function getAfterPadding(element,padding) {
  var next = $(element).get(0).nextSibling;
  if(!next) {
    padding = "";
  } else if(next.nodeType === 3) {
    if(next.data.match(/^(\t| )*\n(\t| )*\n/)) {
      padding = "";
    } else if(next.data.match(/^(\t| )*\n/) && padding.length > 1) {
      padding = "\n";
    }
  }
  return padding;
}

function getBeforePadding(element,padding) {
  var previous = $(element).get(0).previousSibling;
  if(!previous) {
    padding = "";
  } else if(previous.nodeType === 3) {
    if(previous.data.match(/\n(\t| )*\n(\t| )*$/)) {
      padding = "";
    } else if(previous.data.match(/\n(\t| )*$/) && padding.length > 1) {
      padding = "\n";
    }
  }
  return padding;
} 

function removeTralingWhiteSpace(element) {
  if(element && element.nodeType === 3) {
    element.data = element.data.replace(/\s+$/,'');
  }
}

function removeStartingWhiteSpace(element) {
  if(element && element.nodeType === 3) {
    element.data = element.data.replace(/^\s+/,'');
  }
}

function shouldSkip(element) {
  return $(element).get(0).attributes.length > 0;
}

function Html2Markdown(value) {
  var dom = $("<div id=\"root\"></div>");
  dom.append(value);
  
  dom.find("> hr").each(function() {
    if(!shouldSkip(this)) {
      $(this).replaceWith(getBeforePadding(this,"\n\n") + "---" + getAfterPadding(this,"\n\n"));
    }
  });
  
  dom.find("> p > em > strong").each(function() {
    $(this).replaceWith("**"+$(this).html()+"**"); 
  });
  
  dom.find("> p > em, > em, > ul > li > em").each(function() {
    if(!shouldSkip(this)) {
      $(this).replaceWith("_"+$(this).html()+"_"); 
    }
  });
  
  
  
  dom.find("> strong, > p > strong, > ul > li > strong").each(function() {
    $(this).replaceWith("**"+$(this).html()+"**"); 
  });
  
  dom.find("> p, blockquote > p").each(function() {
    if($(this).get(0).attributes.length === 0) {
      $(this).replaceWith(getBeforePadding(this,"\n\n")+$(this).html()+getAfterPadding(this,"\n\n"));
    }
  });
  
  dom.find("> ol, > ul").each(function() {
    if($(this).find('li li').length > 0) {
      return;
    }
    
    if(!shouldSkip(this)) {    
      
      $(this).contents().each(function() {
        if(this.nodeType === 3) {
          $(this).remove();
        }
      });
      
      var isOL = $(this).is("ol");
      
      $(this).find('li').each(function(index, value) {
        var listIndicator = isOL ? String(index+1) + "." : "-";
        removeTralingWhiteSpace($(this).get(0).previousSibling);
        $(this).replaceWith(getBeforePadding(this,"\n")+listIndicator+" "+$(this).html()+getAfterPadding(this,"\n"));
      });
      $(this).replaceWith(getBeforePadding(this,"\n\n") + $(this).html() + getAfterPadding(this,"\n\n"));
    }
  });
  
  dom.find('> blockquote').each(function() {
    if(!shouldSkip(this)) {  
      $(this).replaceWith("> "+$.trim($(this).html()).replace(/\n{2,20}/g,"\n\n").replace(/\n/g,'\n> ').replace(/> \n/g,">\n") + "\n\n");
    }
  });
  
  $.each(["h1",'h2','h3','h4','h5'],function(index,value) {
    
    var hashes = "";
    var i = 0;
    for(; i <= index;i++) {
      hashes += "#";
    }
    
    dom.find("> "+value).each(function() {
      
      // Remove any auto ids
      if($(this).attr("id") === $(this).html().toLowerCase().replace(/[^\w]+/g, '-')) {
        $(this).removeAttr("id");
      }
      
      if($(this).get(0).attributes.length === 0) {      
        $(this).find("> strong").each(function() {
          $(this).replaceWith("**"+$(this).html()+"**"); 
        });
      
        $(this).find("> em").each(function() {
          $(this).replaceWith("_"+$(this).html()+"_"); 
        });
      
        $(this).replaceWith(getBeforePadding(this,"\n\n")+hashes+" "+$.trim($(this).html()) + getAfterPadding(this,"\n\n")); 
      }
    });
  });
  
  dom.find("> img").each(function() {
    $(this).replaceWith($("<div></div>").append($(this).clone()).html() + "\n");
  });
  
  return $.trim(dom.html().replace(/^&gt;/mg,'>').replace(/^&lt;/mg,'<').replace(/\n{2,20}/g,"\n\n"));
}