{% load i18n %}
<div class="space-y-3 max-w-2xl" data-multilang-address data-field-name="{{ widget.field_name }}">
  <div>
    <div class="w-full max-w-2xl pr-2">
      <div class="flex items-center gap-2 py-1.5">
        <span class="text-xs font-semibold text-font-subtle-light dark:text-font-subtle-dark uppercase tracking-wider">
          {% trans "Select Language" %}:
        </span>
        <select class="lang-select border border-base-200 bg-white font-semibold min-w-[120px] rounded shadow-sm text-font-default-light text-xs focus:ring focus:ring-primary-300 focus:border-primary-600 focus:outline-none 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 px-3 py-1.5" data-lang-select>
          {% for code in widget.languages %}
            <option value="{{ code }}">
              {{ code|upper }}{% if widget.has_value_codes and code in widget.has_value_codes %} ✓{% endif %}
            </option>
          {% endfor %}
        </select>
      </div>
    </div>
  </div>

  <div class="space-y-3" data-inputs>
    {% for item in widget.rendered_languages %}
      <div class="hidden" data-input-wrapper data-lang-code="{{ item.code }}">
        <div class="flex items-center gap-2 mb-1">
          <span class="text-xs font-medium text-font-subtle-light dark:text-font-subtle-dark">
            {{ item.code|upper }}
          </span>
        </div>
        
        <div class="space-y-2" data-parts-container>
          {% for part in item.parts %}
            <div class="flex items-center gap-2" data-part-row>
              <input type="text" value="{{ part }}" 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" placeholder="Address part (e.g. Book 1, Chapter 9)">
              <button type="button" class="remove-part-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 part">
                <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-part-row>
              <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" placeholder="Address part (e.g. Book 1, Chapter 9)">
              <button type="button" class="remove-part-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 part">
                <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-part-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-part>
          <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 Part" %}
        </button>
      </div>
    {% endfor %}
    <input type="hidden" name="{{ widget.field_name }}" value='{{ widget.serialized|escapejs }}'>
  </div>

  <div class="text-xs text-font-subtle-light dark:text-font-subtle-dark">
    {% trans "Click a language code to manage its address parts." %}
  </div>
</div>

<style>
  /* Reuse styling rules from main widget to maintain consistency */
  [data-multilang-address] [data-input-wrapper].hidden {
    display: none !important;
  }
  
  [data-multilang-address] [data-input-wrapper]:not(.hidden) {
    display: block !important;
  }

  .lang-select {
    cursor: pointer;
    appearance: none !important;
    -webkit-appearance: none !important;
    -moz-appearance: none !important;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3E%3C/svg%3E") !important;
    background-repeat: no-repeat !important;
    background-position: right 0.5rem center !important;
    background-size: 1.25rem !important;
    padding-right: 1.75rem !important;
  }
  
  [dir="rtl"] .lang-select {
    background-position: left 0.5rem center !important;
    padding-right: 0.75rem !important;
    padding-left: 1.75rem !important;
  }
</style>

<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 select = root.querySelector("[data-lang-select]");
    var inputsRoot = root.querySelector("[data-inputs]");
    if (!inputsRoot || !select) return;

    // First, hide all wrappers
    inputsRoot.querySelectorAll('[data-input-wrapper]').forEach(function (w) { 
      w.classList.add("hidden"); 
    });

    var selectedCode = select.value;
    var wrapper = inputsRoot.querySelector('[data-input-wrapper][data-lang-code="' + selectedCode + '"]');
    if (wrapper) {
      wrapper.classList.remove("hidden");
    }

    select.addEventListener("change", function () {
      var code = select.value;
      var wrapper = inputsRoot.querySelector('[data-input-wrapper][data-lang-code="' + code + '"]');
      if (!wrapper) return;

      inputsRoot.querySelectorAll('[data-input-wrapper]').forEach(function (w) { 
        w.classList.add("hidden"); 
      });

      wrapper.classList.remove("hidden");

      var input = wrapper.querySelector('input[type="text"]');
      if (input) { 
        setTimeout(function(){ input.focus(); }, 50); 
      }
    });

    var hidden = root.querySelector('input[type="hidden"][name="' + fieldName + '"]');
    
    function serialize() {
      if (!hidden) return;
      var result = [];
      inputsRoot.querySelectorAll('[data-input-wrapper]').forEach(function (w) {
        var code = w.getAttribute('data-lang-code');
        var parts = [];
        w.querySelectorAll('input[type="text"]').forEach(function (inp) {
          if (inp.value && inp.value.trim() !== '') {
            parts.push(inp.value.trim());
          }
        });
        
        var option = select.querySelector('option[value="' + code + '"]');
        var baseText = code.toUpperCase();
        
        if (parts.length > 0) {
          result.push({ language_code: code, title: parts });
          if (option) option.textContent = baseText + ' ✓';
        } else {
          if (option) option.textContent = baseText;
        }
      });
      try {
        hidden.value = JSON.stringify(result);
      } catch (e) {
        console.error('JSON stringify error:', e);
      }
    }

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

    inputsRoot.querySelectorAll('input[type="text"]').forEach(bindInputEvents);

    inputsRoot.querySelectorAll('[data-add-part]').forEach(function (addBtn) {
      addBtn.addEventListener('click', function () {
        var wrapper = addBtn.closest('[data-input-wrapper]');
        var container = wrapper.querySelector('[data-parts-container]');
        if (!container) return;

        var row = document.createElement('div');
        row.className = 'flex items-center gap-2 mt-2';
        row.setAttribute('data-part-row', '');
        
        var input = document.createElement('input');
        input.type = 'text';
        input.placeholder = 'Address part (e.g. Book 1, Chapter 9)';
        input.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';
        
        bindInputEvents(input);

        var delBtn = document.createElement('button');
        delBtn.type = 'button';
        delBtn.className = 'remove-part-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 part';
        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(input);
        row.appendChild(delBtn);
        container.appendChild(row);

        input.focus();
        serialize();
      });
    });

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

  function initializeWidgets() {
    document.querySelectorAll('[data-multilang-address]').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-multilang-address]').forEach(init);
    }
  });
})();
</script>