/*
        Copyright (c) 2004-2005, The Dojo Foundation
        All Rights Reserved.

        Licensed under the Academic Free License version 2.1 or above OR the
        modified BSD license. For more information on Dojo licensing, see:

                http://dojotoolkit.org/community/licensing.shtml
*/

dojo.hostenv.loadedUris.push("../src/bootstrap1.js");
dojo.hostenv.loadedUris.push("../src/hostenv_browser.js");
dojo.hostenv.loadedUris.push("../src/bootstrap2.js");

function removeComments(contents){
        contents = new String((!contents) ? "" : contents);
        // clobber all comments
        contents = contents.replace( /^(.*?)\/\/(.*)$/mg , "$1");
        contents = contents.replace( /(\n)/mg , "__DOJONEWLINE");
        contents = contents.replace( /\/\*(.*?)\*\//g , "");
        return contents.replace( /__DOJONEWLINE/mg , "\n");
}

dojo.hostenv.getRequiresAndProvides = function(contents){
        // FIXME: should probably memoize this!
        if(!contents){ return []; }

        // check to see if we need to load anything else first. Ugg.
        var deps = [];
        var tmp;
        RegExp.lastIndex = 0;
        var testExp = /dojo.(hostenv.loadModule|hosetnv.require|require|requireIf|hostenv.conditionalLoadModule|hostenv.startPackage|hostenv.provide|provide)\([\w\W]*?\)/mg;
        while((tmp = testExp.exec(contents)) != null){
                deps.push(tmp[0]);
        }
        return deps;
}

dojo.hostenv.getDelayRequiresAndProvides = function(contents){
        // FIXME: should probably memoize this!
        if(!contents){ return []; }

        // check to see if we need to load anything else first. Ugg.
        var deps = [];
        var tmp;
        RegExp.lastIndex = 0;
        var testExp = /dojo.(requireAfterIf|requireAfter)\([\w\W]*?\)/mg;
        while((tmp = testExp.exec(contents)) != null){
                deps.push(tmp[0]);
        }
        return deps;
}

/*
dojo.getNonExistantDescendants = function(objpath){
        var ret = [];
        // fast path for no periods
        if(typeof objpath != "string"){ return dj_global; }
        if(objpath.indexOf('.') == -1){
                if(dj_undef(objpath, dj_global)){
                        ret.push[objpath];
                }
                return ret;
        }

        var syms = objpath.split(/\./);
        var obj = dj_global;
        for(var i=0;i<syms.length;++i){
                if(dj_undef(syms[i], obj)){
                        for(var j=i; j<syms.length; j++){
                                ret.push(syms.slice(0, j+1).join("."));
                        }
                        break;
                }
        }
        return ret;
}
*/

dojo.clobberLastObject = function(objpath){
        if(objpath.indexOf('.') == -1){
                if(!dj_undef(objpath, dj_global)){
                        delete dj_global[objpath];
                }
                return true;
        }

        var syms = objpath.split(/\./);
        var base = dojo.evalObjPath(syms.slice(0, -1).join("."), false);
        var child = syms[syms.length-1];
        if(!dj_undef(child, base)){
                // alert(objpath);
                delete base[child];
                return true;
        }
        return false;
}

var removals = [];

function zip(arr){
        var ret = [];
        var seen = {};
        for(var x=0; x<arr.length; x++){
                if(!seen[arr[x]]){
                        ret.push(arr[x]);
                        seen[arr[x]] = true;
                }
        }
        return ret;
}

// over-write dj_eval to prevent actual loading of subsequent files
var old_dj_eval = dj_eval;
dj_eval = function(){ return true; }
dojo.hostenv.oldLoadUri = dojo.hostenv.loadUri;
dojo.hostenv.loadUri = function(uri){
        if(dojo.hostenv.loadedUris[uri]){
                return;
        }
        try{
                var text = this.getText(uri, null, true);
                var requires = dojo.hostenv.getRequiresAndProvides(text);
                eval(requires.join(";"));
                dojo.hostenv.loadedUris.push(uri);
                dojo.hostenv.loadedUris[uri] = true;
                var delayRequires = dojo.hostenv.getDelayRequiresAndProvides(text);
                eval(delayRequires.join(";"));
        }catch(e){
                alert(e);
        }
        return true;
}

dojo.hostenv.writeIncludes = function(){
        for(var x=removals.length-1; x>=0; x--){
                dojo.clobberLastObject(removals[x]);
        }
        var depList = [];
        var seen = {};
        for(var x=0; x<dojo.hostenv.loadedUris.length; x++){
                var curi = dojo.hostenv.loadedUris[x];
                // dojo.debug(curi);
                if(!seen[curi]){
                        seen[curi] = true;
                        depList.push(curi);
                }
        }

        dojo.hostenv._global_omit_module_check = true;
        for(var x=3; x<depList.length; x++){
                document.write("<script type='text/javascript' src='"+depList[x]+"'></script>");
        }
        document.write("<script type='text/javascript'>dojo.hostenv._global_omit_module_check = false;</script>");
        dj_eval = old_dj_eval;
}