# All files / src/plugins dataTable.ts

96.55% Statements 28/29
87.5% Branches 7/8
100% Functions 4/4
96.55% Lines 28/29

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     import cheerio from 'cheerio';
    import { FrontMatter, PluginContext } from './Plugin';
    import md from '../lib/markdown-it';

    const CSS_FILE_NAME = 'dataTableAssets/datatables.min.css';
    const CSS_ADDITIONAL = 'dataTableAssets/datatables-additional.css';
    const JS_FILE_NAME = 'dataTableAssets/datatables.min.js';

    const initScript = `
      <script>
        function getTableOptions(el) {
          const options = {};
          if ($(el).hasClass('sortable-table')) {
            options.searching = false;
            options.paging = false;
            options.info = false;
          } else if ($(el).hasClass('searchable-table')) {
            options.ordering = false;
            options.paging = false;
            options.info = false;
            options.dom = '<"row"<"col-sm-12"f>>' + '<"row"<"col-sm-12"t>>';
          } else if ($(el).hasClass('sortable-searchable-table')) {
            options.paging = false;
            options.info = false;
            options.dom = '<"row"<"col-sm-12"f>>' + '<"row"<"col-sm-12"t>>';
          }
          return options;
        }

        function initializeTables(tables) {
          if (!tables || tables.length === 0) return;
          tables.forEach(table => {
            const options = getTableOptions(table);
            $(table).DataTable(options);
            $(table).addClass('dt-processed');
          });
        }

        function setupTableObserver() {
          const observer = new MutationObserver((mutations) => {
            let newTables = [];

            mutations.forEach(mutation => {
              if (mutation.addedNodes.length) {
                mutation.addedNodes.forEach(node => {

                  if (node.nodeType === 1 && node.tagName === 'TABLE' &&
                      !$(node).hasClass('dt-processed') &&
                      ($(node).hasClass('sortable-table') ||
                       $(node).hasClass('searchable-table') ||
                       $(node).hasClass('sortable-searchable-table'))) {
                    newTables.push(node);
                  }

                  if (node.nodeType === 1 && node.querySelectorAll) {
                    const tablesInNode = node.querySelectorAll(
                    'table.sortable-table:not(.dt-processed), ' +
                    'table.searchable-table:not(.dt-processed), ' +
                    'table.sortable-searchable-table:not(.dt-processed)');
                    if (tablesInNode.length) {
                      newTables = [...newTables, ...tablesInNode];
                    }
                  }
                });
              }
            });

            if (newTables.length > 0) {
              initializeTables(newTables);
            }
          });

          // Start observing the entire document for changes
          observer.observe(document.body, {
            childList: true,
            subtree: true
          });

          return observer;
        }

        document.addEventListener('DOMContentLoaded', function() {
          // Process any existing tables
          const existingTables = document.querySelectorAll(
            'table.sortable-table:not(.dt-processed), ' +
            'table.searchable-table:not(.dt-processed), ' +
            'table.sortable-searchable-table:not(.dt-processed)'
          );
          if (existingTables.length > 0) {
            initializeTables(existingTables);
          }

          setupTableObserver();
        });

      </script>
    `;

    export = {
      getLinks: () => [
        `<link rel="stylesheet" href="${CSS_FILE_NAME}">`,
        `<link rel="stylesheet" href="${CSS_ADDITIONAL}">`,
      ],
      getScripts: () => [`<script src="${JS_FILE_NAME}"></script>`, initScript],
      postRender: (pluginContext: PluginContext, frontmatter: FrontMatter, content: string) => {
        const $ = cheerio.load(content);

        $('d-table').each((index: number, node: cheerio.Element) => {
          const $node = $(node);
          const html = $node.html();

          Iif (html == null) {
            return;
          }

          const isSortable = $node.attr('sortable') !== undefined;
          const isSearchable = $node.attr('searchable') !== undefined;

          let tableClass: string = '';
          if (isSortable && isSearchable) {
            tableClass = 'sortable-searchable-table';
          } else if (isSortable) {
            tableClass = 'sortable-table';
          } else if (isSearchable) {
            tableClass = 'searchable-table';
          }

          const renderedTable = md.render(html);
          const $renderedTable = $(renderedTable);
          $renderedTable.find('table')
            .addClass(tableClass)
            .attr('id', `datatable-${index}`);

          $node.replaceWith($renderedTable);
        });

        return $.html();
      },
    };