extends Control


@onready var vbox: VBoxContainer = %VBox
@onready var v_label: Label = %VLabel
@onready var panel_label: Label = %PanelLabel
@onready var transition_overlay: ColorRect = %TransitionOverlay

const V_START_SIZE: int = 48
const V_END_SIZE: int = 512
const P_START_SIZE: int = 28
const P_END_SIZE: int = 288


func _ready() -> void:
	if not Engine.is_editor_hint():
		get_window().mode = Window.MODE_FULLSCREEN

	# Start invisible and at tiny font size
	vbox.modulate = Color(1, 1, 1, 0)
	v_label.add_theme_font_size_override("normal_font_size", V_START_SIZE)
	panel_label.add_theme_font_size_override("normal_font_size", P_START_SIZE)
	transition_overlay.color = Color(0, 0, 0, 1)

	await get_tree().process_frame

	# Fade overlay away
	var reveal := create_tween()
	reveal.tween_property(transition_overlay, "color", Color(0, 0, 0, 0), 0.4)
	await reveal.finished

	# Phase 1: Grow font sizes + fade in (parallel)
	var grow := create_tween()
	grow.set_parallel(true)
	grow.tween_method(_set_sizes, 0.0, 1.0, 2.0).set_ease(Tween.EASE_OUT).set_trans(Tween.TRANS_BACK)
	grow.tween_property(vbox, "modulate", Color(1, 1, 1, 1), 1.8).set_ease(Tween.EASE_OUT)
	await grow.finished

	# Phase 2: Hold
	await get_tree().create_timer(1.0).timeout

	# Phase 3: Fade out
	var fade_out := create_tween()
	fade_out.tween_property(vbox, "modulate", Color(1, 1, 1, 0), 0.8).set_ease(Tween.EASE_IN)
	await fade_out.finished

	# Phase 4: Crossfade to dashboard
	var to_black := create_tween()
	to_black.tween_property(transition_overlay, "color", Color(0, 0, 0, 1), 0.3)
	await to_black.finished

	var dashboard := preload("res://scenes/dashboard.tscn").instantiate()
	add_child(dashboard)

	var from_black := create_tween()
	from_black.tween_property(transition_overlay, "color", Color(0, 0, 0, 0), 0.6)
	await from_black.finished

	remove_child(dashboard)
	get_tree().root.add_child(dashboard)
	queue_free()


func _set_sizes(progress: float) -> void:
	var v_size: int = int(round(V_START_SIZE + progress * (V_END_SIZE - V_START_SIZE)))
	var p_size: int = int(round(P_START_SIZE + progress * (P_END_SIZE - P_START_SIZE)))
	v_label.add_theme_font_size_override("normal_font_size", v_size)
	panel_label.add_theme_font_size_override("normal_font_size", p_size)