.removeAllFiles(true);
                  $dropzone.find('.files').empty();
                  $.each(data, function () {
                    const imgSrc = `${$dropzone.data('link-url')}/${this.uuid}`;
                    dz.emit('addedfile', this);
                    dz.emit('thumbnail', this, imgSrc);
                    dz.emit('complete', this);
                    dz.files.push(this);
                    filenameDict[this.name] = {
                      submitted: true,
                      uuid: this.uuid
                    };
                    $dropzone.find(`img[src='${imgSrc}']`).css('max-width', '100%');
                    const input = $(`<input id="${this.uuid}" name="files" type="hidden">`).val(this.uuid);
                    $dropzone.find('.files').append(input);
                  });
                });
              });
            }
          });
          dz.emit('reload');
        }
        // Give new write/preview data-tab name to distinguish from others
        const $editContentForm = $editContentZone.find('.ui.comment.form');
        const $tabMenu = $editContentForm.find('.tabular.menu');
        $tabMenu.attr('data-write', $editContentZone.data('write'));
        $tabMenu.attr('data-preview', $editContentZone.data('preview'));
        $tabMenu.find('.write.item').attr('data-tab', $editContentZone.data('write'));
        $tabMenu.find('.preview.item').attr('data-tab', $editContentZone.data('preview'));
        $editContentForm.find('.write').attr('data-tab', $editContentZone.data('write'));
        $editContentForm.find('.preview').attr('data-tab', $editContentZone.data('preview'));
        $simplemde = setCommentSimpleMDE($textarea);
        commentMDEditors[$editContentZone.data('write')] = $simplemde;
        initCommentPreviewTab($editContentForm);
        if ($dropzone.length === 1) {
          initSimpleMDEImagePaste($simplemde, $dropzone[0], $dropzone.find('.files'));
        }

        $editContentZone.find('.cancel.button').on('click', () => {
          $renderContent.show();
          $editContentZone.hide();
          if (dz) {
            dz.emit('reload');
          }
        });
        $editContentZone.find('.save.button').on('click', () => {
          $renderContent.show();
          $editContentZone.hide();
          const $attachments = $dropzone.find('.files').find('[name=files]').map(function () {
            return $(this).val();
          }).get();
          $.post($editContentZone.data('update-url'), {
            _csrf: csrf,
            content: $textarea.val(),
            context: $editContentZone.data('context'),
            files: $attachments
          }, (data) => {
            if (data.length === 0 || data.content.length === 0) {
              $renderContent.html($('#no-content').html());
              $rawContent.text('');
            } else {
              $renderContent.html(data.content);
              $rawContent.text($textarea.val());
            }
            const $content = $segment;
            if (!$content.find('.dropzone-attachments').length) {
              if (data.attachments !== '') {
                $content.append(`
                  <div class="dropzone-attachments">
                  </div>
                `);
                $content.find('.dropzone-attachments').replaceWith(data.attachments);
              }
            } else if (data.attachments === '') {
              $content.find('.dropzone-attachments').remove();
            } else {
              $content.find('.dropzone-attachments').replaceWith(data.attachments);
            }
            if (dz) {
              dz.emit('submit');
              dz.emit('reload');
            }
            initMarkupContent();
            initCommentContent();
          });
        });
      } else {
        $textarea = $segment.find('textarea');
        $simplemde = commentMDEditors[$editContentZone.data('write')];
      }

      // Show write/preview tab and copy raw content as needed
      $editContentZone.show();
      $renderContent.hide();
      if ($textarea.val().length === 0) {
        $textarea.val($rawContent.text());
        $simplemde.value($rawContent.text());
      }
      requestAnimationFrame(() => {
        $textarea.focus();
        $simplemde.codemirror.focus();
      });
      event.preventDefault();
    });

    // Delete comment
    $(document).on('click', '.delete-comment', function () {
      const $this = $(this);
      if (window.confirm($this.data('locale'))) {
        $.post($this.data('url'), {
          _csrf: csrf
        }).done(() => {
          const $conversationHolder = $this.closest('.conversation-holder');
          $(`#${$this.data('comment-id')}`).remove();
          if ($conversationHolder.length && !$conversationHolder.find('.comment').length) {
            const path = $conversationHolder.data('path');
            const side = $conversationHolder.data('side');
            const idx = $conversationHolder.data('idx');
            const lineType = $conversationHolder.closest('tr').data('line-type');
            if (lineType === 'same') {
              $(`a.add-code-comment[data-path="${path}"][data-idx="${idx}"]`).removeClass('invisible');
            } else {
              $(`a.add-code-comment[data-path="${path}"][data-side="${side}"][data-idx="${idx}"]`).removeClass('invisible');
            }
            $conversationHolder.remove();
          }
        });
      }
      return false;
    });

    // Delete Issue dependency
    $(document).on('click', '.delete-dependency-button', (e) => {
      const {id, type} = e.currentTarget.dataset;

      $('.remove-dependency').modal({
        closable: false,
        duration: 200,
        onApprove: () => {
          $('#removeDependencyID').val(id);
          $('#dependencyType').val(type);
          $('#removeDependencyForm').trigger('submit');
        }
      }).modal('show');
    });

    // Cancel inline code comment
    $(document).on('click', '.cancel-code-comment', (e) => {
      const form = $(e.currentTarget).closest('form');
      if (form.length > 0 && form.hasClass('comment-form')) {
        form.addClass('hide');
        form.closest('.comment-code-cloud').find('button.comment-form-reply').show();
      } else {
        form.closest('.comment-code-cloud').remove();
      }
    });

    // Change status
    const $statusButton = $('#status-button');
    $('#comment-form textarea').on('keyup', function () {
      const $simplemde = $(this).data('simplemde');
      const value = ($simplemde && $simplemde.value()) ? $simplemde.value() : $(this).val();
      $statusButton.text($statusButton.data(value.length === 0 ? 'status' : 'status-and-comment'));
    });
    $statusButton.on('click', () => {
      $('#status').val($statusButton.data('status-val'));
      $('#comment-form').trigger('submit');
    });

    // Pull Request merge button
    const $mergeButton = $('.merge-button > button');
    $mergeButton.on('click', function (e) {
      e.preventDefault();
      $(`.${$(this).data('do')}-fields`).show();
      $(this).parent().hide();
      $('.instruct-toggle').hide();
      $('.instruct-content').hide();
    });
    $('.merge-button > .dropdown').dropdown({
      onChange(_text, _value, $choice) {
        if ($choice.data('do')) {
          $mergeButton.find('.button-text').text($choice.text());
          $mergeButton.data('do', $choice.data('do'));
        }
      }
    });
    $('.merge-cancel').on('click', function (e) {
      e.preventDefault();
      $(this).closest('.form').hide();
      $mergeButton.parent().show();
      $('.instruct-toggle').show();
    });

    initReactionSelector();
  }

  // Quick start and repository home
  $('#repo-clone-ssh').on('click', function () {
    $('.clone-url').text($(this).data('link'));
    $('#repo-clone-url').val($(this).data('link'));
    $(this).addClass('primary');
    $('#repo-clone-https').removeClass('primary');
    localStorage.setItem('repo-clone-protocol', 'ssh');
  });
  $('#repo-clone-https').on('click', function () {
    $('.clone-url').text($(this).data('link'));
    $('#repo-clone-url').val($(this).data('link'));
    $(this).addClass('primary');
    if ($('#repo-clone-ssh').length > 0) {
      $('#repo-clone-ssh').removeClass('primary');
      localStorage.setItem('repo-clone-protocol', 'https');
    }
  });
  $('#repo-clone-url').on('click', function () {
    $(this).select();
  });

  // Compare or pull request
  const $repoDiff = $('.repository.diff');
  if ($repoDiff.length) {
    initBranchOrTagDropdown('.choose.branch .dropdown');
    initFilterSearchDropdown('.choose.branch .dropdown');
  }

  // Pull request
  const $repoComparePull = $('.repository.compare.pull');
  if ($repoComparePull.length > 0) {
    // show pull request form
    $repoComparePull.find('button.show-form').on('click', function (e) {
      e.preventDefault();
      $repoComparePull.find('.pullrequest-form').show();
      autoSimpleMDE.codemirror.refresh();
      $(this).parent().hide();
    });
  }

  // Branches
  if ($('.repository.settings.branches').length > 0) {
    initFilterSearchDropdown('.protected-branches .dropdown');
    $('.enable-protection, .enable-whitelist, .enable-statuscheck').on('change', function () {
      if (this.checked) {
        $($(this).data('target')).removeClass('disabled');
      } else {
        $($(this).data('target')).addClass('disabled');
      }
    });
    $('.disable-whitelist').on('change', function () {
      if (this.checked) {
        $($(this).data('target')).addClass('disabled');
      }
    });
  }

  // Language stats
  if ($('.language-stats').length > 0) {
    $('.language-stats').on('click', (e) => {
      e.preventDefault();
      $('.language-stats-details, .repository-menu').slideToggle();
    });
  }
}

function initPullRequestMergeInstruction() {
  $('.show-instruction').on('click', () => {
    $('.instruct-content').toggle();
  });
}

function initRelease() {
  $(document).on('click', '.remove-rel-attach', function() {
    const uuid = $(this).data('uuid');
    const id = $(this).data('id');
    $(`input[name='attachment-del-${uuid}']`).attr('value', true);
    $(`#attachment-${id}`).hide();
  });
}

function initPullRequestReview() {
  if (window.location.hash && window.location.hash.startsWith('#issuecomment-')) {
    const commentDiv = $(window.location.hash);
    if (commentDiv) {
      // get the name of the parent id
      const groupID = commentDiv.closest('div[id^="code-comments-"]').attr('id');
      if (groupID && groupID.startsWith('code-comments-')) {
        const id = groupID.substr(14);
        $(`#show-outdated-${id}`).addClass('hide');
        $(`#code-comments-${id}`).removeClass('hide');
        $(`#code-preview-${id}`).removeClass('hide');
        $(`#hide-outdated-${id}`).removeClass('hide');
        commentDiv[0].scrollIntoView();
      }
    }
  }

  $(document).on('click', '.show-outdated', function (e) {
    e.preventDefault();
    const id = $(this).data('comment');
    $(this).addClass('hide');
    $(`#code-comments-${id}`).removeClass('hide');
    $(`#code-preview-${id}`).removeClass('hide');
    $(`#hide-outdated-${id}`).removeClass('hide');
  });

  $(document).on('click', '.hide-outdated', function (e) {
    e.preventDefault();
    const id = $(this).data('comment');
    $(this).addClass('hide');
    $(`#code-comments-${id}`).addClass('hide');
    $(`#code-preview-${id}`).addClass('hide');
    $(`#show-outdated-${id}`).removeClass('hide');
  });

