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<div ng-app>
    <div ng-controller="mainCtrl">
        <h1>메뉴판</h1>
        <h2>메뉴 목록</h2>
        
        <table class="table">
            <thead>
                <tr><th>메뉴</th><th>가격</th><th>갯수</th></tr>
            </thead>
            <tbody>
                <tr ng-repeat="menu in menuList">
                    <td>{{menu.itemName}}</td>
                    <td>{{menu.itemPrice}}</td>
                    <td><input type="number" ng-model="menu.itemCount" /></td>
                </tr>
            </tbody>
            <tfoot>
                <tr>
                    <td colspan="2">구입가격</td>
                    <td class="text-right">{{totalPrice}}</td>
                </tr>
            </tfoot>
        </table>
        <div class="text-right">
            <button type="button" class="btn btn-default" ng-click="buy()">구매</button>
        </div>
    </div>
</div>

var mainCtrl = function($scope){
    var menuList = [
        {itemId: 1, itemName: '샌드위치', itemPrice: 2000, itemCount: 0},
        {itemId: 2, itemName: '아메리카노', itemPrice: 1000, itemCount: 0},
        {itemId: 3, itemName: '카푸치노', itemPrice: 1500, itemCount: 0}
    ];
        
    $scope.menuList = menuList;
    $scope.totalPrice = 0;
        
    $scope.buy = function(){
        $scope.totalPrice = 0;
        angular.forEach($scope.menuList, function(menu, idx){
            $scope.totalPrice = $scope.totalPrice + (menu.itemPrice * Number(menu.itemCount));        
        });    
    };
};