Convert frontend code to typescript (#31559)

None of the frontend js/ts files was touched besides these two commands
(edit: no longer true, I touched one file in
61105d0618
because of a deprecation that was not showing before the rename).

`tsc` currently reports 778 errors, so I have disabled it in CI as
planned.

Everything appears to work fine.

web_src/js/features/repo-issue-content.ts

@@ -0,0 +1,154 @@
+import $ from 'jquery';
+import {svg} from '../svg.ts';
+import {showErrorToast} from '../modules/toast.ts';
+import {GET, POST} from '../modules/fetch.ts';
+import {showElem} from '../utils/dom.ts';
+
+const {appSubUrl} = window.config;
+let i18nTextEdited;
+let i18nTextOptions;
+let i18nTextDeleteFromHistory;
+let i18nTextDeleteFromHistoryConfirm;
+
+function showContentHistoryDetail(issueBaseUrl, commentId, historyId, itemTitleHtml) {
+  let $dialog = $('.content-history-detail-dialog');
+  if ($dialog.length) return;
+
+  $dialog = $(`
+<div class="ui modal content-history-detail-dialog">
+  ${svg('octicon-x', 16, 'close icon inside')}
+  <div class="header tw-flex tw-items-center tw-justify-between">
+    <div>${itemTitleHtml}</div>
+    <div class="ui dropdown dialog-header-options tw-mr-8 tw-hidden">
+      ${i18nTextOptions}
+      ${svg('octicon-triangle-down', 14, 'dropdown icon')}
+      <div class="menu">
+        <div class="item red text" data-option-item="delete">${i18nTextDeleteFromHistory}</div>
+      </div>
+    </div>
+  </div>
+  <div class="comment-diff-data is-loading"></div>
+</div>`);
+  $dialog.appendTo($('body'));
+  $dialog.find('.dialog-header-options').dropdown({
+    showOnFocus: false,
+    allowReselection: true,
+    async onChange(_value, _text, $item) {
+      const optionItem = $item.data('option-item');
+      if (optionItem === 'delete') {
+        if (window.confirm(i18nTextDeleteFromHistoryConfirm)) {
+          try {
+            const params = new URLSearchParams();
+            params.append('comment_id', commentId);
+            params.append('history_id', historyId);
+
+            const response = await POST(`${issueBaseUrl}/content-history/soft-delete?${params.toString()}`);
+            const resp = await response.json();
+
+            if (resp.ok) {
+              $dialog.modal('hide');
+            } else {
+              showErrorToast(resp.message);
+            }
+          } catch (error) {
+            console.error('Error:', error);
+            showErrorToast('An error occurred while deleting the history.');
+          }
+        }
+      } else { // required by eslint
+        showErrorToast(`unknown option item: ${optionItem}`);
+      }
+    },
+    onHide() {
+      $(this).dropdown('clear', true);
+    },
+  });
+  $dialog.modal({
+    async onShow() {
+      try {
+        const params = new URLSearchParams();
+        params.append('comment_id', commentId);
+        params.append('history_id', historyId);
+
+        const url = `${issueBaseUrl}/content-history/detail?${params.toString()}`;
+        const response = await GET(url);
+        const resp = await response.json();
+
+        const commentDiffData = $dialog.find('.comment-diff-data')[0];
+        commentDiffData?.classList.remove('is-loading');
+        commentDiffData.innerHTML = resp.diffHtml;
+        // there is only one option "item[data-option-item=delete]", so the dropdown can be entirely shown/hidden.
+        if (resp.canSoftDelete) {
+          showElem($dialog.find('.dialog-header-options'));
+        }
+      } catch (error) {
+        console.error('Error:', error);
+      }
+    },
+    onHidden() {
+      $dialog.remove();
+    },
+  }).modal('show');
+}
+
+function showContentHistoryMenu(issueBaseUrl, $item, commentId) {
+  const $headerLeft = $item.find('.comment-header-left');
+  const menuHtml = `
+  <div class="ui dropdown interact-fg content-history-menu" data-comment-id="${commentId}">
+    &bull; ${i18nTextEdited}${svg('octicon-triangle-down', 14, 'dropdown icon')}
+    <div class="menu">
+    </div>
+  </div>`;
+
+  $headerLeft.find(`.content-history-menu`).remove();
+  $headerLeft.append($(menuHtml));
+  $headerLeft.find('.dropdown').dropdown({
+    action: 'hide',
+    apiSettings: {
+      cache: false,
+      url: `${issueBaseUrl}/content-history/list?comment_id=${commentId}`,
+    },
+    saveRemoteData: false,
+    onHide() {
+      $(this).dropdown('change values', null);
+    },
+    onChange(value, itemHtml, $item) {
+      if (value && !$item.find('[data-history-is-deleted=1]').length) {
+        showContentHistoryDetail(issueBaseUrl, commentId, value, itemHtml);
+      }
+    },
+  });
+}
+
+export async function initRepoIssueContentHistory() {
+  const issueIndex = $('#issueIndex').val();
+  if (!issueIndex) return;
+
+  const $itemIssue = $('.repository.issue .timeline-item.comment.first'); // issue(PR) main content
+  const $comments = $('.repository.issue .comment-list .comment'); // includes: issue(PR) comments, review comments, code comments
+  if (!$itemIssue.length && !$comments.length) return;
+
+  const repoLink = $('#repolink').val();
+  const issueBaseUrl = `${appSubUrl}/${repoLink}/issues/${issueIndex}`;
+
+  try {
+    const response = await GET(`${issueBaseUrl}/content-history/overview`);
+    const resp = await response.json();
+
+    i18nTextEdited = resp.i18n.textEdited;
+    i18nTextDeleteFromHistory = resp.i18n.textDeleteFromHistory;
+    i18nTextDeleteFromHistoryConfirm = resp.i18n.textDeleteFromHistoryConfirm;
+    i18nTextOptions = resp.i18n.textOptions;
+
+    if (resp.editedHistoryCountMap[0] && $itemIssue.length) {
+      showContentHistoryMenu(issueBaseUrl, $itemIssue, '0');
+    }
+    for (const [commentId, _editedCount] of Object.entries(resp.editedHistoryCountMap)) {
+      if (commentId === '0') continue;
+      const $itemComment = $(`#issuecomment-${commentId}`);
+      showContentHistoryMenu(issueBaseUrl, $itemComment, commentId);
+    }
+  } catch (error) {
+    console.error('Error:', error);
+  }
+}