using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using Facepunch.Steamworks.Data;

namespace Facepunch.Steamworks
{
	/// <summary>
	/// Functions that provide information about Steam Remote Play sessions, streaming your game content to another computer or to a Steam Link app or hardware.
	/// </summary>
	public class SteamRemotePlay : SteamClientClass<SteamRemotePlay>
	{
		internal static ISteamRemotePlay Internal => Interface as ISteamRemotePlay;

		internal override void InitializeInterface( bool server )
		{
			SetInterface( server, new ISteamRemotePlay( server ) );

			InstallEvents( server );
		}

		internal void InstallEvents( bool server )
		{
			Dispatch.Install<SteamRemotePlaySessionConnected_t>( x => OnSessionConnected?.Invoke( x.SessionID ), server );
			Dispatch.Install<SteamRemotePlaySessionDisconnected_t>( x => OnSessionDisconnected?.Invoke( x.SessionID ), server );
		}
		
		/// <summary>
		/// Called when a session is connected
		/// </summary>
		public static event Action<RemotePlaySession> OnSessionConnected;

		/// <summary>
		/// Called when a session becomes disconnected
		/// </summary>
		public static event Action<RemotePlaySession> OnSessionDisconnected;

		/// <summary>
		/// Get the number of currently connected Steam Remote Play sessions
		/// </summary>
		public static int SessionCount => (int) Internal.GetSessionCount();

		/// <summary>
		/// Get the currently connected Steam Remote Play session ID at the specified index.
		/// IsValid will return false if it's out of bounds
		/// </summary>
		public static RemotePlaySession GetSession( int index ) => (RemotePlaySession) Internal.GetSessionID( index ).Value;


		/// <summary>
		/// Invite a friend to Remote Play Together
		/// This returns false if the invite can't be sent
		/// </summary>
		public static bool SendInvite( SteamId steamid ) => Internal.BSendRemotePlayTogetherInvite( steamid );
	}
}