extends GraphNode
class_name DeckNodeRendererGraphNode

## [GraphNode] based renderer of [DeckNode]

## Stores the data container [DeckNode] that the visuals of this [DeckNodeRendererGraphNode]
## are based off.
var node: DeckNode

## Setups up all the properties based off [member node].  Including looping through
## [method DeckNode.get_all_ports()] and setting up all the descriptors.
func _ready() -> void:
	title = node.name
	node.position_updated.connect(_on_node_position_updated)
	#node.port_added.connect(_on_node_port_added)
	#node.port_removed.connect(_on_node_port_removed)
	node.ports_updated.connect(_on_node_ports_updated)
	for port in node.get_all_ports():
		update_port(port)

## Connected to [signal GraphElement.position_offset_updated] and updates the
## [member node]s properties
func _on_position_offset_changed() -> void:
	node.position.x = position_offset.x
	node.position.y = position_offset.y

## Connected to [member node]s [signal position_updated] to keep parity with the
## data position.
func _on_node_position_updated(new_position: Dictionary) -> void:
	position_offset.x = new_position.x
	position_offset.y = new_position.y

## Connected to [member node]s [signal port_added] handles setting up the specified
## [member Port.descriptor] with it's required nodes/signals etc. + adding the port
## using [method GraphNode.set_slot]
func _on_node_port_added(port_idx: int) -> void:
	var port := node.get_all_ports()[port_idx]
	update_port(port)


## Connected to [member node]s [signal port_removed], queue_frees the [Node]
## used for the descriptor, as well as using [method GraphNode.set_slot] to remove the slot.
func _on_node_port_removed(port_idx: int) -> void:
	set_slot(
		port_idx,
		false,
		0,
		Color.WHITE,
		false,
		0,
		Color.WHITE,
	)

	get_child(port_idx).queue_free()

## Connected to [member node]s [signal ports_updated].  Remakes all of the ports
## + their descriptors whenever this is received to allow keeping the Renderers ports up to date.
func _on_node_ports_updated() -> void:
	clear_all_slots()
	for c in get_children():
		c.queue_free()

	for port in node.get_all_ports():
		update_port(port)


func update_port(port: Port) -> void:
	var descriptor_split := port.descriptor.split(":")
	match descriptor_split[0]:
		"button":
			var button := Button.new()
			add_child(button)
			button.text = port.label
			if port.port_type == DeckNode.PortType.OUTPUT:
				button.pressed.connect(
					func():
						node.send(port.index_of_type, true)
				)
			#elif port.port_type == DeckNode.PortType.INPUT:
			else:
				button.pressed.connect(
					func():
						node._receive(port.index_of_type, true)
				)
		"field":
			var line_edit := LineEdit.new()
			add_child(line_edit)
			if port.value:
				line_edit.text = str(port.value)
			line_edit.placeholder_text = port.label
			port.value_callback = line_edit.get_text
			line_edit.text_changed.connect(port.set_value)
		"singlechoice":
			var box := OptionButton.new()
			for item in descriptor_split.slice(1):
				box.add_item(item)
			add_child(box)
			port.value_callback = func(): return box.get_item_text(box.get_selected_id())
			if port.type == DeckType.Types.STRING:
				box.item_selected.connect(
					func(id: int):
						port.set_value.call(box.get_item_text(box.get_selected_id()))
				)

		_:
			var label := Label.new()
			add_child(label)
			label.text = port.label

	set_slot(
		port.index,
		port.port_type == DeckNode.PortType.INPUT,
		port.type,
		Color.WHITE,
		port.port_type == DeckNode.PortType.OUTPUT,
		port.type,
		Color.WHITE,
	)