using System;
using System.Collections.Generic;

namespace BlubbFish.Utils.IoT.Connector {
  public abstract class AUserBackend {
    protected Dictionary<String, String> settings;

    public abstract event TelegramMessage MessageIncomming;
    public abstract event TelegramMessage MessageSending;
    public delegate void TelegramMessage(Object sender, UserMessageEventArgs e);

    public AUserBackend(Dictionary<String, String> settings) {
      this.settings = settings;
    }

    public static AUserBackend GetInstance(Dictionary<String, String> settings) {
      String object_sensor = "BlubbFish.Utils.IoT.Connector.User." + Char.ToUpper(settings["type"][0]) + settings["type"].Substring(1).ToLower();
      Type t = null;
      try {
        t = Type.GetType(object_sensor, true);
      } catch (TypeLoadException) {
        throw new ArgumentException("settings.ini: " + settings["type"] + " is not a UserBackend");
      }
      return (AUserBackend)t.GetConstructor(new Type[] { typeof(Dictionary<String, String>) }).Invoke(new Object[] { settings });
    }

    public abstract void Send(String message);
    public abstract void Send(String message, String[] buttons);

    public abstract void Dispose();
  }
}