var URLExp  = /(https?:\/\/[^\s,]+)/ig,
    emailExp= /\"([^\"]+)\"\s+\<([^\>]+)\>/ig;

var types={
    img     : {
        jpg : true,
        jpeg: true,
        gif : true,
        png : true,
        bmp : true,
        svg : true,
        tiff: true,
        webp: true,
        wbmp: true
    },
    audio   : {
        mp3 : true,
        wav : true,
        aac : true
    },
    video   : {
        ogg : true,
        webm: true,
        mp4 : true
    }
}

function convertToHTML(url){
    if(url.match('@'))
        return [
            '<a href="maito:',
            url,
            '">',
            url,
            '</a>'
        ].join('');
        
    var data=url.split('.');
    
    var extention=data.slice(-1);
    
    if(types.img[extention])
        return formatToImg(url,extention);
        
    if(types.video[extention])
        return formatToVideo(url,extention);
        
    if(types.audio[extention]){
        postMessage(
            {
                fetchAudio:url
            }
        );
        return formatToAudio(url);
    }
    
    return formatToIFrame(url);
}

function formatToImg(url,extention){
    return [
        '<img class="message-img" src="',
        url,
        '"/>'
    ].join('');
}

function formatToAudio(url,extention){
    return [
        '<hr>',
        '<audio class="message-audio" controls><source src="',
        url,
        '"></audio>',
        '<hr>'
    ].join('');
}

function formatToVideo(url,extention){
    return [
        '<hr>',
        '<video class="message-video" controls><source src="',
        url,
        '"></video>',
        '<hr>'
    ].join('');
}

function formatToEmail(url){
    return [
        '<a class="message-email" href="maito:',
        url,
        '">',
        url,
        '</a>'
    ].join('');
}

function formatToLink(url){
    return [
        '<a class="message-link" href="',
        url,
        '">',
        url,
        '</a>'
    ].join('');
}

function formatToIFrame(url){
    return [
        '<hr>',
        url,
        '<iFrame class="message-iframe" src="',
        url,
        '"></iFrame>',
        '<hr>'
    ].join('');
}

onmessage=function(data){
    var msg     = data.data.msg,
        urls    = msg.match(URLExp),
        emails  = msg.match(emailExp);
    
    if(!urls){
        postMessage(msg);
        return;
    }
    
    for(i in urls){
        msg=msg.replace(
            urls[i],
            convertToHTML(urls[i])
        )
    }
    
    for(i in emails){
        msg=msg.replace(
            emails[i],
            convertToHTML(emails[i])
        )
    }
    
    postMessage(msg);
    close();
}