  $(document).on('click', 'button.comment-form-reply', function (e) {
    e.preventDefault();
    $(this).hide();
    const form = $(this).closest('.comment-code-cloud').find('.comment-form');
    form.removeClass('hide');
    const $textarea = form.find('textarea');
    let $simplemde;
    if ($textarea.data('simplemde')) {
      $simplemde = $textarea.data('simplemde');
    } else {
      attachTribute($textarea.get(), {mentions: true, emoji: true});
      $simplemde = setCommentSimpleMDE($textarea);
      $textarea.data('simplemde', $simplemde);
    }
    $textarea.focus();
    $simplemde.codemirror.focus();
    assignMenuAttributes(form.find('.menu'));
  });

  const $reviewBox = $('.review-box');
  if ($reviewBox.length === 1) {
    setCommentSimpleMDE($reviewBox.find('textarea'));
    initImagePaste($reviewBox);
  }

  // The following part is only for diff views
  if ($('.repository.pull.diff').length === 0) {
    return;
  }

  $('.btn-review').on('click', function (e) {
    e.preventDefault();
    $(this).closest('.dropdown').find('.menu').toggle('visible');
  }).closest('.dropdown').find('.close').on('click', function (e) {
    e.preventDefault();
    $(this).closest('.menu').toggle('visible');
  });

  $('a.add-code-comment').on('click', async function (e) {
    if ($(e.target).hasClass('btn-add-single')) return; // https://github.com/go-gitea/gitea/issues/4745
    e.preventDefault();

    const isSplit = $(this).closest('.code-diff').hasClass('code-diff-split');
    const side = $(this).data('side');
    const idx = $(this).data('idx');
    const path = $(this).data('path');
    const tr = $(this).closest('tr');
    const lineType = tr.data('line-type');

    let ntr = tr.next();
    if (!ntr.hasClass('add-comment')) {
      ntr = $(`
        <tr class="add-comment" data-line-type="${lineType}">
          ${isSplit ? `
            <td class="lines-num"></td>
            <td class="lines-type-marker"></td>
            <td class="add-comment-left"></td>
            <td class="lines-num"></td>
            <td class="lines-type-marker"></td>
            <td class="add-comment-right"></td>
          ` : `
            <td colspan="2" class="lines-num"></td>
            <td class="add-comment-left add-comment-right" colspan="2"></td>
          `}
        </tr>`);
      tr.after(ntr);
    }

    const td = ntr.find(`.add-comment-${side}`);
    let commentCloud = td.find('.comment-code-cloud');
    if (commentCloud.length === 0 && !ntr.find('button[name="is_review"]').length) {
      const data = await $.get($(this).data('new-comment-url'));
      td.html(data);
      commentCloud = td.find('.comment-code-cloud');
      assignMenuAttributes(commentCloud.find('.menu'));
      td.find("input[name='line']").val(idx);
      td.find("input[name='side']").val(side === 'left' ? 'previous' : 'proposed');
      td.find("input[name='path']").val(path);
      const $textarea = commentCloud.find('textarea');
      attachTribute($textarea.get(), {mentions: true, emoji: true});
      const $simplemde = setCommentSimpleMDE($textarea);
      $textarea.focus();
      $simplemde.codemirror.focus();
    }
  });
}

function assignMenuAttributes(menu) {
  const id = Math.floor(Math.random() * Math.floor(1000000));
  menu.attr('data-write', menu.attr('data-write') + id);
  menu.attr('data-preview', menu.attr('data-preview') + id);
  menu.find('.item').each(function () {
    const tab = $(this).attr('data-tab') + id;
    $(this).attr('data-tab', tab);
  });
  menu.parent().find("*[data-tab='write']").attr('data-tab', `write${id}`);
  menu.parent().find("*[data-tab='preview']").attr('data-tab', `preview${id}`);
  initCommentPreviewTab(menu.parent('.form'));
  return id;
}

function initRepositoryCollaboration() {
  // Change collaborator access mode
  $('.access-mode.menu .item').on('click', function () {
    const $menu = $(this).parent();
    $.post($menu.data('url'), {
      _csrf: csrf,
      uid: $menu.data('uid'),
      mode: $(this).data('value')
    });
  });
}

function initTeamSettings() {
  // Change team access mode
  $('.organization.new.team input[name=permission]').on('change', () => {
    const val = $('input[name=permission]:checked', '.organization.new.team').val();
    if (val === 'admin') {
      $('.organization.new.team .team-units').hide();
    } else {
      $('.organization.new.team .team-units').show();
    }
  });
}

function initWikiForm() {
  const $editArea = $('.repository.wiki textarea#edit_area');
  let sideBySideChanges = 0;
  let sideBySideTimeout = null;
  let hasSimpleMDE = true;
  if ($editArea.length > 0) {
    const simplemde = new SimpleMDE({
      autoDownloadFontAwesome: false,
      element: $editArea[0],
      forceSync: true,
      previewRender(plainText, preview) { // Async method
        // FIXME: still send render request when return back to edit mode
        const render = function () {
          sideBySideChanges = 0;
          if (sideBySideTimeout !== null) {
            clearTimeout(sideBySideTimeout);
            sideBySideTimeout = null;
          }
          $.post($editArea.data('url'), {
            _csrf: csrf,
            mode: 'gfm',
            context: $editArea.data('context'),
            text: plainText,
            wiki: true
          }, (data) => {
            preview.innerHTML = `<div class="markup ui segment">${data}</div>`;
            initMarkupContent();
          });
        };

        setTimeout(() => {
          if (!simplemde.isSideBySideActive()) {
            render();
          } else {
            // delay preview by keystroke counting
            sideBySideChanges++;
            if (sideBySideChanges > 10) {
              render();
            }
            // or delay preview by timeout
            if (sideBySideTimeout !== null) {
              clearTimeout(sideBySideTimeout);
              sideBySideTimeout = null;
            }
            sideBySideTimeout = setTimeout(render, 600);
          }
        }, 0);
        if (!simplemde.isSideBySideActive()) {
          return 'Loading...';
        }
        return preview.innerHTML;
      },
      renderingConfig: {
        singleLineBreaks: false
      },
      indentWithTabs: false,
      tabSize: 4,
      spellChecker: false,
      toolbar: ['bold', 'italic', 'strikethrough', '|',
        'heading-1', 'heading-2', 'heading-3', 'heading-bigger', 'heading-smaller', '|',
        {
          name: 'code-inline',
          action(e) {
            const cm = e.codemirror;
            const selection = cm.getSelection();
            cm.replaceSelection(`\`${selection}\``);
            if (!selection) {
              const cursorPos = cm.getCursor();
              cm.setCursor(cursorPos.line, cursorPos.ch - 1);
            }
            cm.focus();
          },
          className: 'fa fa-angle-right',
          title: 'Add Inline Code',
        }, 'code', 'quote', '|', {
          name: 'checkbox-empty',
          action(e) {
            const cm = e.codemirror;
            cm.replaceSelection(`\n- [ ] ${cm.getSelection()}`);
            cm.focus();
          },
          className: 'fa fa-square-o',
          title: 'Add Checkbox (empty)',
        },
        {
          name: 'checkbox-checked',
          action(e) {
            const cm = e.codemirror;
            cm.replaceSelection(`\n- [x] ${cm.getSelection()}`);
            cm.focus();
          },
          className: 'fa fa-check-square-o',
          title: 'Add Checkbox (checked)',
        }, '|',
        'unordered-list', 'ordered-list', '|',
        'link', 'image', 'table', 'horizontal-rule', '|',
        'clean-block', 'preview', 'fullscreen', 'side-by-side', '|',
        {
          name: 'revert-to-textarea',
          action(e) {
            e.toTextArea();
            hasSimpleMDE = false;
            const $form = $('.repository.wiki.new .ui.form');
            const $root = $form.find('.field.content');
            const loading = $root.data('loading');
            $root.append(`<div class="ui bottom tab markup" data-tab="preview">${loading}</div>`);
            initCommentPreviewTab($form);
          },
          className: 'fa fa-file',
          title: 'Revert to simple textarea',
        },
      ]
    });
    $(simplemde.codemirror.getInputField()).addClass('js-quick-submit');

    setTimeout(() => {
      const $bEdit = $('.repository.wiki.new .previewtabs a[data-tab="write"]');
      const $bPrev = $('.repository.wiki.new .previewtabs a[data-tab="preview"]');
      const $toolbar = $('.editor-toolbar');
      const $bPreview = $('.editor-toolbar button.preview');
      const $bSideBySide = $('.editor-toolbar a.fa-columns');
      $bEdit.on('click', (e) => {
        if (!hasSimpleMDE) {
          return false;
        }
        e.stopImmediatePropagation();
        if ($toolbar.hasClass('disabled-for-preview')) {
          $bPreview.trigger('click');
        }

        return false;
      });
      $bPrev.on('click', (e) => {
        if (!hasSimpleMDE) {
          return false;
        }
        e.stopImmediatePropagation();
        if (!$toolbar.hasClass('disabled-for-preview')) {
          $bPreview.trigger('click');
        }
        return false;
      });
      $bPreview.on('click', () => {
        setTimeout(() => {
          if ($toolbar.hasClass('disabled-for-preview')) {
            if ($bEdit.hasClass('active')) {
              $bEdit.removeClass('active');
            }
            if (!$bPrev.hasClass('active')) {
              $bPrev.addClass('active');
            }
          } else {
            if (!$bEdit.hasClass('active')) {
              $bEdit.addClass('active');
            }
            if ($bPrev.hasClass('active')) {
              $bPrev.removeClass('active');
            }
          }
        }, 0);

        return false;
      });
      $bSideBySide.on('click', () => {
        sideBySideChanges = 10;
      });
    }, 0);
  }
}

