using FoxTube.Models;
using System.Linq;
using System.Collections.Generic;
using System.Net.Http;
using System.Threading.Tasks;
using System.Xml;

namespace FoxTube.Services
{
	public static class Search
	{
		public static async Task<List<SearchSuggestion>> GetSuggestions(string term)
		{
			List<SearchSuggestion> suggestions = new List<SearchSuggestion>();

			try
			{
				using HttpClient client = new HttpClient();
				string results = await client.GetStringAsync($"http://suggestqueries.google.com/complete/search?ds=yt&client=toolbar&q={term}&hl={Settings.RelevanceLanguage}");
				XmlDocument doc = new XmlDocument();
				doc.LoadXml(results);

				for (int i = 0; i < doc["toplevel"].ChildNodes.Count && i < 5; i++)
					suggestions.Add(new SearchSuggestion(doc["toplevel"].ChildNodes[i]["suggestion"].GetAttribute("data")));

				// Appending search history
				suggestions.AddRange(History.SearchHistory.Select(i => new SearchSuggestion(i, true)));

				return suggestions;
			}
			catch { }

			return suggestions;
		}
	}
}