import $ from 'jquery';
import renderer from '../base/renderer';
import TooltipUI from './ui/TooltipUI';
import DropdownUI from './ui/DropdownUI';
import ModalUI from './ui/ModalUI';

const editor = renderer.create('<div class="note-editor note-frame"/>');
const toolbar = renderer.create('<div class="note-toolbar" role="toolbar"/>');
const editingArea = renderer.create('<div class="note-editing-area"/>');
const codable = renderer.create('<textarea class="note-codable" aria-multiline="true"/>');
const editable = renderer.create('<div class="note-editable" contentEditable="true" role="textbox" aria-multiline="true"/>');
const statusbar = renderer.create([
  '<output class="note-status-output" role="status" aria-live="polite"/>',
  '<div class="note-statusbar" role="status">',
    '<div class="note-resizebar" aria-label="resize">',
      '<div class="note-icon-bar"/>',
      '<div class="note-icon-bar"/>',
      '<div class="note-icon-bar"/>',
    '</div>',
  '</div>',
].join(''));

const airEditor = renderer.create('<div class="note-editor note-airframe"/>');
const airEditable = renderer.create([
  '<div class="note-editable" contentEditable="true" role="textbox" aria-multiline="true"/>',
  '<output class="note-status-output" role="status" aria-live="polite"/>',
].join(''));

const buttonGroup = renderer.create('<div class="note-btn-group">');
const button = renderer.create('<button type="button" class="note-btn" tabindex="-1">', function($node, options) {
  // set button type
  if (options && options.tooltip) {
    $node.attr({
      'aria-label': options.tooltip,
    });
    $node.data('_lite_tooltip', new TooltipUI($node, {
      title: options.tooltip,
      container: options.container,
    })).on('click', (e) => {
      $(e.currentTarget).data('_lite_tooltip').hide();
    });
  }
  if (options.contents) {
    $node.html(options.contents);
  }

  if (options && options.data && options.data.toggle === 'dropdown') {
    $node.data('_lite_dropdown', new DropdownUI($node, {
      container: options.container,
    }));
  }
});

const dropdown = renderer.create('<div class="note-dropdown-menu" role="list">', function($node, options) {
  const markup = Array.isArray(options.items) ? options.items.map(function(item) {
    const value = (typeof item === 'string') ? item : (item.value || '');
    const content = options.template ? options.template(item) : item;
    const $temp = $('<a class="note-dropdown-item" href="#" data-value="' + value + '" role="listitem" aria-label="' + value + '"></a>');

    $temp.html(content).data('item', item);

    return $temp;
  }) : options.items;

  $node.html(markup).attr({ 'aria-label': options.title });

  $node.on('click', '> .note-dropdown-item', function(e) {
    const $a = $(this);

    const item = $a.data('item');
    const value = $a.data('value');

    if (item.click) {
      item.click($a);
    } else if (options.itemClick) {
      options.itemClick(e, item, value);
    }
  });
});

const dropdownCheck = renderer.create('<div class="note-dropdown-menu note-check" role="list">', function($node, options) {
  const markup = Array.isArray(options.items) ? options.items.map(function(item) {
    const value = (typeof item === 'string') ? item : (item.value || '');
    const content = options.template ? options.template(item) : item;

    const $temp = $('<a class="note-dropdown-item" href="#" data-value="' + value + '" role="listitem" aria-label="' + item + '"></a>');
    $temp.html([icon(options.checkClassName), ' ', content]).data('item', item);
    return $temp;
  }) : options.items;

  $node.html(markup).attr({ 'aria-label': options.title });

  $node.on('click', '> .note-dropdown-item', function(e) {
    const $a = $(this);

    const item = $a.data('item');
    const value = $a.data('value');

    if (item.click) {
      item.click($a);
    } else if (options.itemClick) {
      options.itemClick(e, item, value);
    }
  });
});

const dropdownButtonContents = function(contents, options) {
  return contents + ' ' + icon(options.icons.caret, 'span');
};

const dropdownButton = function(opt, callback) {
  return buttonGroup([
    button({
      className: 'dropdown-toggle',
      contents: opt.title + ' ' + icon('note-icon-caret'),
      tooltip: opt.tooltip,
      data: {
        toggle: 'dropdown',
      },
    }),
    dropdown({
      className: opt.className,
      items: opt.items,
      template: opt.template,
      itemClick: opt.itemClick,
    }),
  ], { callback: callback }).render();
};

