/**
 * Helpers to create HTML elements used by Choices
 * Can be overridden by providing `callbackOnCreateTemplates` option
 * @typedef {import('../../types/index').Choices.Templates} Templates
 */

export const TEMPLATES = /** @type {Templates} */ ({
  containerOuter(
    { containerOuter },
    dir,
    isSelectElement,
    isSelectOneElement,
    searchEnabled,
    passedElementType,
  ) {
    const div = Object.assign(document.createElement('div'), {
      className: containerOuter,
    });

    div.dataset.type = passedElementType;

    if (dir) {
      div.dir = dir;
    }

    if (isSelectOneElement) {
      div.tabIndex = 0;
    }

    if (isSelectElement) {
      div.setAttribute('role', searchEnabled ? 'combobox' : 'listbox');
      if (searchEnabled) {
        div.setAttribute('aria-autocomplete', 'list');
      }
    }

    div.setAttribute('aria-haspopup', 'true');
    div.setAttribute('aria-expanded', 'false');

    return div;
  },

  containerInner({ containerInner }) {
    return Object.assign(document.createElement('div'), {
      className: containerInner,
    });
  },

  itemList({ list, listSingle, listItems }, isSelectOneElement) {
    return Object.assign(document.createElement('div'), {
      className: `${list} ${isSelectOneElement ? listSingle : listItems}`,
    });
  },

  placeholder({ placeholder }, value) {
    return Object.assign(document.createElement('div'), {
      className: placeholder,
      innerHTML: value,
    });
  },

  item(
    { item, button, highlightedState, itemSelectable, placeholder },
    {
      id,
      value,
      label,
      customProperties,
      active,
      disabled,
      highlighted,
      placeholder: isPlaceholder,
    },
    removeItemButton,
  ) {
    const div = Object.assign(document.createElement('div'), {
      className: item,
      innerHTML: label,
    });

    Object.assign(div.dataset, {
      item: '',
      id,
      value,
      customProperties,
    });

    if (active) {
      div.setAttribute('aria-selected', 'true');
    }

    if (disabled) {
      div.setAttribute('aria-disabled', 'true');
    }

    if (isPlaceholder) {
      div.classList.add(placeholder);
    }

    div.classList.add(highlighted ? highlightedState : itemSelectable);

    if (removeItemButton) {
      if (disabled) {
        div.classList.remove(itemSelectable);
      }
      div.dataset.deletable = '';
      /** @todo This MUST be localizable, not hardcoded! */
      const REMOVE_ITEM_TEXT = 'Remove item';
      const removeButton = Object.assign(document.createElement('button'), {
        type: 'button',
        className: button,
        innerHTML: REMOVE_ITEM_TEXT,
      });
      removeButton.setAttribute(
        'aria-label',
        `${REMOVE_ITEM_TEXT}: '${value}'`,
      );
      removeButton.dataset.button = '';
      div.appendChild(removeButton);
    }

    return div;
  },

  choiceList({ list }, isSelectOneElement) {
    const div = Object.assign(document.createElement('div'), {
      className: list,
    });

    if (!isSelectOneElement) {
      div.setAttribute('aria-multiselectable', 'true');
    }
    div.setAttribute('role', 'listbox');

    return div;
  },

  choiceGroup({ group, groupHeading, itemDisabled }, { id, value, disabled }) {
    const div = Object.assign(document.createElement('div'), {
      className: `${group} ${disabled ? itemDisabled : ''}`,
    });

    div.setAttribute('role', 'group');

    Object.assign(div.dataset, {
      group: '',
      id,
      value,
    });

    if (disabled) {
      div.setAttribute('aria-disabled', 'true');
    }

    div.appendChild(
      Object.assign(document.createElement('div'), {
        className: groupHeading,
        innerHTML: value,
      }),
    );

    return div;
  },

  choice(
    { item, itemChoice, itemSelectable, itemDisabled, placeholder },
    {
      id,
      value,
      label,
      groupId,
      elementId,
      disabled,
      placeholder: isPlaceholder,
    },
    selectText,
  ) {
    const div = Object.assign(document.createElement('div'), {
      id: elementId,
      innerHTML: label,
      className: `${item} ${itemChoice} ${
        disabled ? itemDisabled : itemSelectable
      } ${isPlaceholder ? placeholder : ''}`,
    });

    div.setAttribute('role', groupId > 0 ? 'treeitem' : 'option');

    Object.assign(div.dataset, {
      choice: '',
      id,
      value,
      selectText,
    });

    if (disabled) {
      div.dataset.choiceDisabled = '';
      div.setAttribute('aria-disabled', 'true');
    } else {
      div.dataset.choiceSelectable = '';
    }

    return div;
  },

  input({ input, inputCloned }, placeholderValue) {
    const inp = Object.assign(document.createElement('input'), {
      type: 'text',
      className: `${input} ${inputCloned}`,
      autocomplete: 'off',
      autocapitalize: 'off',
      spellcheck: false,
    });

    inp.setAttribute('role', 'textbox');
    inp.setAttribute('aria-autocomplete', 'list');
    inp.setAttribute('aria-label', placeholderValue);

    return inp;
  },

  dropdown({ list, listDropdown }) {
    const div = document.createElement('div');

    div.classList.add(list, listDropdown);
    div.setAttribute('aria-expanded', 'false');

    return div;
  },

  notice({ item, itemChoice, noResults, noChoices }, innerHTML, type = '') {
    const classes = [item, itemChoice];

    if (type === 'no-choices') {
      classes.push(noChoices);
    } else if (type === 'no-results') {
      classes.push(noResults);
    }

    return Object.assign(document.createElement('div'), {
      innerHTML,
      className: classes.join(' '),
    });
  },

  option({ label, value, customProperties, active, disabled }) {
    const opt = new Option(label, value, false, active);

    if (customProperties) {
      opt.dataset.customProperties = customProperties;
    }
    opt.disabled = disabled;

    return opt;
  },
});

export default TEMPLATES;