dump skype conversation to csv.js

(function(){
    var msgs = document.querySelectorAll('swx-message');
var mLen = msgs.length;
var out = []
for (let i=0; i<mLen; i++){
    let r = [];
    let m = msgs[i];
    let user = (m.querySelector('.tileName') && m.querySelector('.tileName').innerText.trim()) || '-';
    let timestamp = (m.querySelector('[data-bind^="text: setBottom"]') && m.querySelector('[data-bind^="text: setBottom"]').innerText.trim()) || '';
    let content = m.querySelector('.content').innerText.trim().replace(/\n/g,'\\n') || '';
    r.push(timestamp, user, content);
    out.push(r.join('\t'));
}
csv = out.join('\n');

function getRawCSVBlow(csv){
    var bom = decodeURIComponent("%EF%BB%BF");// "\uFEFF\n";
    var byteArray = [];
    csv = bom + csv;
    csvA = new Uint16Array(csv.split('').map( function(k, v){
        return k.charCodeAt(0);
    }));
    
    var blob = new Blob([csvA],{type:'text/csv;charset=UTF-16LE;'});
    var blobUrl=URL.createObjectURL(blob);
    return blobUrl;
}


function download(filename, text) {
	var pom = document.createElement('a');
	pom.setAttribute('href', text);
	pom.setAttribute('download', filename);

	if (document.createEvent) {
		var event = document.createEvent('MouseEvents');
		event.initEvent('click', true, true);
		pom.dispatchEvent(event);
	}
	else {
		pom.click();
	}
}

download('raport.csv', getRawCSVBlow(csv));
})()