[Exam Problems] JavaScript Basics Exam - 28 July 2014 - 04.

var arr = ["Germany / Argentina: 1-0", "Brazil / Netherlands: 0-3", "Netherlands / Argentina: 0-0", "Brazil / Germany: 1-7",
    "Argentina / Belgium: 1-0", "Netherlands / Costa Rica: 0-0", "France / Germany: 0-1", "Brazil / Colombia: 2-1" ]
mess(arr)

function mess (input){
    var result = {}
    var arr = []
    var obj = {}

    for (var i = 0; i < input.length; i++) {
        var a = (input[i].trim().split(':'));  //console.log(a)
        var key1 = ((a[0].trim().split('/'))[0]).trim();  //console.log(key1)
        var key2 = ((a[0].trim().split('/'))[1]).trim();  //console.log(key2)
        var value1 = Number((((a[1]).trim().split('-'))[0]).trim()); //console.log(value1)
        var value2 = Number((((a[1]).trim().split('-'))[1]).trim()); //console.log(value2)
        obj[key1] = value1
        obj[key2] = value2; //console.log(obj)
        arr.push(obj)
        obj = {}
    }
//    console.log(arr)

    for (var i = 0; i < arr.length; i++) {
        var countryfirst = Object.keys(arr[i])[0];
        var countrysecond = Object.keys(arr[i])[1]//console.log(country)

        if (!result[countryfirst]){
            result[countryfirst]= {goalsScored:0,goalsConceded:0,matchesPlayedWith:[] }
        }
        if (result[countryfirst].matchesPlayedWith.indexOf(countrysecond)==-1)
        {
            result[countryfirst].matchesPlayedWith.push(countrysecond)
        }
//        result[countryfirst].matchesPlayedWith.push(countrysecond)
        result[countryfirst].goalsScored = result[countryfirst].goalsScored + arr[i][Object.keys(arr[i])[0]]
        result[countryfirst].goalsConceded = result[countryfirst].goalsConceded + arr[i][Object.keys(arr[i])[1]]


        if (!result[countrysecond]){
            result[countrysecond]= {goalsScored:0,goalsConceded:0,matchesPlayedWith:[] }
        }
        if (result[countrysecond].matchesPlayedWith.indexOf(countryfirst)){
            result[countrysecond].matchesPlayedWith.push(countryfirst)
        }
        result[countrysecond].goalsScored = result[countrysecond].goalsScored + arr[i][Object.keys(arr[i])[1]]
        result[countrysecond].goalsConceded = result[countrysecond].goalsConceded + arr[i][Object.keys(arr[i])[0]]


    }

    var keysarr = Object.keys(result)
    keysarr.sort(); //console.log(keysarr)
    var res = {}
    for (var i = 0; i < keysarr.length; i++) {
        res[keysarr[i]] = result[keysarr[i]]
    }


//    for (var i = 0; i < Object.keys(res).length; i++) {
//        res[i].matchesPlayedWith.sort()
//    }
    for (var j in res){ res[j].matchesPlayedWith.sort()}
    console.log(JSON.stringify(res))

}