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.touch_size(custom_minimum_size)
	_refresh_style()


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


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


func _refresh_style() -> void:
	if _refreshing:
		return
	if not is_inside_tree() and get_parent() == null:
		return
	_refreshing = true
	var normal_fill := Tokens.COLOR_NAVY
	var hover_fill := Tokens.COLOR_NAVY_LIFT
	var pressed_fill := Tokens.COLOR_NAVY_LIFT
	var border := Tokens.COLOR_GOLD
	if semantic_variant == "primary":
		normal_fill = Color("#e8d9b7")
		hover_fill = Color("#fff1c9")
		pressed_fill = Color("#d7c39a")
		border = Color("#806536")
	elif semantic_variant == "danger":
		normal_fill = Color("#4d2830")
		hover_fill = Color("#68343d")
		pressed_fill = Color("#3b2027")
		border = Tokens.COLOR_DANGER
	elif semantic_variant == "icon":
		normal_fill = Color(Tokens.COLOR_NAVY, 0.72)
		hover_fill = Tokens.COLOR_NAVY_LIFT
		pressed_fill = Tokens.COLOR_NAVY
		border = Tokens.COLOR_SKY
	if selected_state:
		hover_fill = Color("#34506a")
		border = Tokens.COLOR_SKY
	if disabled:
		normal_fill = Tokens.COLOR_NAVY_DISABLED
		hover_fill = normal_fill
		pressed_fill = normal_fill
		border = Tokens.COLOR_MUTED
	var text_color := Tokens.COLOR_IVORY
	if semantic_variant == "primary":
		text_color = Tokens.COLOR_INK
	if disabled:
		text_color = Color("#a1a8aa")
	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", _style_box(normal_fill, border))
	add_theme_stylebox_override("hover", _style_box(hover_fill, border))
	add_theme_stylebox_override("pressed", _style_box(pressed_fill, border))
	add_theme_stylebox_override("disabled", _style_box(normal_fill, border))
	add_theme_stylebox_override("focus", _focus_box(border))
	_refreshing = false


func _style_box(fill: Color, border: Color) -> StyleBoxFlat:
	var box := StyleBoxFlat.new()
	box.bg_color = fill
	box.border_color = border
	box.set_border_width_all(1)
	box.corner_radius_top_left = 6
	box.corner_radius_top_right = 6
	box.corner_radius_bottom_left = 6
	box.corner_radius_bottom_right = 6
	box.content_margin_left = 12.0
	box.content_margin_right = 12.0
	box.content_margin_top = 8.0
	box.content_margin_bottom = 8.0
	return box


func _focus_box(border: Color) -> StyleBoxFlat:
	var box := _style_box(Color(0, 0, 0, 0), Tokens.COLOR_SKY)
	box.set_border_width_all(2)
	box.shadow_color = Color(border, 0.32)
	box.shadow_size = 3
	return box