{% load i18n %}
<div class="space-y-3 max-w-2xl" data-links-json data-field-name="{{ widget.field_name }}">
  <div class="space-y-2" data-links-container>
    {% for link in widget.links %}
      <div class="flex items-center gap-2" data-link-row>
        <div class="w-2/5">
          <input type="text" value="{{ link.title }}" class="border border-base-200 bg-white font-medium min-w-20 placeholder-base-400 rounded shadow-sm text-font-default-light text-sm focus:ring focus:ring-primary-300 focus:border-primary-600 focus:outline-none group-[.errors]:border-red-600 group-[.errors]:focus:ring-red-200 dark:bg-base-900 dark:border-base-700 dark:text-font-default-dark dark:focus:border-primary-600 dark:focus:ring-primary-700 dark:focus:ring-opacity-50 dark:group-[.errors]:border-red-500 dark:group-[.errors]:focus:ring-red-600/40 px-3 py-2 w-full max-w-2xl link-title" placeholder="{% trans 'Link Title (e.g. Source)' %}">
        </div>
        <div class="w-3/5">
          <input type="url" value="{{ link.link }}" class="border border-base-200 bg-white font-medium min-w-20 placeholder-base-400 rounded shadow-sm text-font-default-light text-sm focus:ring focus:ring-primary-300 focus:border-primary-600 focus:outline-none group-[.errors]:border-red-600 group-[.errors]:focus:ring-red-200 dark:bg-base-900 dark:border-base-700 dark:text-font-default-dark dark:focus:border-primary-600 dark:focus:ring-primary-700 dark:focus:ring-opacity-50 dark:group-[.errors]:border-red-500 dark:group-[.errors]:focus:ring-red-600/40 px-3 py-2 w-full max-w-2xl link-url" placeholder="{% trans 'URL (e.g. https://...)' %}">
        </div>
        <button type="button" class="remove-link-btn text-red-500 hover:text-red-700 dark:text-red-400 dark:hover:text-red-300 p-2 text-sm transition-colors duration-150" title="Remove Link">
          <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5" viewBox="0 0 20 20" fill="currentColor">
            <path fill-rule="evenodd" d="M9 2a1 1 0 00-.894.553L7.382 4H4a1 1 0 000 2v10a2 2 0 002 2h8a2 2 0 002-2V6a1 1 0 100-2h-3.382l-.724-1.447A1 1 0 0011 2H9zM7 8a1 1 0 012 0v6a1 1 0 11-2 0V8zm5-1a1 1 0 00-1 1v6a1 1 0 102 0V8a1 1 0 00-1-1z" clip-rule="evenodd" />
          </svg>
        </button>
      </div>
    {% empty %}
      <div class="flex items-center gap-2" data-link-row>
        <div class="w-2/5">
          <input type="text" value="" class="border border-base-200 bg-white font-medium min-w-20 placeholder-base-400 rounded shadow-sm text-font-default-light text-sm focus:ring focus:ring-primary-300 focus:border-primary-600 focus:outline-none group-[.errors]:border-red-600 group-[.errors]:focus:ring-red-200 dark:bg-base-900 dark:border-base-700 dark:text-font-default-dark dark:focus:border-primary-600 dark:focus:ring-primary-700 dark:focus:ring-opacity-50 dark:group-[.errors]:border-red-500 dark:group-[.errors]:focus:ring-red-600/40 px-3 py-2 w-full max-w-2xl link-title" placeholder="{% trans 'Link Title (e.g. Source)' %}">
        </div>
        <div class="w-3/5">
          <input type="url" value="" class="border border-base-200 bg-white font-medium min-w-20 placeholder-base-400 rounded shadow-sm text-font-default-light text-sm focus:ring focus:ring-primary-300 focus:border-primary-600 focus:outline-none group-[.errors]:border-red-600 group-[.errors]:focus:ring-red-200 dark:bg-base-900 dark:border-base-700 dark:text-font-default-dark dark:focus:border-primary-600 dark:focus:ring-primary-700 dark:focus:ring-opacity-50 dark:group-[.errors]:border-red-500 dark:group-[.errors]:focus:ring-red-600/40 px-3 py-2 w-full max-w-2xl link-url" placeholder="{% trans 'URL (e.g. https://...)' %}">
        </div>
        <button type="button" class="remove-link-btn text-red-500 hover:text-red-700 dark:text-red-400 dark:hover:text-red-300 p-2 text-sm transition-colors duration-150" title="Remove Link">
          <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5" viewBox="0 0 20 20" fill="currentColor">
            <path fill-rule="evenodd" d="M9 2a1 1 0 00-.894.553L7.382 4H4a1 1 0 000 2v10a2 2 0 002 2h8a2 2 0 002-2V6a1 1 0 100-2h-3.382l-.724-1.447A1 1 0 0011 2H9zM7 8a1 1 0 012 0v6a1 1 0 11-2 0V8zm5-1a1 1 0 00-1 1v6a1 1 0 102 0V8a1 1 0 00-1-1z" clip-rule="evenodd" />
          </svg>
        </button>
      </div>
    {% endfor %}
  </div>

  <button type="button" class="add-link-btn mt-2 inline-flex items-center gap-1.5 px-3 py-1.5 text-xs font-semibold text-primary-700 dark:text-primary-300 hover:bg-primary-50 dark:hover:bg-primary-950/30 rounded border border-primary-200 dark:border-primary-800 transition-colors duration-150" data-add-link>
    <svg xmlns="http://www.w3.org/2000/svg" class="h-4 w-4" viewBox="0 0 20 20" fill="currentColor">
      <path fill-rule="evenodd" d="M10 5a1 1 0 011 1v3h3a1 1 0 110 2h-3v3a1 1 0 11-2 0v-3H6a1 1 0 110-2h3V6a1 1 0 011-1z" clip-rule="evenodd" />
    </svg>
    {% trans "Add Link" %}
  </button>
  
