using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Data;

namespace DM_Weight.Converter
{
    public class PaginationConverter : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            string type = values[0].ToString();

            if (!string.IsNullOrEmpty(type) && "First".Equals(type))
            {
                int CurrentPage = int.Parse(values[1].ToString());
                return CurrentPage > 1;
            }
            if (!string.IsNullOrEmpty(type) && "Prve".Equals(type))
            {
                int CurrentPage = int.Parse(values[1].ToString());
                return CurrentPage > 1;
            }
            if (!string.IsNullOrEmpty(type) && "Next".Equals(type))
            {
                int CurrentPage = int.Parse(values[1].ToString());
                int PageCount = int.Parse(values[2].ToString());
                return PageCount > CurrentPage;
            }
            if (!string.IsNullOrEmpty(type) && "End".Equals(type))
            {
                int CurrentPage = int.Parse(values[1].ToString());
                int PageCount = int.Parse(values[2].ToString());
                return PageCount > CurrentPage;
            }
            if (!string.IsNullOrEmpty(type) && "InfoText".Equals(type))
            {
                int CurrentPage = int.Parse(values[1].ToString());
                int PageCount = int.Parse(values[2].ToString());
                int PageSize = int.Parse(values[3].ToString());
                int TotalPages = int.Parse(values[4].ToString());

                return ((CurrentPage - 1) * PageSize + 1) + "-" + (CurrentPage * PageSize > TotalPages ? TotalPages : CurrentPage * PageSize) + "/" + TotalPages; ;
            }
            return false;
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}