// Adding function to get the cursor position in a text field to jQuery object.
$.fn.getCursorPosition = function () {
  const el = $(this).get(0);
  let pos = 0;
  if ('selectionStart' in el) {
    pos = el.selectionStart;
  } else if ('selection' in document) {
    el.focus();
    const Sel = document.selection.createRange();
    const SelLength = document.selection.createRange().text.length;
    Sel.moveStart('character', -el.value.length);
    pos = Sel.text.length - SelLength;
  }
  return pos;
};

function setCommentSimpleMDE($editArea) {
  if ($editArea.length === 0) {
    return null;
  }

  const simplemde = new SimpleMDE({
    autoDownloadFontAwesome: false,
    element: $editArea[0],
    forceSync: true,
    renderingConfig: {
      singleLineBreaks: false
    },
    indentWithTabs: false,
    tabSize: 4,
    spellChecker: false,
    toolbar: ['bold', 'italic', 'strikethrough', '|',
      'heading-1', 'heading-2', 'heading-3', 'heading-bigger', 'heading-smaller', '|',
      'code', 'quote', '|', {
        name: 'checkbox-empty',
        action(e) {
          const cm = e.codemirror;
          cm.replaceSelection(`\n- [ ] ${cm.getSelection()}`);
          cm.focus();
        },
        className: 'fa fa-square-o',
        title: 'Add Checkbox (empty)',
      },
      {
        name: 'checkbox-checked',
        action(e) {
          const cm = e.codemirror;
          cm.replaceSelection(`\n- [x] ${cm.getSelection()}`);
          cm.focus();
        },
        className: 'fa fa-check-square-o',
        title: 'Add Checkbox (checked)',
      }, '|',
      'unordered-list', 'ordered-list', '|',
      'link', 'image', 'table', 'horizontal-rule', '|',
      'clean-block', '|',
      {
        name: 'revert-to-textarea',
        action(e) {
          e.toTextArea();
        },
        className: 'fa fa-file',
        title: 'Revert to simple textarea',
      },
    ]
  });
  $(simplemde.codemirror.getInputField()).addClass('js-quick-submit');
  simplemde.codemirror.setOption('extraKeys', {
    Enter: () => {
      const tributeContainer = document.querySelector('.tribute-container');
      if (!tributeContainer || tributeContainer.style.display === 'none') {
        return CodeMirror.Pass;
      }
    },
    Backspace: (cm) => {
      if (cm.getInputField().trigger) {
        cm.getInputField().trigger('input');
      }
      cm.execCommand('delCharBefore');
    }
  });
  attachTribute(simplemde.codemirror.getInputField(), {mentions: true, emoji: true});
  $editArea.data('simplemde', simplemde);
  $(simplemde.codemirror.getInputField()).data('simplemde', simplemde);
  return simplemde;
}

async function initEditor() {
  $('.js-quick-pull-choice-option').on('change', function () {
    if ($(this).val() === 'commit-to-new-branch') {
      $('.quick-pull-branch-name').show();
      $('.quick-pull-branch-name input').prop('required', true);
    } else {
      $('.quick-pull-branch-name').hide();
      $('.quick-pull-branch-name input').prop('required', false);
    }
    $('#commit-button').text($(this).attr('button_text'));
  });

  const $editFilename = $('#file-name');
  $editFilename.on('keyup', function (e) {
    const $section = $('.breadcrumb span.section');
    const $divider = $('.breadcrumb div.divider');
    let value;
    let parts;

    if (e.keyCode === 8 && $(this).getCursorPosition() === 0 && $section.length > 0) {
      value = $section.last().find('a').text();
      $(this).val(value + $(this).val());
      $(this)[0].setSelectionRange(value.length, value.length);
      $section.last().remove();
      $divider.last().remove();
    }
    if (e.keyCode === 191) {
      parts = $(this).val().split('/');
      for (let i = 0; i < parts.length; ++i) {
        value = parts[i];
        if (i < parts.length - 1) {
          if (value.length) {
            $(`<span class="section"><a href="#">${value}</a></span>`).insertBefore($(this));
            $('<div class="divider"> / </div>').insertBefore($(this));
          }
        } else {
          $(this).val(value);
        }
        $(this)[0].setSelectionRange(0, 0);
      }
    }
    parts = [];
    $('.breadcrumb span.section').each(function () {
      const element = $(this);
      if (element.find('a').length) {
        parts.push(element.find('a').text());
      } else {
        parts.push(element.text());
      }
    });
    if ($(this).val()) parts.push($(this).val());
    $('#tree_path').val(parts.join('/'));
  }).trigger('keyup');

  const $editArea = $('.repository.editor textarea#edit_area');
  if (!$editArea.length) return;

  const editor = await createCodeEditor($editArea[0], $editFilename[0], previewFileModes);

  // Using events from https://github.com/codedance/jquery.AreYouSure#advanced-usage
  // to enable or disable the commit button
  const $commitButton = $('#commit-button');
  const $editForm = $('.ui.edit.form');
  const dirtyFileClass = 'dirty-file';

  // Disabling the button at the start
  if ($('input[name="page_has_posted"]').val() !== 'true') {
    $commitButton.prop('disabled', true);
  }

  // Registering a custom listener for the file path and the file content
  $editForm.areYouSure({
    silent: true,
    dirtyClass: dirtyFileClass,
    fieldSelector: ':input:not(.commit-form-wrapper :input)',
    change() {
      const dirty = $(this).hasClass(dirtyFileClass);
      $commitButton.prop('disabled', !dirty);
    }
  });

  // Update the editor from query params, if available,
  // only after the dirtyFileClass initialization
  const params = new URLSearchParams(window.location.search);
  const value = params.get('value');
  if (value) {
    editor.setValue(value);
  }

  $commitButton.on('click', (event) => {
    // A modal which asks if an empty file should be committed
    if ($editArea.val().length === 0) {
      $('#edit-empty-content-modal').modal({
        onApprove() {
          $('.edit.form').trigger('submit');
        }
      }).modal('show');
      event.preventDefault();
    }
  });
}

function initReleaseEditor() {
  const $editor = $('.repository.new.release .content-editor');
  if ($editor.length === 0) {
    return false;
  }

  const $textarea = $editor.find('textarea');
  attachTribute($textarea.get(), {mentions: false, emoji: true});
  const $files = $editor.parent().find('.files');
  const $simplemde = setCommentSimpleMDE($textarea);
  initCommentPreviewTab($editor);
  const dropzone = $editor.parent().find('.dropzone')[0];
  initSimpleMDEImagePaste($simplemde, dropzone, $files);
}

function initOrganization() {
  if ($('.organization').length === 0) {
    return;
  }

  // Options
  if ($('.organization.settings.options').length > 0) {
    $('#org_name').on('keyup', function () {
      const $prompt = $('#org-name-change-prompt');
      const $prompt_redirect = $('#org-name-change-redirect-prompt');
      if ($(this).val().toString().toLowerCase() !== $(this).data('org-name').toString().toLowerCase()) {
        $prompt.show();
        $prompt_redirect.show();
      } else {
        $prompt.hide();
        $prompt_redirect.hide();
      }
    });
  }

  // Labels
  if ($('.organization.settings.labels').length > 0) {
    initLabelEdit();
  }
}

function initUserSettings() {
  // Options
  if ($('.user.settings.profile').length > 0) {
    $('#username').on('keyup', function () {
      const $prompt = $('#name-change-prompt');
      const $prompt_redirect = $('#name-change-redirect-prompt');
      if ($(this).val().toString().toLowerCase() !== $(this).data('name').toString().toLowerCase()) {
        $prompt.show();
        $prompt_redirect.show();
      } else {
        $prompt.hide();
        $prompt_redirect.hide();
      }
    });
  }
}

async function initGithook() {
  if ($('.edit.githook').length === 0) return;
  const filename = document.querySelector('.hook-filename').textContent;
  await createMonaco($('#content')[0], filename, {language: 'shell'});
}

function initWebhook() {
  if ($('.new.webhook').length === 0) {
    return;
  }

  $('.events.checkbox input').on('change', function () {
    if ($(this).is(':checked')) {
      $('.events.fields').show();
    }
  });
  $('.non-events.checkbox input').on('change', function () {
    if ($(this).is(':checked')) {
      $('.events.fields').hide();
    }
  });

  const updateContentType = function () {
    const visible = $('#http_method').val() === 'POST';
    $('#content_type').parent().parent()[visible ? 'show' : 'hide']();
  };
  updateContentType();
  $('#http_method').on('change', () => {
    updateContentType();
  });

  // Test delivery
  $('#test-delivery').on('click', function () {
    const $this = $(this);
    $this.addClass('loading disabled');
    $.post($this.data('link'), {
      _csrf: csrf
    }).done(
      setTimeout(() => {
        window.location.href = $this.data('redirect');
      }, 5000)
    );
  });
}

function initAdmin() {
  if ($('.admin').length === 0) {
    return;
  }

  // New user
  if ($('.admin.new.user').length > 0 || $('.admin.edit.user').length > 0) {
    $('#login_type').on('change', function () {
      if ($(this).val().substring(0, 1) === '0') {
        $('#user_name').removeAttr('disabled');
        $('#login_name').removeAttr('required');
        $('.non-local').hide();
        $('.local').show();
        $('#user_name').focus();

        if ($(this).data('password') === 'required') {
          $('#password').attr('required', 'required');
        }
      } else {
        if ($('.admin.edit.user').length > 0) {
          $('#user_name').attr('disabled', 'disabled');
        }
        $('#login_name').attr('required', 'required');
        $('.non-local').show();
        $('.local').hide();
        $('#login_name').focus();

        $('#password').removeAttr('required');
      }
    });
  }

  function onSecurityProtocolChange() {
    if ($('#security_protocol').val() > 0) {
      $('.has-tls').show();
    } else {
      $('.has-tls').hide();
    }
  }

  function onUsePagedSearchChange() {
    if ($('#use_paged_search').prop('checked')) {
      $('.search-page-size').show()
        .find('input').attr('required', 'required');
    } else {
      $('.search-page-size').hide()
        .find('input').removeAttr('required');
    }
  }

  function onOAuth2Change(applyDefaultValues) {
    $('.open_id_connect_auto_discovery_url, .oauth2_use_custom_url').hide();
    $('.open_id_connect_auto_discovery_url input[required]').removeAttr('required');

    const provider = $('#oauth2_provider').val();
    switch (provider) {
      case 'openidConnect':
        $('.open_id_connect_auto_discovery_url input').attr('required', 'required');
        $('.open_id_connect_auto_discovery_url').show();
        break;
      default:
        if ($(`#${provider}_customURLSettings`).data('required')) {
          $('#oauth2_use_custom_url').attr('checked', 'checked');
        }
        if ($(`#${provider}_customURLSettings`).data('available')) {
          $('.oauth2_use_custom_url').show();
        }
    }
    onOAuth2UseCustomURLChange(applyDefaultValues);
  }

  function onOAuth2UseCustomURLChange(applyDefaultValues) {
    const provider = $('#oauth2_provider').val();
    $('.oauth2_use_custom_url_field').hide();
    $('.oauth2_use_custom_url_field input[required]').removeAttr('required');

    if ($('#oauth2_use_custom_url').is(':checked')) {
      for (const custom of ['token_url', 'auth_url', 'profile_url', 'email_url', 'tenant']) {
        if (applyDefaultValues) {
          $(`#oauth2_${custom}`).val($(`#${provider}_${custom}`).val());
        }
        if ($(`#${provider}_${custom}`).data('available')) {
          $(`.oauth2_${custom} input`).attr('required', 'required');
          $(`.oauth2_${custom}`).show();
        }
      }
    }
  }

  function onVerifyGroupMembershipChange() {
    if ($('#groups_enabled').is(':checked')) {
      $('#groups_enabled_change').show();
    } else {
      $('#groups_enabled_change').hide();
    }
  }

  // New authentication
  if ($('.admin.new.authentication').length > 0) {
    $('#auth_type').on('change', function () {
      $('.ldap, .dldap, .smtp, .pam, .oauth2, .has-tls, .search-page-size, .sspi').hide();