  <input type="hidden" name="{{ widget.field_name }}" value='{{ widget.serialized|escapejs }}'>
</div>

<script>
(function () {
  function init(root) {
    if (root.getAttribute("data-initialized") === "true") return;
    root.setAttribute("data-initialized", "true");
    var fieldName = root.getAttribute("data-field-name");
    if (!fieldName) return;

    var container = root.querySelector("[data-links-container]");
    var hidden = root.querySelector('input[type="hidden"][name="' + fieldName + '"]');
    if (!container || !hidden) return;

    function serialize() {
      var result = [];
      container.querySelectorAll('[data-link-row]').forEach(function (row) {
        var titleInput = row.querySelector('.link-title');
        var urlInput = row.querySelector('.link-url');
        var titleVal = titleInput ? titleInput.value.trim() : '';
        var urlVal = urlInput ? urlInput.value.trim() : '';
        
        if (titleVal !== '' || urlVal !== '') {
          result.push({ title: titleVal, link: urlVal });
        }
      });
      try {
        hidden.value = JSON.stringify(result);
      } catch (e) {
        console.error('JSON stringify error:', e);
      }
    }

    function bindInputEvents(input) {
      input.addEventListener('input', serialize);
    }

    container.querySelectorAll('input').forEach(bindInputEvents);

    var addBtn = root.querySelector('[data-add-link]');
    if (addBtn) {
      addBtn.addEventListener('click', function () {
        var row = document.createElement('div');
        row.className = 'flex items-center gap-2 mt-2';
        row.setAttribute('data-link-row', '');

        var col1 = document.createElement('div');
        col1.className = 'w-2/5';
        var inputTitle = document.createElement('input');
        inputTitle.type = 'text';
        inputTitle.className = 'border border-base-200 bg-white font-medium min-w-20 placeholder-base-400 rounded shadow-sm text-font-default-light text-sm focus:ring focus:ring-primary-300 focus:border-primary-600 focus:outline-none group-[.errors]:border-red-600 group-[.errors]:focus:ring-red-200 dark:bg-base-900 dark:border-base-700 dark:text-font-default-dark dark:focus:border-primary-600 dark:focus:ring-primary-700 dark:focus:ring-opacity-50 dark:group-[.errors]:border-red-500 dark:group-[.errors]:focus:ring-red-600/40 px-3 py-2 w-full max-w-2xl link-title';
        inputTitle.placeholder = 'Link Title (e.g. Source)';
        bindInputEvents(inputTitle);
        col1.appendChild(inputTitle);

        var col2 = document.createElement('div');
        col2.className = 'w-3/5';
        var inputUrl = document.createElement('input');
        inputUrl.type = 'url';
        inputUrl.className = 'border border-base-200 bg-white font-medium min-w-20 placeholder-base-400 rounded shadow-sm text-font-default-light text-sm focus:ring focus:ring-primary-300 focus:border-primary-600 focus:outline-none group-[.errors]:border-red-600 group-[.errors]:focus:ring-red-200 dark:bg-base-900 dark:border-base-700 dark:text-font-default-dark dark:focus:border-primary-600 dark:focus:ring-primary-700 dark:focus:ring-opacity-50 dark:group-[.errors]:border-red-500 dark:group-[.errors]:focus:ring-red-600/40 px-3 py-2 w-full max-w-2xl link-url';
        inputUrl.placeholder = 'URL (e.g. https://...)';
        bindInputEvents(inputUrl);
        col2.appendChild(inputUrl);

        var delBtn = document.createElement('button');
        delBtn.type = 'button';
        delBtn.className = 'remove-link-btn text-red-500 hover:text-red-700 dark:text-red-400 dark:hover:text-red-300 p-2 text-sm transition-colors duration-150';
        delBtn.title = 'Remove Link';
        delBtn.innerHTML = '<svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5" viewBox="0 0 20 20" fill="currentColor"><path fill-rule="evenodd" d="M9 2a1 1 0 00-.894.553L7.382 4H4a1 1 0 000 2v10a2 2 0 002 2h8a2 2 0 002-2V6a1 1 0 100-2h-3.382l-.724-1.447A1 1 0 0011 2H9zM7 8a1 1 0 012 0v6a1 1 0 11-2 0V8zm5-1a1 1 0 00-1 1v6a1 1 0 102 0V8a1 1 0 00-1-1z" clip-rule="evenodd" /></svg>';
        
        delBtn.addEventListener('click', function () {
          row.remove();
          serialize();
        });

        row.appendChild(col1);
        row.appendChild(col2);
        row.appendChild(delBtn);
        container.appendChild(row);

        inputTitle.focus();
        serialize();
      });
    }

    container.querySelectorAll('.remove-link-btn').forEach(function (btn) {
      btn.addEventListener('click', function () {
        var row = btn.closest('[data-link-row]');
        if (row) {
          row.remove();
          serialize();
        }
      });
    });
  }

  function initializeWidgets() {
    document.querySelectorAll('[data-links-json]').forEach(init);
  }

  if (document.readyState === 'loading') {
    document.addEventListener("DOMContentLoaded", initializeWidgets);
  } else {
    initializeWidgets();
  }
  
  setTimeout(initializeWidgets, 100);

  document.addEventListener("formset:added", function (event) {
    var newFormset = event.detail.formsetRow;
    if (newFormset) {
      newFormset.querySelectorAll('[data-links-json]').forEach(init);
    }
  });
})();
</script>