/* global I18n dropdownSelector */
/* eslint-disable no-use-before-define */

// Bind ajax for editing due dates
function initDueDatePicker() {
  function updateDueDate(val) {
    var updateUrl = $('.due-date-container').data('update-url');
    $.ajax({
      url: updateUrl,
      type: 'PATCH',
      dataType: 'json',
      data: { my_module: { due_date: val } },
      success: function(result) {
        $('.due-date-container').html($(result.module_header_due_date_label));
        initDueDatePicker();
      }
    });
  }

  $('#calendar-due-date').on('dp.change', function() {
    updateDueDate($('#calendar-due-date').val());
  });

  $('.flex-block.date-block .clear-date').off('click').on('click', function() {
    updateDueDate(null);
  });
}


// Bind ajax for editing tags
function bindEditTagsAjax() {
  var manageTagsModal = null;
  var manageTagsModalBody = null;

  // Initialize reloading of manage tags modal content after posting new
  // tag.
  function initAddTagForm() {
    manageTagsModalBody.find('.add-tag-form')
      .submit(function() {
        var selectOptions = manageTagsModalBody.find('#new_my_module_tag .dropdown-menu li').length;
        if (selectOptions === 0 && this.id === 'new_my_module_tag') return false;
        return true;
      })
      .on('ajax:success', function(e, data) {
        var newTag;
        initTagsModalBody(data);
        newTag = $('#manage-module-tags-modal .list-group-item').last();
        dropdownSelector.addValue('#module-tags-selector', {
          value: newTag.data('tag-id'),
          label: newTag.data('name'),
          params: {
            color: newTag.data('color')
          }
        }, true);
      });
  }

  // Initialize edit tag & remove tag functionality from my_module links.
  function initTagRowLinks() {
    manageTagsModalBody.find('.edit-tag-link')
      .on('click', function() {
        var $this = $(this);
        var li = $this.parents('li.list-group-item');
        var editDiv = $(li.find('div.tag-edit'));

        // Revert all rows to their original states
        manageTagsModalBody.find('li.list-group-item').each(function() {
          var li2 = $(this);
          li2.css('background-color', li2.data('color'));
          li2.find('.edit-tag-form').clearFormErrors();
          li2.find('input[type=text]').val(li2.data('name'));
        });

        // Hide all other edit divs, show all show divs
        manageTagsModalBody.find('div.tag-edit').hide();
        manageTagsModalBody.find('div.tag-show').show();

        editDiv.find('input[type=text]').val(li.data('name'));
        editDiv.find('.edit-tag-color').colorselector('setColor', li.data('color'));

        li.find('div.tag-show').hide();
        editDiv.show();
      });
    manageTagsModalBody.find('div.tag-edit .dropdown-colorselector > .dropdown-menu li a')
      .on('click', function() {
        // Change background of the <li>
        var $this = $(this);
        var li = $this.parents('li.list-group-item');
        li.css('background-color', $this.data('value'));
      });
    manageTagsModalBody.find('.remove-tag-link')
      .on('ajax:success', function(e, data) {
        dropdownSelector.removeValue('#module-tags-selector', this.dataset.tagId, '', true);
        initTagsModalBody(data);
      });
    manageTagsModalBody.find('.delete-tag-form')
      .on('ajax:success', function(e, data) {
        dropdownSelector.removeValue('#module-tags-selector', this.dataset.tagId, '', true);
        initTagsModalBody(data);
      });
    manageTagsModalBody.find('.edit-tag-form')
      .on('ajax:success', function(e, data) {
        var newTag;
        initTagsModalBody(data);
        dropdownSelector.removeValue('#module-tags-selector', this.dataset.tagId, '', true);
        newTag = $('#manage-module-tags-modal .list-group-item[data-tag-id=' + this.dataset.tagId + ']');
        dropdownSelector.addValue('#module-tags-selector', {
          value: newTag.data('tag-id'),
          label: newTag.data('name'),
          params: {
            color: newTag.data('color')
          }
        }, true);
      })
      .on('ajax:error', function(e, data) {
        $(this).renderFormErrors('tag', data.responseJSON);
      });
    manageTagsModalBody.find('.cancel-tag-link')
      .on('click', function() {
        var $this = $(this);
        var li = $this.parents('li.list-group-item');

        li.css('background-color', li.data('color'));
        li.find('.edit-tag-form').clearFormErrors();

        li.find('div.tag-edit').hide();
        li.find('div.tag-show').show();
      });
  }

