//***********************************************
// IceKarma's WikiLinks script for ChatZilla
// Version 1.2
//   1.2 by James Ross: fix the normal links by shunting the
//       word-hyphenator as well.
// Version 2.0
//   2.0 By Glen Mailer:
//        - Converted to new plugin API
//        - Ripped out a whole load of unused stuff
//        - Also Made to fit chatzilla coding pedantics
//   2.1 By Alphax:
//        - Added basic template linking functionality
//   2.2 By Alphax:
//        - subst: and pipes now handled correctly in templates
//   2.3 by Pathoschild:
//        - reverted to 2.2 (2.3 broke all links with non-interlanguage prefixes)
//        - fixed mailto: wikilink glitch (based on 2.3 code by Stigmj)
//   2.4 By Stigmj:
//        - added support for handling mirc-colors.
//   2.5 By GeorgeMoney:
//        - fixed for change in API
//   2.6 By Pathoschild:
//        - fix broken interwiki prefix ([[w:foo]]);
//        - add support for namespace template syntax;
//        - fix modifiers msg, msgnw, raw; correct int (points to "mediawiki:foo", not "template:int:foo");
//        - don't link parameters: {{[[template:foo|foo]]|bar}}.
//   2.7 By Pathoschild:
//        - added support for external link syntax.
// This file is hereby placed by the authors into the public domain.


plugin.id = "WikiLinks";

plugin.prefary = 
    "class", "wiki-link", ""],
];

//
// Plugin management
//

plugin.init = 
function init(glob) {
    plugin.major = 2;
    plugin.minor = 7;
    plugin.version = plugin.major + "." + plugin.minor;
    plugin.description = "Munges wikiML links to be clickable in the output window";
    plugin.prefary = plugin.prefary.concat(plugin.prefary);
}

plugin.disable = 
function disable()
{
    client.munger.delRule("wiki-link");
    client.munger.delRule("wiki-template-link");
	client.munger.delRule("wiki-external-link");
    client.commandManager.removeCommands(plugin.commands);

    display( plugin.id + " v" + plugin.version + " disabled.");
    
    return true;
}

plugin.enable = 
function enable()
{
    client.munger.addRule("wiki-link", /(\[(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*\[(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*[^\]]+(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*\](?:[\x1f\x02\x0f\x03\x16]\d{1,2})*\])/, insertWikiLink, 10, 10);
    client.munger.addRule("wiki-template-link", /(\{(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*\{(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*[^\}]+(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*\}(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*\})/, insertWikiTemplateLink, 10, 10);
    client.munger.addRule("wiki-external-link", /(\[http:\/\/[^\s]+ [^\]]+\])/, insertWikiExtLink, 10, 10);
	
	
    var cmdary = 
         "wiki-links-class", cmdClass, CMD_CONSOLE, "[<className>]" ],
    ];

    plugin.commands = client.commandManager.defineCommands(cmdary);

    display( plugin.id + " v" + plugin.version + " enabled.");
    
    return true;

}

//
// Mungers
//

function insertWikiLink(matchText,containerTag, data, mungerEntry) {
    var wikiLink = matchText;
    var linkTitle;

    wikiLink  = matchText.replace(/^\[(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*\[(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*/, "");
    wikiLink  = wikiLink.replace(/(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*\](?:[\x1f\x02\x0f\x03\x16]\d{1,2})*\]$/, "");
	linkTitle = wikiLink;
	
	// fix bad links (but leave linkTitle)
	wikiLink = wikiLink.replace(/^w:/, ""); 
	
    if (linkTitle.match(/\|/)) {
        var ary = linkTitle.match(/^(.*?)\|(.*)$/);
        wikiLink = ary1];
        linkTitle = ary2];
    }
    wikiLink = escape(wikiLink.replace(/ /g, "_"));

    var anchor = document.createElementNS( "http://www.w3.org/1999/xhtml",
                                           "html:a");
    anchor.setAttribute("href", "http://en.wikipedia.org/wiki/" + wikiLink);
    anchor.setAttribute("class", "chatzilla-link "+plugin.prefs"class"]);
    mungerEntry.enabled = false;
    data.inLink = true;
    client.munger.munge(linkTitle, anchor, data);
    mungerEntry.enabled = true;
    delete data.inLink;
    
