app.js

var app = angular.module('ngMacro', []);
app.controller('macroCtrl', function ($scope){
    $scope.user = { };

    $scope.goals = {
	    current: {
	        title:"Mainteance"
	        ,calories: 0
	        ,protein: 0
	        ,fats: 0
	        ,carbs:0
	    }
	    ,loss: {
	        title:"Fat Loss"
	        ,calories: 0
	        ,protein: 0
	        ,fats: 0
	        ,carbs:0
	    }
	    ,gain:{
	        title:"Muscle Gain"
	        ,calories: 0
	        ,protein: 0
	        ,fats: 0
	        ,carbs:0
	    }
	};

	$scope.activityLevels = [{
	        title: "Little or No Exercise"
	        ,description: "You are Lazy and avoid exercise"
	        ,value: 1.2
	    }
	    ,{
	        title: "Light Exercise"
	        ,description: "Exercise 1-3 times a week"
	        ,value: 1.375
	    }
	    ,{
	        title: "Moderate Exercise"
	        ,description: "Exercise 3-5 times a week"
	        ,value: 1.55
	    }
	    ,{
	        title: "Heavey Exercise"
	        ,description: "You Exercise 6-7 times a week"
	        ,value: 1.725
	    }
	    ,{
	        title: "Professional Athlete"
	        ,description: "You Exercise approx 2 times a Day"
	        ,value: 1.9
	    }
	];


    $scope.getMetaRate = function(){

		var meta; 
		if($scope.user.sex === "male"){
			meta = (88.362 + (13.397 * parseFloat(  $scope.user.weight) ) 
					+(5.799 * parseFloat(  $scope.user.height) )
					-(5.677 * parseFloat(  $scope.user.age) ) || 0 ); 
					
		}else if($scope.user.sex === "female"){
			meta = (447.593 + (9.247 * parseFloat(  $scope.user.weight) )
					+(3.098 * parseFloat(  $scope.user.height) )
					-(4.33 * parseFloat(  $scope.user.age) ) || 0 );
		}
		else{ meta = null;}

		$scope.user.bmr= meta;

		return (!isNaN(meta) && (meta!=null)) ? parseFloat(meta).toFixed(2) : "Please Fill Out the above Form";

	};
	$scope.updateNutrition=function(){
	    if(($scope.user.sex === "male" || $scope.user.sex === "female") && $scope.user.weight>0 && $scope.user.height>0 && $scope.user.age>0 && $scope.user.activityLevel>0){
	        $scope.goals.current.calories = parseFloat($scope.user.bmr * $scope.user.activityLevel)|| 0;
	        $scope.goals.loss.calories = $scope.goals.current.calories * 0.85 || 0;
	        $scope.goals.gain.calories = $scope.goals.current.calories * 1.15 || 0;

	        $scope.goals.current.protein = $scope.user.weight*2.204 || 0;
	        $scope.goals.loss.protein = $scope.user.weight*2.204 || 0;
	        $scope.goals.gain.protein = $scope.user.weight*2.204*1.5 || 0;

	        $scope.goals.current.carbs = ($scope.goals.current.calories*0.3)/4 || 0; 
	        $scope.goals.loss.carbs = ($scope.goals.loss.calories*0.15)/4 || 0;
	        $scope.goals.gain.carbs = ($scope.goals.gain.calories*0.3)/4 || 0;

	        $scope.goals.current.fats = ($scope.goals.current.calories -($scope.goals.current.protein*4)-($scope.goals.current.carbs*4))/9 || 0;
	        $scope.goals.loss.fats = ($scope.goals.loss.calories -($scope.goals.loss.protein*4)-($scope.goals.loss.carbs*4))/9 || 0;
	        $scope.goals.gain.fats = ($scope.goals.gain.calories -($scope.goals.gain.protein*4)-($scope.goals.gain.carbs*4))/9 || 0;
	    }
	}

	$scope.getName = function(){
            if($scope.user.name===undefined || $scope.user.name==="")
                return "";

            return $scope.user.name+"'s";
        }

});