      $('.ldap input[required], .binddnrequired input[required], .dldap input[required], .smtp input[required], .pam input[required], .oauth2 input[required], .has-tls input[required], .sspi input[required]').removeAttr('required');
      $('.binddnrequired').removeClass('required');

      const authType = $(this).val();
      switch (authType) {
        case '2': // LDAP
          $('.ldap').show();
          $('.binddnrequired input, .ldap div.required:not(.dldap) input').attr('required', 'required');
          $('.binddnrequired').addClass('required');
          break;
        case '3': // SMTP
          $('.smtp').show();
          $('.has-tls').show();
          $('.smtp div.required input, .has-tls').attr('required', 'required');
          break;
        case '4': // PAM
          $('.pam').show();
          $('.pam input').attr('required', 'required');
          break;
        case '5': // LDAP
          $('.dldap').show();
          $('.dldap div.required:not(.ldap) input').attr('required', 'required');
          break;
        case '6': // OAuth2
          $('.oauth2').show();
          $('.oauth2 div.required:not(.oauth2_use_custom_url,.oauth2_use_custom_url_field,.open_id_connect_auto_discovery_url) input').attr('required', 'required');
          onOAuth2Change(true);
          break;
        case '7': // SSPI
          $('.sspi').show();
          $('.sspi div.required input').attr('required', 'required');
          break;
      }
      if (authType === '2' || authType === '5') {
        onSecurityProtocolChange();
        onVerifyGroupMembershipChange();
      }
      if (authType === '2') {
        onUsePagedSearchChange();
      }
    });
    $('#auth_type').trigger('change');
    $('#security_protocol').on('change', onSecurityProtocolChange);
    $('#use_paged_search').on('change', onUsePagedSearchChange);
    $('#oauth2_provider').on('change', () => onOAuth2Change(true));
    $('#oauth2_use_custom_url').on('change', () => onOAuth2UseCustomURLChange(true));
    $('#groups_enabled').on('change', onVerifyGroupMembershipChange);
  }
  // Edit authentication
  if ($('.admin.edit.authentication').length > 0) {
    const authType = $('#auth_type').val();
    if (authType === '2' || authType === '5') {
      $('#security_protocol').on('change', onSecurityProtocolChange);
      $('#groups_enabled').on('change', onVerifyGroupMembershipChange);
      onVerifyGroupMembershipChange();
      if (authType === '2') {
        $('#use_paged_search').on('change', onUsePagedSearchChange);
      }
    } else if (authType === '6') {
      $('#oauth2_provider').on('change', () => onOAuth2Change(true));
      $('#oauth2_use_custom_url').on('change', () => onOAuth2UseCustomURLChange(false));
      onOAuth2Change(false);
    }
  }

  // Notice
  if ($('.admin.notice')) {
    const $detailModal = $('#detail-modal');

    // Attach view detail modals
    $('.view-detail').on('click', function () {
      $detailModal.find('.content pre').text($(this).parents('tr').find('.notice-description').text());
      $detailModal.find('.sub.header').text($(this).parents('tr').find('.notice-created-time').text());
      $detailModal.modal('show');
      return false;
    });

    // Select actions
    const $checkboxes = $('.select.table .ui.checkbox');
    $('.select.action').on('click', function () {
      switch ($(this).data('action')) {
        case 'select-all':
          $checkboxes.checkbox('check');
          break;
        case 'deselect-all':
          $checkboxes.checkbox('uncheck');
          break;
        case 'inverse':
          $checkboxes.checkbox('toggle');
          break;
      }
    });
    $('#delete-selection').on('click', function () {
      const $this = $(this);
      $this.addClass('loading disabled');
      const ids = [];
      $checkboxes.each(function () {
        if ($(this).checkbox('is checked')) {
          ids.push($(this).data('id'));
        }
      });
      $.post($this.data('link'), {
        _csrf: csrf,
        ids
      }).done(() => {
        window.location.href = $this.data('redirect');
      });
    });
  }
}

function buttonsClickOnEnter() {
  $('.ui.button').on('keypress', function (e) {
    if (e.keyCode === 13 || e.keyCode === 32) { // enter key or space bar
      $(this).trigger('click');
    }
  });
}

function searchUsers() {
  const $searchUserBox = $('#search-user-box');
  $searchUserBox.search({
    minCharacters: 2,
    apiSettings: {
      url: `${AppSubUrl}/api/v1/users/search?q={query}`,
      onResponse(response) {
        const items = [];
        $.each(response.data, (_i, item) => {
          let title = item.login;
          if (item.full_name && item.full_name.length > 0) {
            title += ` (${htmlEscape(item.full_name)})`;
          }
          items.push({
            title,
            image: item.avatar_url
          });
        });

        return {results: items};
      }
    },
    searchFields: ['login', 'full_name'],
    showNoResults: false
  });
}

function searchTeams() {
  const $searchTeamBox = $('#search-team-box');
  $searchTeamBox.search({
    minCharacters: 2,
    apiSettings: {
      url: `${AppSubUrl}/api/v1/orgs/${$searchTeamBox.data('org')}/teams/search?q={query}`,
      headers: {'X-Csrf-Token': csrf},
      onResponse(response) {
        const items = [];
        $.each(response.data, (_i, item) => {
          const title = `${item.name} (${item.permission} access)`;
          items.push({
            title,
          });
        });

        return {results: items};
      }
    },
    searchFields: ['name', 'description'],
    showNoResults: false
  });
}

function searchRepositories() {
  const $searchRepoBox = $('#search-repo-box');
  $searchRepoBox.search({
    minCharacters: 2,
    apiSettings: {
      url: `${AppSubUrl}/api/v1/repos/search?q={query}&uid=${$searchRepoBox.data('uid')}`,
      onResponse(response) {
        const items = [];
        $.each(response.data, (_i, item) => {
          items.push({
            title: item.full_name.split('/')[1],
            description: item.full_name
          });
        });

        return {results: items};
      }
    },
    searchFields: ['full_name'],
    showNoResults: false
  });
}

function initCodeView() {
  if ($('.code-view .lines-num').length > 0) {
    $(document).on('click', '.lines-num span', function (e) {
      const $select = $(this);
      let $list;
      if ($('div.blame').length) {
        $list = $('.code-view td.lines-code.blame-code');
      } else {
        $list = $('.code-view td.lines-code');
      }
      selectRange($list, $list.filter(`[rel=${$select.attr('id')}]`), (e.shiftKey ? $list.filter('.active').eq(0) : null));
      deSelect();

      // show code view menu marker (don't show in blame page)
      if ($('div.blame').length === 0) {
        showLineButton();
      }
    });

    $(window).on('hashchange', () => {
      let m = window.location.hash.match(/^#(L\d+)-(L\d+)$/);
      let $list;
      if ($('div.blame').length) {
        $list = $('.code-view td.lines-code.blame-code');
      } else {
        $list = $('.code-view td.lines-code');
      }
      let $first;
      if (m) {
        $first = $list.filter(`[rel=${m[1]}]`);
        selectRange($list, $first, $list.filter(`[rel=${m[2]}]`));

        // show code view menu marker (don't show in blame page)
        if ($('div.blame').length === 0) {
          showLineButton();
        }

        $('html, body').scrollTop($first.offset().top - 200);
        return;
      }
      m = window.location.hash.match(/^#(L|n)(\d+)$/);
      if (m) {
        $first = $list.filter(`[rel=L${m[2]}]`);
        selectRange($list, $first);

        // show code view menu marker (don't show in blame page)
        if ($('div.blame').length === 0) {
          showLineButton();
        }

        $('html, body').scrollTop($first.offset().top - 200);
      }
    }).trigger('hashchange');
  }
  $(document).on('click', '.fold-file', ({currentTarget}) => {
    const box = currentTarget.closest('.file-content');
    const folded = box.dataset.folded !== 'true';
    currentTarget.innerHTML = svg(`octicon-chevron-${folded ? 'right' : 'down'}`, 18);
    box.dataset.folded = String(folded);
  });
  $(document).on('click', '.blob-excerpt', async ({currentTarget}) => {
    const {url, query, anchor} = currentTarget.dataset;
    if (!url) return;
    const blob = await $.get(`${url}?${query}&anchor=${anchor}`);
    currentTarget.closest('tr').outerHTML = blob;
  });
}

function initU2FAuth() {
  if ($('#wait-for-key').length === 0) {
    return;
  }
  u2fApi.ensureSupport()
    .then(() => {
      $.getJSON(`${AppSubUrl}/user/u2f/challenge`).done((req) => {
        u2fApi.sign(req.appId, req.challenge, req.registeredKeys, 30)
          .then(u2fSigned)
          .catch((err) => {
            if (err === undefined) {
              u2fError(1);
              return;
            }
            u2fError(err.metaData.code);
          });
      });
    }).catch(() => {
      // Fallback in case browser do not support U2F
      window.location.href = `${AppSubUrl}/user/two_factor`;
    });
}
function u2fSigned(resp) {
  $.ajax({
    url: `${AppSubUrl}/user/u2f/sign`,
    type: 'POST',
    headers: {'X-Csrf-Token': csrf},
    data: JSON.stringify(resp),
    contentType: 'application/json; charset=utf-8',
  }).done((res) => {
    window.location.replace(res);
  }).fail(() => {
    u2fError(1);
  });
}

function u2fRegistered(resp) {
  if (checkError(resp)) {
    return;
  }
  $.ajax({
    url: `${AppSubUrl}/user/settings/security/u2f/register`,
    type: 'POST',
    headers: {'X-Csrf-Token': csrf},
    data: JSON.stringify(resp),
    contentType: 'application/json; charset=utf-8',
    success() {
      reload();
    },
    fail() {
      u2fError(1);
    }
  });
}

function checkError(resp) {
  if (!('errorCode' in resp)) {
    return false;
  }
  if (resp.errorCode === 0) {
    return false;
  }
  u2fError(resp.errorCode);
  return true;
}

function u2fError(errorType) {
  const u2fErrors = {
    browser: $('#unsupported-browser'),
    1: $('#u2f-error-1'),
    2: $('#u2f-error-2'),
    3: $('#u2f-error-3'),
    4: $('#u2f-error-4'),
    5: $('.u2f_error_5')
  };
  u2fErrors[errorType].removeClass('hide');

