@icon("res://assets/icons/player.svg")
#@tool
class_name Player
extends CharacterBody2D

## signals
signal turn_finished

## export variables
@export var attributes: PlayerAttributes ## The attributes resource that defines the player's abilities, vitals etc.

## regular variables
var is_active: bool: set = set_active
var player_label_offset: Vector2

## 'onready' variables
## child nodes
@onready var player_camera: Camera2D = $PlayerCamera
@onready var player_label: PlayerLabel = $PlayerLabel
@onready var player_nav: NavigationAgent2D = $PlayerNav
@onready var nav_target: Sprite2D = $NavTarget
@onready var player_sprite: Sprite2D = $PlayerSprite
@onready var player_ui: CanvasLayer = $PlayerUI
@onready var end_turn_button: Button = %EndTurnButton

func _ready() -> void:
	## signals
	end_turn_button.connect("button_down", end_turn)
	player_nav.connect("velocity_computed", on_velocity_computed)
	
	is_active = false
	
	if attributes:
		player_label.player_name = attributes.player_name
		player_label.player_number = attributes.player_number
		player_label.player_position = attributes.player_position
		player_sprite.texture = attributes.player_texture
	
	player_label_offset = player_label.position

func _process(_delta: float) -> void:
	player_label.global_position = global_position + player_label_offset
	if is_active:
		nav_target.global_position = get_global_mouse_position()

func _physics_process(delta: float) -> void:
	var desired_velocity: Vector2 = global_position.direction_to(player_nav.get_next_path_position()) * attributes.speed ## TODO: this doesn't seem to affect actual movement speed
	player_nav.velocity = desired_velocity
	#if player_nav.target_position:
		#player_nav.velocity = global_position.direction_to(player_nav.get_next_path_position())
		##var movement_direction = 
		##translate(movement_direction)

func _input(event: InputEvent) -> void:
	if event.is_action_pressed("end_turn"):
		end_turn()
	if event is InputEventMouseButton and event.is_pressed() and event.button_index == 1:
		var click_position_global = get_global_mouse_position()
		print_debug("%s wants to navigate to %s" % [attributes.player_name, click_position_global])
		player_nav.target_position = click_position_global
		var target_distance = player_nav.distance_to_target()
		print_debug("That's %s pixels/cm away" % target_distance)
		look_at(player_nav.target_position)


## Setters
func set_active(active: bool) -> void:
	is_active = active
	if is_active:
		print_debug("%s says: 'My turn!'" % attributes.player_name)
		player_ui.visible = true
		player_camera.enabled = true
		player_camera.make_current()
		nav_target.visible = true
		set_process_input(true)
	else:
		print_debug("%s says: 'It's not my turn'" % attributes.player_name)
		player_ui.visible = false
		player_camera.enabled = false
		nav_target.visible = false
		set_process_input(false)

## Helper functions/signal handlers

func end_turn() -> void:
	print_debug("%s says: I'd like my turn to end." % attributes.player_name)
	is_active = false
	turn_finished.emit()

func on_velocity_computed(safe_velocity: Vector2) -> void:
	velocity = safe_velocity
	move_and_slide()