Общее количество TBD по родительскому элементу в данных Json в JavaScript / Nodejs

В приведенных ниже данных JSON есть EmployeeNumber с TBD и Number. Мне нужно было бы только TBD счетчик из JSON и прикрепить к нему родительский элемент.

var myJson = {
"Name": "Sam",
"EmployeeNumber": "002",
 "IsManager":"True",
 "children": [{
        "Name": "Ravi",
       "EmployeeNumber": "0008",
         "IsManager":"True",
        "children": [{
                "Name": "Krishna",
                "EmployeeNumber": "TBD"
            }, {
                "Name": "diwakar",
                "EmployeeNumber": "007"
            },
            {
                "Name": "Dillep",
                "EmployeeNumber": "009"
            },
            {
                "Name": "David",
                "EmployeeNumber": "009"
            },
            {
                "Name": "Nicholes",
                "EmployeeNumber": "TBD"
            },
            {
                "Name": "Hari",
                "EmployeeNumber": "TBD"
            }
        ]
    },
    {
        "Name": "Rahul",
        "EmployeeNumber": "TBD"
    },
    {
        "Name": "Kiran",
        "EmployeeNumber": "TBD"
    }, {
        "Name": "Kumar",
        "EmployeeNumber": "TBD"
    },
    {
        "Name": "AJAy",
        "EmployeeNumber": "TBD"
    }
]

}

Из приведенного выше JSON я хотел бы иметь общий счетчик TBD и добавить счетчик к имени родителя: Сэм = 4TBD / 0FTE и счетчик TBD детей к Рави = 3TBD / 3FTE, и если IS Manager имеет значение True

Ожидаемый результат:

var myJson = {
"Name": "Sam",
"EmployeeNumber": "002",
"IsManager": "Ture",
"Count": "4TBD/0FTE",
"children": [{
        "Name": "Ravi",
        "EmployeeNumber": "TBD",
        "IsManager": "Ture",
        "Count": "3TBD/3FTE",
        "children": [{
                "Name": "Krishna",
                "EmployeeNumber": "TBD"
            }, {
                "Name": "diwakar",
                "EmployeeNumber": "007"
            },
            {
                "Name": "Dillep",
                "EmployeeNumber": "009"
            },
            {
                "Name": "David",
                "EmployeeNumber": "009"
            },
            {
                "Name": "Nicholes",
                "EmployeeNumber": "TBD"
            },
            {
                "Name": "Hari",
                "EmployeeNumber": "TBD"
            }
        ]
    },
    {
        "Name": "Rahul",
        "EmployeeNumber": "TBD"
    },
    {
        "Name": "Kiran",
        "EmployeeNumber": "TBD"
    }, {
        "Name": "Kumar",
        "EmployeeNumber": "TBD"
    },
    {
        "Name": "AJAy",
        "EmployeeNumber": "TBD"
    }
]

}

Я пробовал с одним ниже

    var annCtr=[];
    var annFtr=[];
    arr.forEach(function(myJSON) {
    var ctr=[];
    var ftr=[];
     if (myJSON.EmployeeNumber == "TBD") {
        annCtr.push(myJSON.EmployeeNumber);
        ctr.push(myJSON.EmployeeNumber);
       }
    else
    {
    annFtr.push(myJSON.EmployeeNumber);
    ftr.push(myJSON.EmployeeNumber);
    //console.info("FTR :"+myJSON.EmployeeNumber+" Name "+myJSON.Name);
    }
//console.info("Length CTRCT for each loop: "+ctr.length);
//console.info("Length FTE for each loop: "+ftr.length);
})
function children(myJSON) {
  return myJSON.children;
  console.info(d.children);
}
console.info("Total Length FTE for : "+annFtr.length);
console.info("Total Length CTRCT for: "+annCtr.length);
console.info('//////////////////////////////////////////');

Заранее спасибо за помощь