const dropdownCheckButton = function(opt, callback) {
  return buttonGroup([
    button({
      className: 'dropdown-toggle',
      contents: opt.title + ' ' + icon('note-icon-caret'),
      tooltip: opt.tooltip,
      data: {
        toggle: 'dropdown',
      },
    }),
    dropdownCheck({
      className: opt.className,
      checkClassName: opt.checkClassName,
      items: opt.items,
      template: opt.template,
      itemClick: opt.itemClick,
    }),
  ], { callback: callback }).render();
};

const paragraphDropdownButton = function(opt) {
  return buttonGroup([
    button({
      className: 'dropdown-toggle',
      contents: opt.title + ' ' + icon('note-icon-caret'),
      tooltip: opt.tooltip,
      data: {
        toggle: 'dropdown',
      },
    }),
    dropdown([
      buttonGroup({
        className: 'note-align',
        children: opt.items[0],
      }),
      buttonGroup({
        className: 'note-list',
        children: opt.items[1],
      }),
    ]),
  ]).render();
};

const tableMoveHandler = function(event, col, row) {
  const PX_PER_EM = 18;
  const $picker = $(event.target.parentNode); // target is mousecatcher
  const $dimensionDisplay = $picker.next();
  const $catcher = $picker.find('.note-dimension-picker-mousecatcher');
  const $highlighted = $picker.find('.note-dimension-picker-highlighted');
  const $unhighlighted = $picker.find('.note-dimension-picker-unhighlighted');

  let posOffset;
  // HTML5 with jQuery - e.offsetX is undefined in Firefox
  if (event.offsetX === undefined) {
    const posCatcher = $(event.target).offset();
    posOffset = {
      x: event.pageX - posCatcher.left,
      y: event.pageY - posCatcher.top,
    };
  } else {
    posOffset = {
      x: event.offsetX,
      y: event.offsetY,
    };
  }

  const dim = {
    c: Math.ceil(posOffset.x / PX_PER_EM) || 1,
    r: Math.ceil(posOffset.y / PX_PER_EM) || 1,
  };

  $highlighted.css({ width: dim.c + 'em', height: dim.r + 'em' });
  $catcher.data('value', dim.c + 'x' + dim.r);

  if (dim.c > 3 && dim.c < col) {
    $unhighlighted.css({ width: dim.c + 1 + 'em' });
  }

  if (dim.r > 3 && dim.r < row) {
    $unhighlighted.css({ height: dim.r + 1 + 'em' });
  }

  $dimensionDisplay.html(dim.c + ' x ' + dim.r);
};

const tableDropdownButton = function(opt) {
  return buttonGroup([
    button({
      className: 'dropdown-toggle',
      contents: opt.title + ' ' + icon('note-icon-caret'),
      tooltip: opt.tooltip,
      data: {
        toggle: 'dropdown',
      },
    }),
    dropdown({
      className: 'note-table',
      items: [
        '<div class="note-dimension-picker">',
          '<div class="note-dimension-picker-mousecatcher" data-event="insertTable" data-value="1x1"/>',
          '<div class="note-dimension-picker-highlighted"/>',
          '<div class="note-dimension-picker-unhighlighted"/>',
        '</div>',
        '<div class="note-dimension-display">1 x 1</div>',
      ].join(''),
    }),
  ], {
    callback: function($node) {
      const $catcher = $node.find('.note-dimension-picker-mousecatcher');
      $catcher.css({
        width: opt.col + 'em',
        height: opt.row + 'em',
      })
        .mousedown(opt.itemClick)
        .mousemove(function(e) {
          tableMoveHandler(e, opt.col, opt.row);
        });
    },
  }).render();
};

const palette = renderer.create('<div class="note-color-palette"/>', function($node, options) {
  const contents = [];
  for (let row = 0, rowSize = options.colors.length; row < rowSize; row++) {
    const eventName = options.eventName;
    const colors = options.colors[row];
    const colorsName = options.colorsName[row];
    const buttons = [];
    for (let col = 0, colSize = colors.length; col < colSize; col++) {
      const color = colors[col];
      const colorName = colorsName[col];
      buttons.push([
        '<button type="button" class="note-btn note-color-btn"',
        'style="background-color:', color, '" ',
        'data-event="', eventName, '" ',
        'data-value="', color, '" ',
        'data-title="', colorName, '" ',
        'aria-label="', colorName, '" ',
        'data-toggle="button" tabindex="-1"></button>',
      ].join(''));
    }
    contents.push('<div class="note-color-row">' + buttons.join('') + '</div>');
  }
  $node.html(contents.join(''));

