class_name PlayerController
extends Node

@export var current_controlled : Boat:
	set(value):
		if current_controlled != null and current_controlled != value:
			current_controlled.desired_throttle = 0.0
			current_controlled.steer_input = 0.0
			current_controlled.fire_intents.clear()
		current_controlled = value
		if is_node_ready():
			if current_controlled != null:
				desired_throttle = current_controlled.throttle
			_possess()

@export var world_manager : WorldManager:
	set(value):
		world_manager = value
		if is_node_ready():
			_possess()

@export var camera_rig : CameraRig:
	set(value):
		camera_rig = value
		if is_node_ready():
			_possess()

@export var hud : Hud:
	set(value):
		hud = value
		if is_node_ready():
			_possess()

@export var throttle_ramp := 0.5

var desired_throttle := 0.0


func _ready() -> void:
	if current_controlled != null: # Only happens on intial loading if boat already moves
		desired_throttle = current_controlled.throttle
	_possess()

func _process(delta: float) -> void:
	if current_controlled == null:
		return

	if Input.is_action_pressed("throttle_increase"):
		desired_throttle = move_toward(desired_throttle, 1, throttle_ramp * delta)
	elif Input.is_action_pressed("throttle_decrease"):
		desired_throttle = move_toward(desired_throttle, -1, throttle_ramp * delta)
	elif Input.is_action_pressed("throttle_stop"):
		desired_throttle = 0.0
		
	var steer_input := Input.get_axis("rudder_right", "rudder_left")

	current_controlled.desired_throttle = desired_throttle
	current_controlled.steer_input = steer_input
	
	current_controlled.fire_intents[0] = Input.is_action_pressed("fire")
	
func _unhandled_input(event: InputEvent) -> void:
	if event.is_action_pressed(&"debug_possess_next"):
		_possess_next()

func _possess() -> void:
	if camera_rig != null:
		camera_rig.target = current_controlled
	if world_manager != null:
		world_manager.focus = current_controlled
	if hud != null:
		hud.boat = current_controlled
		
func _possess_next() -> void:
	var boats := get_tree().get_nodes_in_group(&"boats")
	if boats.is_empty():
		current_controlled = null
		return
	var idx := boats.find(current_controlled)
	current_controlled = boats[(idx + 1) % boats.size()]