using System;
using System.Collections.Generic;
using System.Linq;

namespace CPF.ReoGrid
{
	public class AutoFillSequence
	{
		public AutoFillSequence(IList<object> values)
		{
			bool flag = values == null || values.Count == 0;
			if (flag)
			{
				throw new ArgumentException("AutoFillSequence requires at least one value.");
			}
			int i = 0;
			IAutoFillSectionEntry entry = AutoFillSectionEntryFactory.Create(values[i++]);
			AutoFillSection autoFillSection = new AutoFillSection(entry);
			this.sections.Add(autoFillSection);
			while (i < values.Count)
			{
				entry = AutoFillSectionEntryFactory.Create(values[i++]);
				bool flag2 = !autoFillSection.TryAdd(entry);
				if (flag2)
				{
					autoFillSection = new AutoFillSection(entry);
					this.sections.Add(autoFillSection);
				}
			}
		}

		public object[] Extrapolate(int count)
		{
			List<object> list = new List<object>(count);
			int num = 0;
			while (list.Count < count)
			{
				num++;
				foreach (AutoFillSection autoFillSection in this.sections)
				{
					object[] values = autoFillSection.GetValues(num);
					list.AddRange(values.Take(count - list.Count));
				}
			}
			return list.ToArray();
		}

		private readonly List<AutoFillSection> sections = new List<AutoFillSection>();
	}
}