  $node.find('.note-color-btn').each(function() {
    $(this).data('_lite_tooltip', new TooltipUI($(this), {
      container: options.container,
    }));
  });
});

const colorDropdownButton = function(opt, type) {
  return buttonGroup({
    className: 'note-color',
    children: [
      button({
        className: 'note-current-color-button',
        contents: opt.title,
        tooltip: opt.lang.color.recent,
        click: opt.currentClick,
        callback: function($button) {
          const $recentColor = $button.find('.note-recent-color');

          if (type !== 'foreColor') {
            $recentColor.css('background-color', '#FFFF00');
            $button.attr('data-backColor', '#FFFF00');
          }
        },
      }),
      button({
        className: 'dropdown-toggle',
        contents: icon('note-icon-caret'),
        tooltip: opt.lang.color.more,
        data: {
          toggle: 'dropdown',
        },
      }),
      dropdown({
        items: [
          '<div>',
            '<div class="note-btn-group btn-background-color">',
              '<div class="note-palette-title">' + opt.lang.color.background + '</div>',
            '<div>',
            '<button type="button" class="note-color-reset note-btn note-btn-block" data-event="backColor" data-value="transparent">',
              opt.lang.color.transparent,
            '</button>',
          '</div>',
          '<div class="note-holder" data-event="backColor"/>',
            '<div class="btn-sm">',
              '<input type="color" id="html5bcp" class="note-btn btn-default" value="#21104A" style="width:100%;" data-value="cp">',
              '<button type="button" class="note-color-reset btn" data-event="backColor" data-value="cpbackColor">',
                opt.lang.color.cpSelect,
              '</button>',
            '</div>',
          '</div>',
          '<div class="note-btn-group btn-foreground-color">',
            '<div class="note-palette-title">' + opt.lang.color.foreground + '</div>',
            '<div>',
              '<button type="button" class="note-color-reset note-btn note-btn-block" data-event="removeFormat" data-value="foreColor">',
                opt.lang.color.resetToDefault,
              '</button>',
            '</div>',
            '<div class="note-holder" data-event="foreColor"/>',
              '<div class="btn-sm">',
                '<input type="color" id="html5fcp" class="note-btn btn-default" value="#21104A" style="width:100%;" data-value="cp">',
                '<button type="button" class="note-color-reset btn" data-event="foreColor" data-value="cpforeColor">',
                  opt.lang.color.cpSelect,
                '</button>',
              '</div>',
            '</div>',
          '</div>',
        ].join(''),
        callback: function($dropdown) {
          $dropdown.find('.note-holder').each(function() {
            const $holder = $(this);
            $holder.append(palette({
              colors: opt.colors,
              eventName: $holder.data('event'),
            }).render());
          });

          if (type === 'fore') {
            $dropdown.find('.btn-background-color').hide();
            $dropdown.css({ 'min-width': '210px' });
          } else if (type === 'back') {
            $dropdown.find('.btn-foreground-color').hide();
            $dropdown.css({ 'min-width': '210px' });
          }
        },
        click: function(event) {
          const $button = $(event.target);
          const eventName = $button.data('event');
          let value = $button.data('value');
          const foreinput = document.getElementById('html5fcp').value;
          const backinput = document.getElementById('html5bcp').value;
          if (value === 'cp') {
            event.stopPropagation();
          } else if (value === 'cpbackColor') {
            value = backinput;
          } else if (value === 'cpforeColor') {
            value = foreinput;
          }

          if (eventName && value) {
            const key = eventName === 'backColor' ? 'background-color' : 'color';
            const $color = $button.closest('.note-color').find('.note-recent-color');
            const $currentButton = $button.closest('.note-color').find('.note-current-color-button');

