/// <summary>
/// This function is used to get a random child from a list, for which the secret santa will buy a gift
/// </summary>
/// <param name="persons">A list containing all the persons</param>
/// <param name="person">The person which is the Secret Santa</param>
/// <param name="theyAlreadyHaveGifts">A list containing all the persons which already have a secret santa</param>
/// <returns>A lucky child, "chosen" by the Secret Santa</returns>
private Person findSecretSanta(List<Person> persons,Person person,List<Person> theyAlreadyHaveGifts)
{
/*
var res = from a in persons
where a.FirstName != person.FirstName
select a;
List<Person> pers=res.ToList<Person>();
*/
Person toReturn = new Person();
toReturn.FirstName =person.FirstName;
toReturn.SecondName = person.SecondName;
while (toReturn.FirstName == person.FirstName || theyAlreadyHaveGifts.Contains(toReturn))
{
Random rnd = new Random();
int no = rnd.Next(0, persons.Count());
toReturn=persons[no];
}
return toReturn;
}
private void Form1_Load(object sender, EventArgs e)
{
//List which will contain all the persons from the file
List<Person> personArray = new List<Person>();
//List containing all the persons which already have a gift
List<Person> hasAGift = new List<Person>();
//Read all the persons from the file and save them in a list
StreamReader readFile = new StreamReader("Fisier.txt");
var line = "";
while (line != null)
{
line = readFile.ReadLine();
if (line == null)
break;
var names = line.Split(' ');
Person newPerson = new Person();
newPerson.FirstName = names[0];
newPerson.SecondName = names[1];
personArray.Add(newPerson);
t1.AppendText(line + "\r\n");
}
/*
var result=from person in personArray
select new {Santa=findSecretSanta(personArray,person),person};
*/
foreach (Person person in personArray)
{
Person isGoodChild = findSecretSanta(personArray, person,hasAGift);
//Add the chosen child in the "lucky" list
hasAGift.Add(isGoodChild);
t2.AppendText(person.ToString() + " -> " + isGoodChild.ToString());
t2.AppendText("\r\n");
}
}