extends Node

signal connected(s:StreamPeerTCP)
signal data(data:Array)
signal disconnected
signal error

@onready var _stream: StreamPeerTCP = StreamPeerTCP.new()

var _status: StreamPeerTCP.Status = StreamPeerTCP.STATUS_NONE

func _ready() -> void:
	_status = _stream.get_status()
	self.connect_to_host("127.0.0.1",3883)

func _process(delta: float) -> void:
	_stream.poll()
	var new_status = _stream.get_status()
	if new_status != _status:
		_status = new_status
		match _status:
			_stream.STATUS_NONE:
				print("Disconnected from host.")
				emit_signal("disconnected")
			_stream.STATUS_CONNECTING:
				print("Connecting.")
			_stream.STATUS_CONNECTED:
				print("Connected.")
				emit_signal("connected",_stream.poll()
)
			_stream.STATUS_ERROR:
				print("Error with socket stream.")
				emit_signal("error")

	if _status == _stream.STATUS_CONNECTED:		
		if Input.is_action_just_pressed("ui_accept"):
			print("Sending ...")
			self.send("vrpn".to_ascii_buffer())
			
		var available_bytes: int = _stream.get_available_bytes()
		if available_bytes > 0:
			print("available bytes: ", available_bytes)
			var data: Array = _stream.get_partial_data(available_bytes)
			# Check for read error.
			if data[0] != OK:
				print("Error getting data from stream: ", data[0])
				emit_signal("error")
			else:
				emit_signal("data", data[1])

func connect_to_host(host: String, port: int) -> void:
	print("Connecting to %s:%d" % [host, port])
	# Reset status so we can tell if it changes to error again.
	_status = _stream.STATUS_NONE
	if _stream.connect_to_host(host, port) != OK:
		print("Error connecting to host.")
		emit_signal("error")

func send(data: PackedByteArray) -> bool:
	if _status != _stream.STATUS_CONNECTED:
		print("Error: Stream is not currently connected.")
		return false
	var error: int = _stream.put_data(data)
	if error != OK:
		print("Error writing to stream: ", error)
		return false
		
	return true

func _on_data(data : Array):
	var buf = PackedByteArray(data)
	var cookie = buf.get_string_from_ascii()
	print("Data\t",cookie) # Replace with function body.
	self.send(buf)
	
func _on_connected(s : StreamPeerTCP):
	print("Connected to",s.get_connected_host()) # Replace with function body.
	
func _on_disconnected():
	print("Disconnected") # Replace with function body.

func _on_error():
	print("Error") # Replace with function body.