using System;
using Serilog.Events;
using TINK.Services.BluetoothLock;
using TINK.Services.CopriApi.ServerUris;
using TINK.Services.Geolocation;
using TINK.Settings;
using TINK.ViewModel.Map;
using TINK.ViewModel.Settings;


namespace TINK.Model.Settings
{
	/// <summary> Holds settings which are persisted.</summary>
	public class Settings
	{
		public const LogEventLevel DEFAULTLOGGINLEVEL = LogEventLevel.Error;

		public const bool DEFAULTREPOTLEVEL = false;

		/// <summary> Gets the type of the default geolocation service. </summary>
		/// <remarks> Switched from GeolocationService (GeolocationAccuracyMediumService) to GeolocationAccuracyHighService in app version 3.0.290.</remarks>
		public static Type DefaultLocationService => typeof(GeolocationAccuracyHighService);

		// Default value of the expires after entry. Controls the expiration time of the cache values.
		private TimeSpan DEFAULTEXPIRESAFTER = TimeSpan.FromSeconds(1);

		/// <summary> Constructs settings object. </summary>
		/// <param name="groupFilterMapPage">filter which is applied on the map view. Either TINK or Konrad stations are displayed.</param>
		/// <param name="groupFilterSettings"></param>
		/// <param name="startupSettings">Settings determining the startup behavior of the app.</param>
		/// <param name="activeUri"></param>
		/// <param name="pollingParameters"></param>
		/// <param name="minimumLogEventLevel">Minimum logging level to be applied.</param>
		/// <param name="isReportLevelVerbose">True if logging level is verbose.</param>
		/// <param name="expiresAfter">Holds the expires after value.</param>
		/// <param name="activeLockService">Gets the name of the lock service to use.</param>
		/// <param name="connectTimeout">Timeout to apply when connecting to bluetooth lock</param>
		/// <param name="activeTheme">Full class name of active app theme.</param>
		public Settings(
			IGroupFilterMapPage groupFilterMapPage = null,
			IGroupFilterSettings groupFilterSettings = null,
			IStartupSettings startupSettings = null,
			Uri activeUri = null,
			PollingParameters pollingParameters = null,
			LogEventLevel? minimumLogEventLevel = null,
			bool? isReportLevelVerbose = null,
			TimeSpan? expiresAfter = null,
			string activeLockService = null,
			TimeSpan? connectTimeout = null,
			string activeGeolocationService = null,
			bool? centerMapToCurrentLocation = null,
			Xamarin.Forms.GoogleMaps.MapSpan mapSpan = null,
			bool? logToExternalFolder = null,
			bool? isSiteCachingOn = null,
			string activeTheme = null)
		{
			GroupFilterMapPage = groupFilterMapPage ?? new GroupFilterMapPage(); // Default behavior: No filtering.
			GroupFilterSettings = groupFilterSettings ?? new GroupFilterSettings(); // Default behavior: No filtering.
			StartupSettings = startupSettings ?? new StartupSettings();
			ActiveUri = GetActiveUri(activeUri);
			PollingParameters = pollingParameters ?? PollingParameters.Default;
			MinimumLogEventLevel = minimumLogEventLevel ?? DEFAULTLOGGINLEVEL;
			IsReportLevelVerbose = isReportLevelVerbose ?? DEFAULTREPOTLEVEL;
			ExpiresAfter = expiresAfter ?? DEFAULTEXPIRESAFTER;
			ActiveLockService = activeLockService ?? LocksServicesContainerMutable.DefaultLocksservice;
			ConnectTimeout = connectTimeout ?? new TimeSpan(0, 0, TimeOutProvider.DEFAULT_BLUETOOTHCONNECT_TIMEOUTSECONDS); // Try one sec. to connect. 
			ActiveGeolocationService = activeGeolocationService ?? DefaultLocationService.FullName;
			CenterMapToCurrentLocation = centerMapToCurrentLocation ?? GetCenterMapToCurrentLocation(activeUri);
			MapSpan = mapSpan;
			LogToExternalFolder = logToExternalFolder ?? false;
			IsSiteCachingOn = isSiteCachingOn ?? true;
			ActiveTheme = activeTheme ?? typeof(Themes.ShareeBike).Name;
		}

		/// <summary> Holds the filter which is applied on the map view. Either TINK or Konrad stations are displayed. </summary>
		public IGroupFilterMapPage GroupFilterMapPage { get; }

		/// <summary> Holds the filters loaded from settings. </summary>
		public IGroupFilterSettings GroupFilterSettings { get; }

		/// <summary> Holds the settings determining app startup behavior. </summary>
		public IStartupSettings StartupSettings { get; }

		/// <summary> Holds the uri to connect to. </summary>
		public Uri ActiveUri { get; }

		/// <summary> Holds the polling parameters. </summary>
		public PollingParameters PollingParameters { get; }

		/// <summary> Gets the minimum logging level. </summary>
		public LogEventLevel MinimumLogEventLevel { get; }

		/// <summary> Gets the expires after value.</summary>
		public TimeSpan ExpiresAfter { get; }

		/// <summary> Gets the lock service to use.</summary>
		public string ActiveLockService { get; private set; }

		/// <summary> Timeout to apply when connecting to bluetooth lock.</summary>
		public TimeSpan ConnectTimeout { get; }

		/// <summary> Gets the geolocation service to use.</summary>
		public string ActiveGeolocationService { get; }

		/// <summary> True if map is centered to current position, false if not to center map.</summary>
		public bool CenterMapToCurrentLocation { get; }

		/// <summary> Holds the map area to display. </summary>
		public Xamarin.Forms.GoogleMaps.MapSpan MapSpan { get; }

		public bool LogToExternalFolder { get; }

		public bool IsSiteCachingOn { get; }

		public string ActiveTheme { get; }

		/// <summary> Gets a value indicating whether reporting level is verbose or not.</summary>
		public bool IsReportLevelVerbose { get; }

		public static Uri GetActiveUri(Uri activeUri) => activeUri ?? Services.CopriApi.ServerUris.CopriServerUriList.DefaultActiveUri;

		public static bool GetCenterMapToCurrentLocation(Uri activeUri)
		{
			// TINK does not require access to current location. Deactivate center map to current location for this reason. 
			return !GetActiveUri(activeUri).Host.GetIsCopri();
		}
	}
}