  Object.keys(u2fErrors).forEach((type) => {
    if (type !== `${errorType}`) {
      u2fErrors[type].addClass('hide');
    }
  });
  $('#u2f-error').modal('show');
}

function initU2FRegister() {
  $('#register-device').modal({allowMultiple: false});
  $('#u2f-error').modal({allowMultiple: false});
  $('#register-security-key').on('click', (e) => {
    e.preventDefault();
    u2fApi.ensureSupport()
      .then(u2fRegisterRequest)
      .catch(() => {
        u2fError('browser');
      });
  });
}

function u2fRegisterRequest() {
  $.post(`${AppSubUrl}/user/settings/security/u2f/request_register`, {
    _csrf: csrf,
    name: $('#nickname').val()
  }).done((req) => {
    $('#nickname').closest('div.field').removeClass('error');
    $('#register-device').modal('show');
    if (req.registeredKeys === null) {
      req.registeredKeys = [];
    }
    u2fApi.register(req.appId, req.registerRequests, req.registeredKeys, 30)
      .then(u2fRegistered)
      .catch((reason) => {
        if (reason === undefined) {
          u2fError(1);
          return;
        }
        u2fError(reason.metaData.code);
      });
  }).fail((xhr) => {
    if (xhr.status === 409) {
      $('#nickname').closest('div.field').addClass('error');
    }
  });
}

function initWipTitle() {
  $('.title_wip_desc > a').on('click', (e) => {
    e.preventDefault();

    const $issueTitle = $('#issue_title');
    $issueTitle.focus();
    const value = $issueTitle.val().trim().toUpperCase();

    const wipPrefixes = $('.title_wip_desc').data('wip-prefixes');
    for (const prefix of wipPrefixes) {
      if (value.startsWith(prefix.toUpperCase())) {
        return;
      }
    }

    $issueTitle.val(`${wipPrefixes[0]} ${$issueTitle.val()}`);
  });
}

function initTemplateSearch() {
  const $repoTemplate = $('#repo_template');
  const checkTemplate = function () {
    const $templateUnits = $('#template_units');
    const $nonTemplate = $('#non_template');
    if ($repoTemplate.val() !== '' && $repoTemplate.val() !== '0') {
      $templateUnits.show();
      $nonTemplate.hide();
    } else {
      $templateUnits.hide();
      $nonTemplate.show();
    }
  };
  $repoTemplate.on('change', checkTemplate);
  checkTemplate();

  const changeOwner = function () {
    $('#repo_template_search')
      .dropdown({
        apiSettings: {
          url: `${AppSubUrl}/api/v1/repos/search?q={query}&template=true&priority_owner_id=${$('#uid').val()}`,
          onResponse(response) {
            const filteredResponse = {success: true, results: []};
            filteredResponse.results.push({
              name: '',
              value: ''
            });
            // Parse the response from the api to work with our dropdown
            $.each(response.data, (_r, repo) => {
              filteredResponse.results.push({
                name: htmlEscape(repo.full_name),
                value: repo.id
              });
            });
            return filteredResponse;
          },
          cache: false,
        },

        fullTextSearch: true
      });
  };
  $('#uid').on('change', changeOwner);
  changeOwner();
}

function initIssueReferenceRepositorySearch() {
  $('.issue_reference_repository_search')
    .dropdown({
      apiSettings: {
        url: `${AppSubUrl}/api/v1/repos/search?q={query}&limit=20`,
        onResponse(response) {
          const filteredResponse = {success: true, results: []};
          $.each(response.data, (_r, repo) => {
            filteredResponse.results.push({
              name: htmlEscape(repo.full_name),
              value: repo.full_name
            });
          });
          return filteredResponse;
        },
        cache: false,
      },
      onChange(_value, _text, $choice) {
        const $form = $choice.closest('form');
        $form.attr('action', `${AppSubUrl}/${_text}/issues/new`);
      },
      fullTextSearch: true
    });
}

function initFileViewToggle() {
  $('.file-view-toggle').on('click', function() {
    const $this = $(this);
    $this.parent().children().removeClass('active');
    $this.addClass('active');

    const $target = $($this.data('toggle-selector'));
    $target.parent().children().addClass('hide');
    $target.removeClass('hide');
  });
}

function initLinkAccountView() {
  const $lnkUserPage = $('.page-content.user.link-account');
  if ($lnkUserPage.length === 0) {
    return false;
  }

  const $signinTab = $lnkUserPage.find('.item[data-tab="auth-link-signin-tab"]');
  const $signUpTab = $lnkUserPage.find('.item[data-tab="auth-link-signup-tab"]');
  const $signInView = $lnkUserPage.find('.tab[data-tab="auth-link-signin-tab"]');
  const $signUpView = $lnkUserPage.find('.tab[data-tab="auth-link-signup-tab"]');

  $signUpTab.on('click', () => {
    $signinTab.removeClass('active');
    $signInView.removeClass('active');
    $signUpTab.addClass('active');
    $signUpView.addClass('active');
    return false;
  });

  $signinTab.on('click', () => {
    $signUpTab.removeClass('active');
    $signUpView.removeClass('active');
    $signinTab.addClass('active');
    $signInView.addClass('active');
  });
}

$(document).ready(async () => {
  // Show exact time
  $('.time-since').each(function () {
    $(this)
      .addClass('poping up')
      .attr('data-content', $(this).attr('title'))
      .attr('data-variation', 'inverted tiny')
      .attr('title', '');
  });

  // Undo Safari emoji glitch fix at high enough zoom levels
  if (navigator.userAgent.match('Safari')) {
    $(window).resize(() => {
      const px = mqBinarySearch('width', 0, 4096, 1, 'px');
      const em = mqBinarySearch('width', 0, 1024, 0.01, 'em');
      if (em * 16 * 1.25 - px <= -1) {
        $('body').addClass('safari-above125');
      } else {
        $('body').removeClass('safari-above125');
      }
    });
  }

  // Semantic UI modules.
  $('.dropdown:not(.custom)').dropdown({
    fullTextSearch: 'exact'
  });
  $('.jump.dropdown').dropdown({
    action: 'hide',
    onShow() {
      $('.poping.up').popup('hide');
    },
    fullTextSearch: 'exact'
  });
  $('.slide.up.dropdown').dropdown({
    transition: 'slide up',
    fullTextSearch: 'exact'
  });
  $('.upward.dropdown').dropdown({
    direction: 'upward',
    fullTextSearch: 'exact'
  });
  $('.ui.checkbox').checkbox();
  $('.ui.progress').progress({
    showActivity: false
  });
  $('.poping.up').popup();
  $('.top.menu .poping.up').popup({
    onShow() {
      if ($('.top.menu .menu.transition').hasClass('visible')) {
        return false;
      }
    }
  });
  $('.tabular.menu .item').tab();
  $('.tabable.menu .item').tab();

  $('.toggle.button').on('click', function () {
    $($(this).data('target')).slideToggle(100);
  });

  // make table <tr> element clickable like a link
  $('tr[data-href]').on('click', function () {
    window.location = $(this).data('href');
  });

  // make table <td> element clickable like a link
  $('td[data-href]').click(function () {
    window.location = $(this).data('href');
  });

  // link-account tab handle
  initLinkAccountView();

  // Dropzone
  for (const el of document.querySelectorAll('.dropzone')) {
    const filenameDict = {};
    const $dropzone = $(el);
    await createDropzone(el, {
      url: $dropzone.data('upload-url'),
      headers: {'X-Csrf-Token': csrf},
      maxFiles: $dropzone.data('max-file'),
      maxFilesize: $dropzone.data('max-size'),
      acceptedFiles: (['*/*', ''].includes($dropzone.data('accepts'))) ? null : $dropzone.data('accepts'),
      addRemoveLinks: true,
      dictDefaultMessage: $dropzone.data('default-message'),
      dictInvalidFileType: $dropzone.data('invalid-input-type'),
      dictFileTooBig: $dropzone.data('file-too-big'),
      dictRemoveFile: $dropzone.data('remove-file'),
      timeout: 0,
      thumbnailMethod: 'contain',
      thumbnailWidth: 480,
      thumbnailHeight: 480,
      init() {
        this.on('success', (file, data) => {
          filenameDict[file.name] = data.uuid;
          const input = $(`<input id="${data.uuid}" name="files" type="hidden">`).val(data.uuid);
          $dropzone.find('.files').append(input);
        });
        this.on('removedfile', (file) => {
          if (file.name in filenameDict) {
            $(`#${filenameDict[file.name]}`).remove();
          }
          if ($dropzone.data('remove-url')) {
            $.post($dropzone.data('remove-url'), {
              file: filenameDict[file.name],
              _csrf: csrf
            });
          }
        });
      },
    });
  }

  // Helpers.
  $('.delete-button').on('click', showDeletePopup);
  $('.add-all-button').on('click', showAddAllPopup);
  $('.link-action').on('click', linkAction);
  $('.language-menu a[lang]').on('click', linkLanguageAction);
  $('.link-email-action').on('click', linkEmailAction);

  $('.delete-branch-button').on('click', showDeletePopup);

  $('.undo-button').on('click', function () {
    const $this = $(this);
    $.post($this.data('url'), {
      _csrf: csrf,
      id: $this.data('id')
    }).done((data) => {
      window.location.href = data.redirect;
    });
  });
  $('.show-panel.button').on('click', function () {
    $($(this).data('panel')).show();
  });
  $('.show-create-branch-modal.button').on('click', function () {
    $('#create-branch-form')[0].action = $('#create-branch-form').data('base-action') + $(this).data('branch-from');
    $('#modal-create-branch-from-span').text($(this).data('branch-from'));
    $($(this).data('modal')).modal('show');
  });
  $('.show-modal.button').on('click', function () {
    $($(this).data('modal')).modal('show');
  });
  $('.delete-post.button').on('click', function () {
    const $this = $(this);
    $.post($this.data('request-url'), {
      _csrf: csrf
    }).done(() => {
      window.location.href = $this.data('done-url');
    });
  });

  $('.issue-checkbox').on('click', () => {
    const numChecked = $('.issue-checkbox').children('input:checked').length;
    if (numChecked > 0) {
      $('#issue-filters').addClass('hide');
      $('#issue-actions').removeClass('hide');
    } else {
      $('#issue-filters').removeClass('hide');
      $('#issue-actions').addClass('hide');
    }
  });

  $('.issue-action').on('click', function () {
    let {action, elementId, url} = this.dataset;
    const issueIDs = $('.issue-checkbox').children('input:checked').map((_, el) => {
      return el.dataset.issueId;
    }).get().join(',');
    if (elementId === '0' && url.substr(-9) === '/assignee') {
      elementId = '';
      action = 'clear';
    }
    updateIssuesMeta(url, action, issueIDs, elementId, '').then(() => {
      // NOTICE: This reset of checkbox state targets Firefox caching behaviour, as the checkboxes stay checked after reload
      if (action === 'close' || action === 'open') {
        // uncheck all checkboxes
        $('.issue-checkbox input[type="checkbox"]').each((_, e) => { e.checked = false });
      }
      reload();
    });
  });

  // NOTICE: This event trigger targets Firefox caching behaviour, as the checkboxes stay checked after reload
  // trigger ckecked event, if checkboxes are checked on load
  $('.issue-checkbox input[type="checkbox"]:checked').first().each((_, e) => {
    e.checked = false;
    $(e).trigger('click');
  });

