(function () {
  'use strict';

  const cardSelector = '[data-shared-editable-action-card]';
  const scrollRestoreStates = new WeakMap();

  const getCard = (element) => element.closest(cardSelector);

  const getScrollContainer = (element) => {
    let candidate = element?.parentElement || null;

    while (candidate && candidate !== document.body) {
      const style = window.getComputedStyle(candidate);
      const scrollable = /(auto|scroll|overlay)/.test(style.overflowY);
      if (scrollable && candidate.scrollHeight > candidate.clientHeight) {
        return candidate;
      }
      candidate = candidate.parentElement;
    }

    return document.scrollingElement || document.documentElement;
  };

  const captureScrollPosition = (root, card) => {
    const container = getScrollContainer(card);
    scrollRestoreStates.set(root, {
      card,
      container,
      top: container.scrollTop,
      left: container.scrollLeft,
      timer: null,
    });
  };

  const restoreScrollPosition = (root) => {
    const state = scrollRestoreStates.get(root);
    if (!state) {
      return;
    }

    if (state.timer) {
      window.clearTimeout(state.timer);
    }

    state.timer = window.setTimeout(() => {
      requestAnimationFrame(() => {
        requestAnimationFrame(() => {
          if (state.container?.isConnected) {
            state.container.scrollTo({ top: state.top, left: state.left, behavior: 'auto' });
          }
          scrollRestoreStates.delete(root);
        });
      });
    }, 100);
  };

  const getDirectDeleteElement = (card, selector) => Array.from(card?.children || [])
    .find((child) => child.matches(selector)) || null;

  const setEditMode = (card, enabled) => {
    if (!card) {
      return;
    }

    const readView = card.querySelector('[data-shared-editable-card-read]');
    const editView = card.querySelector('[data-shared-editable-card-form]');
    const editButtons = card.querySelectorAll('[data-shared-editable-card-edit]');

    if (readView) {
      readView.hidden = enabled;
    }
    if (editView) {
      editView.hidden = !enabled;
    }
    editButtons.forEach((editButton) => {
      editButton.disabled = enabled;
      editButton.setAttribute('aria-disabled', String(enabled));
      editButton.classList.toggle('sg-button--inactive', enabled);
    });
  };

  const resetDeleteConfirmation = (card) => {
    const stage = card?.closest('.sg-delete-confirmation-pattern__stage');
    const confirmation = getDirectDeleteElement(card, '[data-shared-editable-card-delete-confirmation]');
    const input = confirmation?.querySelector('[data-shared-editable-card-delete-input]');
    const submit = confirmation?.querySelector('[data-shared-editable-card-delete-submit]');

    if (input) {
      input.value = '';
    }
    if (submit) {
      submit.disabled = true;
      submit.setAttribute('aria-disabled', 'true');
      submit.classList.add('sg-button--process-inactive');
    }
    if (confirmation) {
      confirmation.hidden = true;
    }
    if (stage) {
      stage.dataset.dialogOpen = 'false';
    }
  };

  const openDeleteConfirmation = (card) => {
    const stage = card?.closest('.sg-delete-confirmation-pattern__stage');
    const confirmation = getDirectDeleteElement(card, '[data-shared-editable-card-delete-confirmation]');
    const input = confirmation?.querySelector('[data-shared-editable-card-delete-input]');

    if (input) {
      input.value = '';
      input.focus();
    }
    if (confirmation) {
      confirmation.hidden = false;
    }
    if (stage) {
      stage.dataset.dialogOpen = 'true';
    }
  };

  const updateDeleteButton = (input) => {
    const card = getCard(input);
    const confirmation = input?.closest('[data-shared-editable-card-delete-confirmation]');
    const submit = confirmation?.querySelector('[data-shared-editable-card-delete-submit]');
    const token = card?.dataset.sharedEditableDeleteToken || 'DELETE';
    const valid = input.value === token;

    if (submit) {
      submit.disabled = !valid;
      submit.setAttribute('aria-disabled', String(!valid));
      submit.classList.toggle('sg-button--process-inactive', !valid);
    }
  };

  const init = (root) => {
    if (!root || root.dataset.sharedEditableActionCardsInitialized === 'true') {
      return;
    }

    root.dataset.sharedEditableActionCardsInitialized = 'true';
    root.querySelectorAll(cardSelector).forEach((card) => setEditMode(card, false));
    root.addEventListener('click', (event) => {
      const edit = event.target.closest('[data-shared-editable-card-edit]');
      if (edit && root.contains(edit)) {
        const card = getCard(edit);
        captureScrollPosition(root, card);
        setEditMode(card, true);
        return;
      }

      const cancel = event.target.closest('[data-shared-editable-card-cancel]');
      if (cancel && root.contains(cancel)) {
        const card = getCard(cancel);
        resetDeleteConfirmation(card);
        setEditMode(card, false);
        scrollRestoreStates.delete(root);
        return;
      }

      const deleteButton = event.target.closest('[data-shared-editable-card-delete]');
      if (deleteButton && root.contains(deleteButton)) {
        openDeleteConfirmation(getCard(deleteButton));
        return;
      }

      const deleteCancel = event.target.closest('[data-shared-editable-card-delete-cancel]');
      if (deleteCancel && root.contains(deleteCancel)) {
        resetDeleteConfirmation(getCard(deleteCancel));
      }
    });

    const scrollObserver = new MutationObserver(() => {
      const state = scrollRestoreStates.get(root);
      if (state && !root.contains(state.card)) {
        restoreScrollPosition(root);
      }
    });
    scrollObserver.observe(root, { childList: true, subtree: true });

    root.addEventListener('input', (event) => {
      const input = event.target.closest('[data-shared-editable-card-delete-input]');
      if (input && root.contains(input)) {
        updateDeleteButton(input);
      }
    });
  };

  window.SharedEditableActionCard = { init, resetDeleteConfirmation, setEditMode };
}());