            $color.css(key, value);
            $currentButton.attr('data-' + eventName, value);

            if (type === 'fore') {
              opt.itemClick('foreColor', value);
            } else if (type === 'back') {
              opt.itemClick('backColor', value);
            } else {
              opt.itemClick(eventName, value);
            }
          }
        },
      }),
    ],
  }).render();
};

const dialog = renderer.create('<div class="note-modal" aria-hidden="false" tabindex="-1" role="dialog"/>', function($node, options) {
  if (options.fade) {
    $node.addClass('fade');
  }
  $node.attr({
    'aria-label': options.title,
  });
  $node.html([
    '<div class="note-modal-content">',
      (options.title ? '<div class="note-modal-header"><button type="button" class="close" aria-label="Close" aria-hidden="true"><i class="note-icon-close"></i></button><h4 class="note-modal-title">' + options.title + '</h4></div>' : ''),
      '<div class="note-modal-body">' + options.body + '</div>',
      (options.footer ? '<div class="note-modal-footer">' + options.footer + '</div>' : ''),
    '</div>',
  ].join(''));

  $node.data('modal', new ModalUI($node, options));
});

const videoDialog = function(opt) {
  const body = '<div class="note-form-group">' +
    '<label for="note-dialog-video-url-' + opt.id + '" class="note-form-label">' + opt.lang.video.url + ' <small class="text-muted">' + opt.lang.video.providers + '</small></label>' +
    '<input id="note-dialog-video-url-' + opt.id + '" class="note-video-url note-input" type="text"/>' +
  '</div>';
  const footer = [
    '<button type="button" href="#" class="note-btn note-btn-primary note-video-btn disabled" disabled>',
      opt.lang.video.insert,
    '</button>',
  ].join('');

  return dialog({
    title: opt.lang.video.insert,
    fade: opt.fade,
    body: body,
    footer: footer,
  }).render();
};

const imageDialog = function(opt) {
  const body = '<div class="note-form-group note-group-select-from-files">' +
    '<label for="note-dialog-image-file-' + opt.id + '" class="note-form-label">' + opt.lang.image.selectFromFiles + '</label>' +
    '<input id="note-dialog-image-file-' + opt.id + '" class="note-note-image-input note-input" type="file" name="files" accept="image/*" multiple="multiple"/>' +
    opt.imageLimitation +
  '</div>' +
  '<div class="note-form-group">' +
    '<label for="note-dialog-image-url-' + opt.id + '" class="note-form-label">' + opt.lang.image.url + '</label>' +
    '<input id="note-dialog-image-url-' + opt.id + '" class="note-image-url note-input" type="text"/>' +
  '</div>';
  const footer = [
    '<button href="#" type="button" class="note-btn note-btn-primary note-btn-large note-image-btn disabled" disabled>',
      opt.lang.image.insert,
    '</button>',
  ].join('');

  return dialog({
    title: opt.lang.image.insert,
    fade: opt.fade,
    body: body,
    footer: footer,
  }).render();
};

const linkDialog = function(opt) {
  const body = '<div class="note-form-group">' +
    '<label for="note-dialog-link-txt-' + opt.id + '" class="note-form-label">' + opt.lang.link.textToDisplay + '</label>' +
    '<input id="note-dialog-link-txt-' + opt.id + '" class="note-link-text note-input" type="text"/>' +
  '</div>' +
  '<div class="note-form-group">' +
    '<label for="note-dialog-link-url-' + opt.id + '" class="note-form-label">' + opt.lang.link.url + '</label>' +
    '<input id="note-dialog-link-url-' + opt.id + '" class="note-link-url note-input" type="text" value="http://"/>' +
  '</div>' +
  (!opt.disableLinkTarget ? '<div class="checkbox"><label for="note-dialog-link-nw-' + opt.id + '"><input id="note-dialog-link-nw-' + opt.id + '" type="checkbox" checked> ' + opt.lang.link.openInNewWindow + '</label></div>' : '') +
  '<div class="checkbox"><label for="note-dialog-link-up-' + opt.id + '"><input id="note-dialog-link-up-' + opt.id + '" type="checkbox" checked> ' + opt.lang.link.useProtocol + '</label></div>';
  const footer = [
    '<button href="#" type="button" class="note-btn note-btn-primary note-link-btn disabled" disabled>',
      opt.lang.link.insert,
    '</button>',
  ].join('');

  return dialog({
    className: 'link-dialog',
    title: opt.lang.link.insert,
    fade: opt.fade,
    body: body,
    footer: footer,
  }).render();
};

const popover = renderer.create([
  '<div class="note-popover bottom">',
    '<div class="note-popover-arrow"/>',
    '<div class="popover-content note-children-container"/>',
  '</div>',
].join(''), function($node, options) {
  const direction = typeof options.direction !== 'undefined' ? options.direction : 'bottom';