  $(document).on('click', '.resolve-conversation', async function (e) {
    e.preventDefault();
    const comment_id = $(this).data('comment-id');
    const origin = $(this).data('origin');
    const action = $(this).data('action');
    const url = $(this).data('update-url');

    const data = await $.post(url, {_csrf: csrf, origin, action, comment_id});

    if ($(this).closest('.conversation-holder').length) {
      const conversation = $(data);
      $(this).closest('.conversation-holder').replaceWith(conversation);
      conversation.find('.dropdown').dropdown();
      initReactionSelector(conversation);
      initClipboard();
    } else {
      reload();
    }
  });

  buttonsClickOnEnter();
  searchUsers();
  searchTeams();
  searchRepositories();

  initMarkupAnchors();
  initCommentContent();
  initCommentForm();
  initInstall();
  initArchiveLinks();
  initRepository();
  initMigration();
  initWikiForm();
  initEditForm();
  initEditor();
  initOrganization();
  initWebhook();
  initAdmin();
  initCodeView();
  initVueApp();
  initTeamSettings();
  initCtrlEnterSubmit();
  initNavbarContentToggle();
  initTopicbar();
  initU2FAuth();
  initU2FRegister();
  initIssueList();
  initIssueTimetracking();
  initIssueDue();
  initWipTitle();
  initPullRequestReview();
  initRepoStatusChecker();
  initTemplateSearch();
  initIssueReferenceRepositorySearch();
  initContextPopups();
  initTableSort();
  initNotificationsTable();
  initPullRequestMergeInstruction();
  initFileViewToggle();
  initReleaseEditor();
  initRelease();

  const routes = {
    'div.user.settings': initUserSettings,
    'div.repository.settings.collaboration': initRepositoryCollaboration
  };

  for (const [selector, fn] of Object.entries(routes)) {
    if ($(selector).length > 0) {
      fn();
      break;
    }
  }

  // parallel init of async loaded features
  await Promise.all([
    attachTribute(document.querySelectorAll('#content, .emoji-input')),
    initGitGraph(),
    initClipboard(),
    initHeatmap(),
    initProject(),
    initServiceWorker(),
    initNotificationCount(),
    initStopwatch(),
    initMarkupContent(),
    initGithook(),
    initImageDiff(),
  ]);
});

function changeHash(hash) {
  if (window.history.pushState) {
    window.history.pushState(null, null, hash);
  } else {
    window.location.hash = hash;
  }
}

function deSelect() {
  if (window.getSelection) {
    window.getSelection().removeAllRanges();
  } else {
    document.selection.empty();
  }
}

function selectRange($list, $select, $from) {
  $list.removeClass('active');
  if ($from) {
    let a = parseInt($select.attr('rel').substr(1));
    let b = parseInt($from.attr('rel').substr(1));
    let c;
    if (a !== b) {
      if (a > b) {
        c = a;
        a = b;
        b = c;
      }
      const classes = [];
      for (let i = a; i <= b; i++) {
        classes.push(`[rel=L${i}]`);
      }
      $list.filter(classes.join(',')).addClass('active');
      changeHash(`#L${a}-L${b}`);

      // add hashchange to permalink
      const $issue = $('a.ref-in-new-issue');

      if ($issue.length === 0) {
        return;
      }

      const matched = $issue.attr('href').match(/%23L\d+$|%23L\d+-L\d+$/);
      if (matched) {
        $issue.attr('href', $issue.attr('href').replace($issue.attr('href').substr(matched.index), `%23L${a}-L${b}`));
      } else {
        $issue.attr('href', `${$issue.attr('href')}%23L${a}-L${b}`);
      }
      return;
    }
  }
  $select.addClass('active');
  changeHash(`#${$select.attr('rel')}`);

  // add hashchange to permalink
  const $issue = $('a.ref-in-new-issue');

  if ($issue.length === 0) {
    return;
  }

  const matched = $issue.attr('href').match(/%23L\d+$|%23L\d+-L\d+$/);
  if (matched) {
    $issue.attr('href', $issue.attr('href').replace($issue.attr('href').substr(matched.index), `%23${$select.attr('rel')}`));
  } else {
    $issue.attr('href', `${$issue.attr('href')}%23${$select.attr('rel')}`);
  }
}

$(() => {
  // Warn users that try to leave a page after entering data into a form.
  // Except on sign-in pages, and for forms marked as 'ignore-dirty'.
  if ($('.user.signin').length === 0) {
    $('form:not(.ignore-dirty)').areYouSure();
  }

  // Parse SSH Key
  $('#ssh-key-content').on('change paste keyup', function () {
    const arrays = $(this).val().split(' ');
    const $title = $('#ssh-key-title');
    if ($title.val() === '' && arrays.length === 3 && arrays[2] !== '') {
      $title.val(arrays[2]);
    }
  });
});

function showDeletePopup() {
  const $this = $(this);
  let filter = '';
  if ($this.attr('id')) {
    filter += `#${$this.attr('id')}`;
  }

  const dialog = $(`.delete.modal${filter}`);
  dialog.find('.name').text($this.data('name'));

  dialog.modal({
    closable: false,
    onApprove() {
      if ($this.data('type') === 'form') {
        $($this.data('form')).trigger('submit');
        return;
      }

      $.post($this.data('url'), {
        _csrf: csrf,
        id: $this.data('id')
      }).done((data) => {
        window.location.href = data.redirect;
      });
    }
  }).modal('show');
  return false;
}

function showAddAllPopup() {
  const $this = $(this);
  let filter = '';
  if ($this.attr('id')) {
    filter += `#${$this.attr('id')}`;
  }

  const dialog = $(`.addall.modal${filter}`);
  dialog.find('.name').text($this.data('name'));

  dialog.modal({
    closable: false,
    onApprove() {
      if ($this.data('type') === 'form') {
        $($this.data('form')).trigger('submit');
        return;
      }

      $.post($this.data('url'), {
        _csrf: csrf,
        id: $this.data('id')
      }).done((data) => {
        window.location.href = data.redirect;
      });
    }
  }).modal('show');
  return false;
}

function linkAction(e) {
  e.preventDefault();
  const $this = $(this);
  const redirect = $this.data('redirect');
  $.post($this.data('url'), {
    _csrf: csrf
  }).done((data) => {
    if (data.redirect) {
      window.location.href = data.redirect;
    } else if (redirect) {
      window.location.href = redirect;
    } else {
      window.location.reload();
    }
  });
}

function linkLanguageAction() {
  const $this = $(this);
  $.post($this.data('url')).always(() => {
    window.location.reload();
  });
}

function linkEmailAction(e) {
  const $this = $(this);
  $('#form-uid').val($this.data('uid'));
  $('#form-email').val($this.data('email'));
  $('#form-primary').val($this.data('primary'));
  $('#form-activate').val($this.data('activate'));
  $('#form-uid').val($this.data('uid'));
  $('#change-email-modal').modal('show');
  e.preventDefault();
}

function initVueComponents() {
  // register svg icon vue components, e.g. <octicon-repo size="16"/>
  for (const [name, htmlString] of Object.entries(svgs)) {
    const template = htmlString
      .replace(/height="[0-9]+"/, 'v-bind:height="size"')
      .replace(/width="[0-9]+"/, 'v-bind:width="size"');

    Vue.component(name, {
      props: {
        size: {
          type: String,
          default: '16',
        },
      },
      template,
    });
  }

  const vueDelimeters = ['${', '}'];

  Vue.component('repo-search', {
    delimiters: vueDelimeters,

    props: {
      searchLimit: {
        type: Number,
        default: 10
      },
      suburl: {
        type: String,
        required: true
      },
      uid: {
        type: Number,
        required: true
      },
      teamId: {
        type: Number,
        required: false,
        default: 0
      },
      organizations: {
        type: Array,
        default: () => [],
      },
      isOrganization: {
        type: Boolean,
        default: true
      },
      canCreateOrganization: {
        type: Boolean,
        default: false
      },
      organizationsTotalCount: {
        type: Number,
        default: 0
      },
      moreReposLink: {
        type: String,
        default: ''
      }
    },

    data() {
      const params = new URLSearchParams(window.location.search);

      let tab = params.get('repo-search-tab');
      if (!tab) {
        tab = 'repos';
      }

      let reposFilter = params.get('repo-search-filter');
      if (!reposFilter) {
        reposFilter = 'all';
      }

      let privateFilter = params.get('repo-search-private');
      if (!privateFilter) {
        privateFilter = 'both';
      }

      let archivedFilter = params.get('repo-search-archived');
      if (!archivedFilter) {
        archivedFilter = 'unarchived';
      }

      let searchQuery = params.get('repo-search-query');
      if (!searchQuery) {
        searchQuery = '';
      }

      let page = 1;
      try {
        page = parseInt(params.get('repo-search-page'));
      } catch {
        // noop
      }
      if (!page) {
        page = 1;
      }

      return {
        tab,
        repos: [],
        reposTotalCount: 0,
        reposFilter,
        archivedFilter,
        privateFilter,
        page,
        finalPage: 1,
        searchQuery,
        isLoading: false,
        staticPrefix: AssetUrlPrefix,
        counts: {},
        repoTypes: {
          all: {
            searchMode: '',
          },
          forks: {
            searchMode: 'fork',
          },
          mirrors: {
            searchMode: 'mirror',
          },
          sources: {
            searchMode: 'source',
          },
          collaborative: {
            searchMode: 'collaborative',
          },
        }
      };
    },

    computed: {
      showMoreReposLink() {
        return this.repos.length > 0 && this.repos.length < this.counts[`${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`];
      },
      searchURL() {
        return `${this.suburl}/api/v1/repos/search?sort=updated&order=desc&uid=${this.uid}&team_id=${this.teamId}&q=${this.searchQuery
        }&page=${this.page}&limit=${this.searchLimit}&mode=${this.repoTypes[this.reposFilter].searchMode
        }${this.reposFilter !== 'all' ? '&exclusive=1' : ''
        }${this.archivedFilter === 'archived' ? '&archived=true' : ''}${this.archivedFilter === 'unarchived' ? '&archived=false' : ''
        }${this.privateFilter === 'private' ? '&is_private=true' : ''}${this.privateFilter === 'public' ? '&is_private=false' : ''
        }`;
      },
      repoTypeCount() {
        return this.counts[`${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`];
      }
    },

    mounted() {
      this.changeReposFilter(this.reposFilter);
      $(this.$el).find('.poping.up').popup();
      $(this.$el).find('.dropdown').dropdown();
      this.setCheckboxes();
      Vue.nextTick(() => {
        this.$refs.search.focus();
      });
    },

    methods: {
      changeTab(t) {
        this.tab = t;
        this.updateHistory();
      },

      setCheckboxes() {
        switch (this.archivedFilter) {
          case 'unarchived':
            $('#archivedFilterCheckbox').checkbox('set unchecked');
            break;
          case 'archived':
            $('#archivedFilterCheckbox').checkbox('set checked');
            break;
          case 'both':
            $('#archivedFilterCheckbox').checkbox('set indeterminate');
            break;
          default:
            this.archivedFilter = 'unarchived';
            $('#archivedFilterCheckbox').checkbox('set unchecked');
            break;
        }
        switch (this.privateFilter) {
          case 'public':
            $('#privateFilterCheckbox').checkbox('set unchecked');
            break;
          case 'private':
            $('#privateFilterCheckbox').checkbox('set checked');
            break;
          case 'both':
            $('#privateFilterCheckbox').checkbox('set indeterminate');
            break;
          default:
            this.privateFilter = 'both';
            $('#privateFilterCheckbox').checkbox('set indeterminate');
            break;
        }
      },

