class_name ABGSharedButton
extends Button

const Tokens = preload("res://foundation/ui_tokens.gd")

## Generic semantic button. It emits the built-in `pressed` intent and owns no
## game state, save behavior or page lookup.

var semantic_variant := "secondary"
var selected_state := false
var busy_state := false
var _refreshing := false


func _ready() -> void:
	focus_mode = Control.FOCUS_ALL
	custom_minimum_size = Tokens.command_size(semantic_variant, custom_minimum_size)
	set_meta("ui_factory_control", true)
	set_meta("ui_semantic_variant", semantic_variant)
	_refresh_style()


func configure(next_text: String, next_variant := "secondary"):
	text = next_text
	semantic_variant = Tokens.normalize_variant(next_variant) if Tokens.is_supported_variant(Tokens.normalize_variant(next_variant)) else "secondary"
	custom_minimum_size = Tokens.command_size(semantic_variant, custom_minimum_size)
	set_meta("ui_semantic_variant", semantic_variant)
	_refresh_style()
	return self


func set_view_state(enabled := true, selected := false, busy := false) -> void:
	disabled = not enabled
	selected_state = selected
	busy_state = busy
	set_meta("ui_selected", selected_state)
	set_meta("ui_busy", busy_state)
	_refresh_style()


func _refresh_style() -> void:
	if _refreshing:
		return
	if not is_inside_tree() and get_parent() == null:
		return
	_refreshing = true
	var colors := Tokens.command_colors(semantic_variant, disabled, false, selected_state)
	var normal_fill: Color = colors.fill
	var hover_fill: Color = colors.hover
	var pressed_fill: Color = colors.pressed
	var border: Color = colors.border
	var text_color: Color = colors.text
	add_theme_color_override("font_color", text_color)
	add_theme_color_override("font_hover_color", text_color)
	add_theme_color_override("font_pressed_color", text_color)
	add_theme_color_override("font_focus_color", text_color)
	add_theme_font_size_override("font_size", Tokens.font_size("label"))
	add_theme_stylebox_override("normal", Tokens.flat_command_style(semantic_variant, "normal", selected_state, disabled))
	add_theme_stylebox_override("hover", Tokens.flat_command_style(semantic_variant, "hover", selected_state, disabled))
	add_theme_stylebox_override("pressed", Tokens.flat_command_style(semantic_variant, "pressed", selected_state, disabled))
	add_theme_stylebox_override("disabled", Tokens.flat_command_style(semantic_variant, "normal", selected_state, true))
	add_theme_stylebox_override("focus", Tokens.flat_command_style(semantic_variant, "focus", selected_state, disabled))
	_refreshing = false