$(document).on('click', '.codemirror-toolbar .fa-undo-alt', function(){
  window.myCodeMirror.undo();
});
$(document).on('click', '.codemirror-toolbar .fa-redo-alt', function(){
  window.myCodeMirror.redo();
});
$(document).on('click', '.codemirror-toolbar .fa-file-image', function(){
  $('.modal-image').modal('show');
});
$(document).on('click', '.modal-image img', function(){
  let img_src = '<img src="' + $(this).attr('src') + '" alt="<%= EscapeUtils.escape_html t.default_alt_img %>" title="<%= EscapeUtils.escape_html t.default_title_img %>" />';
  if(window.mode_markdown){
    img_src = '![<%= EscapeUtils.escape_html t.default_alt_img %>](' + $(this).attr('src') + ')';
  }
  window.myCodeMirror.replaceSelection(img_src);
  $('.modal-image').modal('hide');
});
$(document).on('click', '.codemirror-toolbar .fa-heading', function(){
  let obj_cursor = window.myCodeMirror.getCursor();

  let heading_number = 0;
  if($(this).hasClass('cmt-heading-1')){
    heading_number = 1;
  }else if($(this).hasClass('cmt-heading-2')){
    heading_number = 2;
  }else if($(this).hasClass('cmt-heading-3')){
    heading_number = 3;
  }else if($(this).hasClass('cmt-heading-4')){
    heading_number = 4;
  }else if($(this).hasClass('cmt-heading-5')){
    heading_number = 5;
  }

  let begin_str = '<h' + heading_number + '>';
  let end_str = '</h' + heading_number + '>';
  if(window.mode_markdown){
    begin_str = '#';
    for (let i = 1; i < heading_number; i++) {
      begin_str = begin_str + '#';
    }
    begin_str = begin_str + ' ';
    end_str = '';
  }
  window.myCodeMirror.replaceSelection(begin_str + window.myCodeMirror.getSelection() + end_str);
  if(!window.myCodeMirror.somethingSelected()){
    window.myCodeMirror.setCursor({ line: obj_cursor.line, ch: obj_cursor.ch + begin_str.length });
  }
  window.myCodeMirror.focus();
});
$(document).on('click', '.codemirror-toolbar .cmt-replace', function(){
  let begin_str = '';
  let end_str = '';

  if($(this).hasClass('fa-underline')){
  begin_str = '<u>';
    end_str = '</u>';
    /*if(window.mode_markdown){
      begin_str = '';
      end_str = '';
    }*/
  }else if($(this).hasClass('fa-bold')){
  begin_str = '<b>';
    end_str = '</b>';
    if(window.mode_markdown){
      begin_str = '**';
      end_str = '**';
    }
  }else if($(this).hasClass('fa-italic')){
  begin_str = '<i>';
    end_str = '</i>';
    if(window.mode_markdown){
      begin_str = '*';
      end_str = '*';
    }
  }else if($(this).hasClass('fa-strikethrough')){
  begin_str = '<s>';
    end_str = '</s>';
    if(window.mode_markdown){
      begin_str = '~~';
      end_str = '~~';
    }
  }else if($(this).hasClass('fa-link')){
  begin_str = '<a href="https://www.example.com/">';
    end_str = '</a>';
    if(window.mode_markdown){
      begin_str = '[';
      end_str = '](https://www.example.com/)';
    }
  }else if($(this).hasClass('fa-quote-left')){
  begin_str = '<blockquote>\n  <p>';
    end_str = '</p>\n</blockquote>';
    if(window.mode_markdown){
      begin_str = '>';
      end_str = '';
    }
  }else if($(this).hasClass('fa-list')){
  begin_str = '<ul>\n  <li>';
    end_str = '</li>\n</ul>';
    if(window.mode_markdown){
      begin_str = '- ';
      end_str = '';
    }
  }else if($(this).hasClass('fa-list-ol')){
    begin_str = '<ol>\n  <li>';
      end_str = '</li>\n</ol>';
      if(window.mode_markdown){
        begin_str = '1. ';
        end_str = '';
      }
  }else if($(this).hasClass('fa-code')){
    begin_str = '{% highlight ruby linenos %}\n';
    end_str = '{% endhighlight %}\n';
  }else if($(this).hasClass('fa-terminal')){
    begin_str = '<pre>\n';
    end_str = '\n</pre>';
    if(window.mode_markdown){
      begin_str = '```';
      end_str = '```';
    }
  }

  let obj_cursor = window.myCodeMirror.getCursor();
  window.myCodeMirror.replaceSelection(begin_str + window.myCodeMirror.getSelection() + end_str);
  if(!window.myCodeMirror.somethingSelected()){
    let moreline = (begin_str.split('\n').length > 1 ? begin_str.split('\n').length / 2 : 0);
    let morech = (moreline > 0 ? begin_str.split('\n')[begin_str.split('\n').length - 1].length : begin_str.length);
    window.myCodeMirror.setCursor({ line: obj_cursor.line + moreline, ch: obj_cursor.ch + morech });
  }
  window.myCodeMirror.focus();
});