  // Initialize ajax listeners and elements style on modal body. This
  // function must be called when modal body is changed.
  function initTagsModalBody(data) {
    manageTagsModalBody.html(data.html);
    manageTagsModalBody.find('.selectpicker').selectpicker();
    initAddTagForm();
    initTagRowLinks();
  }

  manageTagsModal = $('#manage-module-tags-modal');
  manageTagsModalBody = manageTagsModal.find('.modal-body');

  // Reload tags HTML element when modal is closed
  manageTagsModal.on('hide.bs.modal', function() {
    var tagsEl = $('#module-tags');

    // Load HTML
    $.ajax({
      url: tagsEl.attr('data-module-tags-url'),
      type: 'GET',
      dataType: 'json',
      success: function(data) {
        var newOptions = $(data.html_module_header).find('option');
        $('#module-tags-selector').find('option').remove();
        $(newOptions).appendTo('#module-tags-selector').change();
      },
      error: function() {
        // TODO
      }
    });
  });

  // Remove modal content when modal window is closed.
  manageTagsModal.on('hidden.bs.modal', function() {
    manageTagsModalBody.html('');
  });
  // initialize my_module tab remote loading
  $('.edit-tags-link')
    .on('ajax:before', function() {
      manageTagsModal.modal('show');
    })
    .on('ajax:success', function(e, data) {
      $('#manage-module-tags-modal-module').text(data.my_module.name);
      initTagsModalBody(data);
    });
}

// Sets callback for completing/uncompleting task
function applyTaskCompletedCallBack() {
  $("[data-action='complete-task'], [data-action='uncomplete-task']")
    .on('click', function() {
      var button = $(this);
      $.ajax({
        url: button.data('link-url'),
        type: 'POST',
        dataType: 'json',
        success: function(data) {
          if (data.completed === true) {
            button.attr('data-action', 'uncomplete-task');
            button.find('.btn')
              .removeClass('btn-primary').addClass('btn-default');
          } else {
            button.attr('data-action', 'complete-task');
            button.find('.btn')
              .removeClass('btn-default').addClass('btn-primary');
          }
          $('.due-date-container').html(data.module_header_due_date_label);
          initDueDatePicker();
          $('.task-state-label').html(data.module_state_label);
          button.find('button').replaceWith(data.new_btn);
        },
        error: function() {
        }
      });
    });
}

function initTagsSelector() {
  var myModuleTagsSelector = '#module-tags-selector';

  dropdownSelector.init(myModuleTagsSelector, {
    closeOnSelect: true,
    tagClass: 'my-module-white-tags',
    tagStyle: (data) => {
      return `background: ${data.params.color}`;
    },
    customDropdownIcon: () => {
      return '';
    },
    optionLabel: (data) => {
      if (data.value > 0) {
        return `<span class="my-module-tags-color" style="background:${data.params.color}"></span>
                ${data.label}`;
      }
      return `<span class="my-module-tags-color"></span>
              ${data.label + ' '}
              <span class="my-module-tags-create-new"> (${I18n.t('my_modules.module_header.create_new_tag')})</span>`;
    },
    onOpen: function() {
      $('.select-container .edit-button-container').removeClass('hidden');
    },
    onClose: function() {
      $('.select-container .edit-button-container').addClass('hidden');
    },
    onSelect: function() {
      var selectElement = $(myModuleTagsSelector);
      var lastTag = selectElement.next().find('.ds-tags').last();
      var lastTagId = lastTag.find('.tag-label').data('ds-tag-id');
      var newTag;

      if (lastTagId > 0) {
        newTag = { my_module_tag: { tag_id: lastTagId } };
        $.post(selectElement.data('update-module-tags-url'), newTag)
          .fail(function() {
            dropdownSelector.removeValue(myModuleTagsSelector, lastTagId, '', true);
          });
      } else {
        newTag = {
          tag: {
            name: lastTag.find('.tag-label').html(),
            project_id: selectElement.data('project-id'),
            color: null
          },
          my_module_id: selectElement.data('module-id'),
          simple_creation: true
        };
        $.post(selectElement.data('tags-create-url'), newTag, function(result) {
          dropdownSelector.removeValue(myModuleTagsSelector, 0, '', true);
          dropdownSelector.addValue(myModuleTagsSelector, {
            value: result.tag.id,
            label: result.tag.name,
            params: {
              color: result.tag.color
            }
          }, true);
        });
      }
    },
    onUnSelect: (id) => {
      $.post(`${$(myModuleTagsSelector).data('update-module-tags-url')}/${id}/destroy_by_tag_id`);
      dropdownSelector.closeDropdown(myModuleTagsSelector);
    }
  }).getContainer(myModuleTagsSelector).addClass('my-module-tags-container');
}

applyTaskCompletedCallBack();
initTagsSelector();
bindEditTagsAjax();
initDueDatePicker();