      changeReposFilter(filter) {
        this.reposFilter = filter;
        this.repos = [];
        this.page = 1;
        Vue.set(this.counts, `${filter}:${this.archivedFilter}:${this.privateFilter}`, 0);
        this.searchRepos();
      },

      updateHistory() {
        const params = new URLSearchParams(window.location.search);

        if (this.tab === 'repos') {
          params.delete('repo-search-tab');
        } else {
          params.set('repo-search-tab', this.tab);
        }

        if (this.reposFilter === 'all') {
          params.delete('repo-search-filter');
        } else {
          params.set('repo-search-filter', this.reposFilter);
        }

        if (this.privateFilter === 'both') {
          params.delete('repo-search-private');
        } else {
          params.set('repo-search-private', this.privateFilter);
        }

        if (this.archivedFilter === 'unarchived') {
          params.delete('repo-search-archived');
        } else {
          params.set('repo-search-archived', this.archivedFilter);
        }

        if (this.searchQuery === '') {
          params.delete('repo-search-query');
        } else {
          params.set('repo-search-query', this.searchQuery);
        }

        if (this.page === 1) {
          params.delete('repo-search-page');
        } else {
          params.set('repo-search-page', `${this.page}`);
        }

        const queryString = params.toString();
        if (queryString) {
          window.history.replaceState({}, '', `?${queryString}`);
        } else {
          window.history.replaceState({}, '', window.location.pathname);
        }
      },

      toggleArchivedFilter() {
        switch (this.archivedFilter) {
          case 'both':
            this.archivedFilter = 'unarchived';
            break;
          case 'unarchived':
            this.archivedFilter = 'archived';
            break;
          case 'archived':
            this.archivedFilter = 'both';
            break;
          default:
            this.archivedFilter = 'unarchived';
            break;
        }
        this.page = 1;
        this.repos = [];
        this.setCheckboxes();
        Vue.set(this.counts, `${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`, 0);
        this.searchRepos();
      },

      togglePrivateFilter() {
        switch (this.privateFilter) {
          case 'both':
            this.privateFilter = 'public';
            break;
          case 'public':
            this.privateFilter = 'private';
            break;
          case 'private':
            this.privateFilter = 'both';
            break;
          default:
            this.privateFilter = 'both';
            break;
        }
        this.page = 1;
        this.repos = [];
        this.setCheckboxes();
        Vue.set(this.counts, `${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`, 0);
        this.searchRepos();
      },


      changePage(page) {
        this.page = page;
        if (this.page > this.finalPage) {
          this.page = this.finalPage;
        }
        if (this.page < 1) {
          this.page = 1;
        }
        this.repos = [];
        Vue.set(this.counts, `${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`, 0);
        this.searchRepos();
      },

      searchRepos() {
        this.isLoading = true;

        if (!this.reposTotalCount) {
          const totalCountSearchURL = `${this.suburl}/api/v1/repos/search?sort=updated&order=desc&uid=${this.uid}&team_id=${this.teamId}&q=&page=1&mode=`;
          $.getJSON(totalCountSearchURL, (_result, _textStatus, request) => {
            this.reposTotalCount = request.getResponseHeader('X-Total-Count');
          });
        }

        const searchedMode = this.repoTypes[this.reposFilter].searchMode;
        const searchedURL = this.searchURL;
        const searchedQuery = this.searchQuery;

        $.getJSON(searchedURL, (result, _textStatus, request) => {
          if (searchedURL === this.searchURL) {
            this.repos = result.data;
            const count = request.getResponseHeader('X-Total-Count');
            if (searchedQuery === '' && searchedMode === '' && this.archivedFilter === 'both') {
              this.reposTotalCount = count;
            }
            Vue.set(this.counts, `${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`, count);
            this.finalPage = Math.ceil(count / this.searchLimit);
            this.updateHistory();
          }
        }).always(() => {
          if (searchedURL === this.searchURL) {
            this.isLoading = false;
          }
        });
      },

      repoIcon(repo) {
        if (repo.fork) {
          return 'octicon-repo-forked';
        } else if (repo.mirror) {
          return 'octicon-mirror';
        } else if (repo.template) {
          return `octicon-repo-template`;
        } else if (repo.private) {
          return 'octicon-lock';
        } else if (repo.internal) {
          return 'octicon-repo';
        }
        return 'octicon-repo';
      }
    }
  });
}

function initCtrlEnterSubmit() {
  $('.js-quick-submit').on('keydown', function (e) {
    if (((e.ctrlKey && !e.altKey) || e.metaKey) && (e.keyCode === 13 || e.keyCode === 10)) {
      $(this).closest('form').trigger('submit');
    }
  });
}

function initVueApp() {
  const el = document.getElementById('app');
  if (!el) {
    return;
  }

  initVueComponents();

  new Vue({
    el,
    delimiters: ['${', '}'],
    components: {
      ActivityTopAuthors,
    },
    data: () => {
      return {
        searchLimit: Number((document.querySelector('meta[name=_search_limit]') || {}).content),
        suburl: AppSubUrl,
        uid: Number((document.querySelector('meta[name=_context_uid]') || {}).content),
        activityTopAuthors: window.ActivityTopAuthors || [],
      };
    },
  });
}

function initIssueTimetracking() {
  $(document).on('click', '.issue-add-time', () => {
    $('.issue-start-time-modal').modal({
      duration: 200,
      onApprove() {
        $('#add_time_manual_form').trigger('submit');
      }
    }).modal('show');
    $('.issue-start-time-modal input').on('keydown', (e) => {
      if ((e.keyCode || e.key) === 13) {
        $('#add_time_manual_form').trigger('submit');
      }
    });
  });
  $(document).on('click', '.issue-start-time, .issue-stop-time', () => {
    $('#toggle_stopwatch_form').trigger('submit');
  });
  $(document).on('click', '.issue-cancel-time', () => {
    $('#cancel_stopwatch_form').trigger('submit');
  });
  $(document).on('click', 'button.issue-delete-time', function () {
    const sel = `.issue-delete-time-modal[data-id="${$(this).data('id')}"]`;
    $(sel).modal({
      duration: 200,
      onApprove() {
        $(`${sel} form`).trigger('submit');
      }
    }).modal('show');
  });
}

function initBranchOrTagDropdown(selector) {
  $(selector).each(function() {
    const $dropdown = $(this);
    $dropdown.find('.reference.column').on('click', function () {
      $dropdown.find('.scrolling.reference-list-menu').hide();
      $($(this).data('target')).show();
      return false;
    });
  });
}

function initFilterBranchTagDropdown(selector) {
  $(selector).each(function () {
    const $dropdown = $(this);
    const $data = $dropdown.find('.data');
    const data = {
      items: [],
      mode: $data.data('mode'),
      searchTerm: '',
      noResults: '',
      canCreateBranch: false,
      menuVisible: false,
      createTag: false,
      active: 0
    };
    $data.find('.item').each(function () {
      data.items.push({
        name: $(this).text(),
        url: $(this).data('url'),
        branch: $(this).hasClass('branch'),
        tag: $(this).hasClass('tag'),
        selected: $(this).hasClass('selected')
      });
    });
    $data.remove();
    new Vue({
      el: this,
      delimiters: ['${', '}'],
      data,
      computed: {
        filteredItems() {
          const items = this.items.filter((item) => {
            return ((this.mode === 'branches' && item.branch) || (this.mode === 'tags' && item.tag)) &&
              (!this.searchTerm || item.name.toLowerCase().includes(this.searchTerm.toLowerCase()));
          });

          // no idea how to fix this so linting rule is disabled instead
          this.active = (items.length === 0 && this.showCreateNewBranch ? 0 : -1); // eslint-disable-line vue/no-side-effects-in-computed-properties
          return items;
        },
        showNoResults() {
          return this.filteredItems.length === 0 && !this.showCreateNewBranch;
        },
        showCreateNewBranch() {
          if (!this.canCreateBranch || !this.searchTerm) {
            return false;
          }

          return this.items.filter((item) => item.name.toLowerCase() === this.searchTerm.toLowerCase()).length === 0;
        }
      },

      watch: {
        menuVisible(visible) {
          if (visible) {
            this.focusSearchField();
          }
        }
      },

      beforeMount() {
        this.noResults = this.$el.getAttribute('data-no-results');
        this.canCreateBranch = this.$el.getAttribute('data-can-create-branch') === 'true';

        document.body.addEventListener('click', (event) => {
          if (this.$el.contains(event.target)) return;
          if (this.menuVisible) {
            Vue.set(this, 'menuVisible', false);
          }
        });
      },

      methods: {
        selectItem(item) {
          const prev = this.getSelected();
          if (prev !== null) {
            prev.selected = false;
          }
          item.selected = true;
          window.location.href = item.url;
        },
        createNewBranch() {
          if (!this.showCreateNewBranch) return;
          $(this.$refs.newBranchForm).trigger('submit');
        },
        focusSearchField() {
          Vue.nextTick(() => {
            this.$refs.searchField.focus();
          });
        },
        getSelected() {
          for (let i = 0, j = this.items.length; i < j; ++i) {
            if (this.items[i].selected) return this.items[i];
          }
          return null;
        },
        getSelectedIndexInFiltered() {
          for (let i = 0, j = this.filteredItems.length; i < j; ++i) {
            if (this.filteredItems[i].selected) return i;
          }
          return -1;
        },
        scrollToActive() {
          let el = this.$refs[`listItem${this.active}`];
          if (!el || !el.length) return;
          if (Array.isArray(el)) {
            el = el[0];
          }

          const cont = this.$refs.scrollContainer;
          if (el.offsetTop < cont.scrollTop) {
            cont.scrollTop = el.offsetTop;
          } else if (el.offsetTop + el.clientHeight > cont.scrollTop + cont.clientHeight) {
            cont.scrollTop = el.offsetTop + el.clientHeight - cont.clientHeight;
          }
        },
        keydown(event) {
          if (event.keyCode === 40) { // arrow down
            event.preventDefault();

            if (this.active === -1) {
              this.active = this.getSelectedIndexInFiltered();
            }

            if (this.active + (this.showCreateNewBranch ? 0 : 1) >= this.filteredItems.length) {
              return;
            }
            this.active++;
            this.scrollToActive();
          } else if (event.keyCode === 38) { // arrow up
            event.preventDefault();

            if (this.active === -1) {
              this.active = this.getSelectedIndexInFiltered();
            }

            if (this.active <= 0) {
              return;
            }
            this.active--;
            this.scrollToActive();
          } else if (event.keyCode === 13) { // enter
            event.preventDefault();

            if (this.active >= this.filteredItems.length) {
              this.createNewBranch();
            } else if (this.active >= 0) {
              this.selectItem(this.filteredItems[this.active]);
            }
          } else if (event.keyCode === 27) { // escape
            event.preventDefault();
            this.menuVisible = false;
          }
        }
      }
    });
  });
}

