class_name StateBuild
extends State


static var current_builder_element: BuilderElement

@export var hud: HUD
@export var selection_manager: SelectionManager
@export var tower_manager: TowerManager


func _ready() -> void:
	Client.placed_tower.connect(_on_placed_tower)


func _state_enter():
	%BuildGrid.visible = true
	hud.tower_configurations_container.visible = true
	
	for tower: Tower in selection_manager.get_nodes().duplicate():
		tower.is_selected = false


func _state_exit():
	%BuildGrid.visible = false
	hud.tower_configurations_container.visible = false


func _input(event: InputEvent):
	if event.is_action_pressed("builder_tower_select"):
		if current_builder_element:
			get_viewport().set_input_as_handled()
			
			if current_builder_element.can_build():
				var placed_tower = current_builder_element.element.instantiate() as Tower
				
				placed_tower.global_position = current_builder_element.global_position
				
				tower_manager.place_tower(placed_tower)
				
				if not Input.is_action_pressed("builder_tower_place_keep"):
					current_builder_element.queue_free()
					current_builder_element = null
		
	if event.is_action_pressed("build_mode_start"):
		get_viewport().set_input_as_handled()
		
		if current_builder_element:
			current_builder_element.queue_free()
			current_builder_element = null
		
		state_manager.set_state(state_manager.state_default)
	
	if event.is_action_pressed("builder_cancel") and current_builder_element:
		get_viewport().set_input_as_handled()
		
		current_builder_element.queue_free()
		current_builder_element = null


func _unhandled_input(event: InputEvent) -> void:
	if event.is_action_pressed("select"):
		state_manager.set_state(state_manager.state_default)


func _on_placed_tower(tower: Tower) -> void:
	tower.selected_secondary.connect(_on_tower_selected_secondary.bind(tower))


func _on_tower_selected_secondary(tower: Tower) -> void:
	if state_manager.current_state != self:
		return
	
	if Input.is_action_just_pressed("builder_cancel"):
		Client.remove_tower(tower)