extends SceneTree

const Style := preload("res://scripts/ui/ui_style.gd")
const Brand := preload("res://scripts/ui/medmind_style.gd")

var failures := 0


func _initialize() -> void:
	Style.set_dark_mode(true)
	var root := Control.new()
	var background := ColorRect.new()
	background.color = Style.BACKGROUND
	root.add_child(background)
	var panel := PanelContainer.new()
	panel.add_theme_stylebox_override("panel", Style.panel_box(Color("172337"), Color("405475")))
	root.add_child(panel)

	Style.set_dark_mode(false)
	Style.refresh_tree(root, true)
	_assert(background.color.is_equal_approx(Style.BACKGROUND), "background should switch to light mode")
	_assert(root.theme.get_color("default_color", "RichTextLabel").is_equal_approx(Style.TEXT), "rich text should use the light text color")
	var light_box := panel.get_theme_stylebox("panel") as StyleBoxFlat
	_assert(light_box.bg_color.is_equal_approx(Color("fffffe")), "custom panel surface should switch to light mode")
	_assert(Brand.background_color(false).is_equal_approx(Color("f1f5f9")), "MedMind light background should match the style guide")
	var light_card := Brand.content_card_box(false, true, Brand.ROYAL_BLUE)
	_assert(light_card.bg_color.is_equal_approx(Color.WHITE), "MedMind light cards should use white surfaces")
	_assert(light_card.border_color.is_equal_approx(Brand.ROYAL_BLUE), "active light cards should use the primary blue border")
	var light_field := Brand.field_box(false)
	_assert(light_field.border_color.is_equal_approx(Brand.LIGHT_BORDER), "light fields should use the semantic cool-gray border")
	var theme_toggle := Button.new()
	Brand.set_theme_toggle_icon(theme_toggle, true)
	_assert(theme_toggle.text.is_empty() and theme_toggle.icon == Brand.SUN_ICON, "dark mode should use the bundled sun icon")
	Brand.set_theme_toggle_icon(theme_toggle, false)
	_assert(theme_toggle.text.is_empty() and theme_toggle.icon == Brand.MOON_ICON, "light mode should use the bundled moon icon")
	var login = load("res://scripts/ui/login_screen.gd").new()
	var password := LineEdit.new()
	var password_reveal := Button.new()
	password.secret = true
	login._refresh_password_reveal(password, password_reveal)
	var show_icon := password_reveal.icon
	password.secret = false
	login._refresh_password_reveal(password, password_reveal)
	_assert(show_icon != null and password_reveal.icon != null and show_icon != password_reveal.icon, "password visibility should switch bundled eye icons")
	password_reveal.free()
	password.free()

	var field_parent := VBoxContainer.new()
	login.add_child(field_parent)
	var auth_field: LineEdit = login._add_field(field_parent, "Email", "name@example.com")
	_assert(auth_field.caret_blink, "authentication fields should display a blinking caret")
	_assert(is_equal_approx(auth_field.caret_blink_interval, 0.5), "authentication field caret should blink at a visible interval")
	login.free()
	theme_toggle.free()

	Style.set_dark_mode(true)
	Style.refresh_tree(root, false)
	_assert(background.color.is_equal_approx(Style.BACKGROUND), "background should switch back to dark mode")
	_assert(root.theme.get_color("default_color", "RichTextLabel").is_equal_approx(Style.TEXT), "rich text should use the dark text color")
	var dark_box := panel.get_theme_stylebox("panel") as StyleBoxFlat
	_assert(dark_box.bg_color.is_equal_approx(Color("172337")), "custom panel surface should switch back to dark mode")

	root.free()
	quit(1 if failures > 0 else 0)


func _assert(condition: bool, message: String) -> void:
	if condition:
		return
	failures += 1
	push_error(message)