class_name LuneItemSlot
extends Button
## A hero item: either one of the three slots (compact: symbol only) or a card in the item
## shop (symbol, name, cost, main effect, state). States say why something cannot be done:
## equipped, available, unaffordable, incompatible (hero level), unique (already carried),
## slots full, locked (plan committed) or an empty slot.

enum State { EMPTY, EQUIPPED, AVAILABLE, UNAFFORDABLE, INCOMPATIBLE, UNIQUE, FULL, LOCKED }
const STATE_TEXT: Dictionary = {State.EQUIPPED: "AUSGERÜSTET", State.AVAILABLE: "KAUFBAR", State.UNAFFORDABLE: "ZU TEUER",
	State.INCOMPATIBLE: "STUFE FEHLT", State.UNIQUE: "GETRAGEN", State.FULL: "PLÄTZE VOLL", State.LOCKED: "GESPERRT", State.EMPTY: "LEER"}
const ITEM_COLORS: Dictionary = {"basaltschild": Color("9fb2c8"), "glutklinge": Color("ff9a5a"), "rankenmantel": Color("8fd08a"),
	"funkenfokus": Color("f5d76a"), "quellamulett": Color("7ad6e6"), "kristallsplitter": Color("c7a2ff")}

var item_id: String = ""
var state: int = State.EMPTY
var compact: bool = true
var _glyph: LuneGlyph
var _name: Label
var _effect: Label
var _cost: Label
var _badge: LuneStatusBadge

static func color_of(id: String) -> Color:
	return ITEM_COLORS.get(id, LuneUiTheme.MUTED)

func _init(is_compact: bool = true) -> void:
	compact = is_compact
	theme_type_variation = "HudChip" if compact else "HudCard"
	focus_mode = Control.FOCUS_ALL
	mouse_default_cursor_shape = Control.CURSOR_POINTING_HAND
	if compact:
		custom_minimum_size = Vector2(30, 30)
		_glyph = LuneGlyph.new()
		_glyph.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
		_glyph.offset_left = 5
		_glyph.offset_top = 5
		_glyph.offset_right = -5
		_glyph.offset_bottom = -5
		add_child(_glyph)
		return
	custom_minimum_size = Vector2(0, 74)
	var row := HBoxContainer.new()
	row.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	row.offset_left = 10
	row.offset_right = -8
	row.offset_top = 6
	row.offset_bottom = -6
	row.add_theme_constant_override("separation", 10)
	row.mouse_filter = Control.MOUSE_FILTER_IGNORE
	add_child(row)
	_glyph = LuneGlyph.make("", Color.WHITE, 34.0, row)
	var column := VBoxContainer.new()
	column.add_theme_constant_override("separation", 0)
	column.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	column.alignment = BoxContainer.ALIGNMENT_CENTER
	column.mouse_filter = Control.MOUSE_FILTER_IGNORE
	row.add_child(column)
	var head := HBoxContainer.new()
	head.add_theme_constant_override("separation", 6)
	head.mouse_filter = Control.MOUSE_FILTER_IGNORE
	column.add_child(head)
	_name = LuneUiTheme.label("", "HudValue", head)
	_name.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	LuneGlyph.make("coin", LuneUiTheme.GOLD, 14.0, head)
	_cost = LuneUiTheme.label("", "HudValue", head)
	_effect = LuneUiTheme.label("", "HudMuted", column)
	_effect.text_overrun_behavior = TextServer.OVERRUN_TRIM_ELLIPSIS
	_effect.clip_text = true
	_badge = LuneStatusBadge.new()
	column.add_child(_badge)
	_badge.size_flags_horizontal = Control.SIZE_SHRINK_BEGIN

func set_item(id: String, new_state: int) -> void:
	item_id = id
	state = new_state
	var item: Dictionary = LuneContent.ITEMS.get(id, {})
	var tint: Color = color_of(id)
	var usable: bool = new_state in [State.AVAILABLE, State.EQUIPPED]
	_glyph.glyph = id if not id.is_empty() else ""
	_glyph.color = tint if usable or compact else Color(tint, .45)
	if compact:
		disabled = id.is_empty()
		return
	_name.text = str(item.get("name", ""))
	_cost.text = str(int(item.get("cost", 0)))
	_cost.add_theme_color_override("font_color", LuneUiTheme.DANGER if new_state == State.UNAFFORDABLE else LuneUiTheme.BRIGHT)
	_effect.text = str(item.get("text", ""))
	var badge_color: Color = LuneUiTheme.GOOD if new_state == State.EQUIPPED else (LuneUiTheme.BRONZE_LIGHT if new_state == State.AVAILABLE else LuneUiTheme.MUTED)
	if new_state == State.UNAFFORDABLE:
		badge_color = LuneUiTheme.DANGER
	var glyphs: Dictionary = {State.EQUIPPED: "check", State.INCOMPATIBLE: "lock", State.LOCKED: "lock", State.UNIQUE: "check"}
	_badge.set_state(STATE_TEXT.get(new_state, ""), badge_color, glyphs.get(new_state, ""), new_state == State.EQUIPPED)
	disabled = not (new_state == State.AVAILABLE or new_state == State.EQUIPPED)