extends PanelContainer

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

var rank_icon_panel: PanelContainer
var rank_icon_texture: TextureRect
var rank_tier_label: Label
var rank_elo_label: Label
var divider: ColorRect

var icon_panel: PanelContainer
var icon_texture: TextureRect
var value_label: Label
var caption_label: Label
var displayed_value := 0
var _initialized := false


func _ready() -> void:
	size_flags_vertical = Control.SIZE_SHRINK_CENTER
	_build_ui()
	refresh_theme_controls()
	_on_credits_changed()
	_on_ratings_changed()
	CreditsService.credits_changed.connect(_on_credits_changed)
	QuestionBankService.ratings_changed.connect(_on_ratings_changed)
	resized.connect(func(): pivot_offset = size * 0.5)


func _build_ui() -> void:
	var margin := MarginContainer.new()
	margin.add_theme_constant_override("margin_left", 7)
	margin.add_theme_constant_override("margin_right", 7)
	margin.add_theme_constant_override("margin_top", 5)
	margin.add_theme_constant_override("margin_bottom", 5)
	add_child(margin)

	var row := HBoxContainer.new()
	row.add_theme_constant_override("separation", 5)
	margin.add_child(row)

	rank_icon_panel = PanelContainer.new()
	rank_icon_panel.custom_minimum_size = Vector2(22, 22)
	rank_icon_panel.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	rank_icon_texture = TextureRect.new()
	rank_icon_texture.texture = SHIELD_ICON
	rank_icon_texture.custom_minimum_size = Vector2(13, 13)
	rank_icon_texture.expand_mode = TextureRect.EXPAND_IGNORE_SIZE
	rank_icon_texture.stretch_mode = TextureRect.STRETCH_KEEP_ASPECT_CENTERED
	rank_icon_panel.add_child(rank_icon_texture)
	row.add_child(rank_icon_panel)

	var rank_copy := VBoxContainer.new()
	rank_copy.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	rank_copy.add_theme_constant_override("separation", 0)
	rank_tier_label = Label.new()
	rank_tier_label.add_theme_font_override("font", Brand.font)
	rank_tier_label.add_theme_font_size_override("font_size", 13)
	rank_copy.add_child(rank_tier_label)
	rank_elo_label = Label.new()
	rank_elo_label.add_theme_font_override("font", Brand.font)
	rank_elo_label.add_theme_font_size_override("font_size", 9)
	rank_copy.add_child(rank_elo_label)
	row.add_child(rank_copy)

	divider = ColorRect.new()
	divider.custom_minimum_size = Vector2(1, 22)
	divider.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	row.add_child(divider)

	icon_panel = PanelContainer.new()
	icon_panel.custom_minimum_size = Vector2(22, 22)
	icon_panel.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	icon_texture = TextureRect.new()
	icon_texture.texture = STAR_ICON
	icon_texture.custom_minimum_size = Vector2(13, 13)
	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", 13)
	copy.add_child(value_label)
	caption_label = Label.new()
	caption_label.text = "Rz Coins"
	caption_label.add_theme_font_override("font", Brand.font)
	caption_label.add_theme_font_size_override("font_size", 9)
	copy.add_child(caption_label)
	row.add_child(copy)

	var chevron := TextureRect.new()
	chevron.texture = CHEVRON_ICON
	chevron.custom_minimum_size = Vector2(12, 12)
	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, true, Brand.ROYAL_BLUE))
	rank_icon_panel.add_theme_stylebox_override("panel", Brand.icon_circle_box(dark, Brand.ROYAL_BLUE, 11))
	rank_icon_texture.modulate = Brand.ROYAL_BLUE
	rank_tier_label.add_theme_color_override("font_color", Brand.text_color(dark))
	rank_elo_label.add_theme_color_override("font_color", Brand.ROYAL_BLUE)
	divider.color = Color("2a365a") if dark else Brand.LIGHT_BORDER
	icon_panel.add_theme_stylebox_override("panel", Brand.icon_circle_box(dark, Brand.AMBER, 11))
	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 bump() -> void:
	var tween := create_tween()
	tween.tween_property(self, "scale", Vector2(1.12, 1.12), 0.12).set_trans(Tween.TRANS_BACK).set_ease(Tween.EASE_OUT)
	tween.tween_property(self, "scale", Vector2.ONE, 0.18).set_trans(Tween.TRANS_QUAD).set_ease(Tween.EASE_IN)


func _on_ratings_changed() -> void:
	var roman := {1: "I", 2: "II", 3: "III"}
	var division_label: String = roman.get(QuestionBankService.rank_division, "")
	rank_tier_label.text = "%s %s" % [QuestionBankService.rank_tier, division_label]
	rank_elo_label.text = "%d ELO" % QuestionBankService.overall_elo


func _on_credits_changed() -> void:
	if not CreditsService.loaded:
		_initialized = false
		displayed_value = 0
		value_label.text = "--"
		return
	if not _initialized:
		_initialized = true
		displayed_value = CreditsService.credits
		value_label.text = _format_thousands(displayed_value)
		return
	var tween := create_tween()
	tween.tween_method(_set_displayed_value, displayed_value, CreditsService.credits, 0.5).set_trans(Tween.TRANS_QUAD).set_ease(Tween.EASE_OUT)


func _set_displayed_value(value: int) -> void:
	displayed_value = value
	value_label.text = _format_thousands(value)


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