@using System
@using Sandbox;
@using Sandbox.UI;
@inherits PanelComponent
@implements Component.INetworkListener
@namespace Facepunch.BombRoyale

<root class=@(IsOpen ? "open" : "closed")>
	<div @ref="EntryCanvas" class="entries"></div>

	<div class="input">
		<textentry @onblur=@OnEntryBlur @onsubmit=@OnEntrySubmit @ref="Entry"></textentry>
	</div>
</root>

@code
{
	private static Chat Instance { get; set; }
	private TextEntry Entry { get; set; }
	private Panel EntryCanvas { get; set; }
	private bool IsOpen { get; set; }

	[Rpc.Broadcast]
	public static void AddPlayerEvent( string eventName, string name, Color color, string message )
	{
		if ( !Instance.IsValid() ) return;
		Instance.AddNamedMessage( name, color, message, eventName );
	}
	
	public void AddNamedMessage( string name, Color color, string message, string className = null )
	{
		var entry = new ChatboxEntry()
		{
			Name = name,
			Color = color,
			Message = message
		};

		if ( !string.IsNullOrEmpty( className ) )
		{
			entry.AddClass( className );
		}

		if ( string.IsNullOrEmpty( name ) )
		{
			entry.AddClass( "no-name" );
		}

		EntryCanvas.AddChild( entry );
	}

	public void AddMessage( string message, string className = null )
	{
		var entry = new ChatboxEntry()
		{
			Message = message
		};

		if ( !string.IsNullOrEmpty( className ) )
		{
			entry.AddClass( className );
		}

		entry.AddClass( "no-name" );

		EntryCanvas.AddChild( entry );
	}

	protected override void OnAwake()
	{
		Instance = this;
		base.OnAwake();
	}

	protected override void OnUpdate()
	{
		if ( !Entry.IsValid() ) return;

		EntryCanvas.PreferScrollToBottom = true;
		Panel.AcceptsFocus = false;

		if ( !IsOpen && Input.Pressed( "chat" ) )
		{
			Entry.Focus();
			IsOpen = true;
		}
	}
	
	private void OnEntrySubmit()
	{
		if ( !string.IsNullOrWhiteSpace( Entry.Text ) )
		{
			SendText( Sandbox.Utility.Steam.PersonaName, Entry.Text.Trim() );
		}
	}
	
	private void OnEntryBlur()
	{
		Entry.Text = string.Empty;
		IsOpen = false;
	}

	[Rpc.Broadcast]
	private static void SendText( string author, string message )
	{
		Instance?.AddNamedMessage( author, Color.Cyan, message );
	}

	void INetworkListener.OnConnected( Connection channel )
	{
		if ( IsProxy ) return;

		SendText( "🛎️", $"{channel.DisplayName} has joined the game" );
	}

	void INetworkListener.OnDisconnected( Connection channel )
	{
		if ( IsProxy ) return;

		SendText(  "💨", $"{channel.DisplayName} has left the game" );
	}
	
	protected override int BuildHash()
	{
		return HashCode.Combine( IsOpen );
	}
}