class_name Combatant extends Node2D

signal healthChanged(health: float)

@onready var renderer: AnimatedSprite2D = $AnimatedSprite2D
@onready var healthbar: HealthBar = $HealthBar
@onready var data: Data = get_node("/root/Arena/Data")

@export var spellbook: Spellbook
@export var maxHealth: float = 10
@export var health: float = maxHealth
@export var player: bool = false

var casting: bool = false
var castCooldown: float = 0

# Called when the node enters the scene tree for the first time.
func _ready():
	renderer.animation_finished.connect(animationFinished)
	renderer.play("idle")
	spellbook.initCooldowns()
	healthbar.maxHealth = maxHealth
	if !player:
		data.opponent = self
		renderer.flip_h = true
		healthbar.position.x *= -1
		match data.difficulty:
			Data.Difficulty.EASY: castCooldown = 3
			Data.Difficulty.NORMAL: castCooldown = 1
			Data.Difficulty.HARD: castCooldown = 0.5
			Data.Difficulty.GAMER: castCooldown = 0
	else:
		data.player = self

# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta):
	if !player:
		match data.difficulty:
			Data.Difficulty.EASY: _easyAI(delta)
			Data.Difficulty.NORMAL: _normalAI(delta)
			Data.Difficulty.HARD: _hardAI(delta)
			Data.Difficulty.GAMER: _gamerAI(delta)

func _easyAI(delta) -> void:
	pass

func _normalAI(delta) -> void:
	pass

func _hardAI(delta) -> void:
	pass

func _gamerAI(delta) -> void:
	pass

func _finishedCasting() -> void:
	pass

func timing(delta) -> void:
	castCooldown -= delta
	if castCooldown <= 0:
		pass

func alterHealth(change: float, stun: bool) -> void:
	health += change
	if stun:
		casting = false
		renderer.play("hit")
	healthChanged.emit(health)

func animationFinished() -> void:
	renderer.play("idle")