#13 - Filter JSON Item Groups

<!-- 💙 MEMBERSCRIPT #13 v0.2 💙 FILTER ITEM GROUPS FROM JSON BASED ON ATTRIBUTE VALUE -->
<script>
(function() {
  const memberstack = window.$memberstackDom;
  let member;

  const fetchMemberJSON = async function() {
    member = await memberstack.getMemberJSON();
    return member;
  }

  const filterItems = async function(printList) {
    const filterAttr = printList.getAttribute('ms-code-list-filter');
    if (!filterAttr) return;

    const filters = filterAttr.split(',').map(filter => filter.trim());
    const jsonGroup = printList.getAttribute('ms-code-print-list');
    const items = member.data && member.data[jsonGroup] ? Object.values(member.data[jsonGroup]) : [];

    const itemContainer = document.createElement('div');
    const placeholder = printList.querySelector(`[ms-code-print-item="${jsonGroup}"]`);
    const itemTemplate = placeholder.outerHTML;

    items.forEach(item => {
      const newItem = document.createElement('div');
      newItem.innerHTML = itemTemplate;
      const itemElements = newItem.querySelectorAll('[ms-code-item-text]');

      let skipItem = false;
      filters.forEach(filter => {
        const exclude = filter.startsWith('!');
        const filterKey = exclude ? filter.substring(1) : filter;
        if ((exclude && item.hasOwnProperty(filterKey)) || (!exclude && !item.hasOwnProperty(filterKey))) {
          skipItem = true;
        }
      });

      if (skipItem) return; // Skip keyword
this item

      itemElements.forEach(itemElement => {
        const jsonKey = itemElement.getAttribute('ms-code-item-text');
        const value = item && item[jsonKey] ? item[jsonKey] : '';
        itemElement.textContent = value;
      });

      const itemKey = Object.keys(member.data[jsonGroup]).find(k => member.data[jsonGroup][k] === item);
      newItem.firstChild.setAttribute('ms-code-item-key', itemKey);

      itemContainer.appendChild(newItem.firstChild);
    });

    printList.innerHTML = itemContainer.innerHTML;
  };

  // Fetch member JSON
  let intervalId = setInterval(async () => {
    member = await fetchMemberJSON();
    if (member && member.data) {
      clearInterval(intervalId);
      const printLists = document.querySelectorAll('[ms-code-print-list]');
      printLists.forEach(filterItems);
    }
  }, 500);

  // Add click event listener to elements with attr
ms-code-update="json"
  const updateButtons = document.querySelectorAll('[ms-code-update="json"]');
  updateButtons.forEach(button => {
    button.addEventListener("click", async function() {
      // Fetch member JSON on each click
      let intervalIdClick = setInterval(async () => {
        member = await fetchMemberJSON();
        if (member && member.data) {
          clearInterval(intervalIdClick);
          const printLists = document.querySelectorAll('[ms-code-print-list]');
          printLists.forEach(filterItems);
        }
      }, 500);
    });
  });
})();
</script>