/*
  User will be prompt for their name,
  save in localStorage and displaying the user name on every webpage.
  In addition, this program would retrieve user current time
  and displaying a person greetings to them.
*/

var today = new Date();//getting date
var currentHour = today.getHours(); //getting hour
var greetings = ["Good Afternoon", "Good Evening", "Good Morning"]; //declaring array

if (localStorage.getItem("userName") == null) //checking condition
{
  var localStorageName = prompt('Please enter your first name'); //declaring and assigning
  if(localStorageName == null) //checking if condition is true
  {
    localStorage.setItem("userName", ""); //setting userName
  }
  else //if nothing else was done
  {
    localStorage.setItem("userName", localStorageName); //setting userName
  }
}

if(parseInt(currentHour) >= 12 && parseInt(currentHour) <= 18) //checking condition
{
  if (localStorage.userName == "") //checking condition
  {
    document.write("<h1>" + greetings[0] + "! Welcome to Water is Life</h1>");//printing
  }
  else //if nothing else was done
  {
    document.write("<h1>" + greetings[0] + " " + localStorage.userName +
    "! Welcome to Water is Life</h1>");//printing
  }
}
else if(parseInt(currentHour) > 18 && parseInt(currentHour) <= 24) //checking condition
{
  if (localStorage.userName == "") //checking condition
  {
    document.write("<h1>" + greetings[1] + "! Welcome to Water is Life</h1>");//printing
  }
  else //if nothing else was done
  {
    document.write("<h1>" + greetings[1] + " " + localStorage.userName +
    "! Welcome to Water is Life</h1>");//printing
  }

}
else//if nothing is done
{
  if (localStorage.userName == "") //checking condition
  {
    document.write("<h1>" + greetings[2] + "! Welcome to Water is Life</h1>");//printing
  }
  else//if nothing is done
  {
    document.write("<h1>" + greetings[2] + " " + localStorage.userName +
    "! Welcome to Water is Life</h1>");//printing
  }
}