FoxTube/FoxTube.Core/Services/History.cs

using Newtonsoft.Json;
using System.Collections.Generic;
using System.Linq;
using Windows.Storage;

namespace FoxTube.Services
{
	public static class History
	{
		static readonly ApplicationDataContainer storage = ApplicationData.Current.RoamingSettings;

		public static string[] SearchHistory
		{
			get => JsonConvert.DeserializeObject<string[]>(storage.Values["SearchHistory"] as string) ?? new string[0];
			private set => JsonConvert.SerializeObject(value);
		}

		public static void AddSearchHistoryEntry(string term)
		{
			List<string> history = SearchHistory.ToList();
			history.Insert(0, term);

			if (history.Count > 5)
				history.RemoveRange(5, history.Count - 5);

			SearchHistory = history.ToArray();
		}

		public static void ClearSearchHistory() =>
			SearchHistory = new string[0];
	}
}