class_name BubbleHoverDrawer
extends Control

enum DrawerMode {
	RIGHT,
	LEFT_VERTICAL,
}

const DRAWER_COLOR: Color = Color(0.031, 0.122, 0.169, 1.0)
const TEXT_COLOR: Color = Color(0.764706, 0.87451, 0.901961, 1.0)
const RIGHT_SIZE: Vector2 = Vector2(132.0, 48.0)
const LEFT_VERTICAL_SIZE: Vector2 = Vector2(50.0, 176.0)
const OVERLAP: float = 12.0

var host_button: BaseButton
var drawer_mode: DrawerMode = DrawerMode.RIGHT
var _panel: Panel
var _label: Label


func configure(
	button: BaseButton,
	drawer_text: String,
	mode: DrawerMode,
) -> void:
	host_button = button
	drawer_mode = mode
	mouse_filter = Control.MOUSE_FILTER_IGNORE
	show_behind_parent = true
	_build_controls()
	_label.text = drawer_text
	_refresh_label_layout()
	refresh_layout()
	set_reveal(0.0)


func refresh_layout() -> void:
	if host_button == null:
		return
	if drawer_mode == DrawerMode.RIGHT:
		size = RIGHT_SIZE
		position = Vector2(
			host_button.size.x - OVERLAP,
			(host_button.size.y - size.y) * 0.5,
		)
		pivot_offset = Vector2(0.0, size.y * 0.5)
	else:
		size = LEFT_VERTICAL_SIZE
		position = Vector2(
			-size.x + OVERLAP,
			(host_button.size.y - size.y) * 0.5,
		)
		pivot_offset = Vector2(size.x, size.y * 0.5)
	_refresh_label_layout()


func set_reveal(amount: float) -> void:
	var reveal: float = clampf(amount, 0.0, 1.0)
	visible = reveal > 0.001
	scale = Vector2(maxf(reveal, 0.001), 1.0)


func _build_controls() -> void:
	if _panel != null:
		return
	_panel = Panel.new()
	_panel.mouse_filter = Control.MOUSE_FILTER_IGNORE
	_panel.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	var panel_style := StyleBoxFlat.new()
	panel_style.bg_color = DRAWER_COLOR
	panel_style.corner_radius_top_left = 12
	panel_style.corner_radius_top_right = 12
	panel_style.corner_radius_bottom_right = 12
	panel_style.corner_radius_bottom_left = 12
	_panel.add_theme_stylebox_override("panel", panel_style)
	add_child(_panel)

	_label = Label.new()
	_label.mouse_filter = Control.MOUSE_FILTER_IGNORE
	_label.add_theme_color_override("font_color", TEXT_COLOR)
	_label.add_theme_font_size_override("font_size", 20)
	_label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
	_label.vertical_alignment = VERTICAL_ALIGNMENT_CENTER
	add_child(_label)


func _refresh_label_layout() -> void:
	if _label == null:
		return
	if drawer_mode == DrawerMode.RIGHT:
		_label.rotation = 0.0
		_label.position = Vector2.ZERO
		_label.size = size
	else:
		_label.rotation = -PI * 0.5
		_label.position = Vector2(-OVERLAP * 0.5, size.y)
		_label.size = Vector2(size.y, size.x)