extends PlayerState

class_name ThrowState

#@export var cancel_action : StringName = &"player_throw_cancel" #B / clic droit (cree automatiquement s'il n'existe pas)

@export var cancel_hint : Hint #cancel_throw.tres
var cancel_action : StringName: #l'action vient du Hint : une seule definition
	get: return cancel_hint.action

@export_group("Charge")
@export var charge_move_speed : float = 3.0 #vitesse de deplacement pendant que RT est maintenue
@export var charge_move_accel : float = 8.0

@export_group("Timing")
@export var windup_time : float = 0.25 #delai entre le relachement et le depart de la balle (a caler sur l'animation)
@export var recovery_time : float = 0.35 #temps de recuperation apres le lancer

var _elapsed : float = 0.0
var _released : bool = false #true des que RT est relachee (phase windup/recovery)
var _thrown : bool = false
var _pokemon : PokemonInstance = null
var _target : Variant = null #AimTarget verrouille au moment du relachement
var _free_aim_point : Vector3 = Vector3.ZERO

func _ready() -> void:
	InputRegistry.ensure(cancel_action, [InputRegistry.pad_button(JOY_BUTTON_B), InputRegistry.mouse(MOUSE_BUTTON_RIGHT)])

func on_enter() -> void:
	_elapsed = 0.0
	_released = false
	_thrown = false
	
	_pokemon = GameData.get_selected_pokemon()
	_target = null
	_free_aim_point = Vector3.ZERO
	
	player.floor_snap_length = 1.0
	#player.godot_plush_skin.set_state("throw")
	
func exit() -> void:
	AimReticle.hide_instance() #si la visee est encore active, GroundedState le reaffiche a la frame suivante

func physics_update(delta : float) -> void:
	if applies(): return
	
	player.gravity_apply(delta)
	
	if _pokemon == null:
		slow_down(delta)
		finish() #rien a lancer (equipe vide ou tous K.O.)
		return
	
	#phase 1 : charge, tant que RT est maintenue
	if !_released:
		charge(delta)
		return
	
	#phase 2 : windup puis recovery
	slow_down(delta)
	
	if !_thrown and Input.is_action_just_pressed(cancel_action):
		finish() #annule avant que la balle parte
		return
	
	if _thrown and input.aim_pressed():
		finish() #balle partie : on coupe la recuperation pour pouvoir viser tout de suite
		return
	
	_elapsed += delta
	if !_thrown and _elapsed >= windup_time:
		throw_ball()
	if _elapsed >= windup_time + recovery_time:
		finish()

func applies() -> bool:
	return !player.is_on_floor() and player.velocity.y < 0.0 and fall()

#---------- charge ----------

func charge(delta : float) -> void:
	if Input.is_action_just_pressed(cancel_action):
		finish() #annule : rien n'est lance
		return
	
	if input.aim_pressed(): player.aim_targeting.begin_aim() #on peut se mettre a viser en pleine charge, sans perdre la charge
	
	if !input.throw_held():
		release()
		return
	
	move_while_charging(delta)
	if player.is_aiming: player.aim_targeting.tick() #cible verrouillee / changement de cible pendant la charge
	else: player.aim_targeting.update_reticle()

func release() -> void:
	#RT relachee : on fige la cible et le point vise, puis le windup demarre
	_released = true
	_elapsed = 0.0
	_target = player.aim_target if is_instance_valid(player.aim_target) else null
	_free_aim_point = player.throw_resolver.compute_free_aim_point()

func move_while_charging(delta : float) -> void:
	player.move_dir = input.read_move_dir()
	
	if player.move_dir and player.is_on_floor():
		accelerate(charge_move_speed, charge_move_accel, delta)
	else:
		slow_down(delta)

func finish() -> void:
	if input.aim_held(): player.aim_targeting.begin_aim() #visee enfoncee : elle continue apres le lancer (sans effet si deja active)
	
	#accroupi ou non : la posture est conservee, Idle / Walk la reappliquent
	var dir : Vector2 = input.read_move_raw()
	request_ground_state(dir != Vector2.ZERO)

#---------- lancer ----------

func throw_ball() -> void:
	_thrown = true
	hints_changed.emit()
	AimReticle.hide_instance()
	#la balle est autonome : son atterrissage et l'envoi du pokemon sont geres par ThrowResolver, meme si le joueur change d'etat entre-temps
	player.throw_resolver.throw_ball(_pokemon, _target, _free_aim_point)

func get_hints() -> Array[Hint]:
	var list : Array[Hint] = []
	if !_thrown: list.append(cancel_hint) #plus d'annulation possible une fois la balle partie
	return list