//{{{
// Blog macro
// v0.2
// 09th October 2007
// 
// Author: Craig Cook, craig [dot] cook [at] bt [dot] com
//
// Not quite sure how to do this at the moment
// ============================================
// Adapted: 2008-11-22 W. Hibma, http://whitehat-marketer.com/blog
// Change: Added the possibility to update a post.

//Need to add the following into the main TiddlyWiki://config.commands.publishBlog: {}, - FIXED
//and to the div 'ViewTemplate' in the 'toolbar' class add publishBlog - CHANGED:
// blogViewTemplate created, active when TaggedTemplateTweak plugin is installed
//Add the publishBlog option into TiddlyWiki

// set some default values for blog variables
if(!config.options.txtBlogID) config.options.txtBlogID = "your blog id";
if(!config.options.txtBlogUserName) config.options.txtBlogUserName = "your username";
if(!config.options.pasBlogPassWord) config.options.pasBlogPassWord = "password";

var _subject="";
var _method = "";
var _blogid = "";

config.commands.publishBlog = {};

merge(config.commands.publishBlog,{
	text: "publish",
	tooltip: "This will publish to you online blog"});

config.commands.publishBlog.handler = function(event,src,title) {
        var pubTiddler = store.getTiddler(title);
	var blog = new Blog();

	blog.setSubject(pubTiddler.title);
        _subject = pubTiddler.title;
	blog.setTags(pubTiddler.tags);

    var tiddlerElem = store.getTiddler(_subject);
    var theText = tiddlerElem.text;
    // Change the post
    if (theText.indexOf("[#")>0)
    {
        blog.method = "metaWeblog.editPost";
        var index=0;
        var index2=0;

        index = theText.indexOf("[#", index+1);
        index2 = theText.indexOf("#]", index+1);
        _blogid = theText.substring(index+2,index2);

        blog.blogid = _blogid;

        theText = theText.replace("[#"+ _blogid +"#]","");
    }
    // New post
    else
    {
        blog.method = "metaWeblog.newPost";
        blog.blogid = config.options.txtBlogID;  // get the full name of the blog, i.e. site.com
    }
    _method = blog.method;
    blog.setContent(theText);

    blog.publish();	
};

function Blog() {
    this.appkey = "0123456789ABCDEF";
    this.username = config.options.txtBlogUserName;
    this.password = config.options.pasBlogPassWord;
    this.blogid = config.options.txtBlogID;  //i.e. site.com
    this.content = "";
    this.subject = "";
    this.tags = "";

    this.blogURL = "http://"+config.options.txtBlogID+"/xmlrpc.php";   //This is for wordpress, will need to be changed for others
}

Blog.prototype.publish = function(){
	var xmlMsg = new XMLRPCMessage();
	xmlMsg.setMethod(this.method);
    xmlMsg.addStringXML(this.blogid);
    xmlMsg.addStringXML(this.username);
    xmlMsg.addStringXML(this.password);

    // Make real hyperlinks from the tiddly links,
    // [[Tiddly Link]] becomes <a href="/tiddly-link">Tiddly Link</a>
    var m = this.content.match(/\[\[.*?\]\]/g);
    if (m != null && m.length>=1)
    {
        for(var i=0;i<m.length;i++)
            {
                var link = m[i].replace("[[","").replace("]]","");
                var permalink = link.toLowerCase().replace(" ","-").replace(".","");
                var hyperlink = "<a href=\"/" + permalink + "\">" + link + "</a>";
                this.content = this.content.replace(m[i],hyperlink);
            }
    }

    xmlMsg.addItemXML("<struct><member><name>description</name><value>" + this.content.htmlEncode() + "</value></member><member><name>title</name><value>" + this.subject + "</value></member><member><name>categories</name><value><array><data>" + this.tags + "</data></array></value></member></struct>");
    xmlMsg.addBoolXML(true);
    
    var xmlText = xmlMsg.xml();
    this.makeAjaxCall(this.blogURL, xmlText);
};

