private void AddExistingAward(int user_id)
{
int records_on_page = 10;
IAward[] awards = logic.GetAllAwards();
int max_page = awards.Length / records_on_page;
if (awards.Length % records_on_page != 0)
{
max_page++;
}
int current_page = 1;
while (true)
{
Console.Clear();
Console.WriteLine($"DataBase contains {awards.Length} awards.");
Console.WriteLine($"Page {current_page}/{max_page}");
int last_index_of_page = current_page * records_on_page;
if (last_index_of_page > awards.Length)
{
last_index_of_page = awards.Length;
}
int records_counter = 0;
for (int i = (current_page - 1) * records_on_page;
i >= 0 && i < last_index_of_page;
i++, records_counter++)
{
Console.WriteLine($"{records_counter}) {awards[i].Title}");
}
Console.WriteLine("Choise your action:");
Console.WriteLine("0-9) Add award");
if (current_page < max_page)
{
Console.WriteLine("n) Next page");
}
if (current_page > 1)
{
Console.WriteLine("p) Prev page");
}
Console.WriteLine("e) Back");
Console.Write("> ");
char input = '\0';
while (true)
{
while (!char.TryParse(Console.ReadLine(), out input))
{
Console.WriteLine("Input error!");
Console.WriteLine("Enter character.");
Console.Write("> ");
continue;
}
if ((input < '0' || input > '9') &&
input != 'n' && input != 'p' && input != 'e')
{
Console.WriteLine("Input error!");
Console.WriteLine("Enter 0-9, n, p or e.");
Console.Write("> ");
continue;
}
if (input >= '0' && input <= '9')
{
if (awards.Length == 0)
{
Console.WriteLine("Input error!");
Console.WriteLine($"DataBase have not awards.");
Console.Write("> ");
continue;
}
else
{
if (input >= records_counter + '0')
{
Console.WriteLine("Input error!");
Console.WriteLine($"Last record is {records_counter}.");
Console.Write("> ");
continue;
}
}
}
if (input == 'n' && current_page >= max_page)
{
Console.WriteLine("Input error!");
Console.WriteLine($"Have not next page");
Console.Write("> ");
continue;
}
if (input == 'p' && current_page <= 1)
{
Console.WriteLine("Input error!");
Console.WriteLine($"Have not prev page");
Console.Write("> ");
continue;
}
break;
}
if (input >= '0' && input <= '9')
{
int index = (input - '0') + (current_page - 1) * records_on_page;
logic.AddAwardToUser(user_id, index);
break;
}
switch (input)
{
case 'n':
current_page++;
break;
case 'p':
current_page--;
break;
case 'e': return;
}
}
}