# CubeUI (첫 버전) —— 도깨비 방주 / 제작 (Cube) 窗。
#
#   var cu := preload("res://ui/cube_ui.gd").new()
#   add_child(cu)
#   cu.setup(m2client, canvas_parent, proto)   # proto 可空
#
# 服务器通过 GC_CHAT/COMMAND 的 "cube ..." 行驱动（见 EntityStore::apply_server_command）：
#   cube_opened(npc)  → 显示 + 请求配方列表
#   cube_changed      → 刷新配方 / 材料 / 金币
#   cube_result(vnum,count,ok) → 结果提示
#   cube_closed       → 隐藏
# 选中一个配方、把背包物品放入材料槽 → [制作] → M2Client.cube_make(index)。
# 40250 服务端按材料槽匹配配方，`result_index` 只保留给 m2dev 后端；classic
# 会安全地忽略它并执行一次 `/cube make`。
extends Node

var client: Node
var proto: Node
var _root: Control
var _title: Label
var _status: Label
var _list: VBoxContainer
var _mat: VBoxContainer
var _make_btn: Button
var _sel := -1
var _cube_slots: Dictionary = {} # cube index:int -> inventory cell:int
var _craft_in_flight := false
var _cube_npc_vnum := 0

func setup(m2client: Node, parent: Node, proto_node: Node = null) -> void:
	client = m2client
	proto = proto_node
	_build(parent)
	if client.has_signal("cube_opened"):
		client.cube_opened.connect(_on_open)
	if client.has_signal("cube_closed"):
		client.cube_closed.connect(func() -> void: _root.visible = false)
	if client.has_signal("cube_changed"):
		client.cube_changed.connect(refresh)
	if client.has_signal("cube_result"):
		client.cube_result.connect(_on_result)
	if client.has_signal("inventory_changed"):
		client.inventory_changed.connect(func(_window, _cell): refresh())

func is_open() -> bool:
	return _root != null and _root.visible

func _on_open(npc_vnum: int) -> void:
	if npc_vnum <= 0:
		return
	var current: Dictionary = client.get_cube() if client.has_method("get_cube") else {}
	if current.has("open") and not bool(current.get("open", false)):
		return
	var current_npc := int(current.get("npc_vnum", 0))
	if current_npc > 0 and current_npc != npc_vnum:
		return
	_sel = -1
	_cube_slots.clear()
	_craft_in_flight = false
	_cube_npc_vnum = npc_vnum
	_root.visible = true
	_title.text = "제작 (Cube) · NPC #%d" % npc_vnum
	_status.text = ""
	if client.has_method("cube_request_result_list"):
		client.cube_request_result_list(npc_vnum)
	refresh()

func _on_result(vnum: int, count: int, ok: bool) -> void:
	_craft_in_flight = false
	if ok:
		_status.text = "제작 성공: %s ×%d" % [_name_of(vnum), count]
		# 40250 在成功后消耗材料；等待 inventory/cube_changed 的最终状态前，
		# 先清掉本地映射，避免旧背包格继续显示为可用材料。
		_cube_slots.clear()
	else:
		_status.text = "제작 실패"
	refresh()

func _name_of(vnum: int) -> String:
	if proto and proto.has_method("item"):
		var d: Dictionary = proto.item(vnum)
		var n := String(d.get("locale_name", d.get("name", "")))
		if n != "":
			return n
	return "#%d" % vnum

func refresh() -> void:
	if client == null or _root == null or not _root.visible:
		return
	var cube: Dictionary = client.get_cube()
	if not cube.get("open", true):
		_root.visible = false
		return
	var recipes: Array = cube.get("recipes", [])
	var results: Array = cube.get("results", [])
	for c in _list.get_children():
		c.queue_free()
	var n: int = maxi(recipes.size(), results.size())
	if n == 0:
		var e := Label.new()
		e.text = "（이 NPC의 제작 목록 없음）"
		_list.add_child(e)
	for i in n:
		var vnum := 0
		if i < recipes.size():
			vnum = int((recipes[i] as Dictionary).get("result_vnum", 0))
		if vnum == 0 and i < results.size():
			vnum = int((results[i] as Dictionary).get("vnum", 0))
		var b := Button.new()
		b.toggle_mode = true
		b.button_pressed = (i == _sel)
		b.text = "%d. %s" % [i + 1, _name_of(vnum)]
		var idx := i
		b.pressed.connect(func() -> void: _select(idx))
		_list.add_child(b)
	_refresh_materials()

