using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.Json;
using System.Text.Json.Serialization;
using System.Threading.Tasks;
using gehGassiApp.Domain.Common;

namespace gehGassiApp.Domain.Pushnotifications
{
	/// <summary>
	/// Hilfsklasse zum abspeichern der referenz-Info für Server PushNotifications
	/// </summary>
	public class ServerPushNotificationInfo
	{
		/// <summary>
		/// Title der Nachricht
		/// </summary>
		[JsonPropertyName("title")]
		public string Title { get; set; }

		/// <summary>
		/// Inhalt der Nachricht
		/// </summary>
		[JsonPropertyName("body")]
		public string Body { get; set; }

		/// <summary>
		/// Daten der Nachricht
		/// </summary>
		[JsonPropertyName("data")]
		public string Data { get; set; }

		/// <summary>
		/// Typ des Appusers damit man bei jenen die beides sind auch unterscheiden kann
		/// </summary>
		[JsonPropertyName("appMode")]
		[JsonConverter(typeof(AppModeConverter))]
		public AppMode? AppMode { get; set; }

		/// <summary>
		/// Id des verknüpften Objektes
		/// </summary>
		[JsonPropertyName("key")]
		public string Key { get; set; }

		/// <summary>
		/// Typ des Objektes das verbunden wurde
		/// </summary>
		[JsonPropertyName("table")]
		public string Table { get; set; }

		/// <summary>
		/// Typ der Systemnachricht
		/// </summary>
		[JsonPropertyName("type")]
		[JsonConverter(typeof(SystemMessageTypeConverter))]
		public SystemMessageType? Type { get; set; }
	}

	public class SystemMessageTypeConverter : JsonConverter<SystemMessageType?>
	{
		public override SystemMessageType? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
		{
			try
			{
				var value = reader.GetInt32();
				return (SystemMessageType)value;
			}
			catch (Exception ex)
			{
				System.Diagnostics.Debug.WriteLine(ex.Message);
			}

			try
			{
				var stringVal = reader.GetString();
				if (string.IsNullOrEmpty(stringVal))
				{
					return null;
				}
				var intVal = int.Parse(stringVal);
				return (SystemMessageType)intVal;
			}
			catch (Exception ex)
			{
				System.Diagnostics.Debug.WriteLine(ex.Message);
			}

			return null;
		}

		public override void Write(Utf8JsonWriter writer, SystemMessageType? value, JsonSerializerOptions options)
		{
			if (value == null)
			{
				writer.WriteNullValue();
				return;
			}

			var intVal = (int)value;
            writer.WriteNumberValue(intVal);
		}
	}

	public class AppModeConverter : JsonConverter<AppMode?>
	{
		public override AppMode? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
		{
			try
			{
				var value = reader.GetInt32();
				return (AppMode)value;
			}
			catch (Exception ex)
			{
				System.Diagnostics.Debug.WriteLine(ex.Message);
			}

			try
			{
				var stringVal = reader.GetString();
				if (string.IsNullOrEmpty(stringVal))
				{
					return null;
				}

				var intVal = int.Parse(stringVal);
				return (AppMode)intVal;
			}
			catch (Exception ex)
			{
				System.Diagnostics.Debug.WriteLine(ex.Message);
			}

			return null;
		}

		public override void Write(Utf8JsonWriter writer, AppMode? value, JsonSerializerOptions options)
		{
			if (value == null)
			{
				writer.WriteNullValue();
				return;
			}

			var intVal = (int)value;
            writer.WriteNumberValue(intVal);
		}
	}
}