class_name SpeechBubble
extends Node2D
## SpeechBubble - World-space speech bubble drawn in _draw() (Phase 3a).
##
## A child of the rig root at a fixed upward offset (SPEECH_BUBBLE_OFFSET), so
## it follows the figure and scales with the camera. Pure drawing, no
## hit-testing. Hidden by default.

const FONT_SIZE := 28
const PADDING := Vector2(14.0, 10.0)
const TAIL_HEIGHT := 12.0
const TAIL_WIDTH := 16.0
const MAX_WIDTH := 320.0
const BG_COLOR := Color(1.0, 1.0, 1.0, 0.95)
const BORDER_COLOR := Color(0.0, 0.0, 0.0, 0.6)
const TEXT_COLOR := Color(0.0, 0.0, 0.0, 1.0)

var _text: String = ""
var _bg_style: StyleBoxFlat

func _init() -> void:
	visible = false
	_bg_style = StyleBoxFlat.new()
	_bg_style.bg_color = BG_COLOR
	_bg_style.border_color = BORDER_COLOR
	_bg_style.set_border_width_all(2)
	_bg_style.set_corner_radius_all(8)

func show_text(text: String) -> void:
	_text = text
	visible = true
	queue_redraw()

func hide_bubble() -> void:
	visible = false

func _draw() -> void:
	if _text.is_empty():
		return
	var font := ThemeDB.fallback_font
	var text_size := font.get_string_size(_text, HORIZONTAL_ALIGNMENT_LEFT, MAX_WIDTH, FONT_SIZE)
	var box_size := text_size + PADDING * 2.0
	var box := Rect2(Vector2(-box_size.x * 0.5, -TAIL_HEIGHT - box_size.y), box_size)
	draw_style_box(_bg_style, box)
	draw_colored_polygon(PackedVector2Array([
		Vector2(-TAIL_WIDTH * 0.5, -TAIL_HEIGHT),
		Vector2(TAIL_WIDTH * 0.5, -TAIL_HEIGHT),
		Vector2(0.0, 0.0),
	]), BG_COLOR)
	draw_string(font, box.position + PADDING, _text, HORIZONTAL_ALIGNMENT_LEFT, MAX_WIDTH, FONT_SIZE, TEXT_COLOR)