//AlgoChal: p107, Reverse Word Order
function reverseStr(str, p_bool=false){

  var arr = strToArr(str, p_bool);
  var newstr= "";

  for(var i = arr.length-1; i>=0; i--){

    if (i==0){
      newstr+=arr[i];
    }

    else{
      newstr+=arr[i];
      newstr+=" ";
    }
  }
  return newstr;
}


//AlgoChal: p107, String to Word Array
function strToArr(str, punct=false){
//  console.log("I am in strToArr and punct is: ", punct);
  var arr= [];
  var temp = "";

  for(var i = 0; i<str.length; i++){
    if(punct){
      if (str[i]>='A' && str[i]<='z'){
          temp+=str[i];
      }
      else if(str[i]==" " && i!=0){
        arr.push(temp);
        temp="";
      }
      else{
        continue;
      }
    }

    else{
      if(str[i]==" " && i!=0){
        arr.push(temp);
        temp="";
      }
      else{
        temp+=str[i];
      }
    }
  }

  if(temp.length>0){
    arr.push(temp);
  }
  return arr;
}

//reverseStr('I -am me', true);

//AlgoChal: p107, Unique Words
function uniqueStr(str){

  var arr = strToArr(str);
  var obj = {};
  var count = 0;


  console.log(arr.length);
  for(var i = 0; i <= arr.length-1; i++){
    console.log("This is step: ",i);
    console.log(obj);
    console.log(Object.values(obj));
    console.log(arr[i]);
    //if (arr[i] in obj){
    if(Object.values(obj).includes(arr[i])){
      console.log("Evaluated to true: ", i);
      continue;
    }

    else {
      obj[count] = arr[i];
      console.log("printing value at count after inserting: ",obj[count], " and count ", count);
      count++;
    }
  }

  var newstr = "";

  for(i=0; i<count; i++){
    newstr+=obj[i];
    newstr+=" ";
  }
  return newstr;
}

uniqueStr("I am me or not me");