    //insertHyphenatedWord(linkTitle, anchor, data);
    containerTag.appendChild(document.createTextNode("[["));
    containerTag.appendChild(anchor);
    containerTag.appendChild(document.createTextNode("]]"));
}

function insertWikiTemplateLink(matchText,containerTag, data, mungerEntry) {
    var wikiLink = matchText;
    var linkTitle;

    wikiLink  = matchText.replace(/^\{(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*\{(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*/, "");
    wikiLink  = wikiLink.replace(/(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*\}(?:[\x1f\x02\x0f\x03\x16]\d{1,2})*\}$/, "");
	linkTitle = wikiLink;

	// fix  parameters
	if(linkTitle.match(/^[^\|]+\|/)) {
		linkParam = linkTitle.replace(/^[^\|]+\|(.*)$/, "|$1");
		linkTitle = linkTitle.replace(/^([^\|]+)\|.*$/, "$1");
		wikiLink  = linkTitle;
	}
	else {
		linkParam = false;
	}
	
	// fix bad links (but leave linkTitle)
		wikiLink  = wikiLink.replace(/^(?:template|msgnw|raw|subst):/, ""); // modifiers

	// set namespace by syntax
	if(wikiLink.match(/^:[a-z\s]*:?/i)) {
		wikiLink = wikiLink.replace(/^:([a-z\s]+):/i, "$1:"); // most ns
		wikiLink = wikiLink.replace(/^:/, ""); // main
	}
	else if(wikiLink.match(/^int:/i)) {
		wikiLink = wikiLink.replace(/^int:/i, "MediaWiki:"); // fix modifier
	}
	else {
		wikiLink = wikiLink.replace(/^/, "Template:");
	}
	
	// construct link
    wikiLink = escape(wikiLink.replace(/ /g, "_"));
    var anchor = document.createElementNS( "http://www.w3.org/1999/xhtml",
                                           "html:a");
    anchor.setAttribute("href", "http://en.wikipedia.org/wiki/" + wikiLink);
    anchor.setAttribute("class", "chatzilla-link "+plugin.prefs"class"]);
    mungerEntry.enabled = false;
    data.inLink = true;
    client.munger.munge(linkTitle, anchor, data);
    mungerEntry.enabled = true;
    delete data.inLink;

    //insertHyphenatedWord(linkTitle, anchor, data);
    containerTag.appendChild(document.createTextNode("{{"));
    containerTag.appendChild(anchor);
	if(linkParam) {
		containerTag.appendChild(document.createTextNode(linkParam));
	}
    containerTag.appendChild(document.createTextNode("}}"));
}

function insertWikiExtLink(matchText,containerTag, data, mungerEntry) {
    var wikiExtLink = matchText;
    var linkTitle = matchText;

	// separate link and text
	wikiExtLink = wikiExtLink.replace(/^\[(http:\/\/[^\s]+)\s+.*$/, "$1");
	linkTitle   = linkTitle.replace(/^\[http:\/\/[^\s]+ ([^\]]+)\]$/, "$1");
	
	// create link
	var anchor = document.createElementNS( "http://www.w3.org/1999/xhtml",
                                           "html:a");
    anchor.setAttribute("href", wikiExtLink);
    anchor.setAttribute("class", "chatzilla-link "+plugin.prefs"class"]);
	anchor.setAttribute("style", "text-decoration:underline;");
    mungerEntry.enabled = false;
    data.inLink = true;
    client.munger.munge(linkTitle, anchor, data);
    mungerEntry.enabled = true;
    delete data.inLink;
    
    // show link syntax
    containerTag.appendChild(anchor);
	
	// add external link icon
	var img = document.createElementNS( "http://www.w3.org/1999/xhtml",
                                           "html:img");
	img.setAttribute("src", 'http://upload.wikimedia.org/wikipedia/commons/4/44/External.png');
	containerTag.appendChild(img);
}

//
// Commands
//

function cmdClass(e) {
    if ( null != e.linkclass )
        plugin.prefs"class" = e.linkclass;
    display( "Current value: " + plugin.prefs"class" );
}

// End of file