/* game of forfeits - JS worker */
var com = com||{};
com.unitedCoders = com.unitedCoders || {};
com.unitedCoders.forfeits = {
    testShort: function() { com.unitedCoders.forfeits.shortCodeSolution(100); },
    shortCodeSolution : function(n){
	var sum=0, res=[];
	for (var i=0; i<=n; i++){
	    var sum = 0, x=i;
	    while(x>0){
		sum += x%10;
		x = Math.floor(x/10);
	    }
	    if (!(i%7===0||i.toString().indexOf("7")!==-1||
		  sum%7===0||sum.toString().indexOf("7")!==-1))
		res.push(i);
	}
	return res;
    },
    testClean: function() { com.unitedCoders.forfeits.cleanCodeSolution(100); },
    cleanCodeSolution : function(n){
	for (var i=0, res=[]; i <= n; i++) {
	    if (!(containsSeven(i) || isMultipleOfSeven(i) ||
		  sumContainsSeven(i) || sumIsMultipleOfSeven(i))) {
		res.push(i);
	    }
	}
	return res;

	function containsSeven (n) {
	    return String(n).indexOf("7") !== -1;
	}
	function isMultipleOfSeven (n) {
	    return n % 7 === 0;
	}
	function sumContainsSeven (n) {
	    return containsSeven(sumOfDigits(n));
	}
	function sumIsMultipleOfSeven (n) {
	    return isMultipleOfSeven(sumOfDigits(n));
	}  
	function sumOfDigits (n) {
	    var sum = 0;
	    while (n > 0) {
		sum += n % 10;
		n = Math.floor(n / 10);
	    }
	    return sum;
	}
    },
    evalFunction: function(text) {
	try {
	    var fn = eval("com.unitedCoders.forfeits.yourSolution = function(n){"+text+"};");
	    return typeof(fn)==="function";
	} catch (err) { return false; }
    },
    testYour: function() { com.unitedCoders.forfeits.yourSolution(100); },
    yourSolution : function(n) {
	return [];
    },
    runTest: function(testFunction) {
	//console.info("testing...");//+ document.getElementById("fn_text").value);
	var resultNode = document.getElementById("fn_result");
	
	var parsed = testFunction || this.evalFunction(document.getElementById("fn_text").value);

	if (!parsed) {
	    if (resultNode)
		resultNode.innerHTML = "Function could not parsed!";
	    return false;
	}
	var max = 100 + Math.floor(Math.random()*100);
	var std = this.cleanCodeSolution(max);
	var your = this.yourSolution(max);

	if (!(your instanceof Array)) {
	    if (resultNode)
		resultNode.innerHTML = "your result should be instanceof Array";
	    return false;
	}
	if (typeof(std)!==typeof(your)) {
	    if (resultNode)
		resultNode.innerHTML = "typeof(std): "+(typeof(std))+", but typeof(your): "+(typeof(your));
	    return false;
	}
	if (std.length!==your.length) {
	    if (resultNode)
		resultNode.innerHTML = "cleanCodeSolution.length: "+(std.length)+", but yourSolution.length: "+(your.length);
	    if (resultNode)
		resultNode.innerHTML += "<pre> std: "+(std.join(","))+"\nyour: "+(your.join(",")+"</pre>");
	    return false;
	}
	if (std.join(",") !== your.join(",")) {
	    if (resultNode)
		resultNode.innerHTML = "std: "+(std)+" != "+(your);
	    return false;
	}
	if (resultNode)
	    resultNode.innerHTML = "Function is correct!";
	document.getElementById("jslitmus_container").style.visibility = "visible";
	return true;
    }
};