using FoxTube.Models;
using FoxTube.Utils;
using Newtonsoft.Json;
using System;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using Windows.Storage;
using Windows.UI.Notifications;

namespace FoxTube.Services
{
	public static class Inbox
	{
		private static readonly HttpClient client = new HttpClient();
		private static readonly ApplicationDataContainer storage = ApplicationData.Current.RoamingSettings;

		public static async void PushNew()
		{
			try
			{
				// TODO: Add backend
				HttpResponseMessage response = await client.GetAsync($"https://xfox111.net/FoxTube/Inbox?toast=true&publishedAfter={storage.Values["Inbox.lastCheck"]}&lang={Settings.Language}&appVersion={Metrics.CurrentVersion}");
				storage.Values["Inbox.lastCheck"] = DateTime.UtcNow.Ticks;

				if (response.StatusCode == HttpStatusCode.NoContent)
					return;

				string[] toasts = JsonConvert.DeserializeObject<string[]>(await response.Content.ReadAsStringAsync());

				foreach (string toast in toasts)
					ToastNotificationManager.CreateToastNotifier().Show(new ToastNotification(toast.ToXml()));
			}
			catch (Exception e)
			{
				Metrics.SendReport(new Exception("Unable to retrieve toast notifications", e));
			}
		}

		public static async Task<InboxItem[]> GetMessages()
		{
			try
			{
				// TODO: Add backend
				HttpResponseMessage response = await client.GetAsync($"https://xfox111.net/API/FoxTube/Inbox?lang={Settings.Language}&currentVersion={Metrics.CurrentVersion}");

				if (response.StatusCode == HttpStatusCode.NoContent)
					return new InboxItem[0];

				return JsonConvert.DeserializeObject<InboxItem[]>(await response.Content.ReadAsStringAsync());
			}
			catch (Exception e)
			{
				Metrics.SendReport(new Exception("Unable to retrieve inbox messages", e));

				return new InboxItem[0];
			}
		}

		/// <summary>
		/// Fires toast notification with the last changelog content
		/// </summary>
		public static async void PushChangelog()
		{
			try
			{
				// TODO: Add backend
				Settings.LastReviewedVersion = Metrics.CurrentVersion;

				HttpResponseMessage response = await client.GetAsync($"https://xfox111.net/API/FoxTube/Changelog?lang={Settings.Language}&version={Metrics.CurrentVersion}");

				if (response.StatusCode == HttpStatusCode.NoContent)
					return;

				ToastNotificationManager.CreateToastNotifier().Show(new ToastNotification((await response.Content.ReadAsStringAsync()).ToXml()));
			}
			catch (Exception e)
			{
				Metrics.SendReport(new Exception("Unable to retrieve changelog", e));
			}
		}
	}
}