extends PanelContainer

const Brand := preload("res://scripts/ui/medmind_style.gd")
const STAR_ICON := preload("res://assets/icons/lucide/star.svg")
const CHEVRON_ICON := preload("res://assets/icons/lucide/chevron-down.svg")

var icon_panel: PanelContainer
var icon_texture: TextureRect
var value_label: Label
var caption_label: Label


func _ready() -> void:
	custom_minimum_size = Vector2(150, 44)
	size_flags_vertical = Control.SIZE_SHRINK_CENTER
	_build_ui()
	refresh_theme_controls()
	_on_credits_changed()
	CreditsService.credits_changed.connect(_on_credits_changed)


func _build_ui() -> void:
	var margin := MarginContainer.new()
	margin.add_theme_constant_override("margin_left", 10)
	margin.add_theme_constant_override("margin_right", 10)
	margin.add_theme_constant_override("margin_top", 6)
	margin.add_theme_constant_override("margin_bottom", 6)
	add_child(margin)

	var row := HBoxContainer.new()
	row.add_theme_constant_override("separation", 8)
	margin.add_child(row)

	icon_panel = PanelContainer.new()
	icon_panel.custom_minimum_size = Vector2(28, 28)
	icon_panel.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	icon_texture = TextureRect.new()
	icon_texture.texture = STAR_ICON
	icon_texture.custom_minimum_size = Vector2(16, 16)
	icon_texture.expand_mode = TextureRect.EXPAND_IGNORE_SIZE
	icon_texture.stretch_mode = TextureRect.STRETCH_KEEP_ASPECT_CENTERED
	icon_panel.add_child(icon_texture)
	row.add_child(icon_panel)

	var copy := VBoxContainer.new()
	copy.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	copy.add_theme_constant_override("separation", 0)
	value_label = Label.new()
	value_label.add_theme_font_override("font", Brand.font)
	value_label.add_theme_font_size_override("font_size", 15)
	copy.add_child(value_label)
	caption_label = Label.new()
	caption_label.text = "RZ Points"
	caption_label.add_theme_font_override("font", Brand.font)
	caption_label.add_theme_font_size_override("font_size", 10)
	copy.add_child(caption_label)
	row.add_child(copy)

	var chevron := TextureRect.new()
	chevron.texture = CHEVRON_ICON
	chevron.custom_minimum_size = Vector2(14, 14)
	chevron.expand_mode = TextureRect.EXPAND_IGNORE_SIZE
	chevron.stretch_mode = TextureRect.STRETCH_KEEP_ASPECT_CENTERED
	chevron.mouse_filter = Control.MOUSE_FILTER_IGNORE
	chevron.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	row.add_child(chevron)


func refresh_theme_controls() -> void:
	var dark := UIThemeService.is_dark_mode()
	add_theme_stylebox_override("panel", Brand.content_card_box(dark, false, Brand.AMBER))
	icon_panel.add_theme_stylebox_override("panel", Brand.icon_circle_box(dark, Brand.AMBER, 14))
	icon_texture.modulate = Brand.AMBER
	value_label.add_theme_color_override("font_color", Brand.text_color(dark))
	caption_label.add_theme_color_override("font_color", Brand.muted_color(dark))


func _on_credits_changed() -> void:
	value_label.text = _format_thousands(CreditsService.credits) if CreditsService.loaded else "--"


func _format_thousands(value: int) -> String:
	var digits := str(absi(value))
	var grouped := ""
	var count := 0
	for index in range(digits.length() - 1, -1, -1):
		grouped = digits[index] + grouped
		count += 1
		if count % 3 == 0 and index != 0:
			grouped = "," + grouped
	return ("-" if value < 0 else "") + grouped