Blog.prototype.makeAjaxCall = function(url, postdata) {

	// with callback
	var loginCallback = function(status,params,responseText,url,xhr) {

		if (status) {
			displayMessage("completed...");
alert(responseText);
			var theId = "";
			var tiddlerElem = store.getTiddler(_subject);
                        // change post
                        if (_method == "metaWeblog.editPost")
                        {
			    tiddlerElem.text.replace(/\[#.*?#\]/mg,"[#"+ _blogid + "#]");
                        }
                        else  // new post
                        {
			    var index=0;
			    var index2=0;
			    index = responseText.indexOf("<string>", index+1);
			    index2 = responseText.indexOf("</string>", index+1);
			    theId = responseText.substring(index+8,index2);

                            if(tiddlerElem.text.contains("</html>"))
                            {
                                tiddlerElem.text = tiddlerElem.text.replace("</html>", "[#" + theId + "#]</html>")
                            }
                            else
                            {
    			        tiddlerElem.text = tiddlerElem.text + "[#" + theId + "#]";
                            } // if(tiddlerElem.text.contains("</html>"))
                        } // if (_method == "metaWeblog.editPost")

                        store.savetiddlerElem(tiddlerElem.title,tiddlerElem.title,tiddlerElem.text,tiddlerElem.modifier,                         tiddlerElem.modified,tiddlerElem.tags,tiddlerElem.fields,true,tiddlerElem.created);
                        //story.refreshTiddler(tiddlerElem.title,null,true);
		} else {
			displayMessage("status is false");
			displayMessage(xhr.statusText);
		}
	};

	var headers = {
		"Content-type":"text/xml",
		"Content-length":postdata.length,
		"Connection":"close"
	};

	var ret = doHttp("POST",url,postdata,null,null,null,loginCallback,null,headers);
   	if(typeof ret == "string") {
   		displayMessage("Failed HTTP request - is BlogPlugin set up?","Error: " + ret);
   	} else {
   		displayMessage("posting...");
   	}

	/* old version without callback
    var xmlhttp = getXMLHttpRequest();

    if(window.Components && window.netscape && window.netscape.security && document.location.protocol.indexOf("http") == -1)
        window.netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");

    xmlhttp.open("POST", url, false);
    xmlhttp.setRequestHeader("Content-type", "text/xml");
    xmlhttp.setRequestHeader("Content-length", postdata.length);
    xmlhttp.setRequestHeader("Connection", "close");        
    xmlhttp.send(postdata);
    alert("You blog has been sent");
    //TODO: add response to blog submission
    
	END: old version without callback */
};

Blog.prototype.setSubject = function(txt){
    if (!txt) return;
    this.subject = txt;
};

Blog.prototype.setContent = function(txt){
    if (!txt) return;
    this.content = txt;
};

Blog.prototype.setTags = function(tags){
	for (var i=0;i<tags.length;i++) {
		if (tags[i] != "blog") {
			this.tags += "<value>" + tags[i] + "</value>";
		}
	}
	if (!this.tags) {
		this.tags = "<value>Uncategorized</value>";
		return;
	}
};

function XMLRPCMessage() {
    this.method = "";
    this.msgParams = [];
}

XMLRPCMessage.prototype.setMethod = function(methodName){
    if (!methodName) return;
    this.method = methodName;
};

XMLRPCMessage.prototype.xml = function(){

  var method = this.method;
  
  // assemble the XML message header
  var xml = "";
  
  xml += "<?xml version=\"1.0\"?>\n";
  xml += "<methodCall>\n";
  xml += "<methodName>" + method+ "</methodName>\n";
  xml += "<params>\n";
  
  // do individual parameters
  for (var i = 0; i < this.msgParams.length; i++){
    xml += this.msgParams[i];
  }
  
  xml += "</params>\n";
  xml += "</methodCall>";
  
  return xml; // for now
};

XMLRPCMessage.prototype.addBoolXML = function(data){
    var value = (data==true)?1:0;  
    this.msgParams[this.msgParams.length] = "<param>\n<value><boolean>" + value + "</boolean></value>\n</param>\n";
};

XMLRPCMessage.prototype.addStringXML = function(data){
    this.msgParams[this.msgParams.length] = "<param>\n<value><string>" + data + "</string></value>\n</param>\n";
};

XMLRPCMessage.prototype.addItemXML = function(data){
    this.msgParams[this.msgParams.length] = "<param>\n" + data + "\n</param>\n";
};

//}}}