extends Control

@export var radial_stamina : bool = false

var current_stam_bar
var stam_bar_visible : bool = false
var interact_visible : bool = false

@onready var level_control = get_tree().current_scene
@onready var player = level_control.player
@onready var stamina_bar: TextureProgressBar = $StaminaBar
@onready var stamina_bar_2: ProgressBar = $StaminaBar2
@onready var health_bar: ProgressBar = $HealthBar
@onready var gun_name: Label = $"MarginContainer/VBoxContainer/Gun Name"
@onready var ammo: Label = $MarginContainer/VBoxContainer/Ammo
@onready var money: Label = $Money
@onready var crosshair: TextureRect = $Crosshair

const FULL_WHITE = Color(1, 1, 1, 1)
const TRANSPARENT = Color(1, 1, 1, 0)
const RED_COLOR = Color(1, 0, 0)
const GREEN_COLOR = Color(0, 0.608, 0.172)

const STAM_BAR_MAX_OPACITY = .7

# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	health_bar.max_value = level_control.start_health

	if radial_stamina:
		current_stam_bar = stamina_bar
		stamina_bar_2.visible = false
	else:
		current_stam_bar = stamina_bar_2
		stamina_bar.visible = false

# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta: float) -> void:
	player = level_control.player
	if player != null:
		#HEALTH
		health_bar.value = level_control.health
		if level_control.health <= 2:
			change_color(health_bar,RED_COLOR,10,delta)
			health_bar.position += wiggle_element()
		else:
			change_color(health_bar,FULL_WHITE,10,delta)
		#MONEY
		money.text = "$" + str(level_control.money)
		if player.remaining_stamina/player.MAX_STAMINA >= .99:
			stam_bar_visible = false
		else:
			stam_bar_visible = true
		current_stam_bar.value = player.remaining_stamina
		
		ammo.text = str(level_control.ammo_current[level_control.current_gun_index]) +" - " + str(level_control.ammo_reserve[level_control.current_gun_index])
		
		if player.gun != null:
			gun_name.text = player.gun.gun_name
		else:
			gun_name.visible = false
		
		if player.remaining_stamina < 25:
			change_color(current_stam_bar,RED_COLOR,10,delta)
			change_color(crosshair,RED_COLOR,10,delta)
		else:
			change_color(current_stam_bar,FULL_WHITE,10,delta)
			change_color(crosshair,FULL_WHITE,10,delta)
			
		if player.interact_ray.is_colliding():
			if player.interact_ray.get_collider() != null:
				if player.interact_ray.get_collider().is_in_group("interact"):
					interact_visible = true
				else:
					interact_visible = false
		else:
			interact_visible = false
		
		if interact_visible == true:
			change_color(crosshair,GREEN_COLOR,10,delta)
		else:
			change_color(crosshair,FULL_WHITE,10,delta)
		
		## FADE ELEMENTS IN AND OUT
		fade_in_out(current_stam_bar,STAM_BAR_MAX_OPACITY,stam_bar_visible,delta)

func wiggle_element():
	var rand_x = randf_range(-5,5)
	var rand_y = randf_range(-5,5)
	return Vector2(rand_x,rand_y)

func change_color(element,color,speed,delta):
	element.modulate = lerp(element.modulate, Color(color.r,color.g,color.b,element.modulate.a), (delta * speed)/Engine.time_scale)

func fade_in_out(element,MAX_OPACITY,visible,delta):
	var element_color = element.modulate
	if visible:
		element.modulate = lerp(element_color, Color(element_color.r,element_color.g,element_color.b,MAX_OPACITY),(delta * 10)/Engine.time_scale)
	else:
		element.modulate = lerp(element_color, Color(element_color.r,element_color.g,element_color.b,0),(delta * 10)/Engine.time_scale)