extends Node2D

@export var area : Area2D
@export var area_detect : Area2D
@export var line : Line2D
@export var grapple_speed : float

var thing : Node2D = null

var player_movement : PlayerMovement

var just_released : bool = false

func _ready() -> void:
	player_movement = get_node("../../PlayerMovement")

func _input(event: InputEvent) -> void:
	if event is InputEventMouseMotion:
		var delta_pos = event.position - get_global_transform_with_canvas().origin
		area_detect.rotation = atan2(delta_pos.y, delta_pos.x)
	if Input.is_action_just_pressed("action_secondary") && event is InputEventMouseButton:
		var delta_pos = event.position - get_global_transform_with_canvas().origin
		area.rotation = atan2(delta_pos.y, delta_pos.x)
		area.monitoring = true
	if Input.is_action_just_released("action_secondary"):
		print("hi")
		area.monitoring = false
		thing = null

var init_delta : Vector2
var x_vel

func _process(_delta: float) -> void:
	if !thing:
		if just_released:
			player_movement.grapple_x_vel_aft = player_movement.speed 
		player_movement.grapple_velocity = Vector2.ZERO
		line.points[1] = Vector2.ZERO
		x_vel = null
		just_released = false
		return

	area.monitoring = false
	
	var delta_pos = thing.global_position - global_position
	print(delta_pos.length(), " ", delta_pos.y, " ", delta_pos.x)

	line.points[1] = delta_pos

	var normalised = delta_pos.normalized()

	if !x_vel: x_vel = normalised.x

	if x_vel > 0.3:
		x_vel = .9
	elif x_vel < -0.3:
		x_vel = -.9
		
	if delta_pos.length() < 100 || ((x_vel > 0 && delta_pos.x < 0) || (x_vel < 0 && delta_pos.x > 0)):
		just_released = true
		thing = null

	player_movement.grapple_velocity = Vector2(x_vel, normalised.y * 1.1) * grapple_speed

func _on_area_2d_body_entered(body: Node2D) -> void:
	print("grapple", body)
	thing = body
	area.monitoring = false
	init_delta = thing.global_position - global_position

func _on_detect_area_2d_body_exited(body:Node2D) -> void:
	if body is Grappleable:
		body.dehighlight()

func _on_detect_area_2d_body_entered(body:Node2D) -> void:
	if body is Grappleable:
		body.highlight()