var Helper = {

    log: function(to_log){
        if(localStorage.debug === "true") {
            console.log(to_log);
        }
    },

    rnd: function(arr)
    {
    	return arr[Math.floor(Math.random() * arr.length)];
    },

    mobilecheck: function() {
      var isMobile = false; //initiate as false
      // device detection
      if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(navigator.userAgent) 
      || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(navigator.userAgent.substr(0,4))) isMobile = true;
        return isMobile;
    },

    predicate: function() {
    	var fields = [],
    		n_fields = arguments.length,
    		field, name, cmp;

    	var default_cmp = function (a, b) {
    			if (a === b) return 0;
    			return a < b ? -1 : 1;
    		},
    		getCmpFunc = function (primer, reverse) {
    			var dfc = default_cmp,
    				// closer in scope
    				cmp = default_cmp;
    			if (primer) {
    				cmp = function (a, b) {
    					return dfc(primer(a), primer(b));
    				};
    			}
    			if (reverse) {
    				return function (a, b) {
    					return -1 * cmp(a, b);
    				};
    			}
    			return cmp;
    		};

    	// preprocess sorting options
    	for (var i = 0; i < n_fields; i++) {
    		field = arguments[i];
    		if (typeof field === 'string') {
    			name = field;
    			cmp = default_cmp;
    		} else {
    			name = field.name;
    			cmp = getCmpFunc(field.primer, field.reverse);
    		}
    		fields.push({
    			name: name,
    			cmp: cmp
    		});
    	}

    	// final comparison function
    	return function (A, B) {
    		var name, result;
    		for (var i = 0; i < n_fields; i++) {
    			result = 0;
    			field = fields[i];
    			name = field.name;

    			result = field.cmp(A[name], B[name]);
    			if (result !== 0) break;
    		}
    		return result;
    	};
    },

    hashCode: function(str) { // java String#hashCode
        var hash = 0;
        for (var i = 0; i < str.length; i++) {
           hash = str.charCodeAt(i) + ((hash << 5) - hash);
        }
        return hash;
    },

    intToARGB: function(i){
        return ((i>>24)&0xFF).toString(16) +
               ((i>>16)&0xFF).toString(16) +
               ((i>>8)&0xFF).toString(16) +
               (i&0xFF).toString(16);
    },

    hexToRgb: function(hex) {
        var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
        return result ? {
            r: parseInt(result[1], 16),
            g: parseInt(result[2], 16),
            b: parseInt(result[3], 16)
        } : null;
    },


    pad: function(n)
    {
    	return n < 10 ? "0"+Math.floor(n) : Math.floor(n);
    },


    contains: function(a, obj) {
        var i = a.length;
        while (i--) {
           if (a[i] === obj) {
               return true;
           }
        }
        return false;
    },

    sample: function() {
    	if (Date.now() - lastSample >= SAMPLE_RATE * 2) {
    		socket.removeAllListeners();
    		socket.disconnect();
    		socket.connect();
    		Player.setup_all_listeners();
    	}
    	lastSample = Date.now();
    	setTimeout(Helper.sample, SAMPLE_RATE);
    },

    loadjsfile: function(filename)
    {
    	if (filesadded.indexOf("["+filename+"]")==-1){
    	    var fileref=document.createElement('script');
    	    fileref.setAttribute("type","text/javascript");
    	    fileref.setAttribute("src", filename);
    	    document.getElementsByTagName("head")[0].appendChild(fileref);
    	    filesadded+="["+filename+"]";
    	}
    },

    msieversion: function() {

            var ua = window.navigator.userAgent;
            var msie = ua.indexOf("MSIE ");

            if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./))      // If Internet Explorer, return version number
                return true;
            else                 // If another browser, return 0
                return false;
    },

    getRandomInt: function(min, max) {
      return Math.floor(Math.random() * (max - min)) + min;
    },

    rgbToHsl: function(arr, light){
    	r = arr[0];
        g = arr[1];
        b = arr[2];
        r /= 255;
        g /= 255;
        b /= 255;
        var max = Math.max(r, g, b), min = Math.min(r, g, b);
        var h, s, l = (max + min) / 2;

        if(max == min){
            h = s = 0; // achromatic
        }else{
            var d = max - min;
            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
            switch(max){
                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
                case g: h = (b - r) / d + 2; break;
                case b: h = (r - g) / d + 4; break;
            }
            h /= 6;
        }

        if(l>0.5 && light)l=0.5; //make sure it isnt too light
        else if(l<0.65 && !light)l=0.65;

        return "hsl("+Math.floor(h*360)+", "+Math.floor(s*100)+"%, "+Math.floor(l*100)+"%)";
    },

    componentToHex: function(c) {
        var hex = c.toString(16);
        return hex.length == 1 ? "0" + hex : hex;
    },

    rgbToHex: function(r, g, b) {
        return "#" + Helper.componentToHex(r) + Helper.componentToHex(g) + Helper.componentToHex(b);
    },

    upperFirst: function(string){
        return string.substring(0,1).toUpperCase()+string.substring(1).toLowerCase();
    },

    addClass: function(object, toAdd){
        if(!Helper.contains($(object).attr("class").split(" "), toAdd)){
            $(object).addClass(toAdd);
        }
    },

    send_mail: function(from, message){


        if(from !== "" && message !== ""){

            $("#submit-contact-form").addClass("hide");
            $("#send-loader").removeClass("hide");
            $("#contact-form-from").attr("disabled", "true");
            $("#contact-form-message").attr("disabled", "true");

            $.ajax({
                type: "POST",
                data: {from: from, message: message},
                url: "/public/php/mail.php",
                success: function(data){
                    if(data == "success"){
                        $("#contact-container").empty();
                        $("#contact-container").html("Mail has been sent, we'll be back with you shortly.")
                    }else{
                        $("#contact-container").empty();
                        $("#contact-container").html("Something went wrong, sorry about that. You could instead try with your own mail-client: <a title='Open in client' href='mailto:contact@zoff.no?Subject=Contact%20Zoff'>contact@zoff.no</a>")
                    }
                }
            });
            /*from    = $("#contact-form-from").val();
            message = $("#contact-form-message").val();
            $("#contact-container").empty();
            newWindow = window.open("mailto:contact@zoff.no?Subject=Contact%20Zoff&Body=" + message, "_blank");
            $("#contact-container").html("Something went wrong, sorry about that. You could instead try with your own mail-client: <a title='Open in client' href='mailto:contact@zoff.no?Subject=Contact%20Zoff&Body=" + message + "'>contact@zoff.no</a>");
            setTimeout(function(){newWindow.close();},500);*/
        }
    }

};

$(document).on('submit', '#contact-form', function(e){
  e.preventDefault();

  var message = $("#contact-form-message").val();
  var from    = $("#contact-form-from").val();

  Helper.send_mail(from, message);
});


Element.prototype.remove = function() {
    this.parentElement.removeChild(this);
};

NodeList.prototype.remove = HTMLCollection.prototype.remove = function() {
    for(var i = 0, len = this.length; i < len; i++) {
        if(this[i] && this[i].parentElement) {
            this[i].parentElement.removeChild(this[i]);
        }
    }
};


String.prototype.startsWith = function(searchString, position) {
    position = position || 0;
    return this.indexOf(searchString, position) === position;
};