  $node.addClass(direction).hide();

  if (options.hideArrow) {
    $node.find('.note-popover-arrow').hide();
  }
});

const checkbox = renderer.create('<div class="checkbox"></div>', function($node, options) {
  $node.html([
    '<label' + (options.id ? ' for="note-' + options.id + '"' : '') + '>',
      '<input role="checkbox" type="checkbox"' + (options.id ? ' id="note-' + options.id + '"' : ''),
      (options.checked ? ' checked' : ''),
      ' aria-checked="' + (options.checked ? 'true' : 'false') + '"/>',
      (options.text ? options.text : ''),
    '</label>',
  ].join(''));
});

const icon = function(iconClassName, tagName) {
  tagName = tagName || 'i';
  return '<' + tagName + ' class="' + iconClassName + '"/>';
};

const ui = function(editorOptions) {
  return {
    editor: editor,
    toolbar: toolbar,
    editingArea: editingArea,
    codable: codable,
    editable: editable,
    statusbar: statusbar,
    airEditor: airEditor,
    airEditable: airEditable,
    buttonGroup: buttonGroup,
    button: button,
    dropdown: dropdown,
    dropdownCheck: dropdownCheck,
    dropdownButton: dropdownButton,
    dropdownButtonContents: dropdownButtonContents,
    dropdownCheckButton: dropdownCheckButton,
    paragraphDropdownButton: paragraphDropdownButton,
    tableDropdownButton: tableDropdownButton,
    colorDropdownButton: colorDropdownButton,
    palette: palette,
    dialog: dialog,
    videoDialog: videoDialog,
    imageDialog: imageDialog,
    linkDialog: linkDialog,
    popover: popover,
    checkbox: checkbox,
    icon: icon,
    options: editorOptions,

    toggleBtn: function($btn, isEnable) {
      $btn.toggleClass('disabled', !isEnable);
      $btn.attr('disabled', !isEnable);
    },

    toggleBtnActive: function($btn, isActive) {
      $btn.toggleClass('active', isActive);
    },

    check: function($dom, value) {
      $dom.find('.checked').removeClass('checked');
      $dom.find('[data-value="' + value + '"]').addClass('checked');
    },

    onDialogShown: function($dialog, handler) {
      $dialog.one('note.modal.show', handler);
    },

    onDialogHidden: function($dialog, handler) {
      $dialog.one('note.modal.hide', handler);
    },

    showDialog: function($dialog) {
      $dialog.data('modal').show();
    },

    hideDialog: function($dialog) {
      $dialog.data('modal').hide();
    },

    /**
     * get popover content area
     *
     * @param $popover
     * @returns {*}
     */
    getPopoverContent: function($popover) {
      return $popover.find('.note-popover-content');
    },

    /**
     * get dialog's body area
     *
     * @param $dialog
     * @returns {*}
     */
    getDialogBody: function($dialog) {
      return $dialog.find('.note-modal-body');
    },

    createLayout: function($note) {
      const $editor = (editorOptions.airMode ? airEditor([
        editingArea([
          codable(),
          airEditable(),
        ]),
      ]) : (editorOptions.toolbarPosition === 'bottom'
        ? editor([
          editingArea([
            codable(),
            editable(),
          ]),
          toolbar(),
          statusbar(),
        ])
        : editor([
          toolbar(),
          editingArea([
            codable(),
            editable(),
          ]),
          statusbar(),
        ])
      )).render();

      $editor.insertAfter($note);

      return {
        note: $note,
        editor: $editor,
        toolbar: $editor.find('.note-toolbar'),
        editingArea: $editor.find('.note-editing-area'),
        editable: $editor.find('.note-editable'),
        codable: $editor.find('.note-codable'),
        statusbar: $editor.find('.note-statusbar'),
      };
    },

    removeLayout: function($note, layoutInfo) {
      $note.html(layoutInfo.editable.html());
      layoutInfo.editor.remove();
      $note.off('summernote'); // remove summernote custom event
      $note.show();
    },
  };
};

export default ui;