$('.commit-button').on('click', function (e) {
  e.preventDefault();
  $(this).parent().find('.commit-body').toggle();
});

function initNavbarContentToggle() {
  const content = $('#navbar');
  const toggle = $('#navbar-expand-toggle');
  let isExpanded = false;
  toggle.on('click', () => {
    isExpanded = !isExpanded;
    if (isExpanded) {
      content.addClass('shown');
      toggle.addClass('active');
    } else {
      content.removeClass('shown');
      toggle.removeClass('active');
    }
  });
}

function initTopicbar() {
  const mgrBtn = $('#manage_topic');
  const editDiv = $('#topic_edit');
  const viewDiv = $('#repo-topics');
  const saveBtn = $('#save_topic');
  const topicDropdown = $('#topic_edit .dropdown');
  const topicForm = $('#topic_edit.ui.form');
  const topicPrompts = getPrompts();

  mgrBtn.on('click', () => {
    viewDiv.hide();
    editDiv.css('display', ''); // show Semantic UI Grid
  });

  function getPrompts() {
    const hidePrompt = $('div.hide#validate_prompt');
    const prompts = {
      countPrompt: hidePrompt.children('#count_prompt').text(),
      formatPrompt: hidePrompt.children('#format_prompt').text()
    };
    hidePrompt.remove();
    return prompts;
  }

  saveBtn.on('click', () => {
    const topics = $('input[name=topics]').val();

    $.post(saveBtn.data('link'), {
      _csrf: csrf,
      topics
    }, (_data, _textStatus, xhr) => {
      if (xhr.responseJSON.status === 'ok') {
        viewDiv.children('.topic').remove();
        if (topics.length) {
          const topicArray = topics.split(',');

          const last = viewDiv.children('a').last();
          for (let i = 0; i < topicArray.length; i++) {
            const link = $('<a class="ui repo-topic large label topic"></a>');
            link.attr('href', `${AppSubUrl}/explore/repos?q=${encodeURIComponent(topicArray[i])}&topic=1`);
            link.text(topicArray[i]);
            link.insertBefore(last);
          }
        }
        editDiv.css('display', 'none');
        viewDiv.show();
      }
    }).fail((xhr) => {
      if (xhr.status === 422) {
        if (xhr.responseJSON.invalidTopics.length > 0) {
          topicPrompts.formatPrompt = xhr.responseJSON.message;

          const {invalidTopics} = xhr.responseJSON;
          const topicLables = topicDropdown.children('a.ui.label');

          topics.split(',').forEach((value, index) => {
            for (let i = 0; i < invalidTopics.length; i++) {
              if (invalidTopics[i] === value) {
                topicLables.eq(index).removeClass('green').addClass('red');
              }
            }
          });
        } else {
          topicPrompts.countPrompt = xhr.responseJSON.message;
        }
      }
    }).always(() => {
      topicForm.form('validate form');
    });
  });

  topicDropdown.dropdown({
    allowAdditions: true,
    forceSelection: false,
    fullTextSearch: 'exact',
    fields: {name: 'description', value: 'data-value'},
    saveRemoteData: false,
    label: {
      transition: 'horizontal flip',
      duration: 200,
      variation: false,
      blue: true,
      basic: true,
    },
    className: {
      label: 'ui small label'
    },
    apiSettings: {
      url: `${AppSubUrl}/api/v1/topics/search?q={query}`,
      throttle: 500,
      cache: false,
      onResponse(res) {
        const formattedResponse = {
          success: false,
          results: [],
        };
        const query = stripTags(this.urlData.query.trim());
        let found_query = false;
        const current_topics = [];
        topicDropdown.find('div.label.visible.topic,a.label.visible').each((_, e) => { current_topics.push(e.dataset.value) });

        if (res.topics) {
          let found = false;
          for (let i = 0; i < res.topics.length; i++) {
            // skip currently added tags
            if (current_topics.includes(res.topics[i].topic_name)) {
              continue;
            }

            if (res.topics[i].topic_name.toLowerCase() === query.toLowerCase()) {
              found_query = true;
            }
            formattedResponse.results.push({description: res.topics[i].topic_name, 'data-value': res.topics[i].topic_name});
            found = true;
          }
          formattedResponse.success = found;
        }

        if (query.length > 0 && !found_query) {
          formattedResponse.success = true;
          formattedResponse.results.unshift({description: query, 'data-value': query});
        } else if (query.length > 0 && found_query) {
          formattedResponse.results.sort((a, b) => {
            if (a.description.toLowerCase() === query.toLowerCase()) return -1;
            if (b.description.toLowerCase() === query.toLowerCase()) return 1;
            if (a.description > b.description) return -1;
            if (a.description < b.description) return 1;
            return 0;
          });
        }

        return formattedResponse;
      },
    },
    onLabelCreate(value) {
      value = value.toLowerCase().trim();
      this.attr('data-value', value).contents().first().replaceWith(value);
      return $(this);
    },
    onAdd(addedValue, _addedText, $addedChoice) {
      addedValue = addedValue.toLowerCase().trim();
      $($addedChoice).attr('data-value', addedValue);
      $($addedChoice).attr('data-text', addedValue);
    }
  });

  $.fn.form.settings.rules.validateTopic = function (_values, regExp) {
    const topics = topicDropdown.children('a.ui.label');
    const status = topics.length === 0 || topics.last().attr('data-value').match(regExp);
    if (!status) {
      topics.last().removeClass('green').addClass('red');
    }
    return status && topicDropdown.children('a.ui.label.red').length === 0;
  };

  topicForm.form({
    on: 'change',
    inline: true,
    fields: {
      topics: {
        identifier: 'topics',
        rules: [
          {
            type: 'validateTopic',
            value: /^[a-z0-9][a-z0-9-]{0,35}$/,
            prompt: topicPrompts.formatPrompt
          },
          {
            type: 'maxCount[25]',
            prompt: topicPrompts.countPrompt
          }
        ]
      },
    }
  });
}

function updateDeadline(deadlineString) {
  $('#deadline-err-invalid-date').hide();
  $('#deadline-loader').addClass('loading');

  let realDeadline = null;
  if (deadlineString !== '') {
    const newDate = Date.parse(deadlineString);

    if (Number.isNaN(newDate)) {
      $('#deadline-loader').removeClass('loading');
      $('#deadline-err-invalid-date').show();
      return false;
    }
    realDeadline = new Date(newDate);
  }

  $.ajax(`${$('#update-issue-deadline-form').attr('action')}/deadline`, {
    data: JSON.stringify({
      due_date: realDeadline,
    }),
    headers: {
      'X-Csrf-Token': csrf,
      'X-Remote': true,
    },
    contentType: 'application/json',
    type: 'POST',
    success() {
      reload();
    },
    error() {
      $('#deadline-loader').removeClass('loading');
      $('#deadline-err-invalid-date').show();
    }
  });
}

function initIssueDue() {
  $(document).on('click', '.issue-due-edit', () => {
    $('#deadlineForm').fadeToggle(150);
  });
  $(document).on('click', '.issue-due-remove', () => {
    updateDeadline('');
  });
  $(document).on('submit', '.issue-due-form', () => {
    updateDeadline($('#deadlineDate').val());
    return false;
  });
}

function initIssueList() {
  const repolink = $('#repolink').val();
  const repoId = $('#repoId').val();
  const crossRepoSearch = $('#crossRepoSearch').val();
  const tp = $('#type').val();
  let issueSearchUrl = `${AppSubUrl}/api/v1/repos/${repolink}/issues?q={query}&type=${tp}`;
  if (crossRepoSearch === 'true') {
    issueSearchUrl = `${AppSubUrl}/api/v1/repos/issues/search?q={query}&priority_repo_id=${repoId}&type=${tp}`;
  }
  $('#new-dependency-drop-list')
    .dropdown({
      apiSettings: {
        url: issueSearchUrl,
        onResponse(response) {
          const filteredResponse = {success: true, results: []};
          const currIssueId = $('#new-dependency-drop-list').data('issue-id');
          // Parse the response from the api to work with our dropdown
          $.each(response, (_i, issue) => {
            // Don't list current issue in the dependency list.
            if (issue.id === currIssueId) {
              return;
            }
            filteredResponse.results.push({
              name: `#${issue.number} ${htmlEscape(issue.title)
              }<div class="text small dont-break-out">${htmlEscape(issue.repository.full_name)}</div>`,
              value: issue.id
            });
          });
          return filteredResponse;
        },
        cache: false,
      },

      fullTextSearch: true
    });

  function excludeLabel (item) {
    const href = $(item).attr('href');
    const id = $(item).data('label-id');

    const regStr = `labels=((?:-?[0-9]+%2c)*)(${id})((?:%2c-?[0-9]+)*)&`;
    const newStr = 'labels=$1-$2$3&';

    window.location = href.replace(new RegExp(regStr), newStr);
  }

  $('.menu a.label-filter-item').each(function () {
    $(this).on('click', function (e) {
      if (e.altKey) {
        e.preventDefault();
        excludeLabel(this);
      }
    });
  });

  $('.menu .ui.dropdown.label-filter').on('keydown', (e) => {
    if (e.altKey && e.keyCode === 13) {
      const selectedItems = $('.menu .ui.dropdown.label-filter .menu .item.selected');
      if (selectedItems.length > 0) {
        excludeLabel($(selectedItems[0]));
      }
    }
  });
}

$(document).on('click', 'button[name="is_review"]', (e) => {
  $(e.target).closest('form').append('<input type="hidden" name="is_review" value="true">');
});

$(document).on('submit', '.conversation-holder form', async (e) => {
  e.preventDefault();
  const form = $(e.target);
  const newConversationHolder = $(await $.post(form.attr('action'), form.serialize()));
  const {path, side, idx} = newConversationHolder.data();

  form.closest('.conversation-holder').replaceWith(newConversationHolder);
  if (form.closest('tr').data('line-type') === 'same') {
    $(`a.add-code-comment[data-path="${path}"][data-idx="${idx}"]`).addClass('invisible');
  } else {
    $(`a.add-code-comment[data-path="${path}"][data-side="${side}"][data-idx="${idx}"]`).addClass('invisible');
  }
  newConversationHolder.find('.dropdown').dropdown();
  initReactionSelector(newConversationHolder);
  initClipboard();
});

$(document).on('click', '.oauth-login-image', () => {
  const oauthLoader = $('#oauth2-login-loader');
  const oauthNav = $('#oauth2-login-navigator');

  oauthNav.hide();
  oauthLoader.removeClass('disabled');

  setTimeout(() => {
    // recover previous content to let user try again
    // usually redirection will be performed before this action
    oauthLoader.addClass('disabled');
    oauthNav.show();
  }, 5000);
});