/*
    proxy.js
    This script help proxy text content of the requested page and render them locally
*/

//Get the target webpage body
requirelib("http");
var websiteContent = http.get(url);
var rootURL = url.split("/");
rootURL.pop();
rootURL = rootURL.join("/");


//replace the relative path files with absolutes
websiteContent = websiteContent.split('src="/').join('src="' + rootURL + '/');
websiteContent = websiteContent.split('href="/').join('href="' + rootURL + '/');

//Replace href with redirection code
var htmlSegmentChunks = websiteContent.split(" ");
var chunksToBeReplaced = [];
for (var i = 0; i < htmlSegmentChunks.length; i++){
    var thisSegment = htmlSegmentChunks[i].trim();
    if (thisSegment.substring(0, 5) == "href="){
        //Process the segment and trim out only the href="xxx" part
        var cutPosition = thisSegment.lastIndexOf('"');
        thisSegment = thisSegment.substring(0, cutPosition + 1)
        if (thisSegment.trim().length > 6){
            chunksToBeReplaced.push(thisSegment);
            //console.log("SEGMENT:", thisSegment, thisSegment.trim().length);
        }
    }
}

for (var k= 0; k < chunksToBeReplaced.length; k++){
    var thisSegment = chunksToBeReplaced[k];
    thisSegment = thisSegment.replace('href="', "parent.loadWebsite(\"")
    thisSegment = thisSegment + ");"
    thisSegment = thisSegment.split("\"").join("'");
    thisSegment = "onclick=\"" + thisSegment + "\"";
    

    //Check if this is css / style files. If yes, bypass it
    var expectedFileExtension = thisSegment.trim().substring(thisSegment.lastIndexOf("."), thisSegment.length -4);
    if (expectedFileExtension == ".css" || expectedFileExtension == ".js" || thisSegment.indexOf(".css") >= 0){
        continue;
    }
    //console.log("REPLACING", chunksToBeReplaced[k], thisSegment);
    websiteContent = websiteContent.replace(chunksToBeReplaced[k], thisSegment);
}



//console.log(websiteContent);
sendResp(websiteContent);