func _select(i: int) -> void:
	_sel = i
	for k in _list.get_child_count():
		var b := _list.get_child(k)
		if b is Button:
			b.button_pressed = (k == i)
	# 材料信息可能未拉过 → 请求
	if client.has_method("cube_request_materials"):
		client.cube_request_materials(i, 1)
	_refresh_materials()

func _refresh_materials() -> void:
	for c in _mat.get_children():
		c.queue_free()
	var cube: Dictionary = client.get_cube()
	var recipes: Array = cube.get("recipes", [])
	var recipe: Dictionary = _selected_recipe()
	_make_btn.disabled = _sel < 0 or recipe.is_empty() or _craft_in_flight \
		or not _recipe_can_craft(recipe)
	if _sel < 0 or _sel >= recipes.size():
		_mat.add_child(_lbl("재료 정보를 불러오는 중…", 12))
	else:
		var r: Dictionary = recipe
		_mat.add_child(_lbl("필요 골드: %d" % int(r.get("gold", 0)), 12))
		var groups: Array = r.get("material_groups", [])
		if groups.is_empty():
			_mat.add_child(_lbl("(재료 없음)", 12))
		for g in groups:
			var parts: Array = []
			for s in (g as Array):
				parts.append("%s ×%d" % [_name_of(int((s as Dictionary).get("vnum", 0))),
					int((s as Dictionary).get("count", 1))])
			_mat.add_child(_lbl("• " + " / ".join(parts), 12))
		if not _recipe_can_craft(r):
			_mat.add_child(_lbl("（材料不足或未放入材料槽）", 11))
		elif client.has_method("get_points") and int(r.get("gold", 0)) > int(client.get_points().get("gold", 0)):
			_make_btn.disabled = true
			_mat.add_child(_lbl("（金币不足）", 11))

	_mat.add_child(HSeparator.new())
	_mat.add_child(_lbl("재료 슬롯 (클릭하면 추가/삭제)", 12))
	for slot in _cube_slots.keys():
		var cell := int(_cube_slots[slot])
		var row := HBoxContainer.new()
		var label := _lbl("cube[%d] ← bag[%d]" % [int(slot), cell], 11)
		row.add_child(label)
		var remove := Button.new()
		remove.text = "삭제"
		remove.pressed.connect(func() -> void:
			if client.has_method("cube_delete_item") and client.cube_delete_item(int(slot)):
				_cube_slots.erase(slot)
				refresh())
		row.add_child(remove)
		_mat.add_child(row)

	_mat.add_child(_lbl("背包物品：", 12))
	var used_cells := {}
	for cell in _cube_slots.values():
		used_cells[int(cell)] = true
	var inventory: Array = client.get_inventory() if client.has_method("get_inventory") else []
	var added := 0
	for item in inventory:
		var inv_cell := int(item.get("cell", -1))
		var item_vnum := int(item.get("vnum", 0))
		if used_cells.has(inv_cell):
			continue
		if not _recipe_accepts_vnum(recipe, item_vnum):
			continue
		var free_slot := _first_free_cube_slot()
		if free_slot < 0:
			break
		var add := Button.new()
		add.text = "+ bag[%d] %s ×%d" % [inv_cell, _name_of(item_vnum),
			int(item.get("count", 1))]
		add.alignment = HORIZONTAL_ALIGNMENT_LEFT
		add.pressed.connect(func() -> void:
			var target := _first_free_cube_slot()
			if target >= 0 and client.has_method("cube_add_item") and client.cube_add_item(target, inv_cell):
				_cube_slots[target] = inv_cell
				refresh())
		_mat.add_child(add)
		added += 1
	if added == 0:
		_mat.add_child(_lbl("（可用背包物品 없음）", 11))

func _selected_recipe() -> Dictionary:
	if client == null or not client.has_method("get_cube"):
		return {}
	var recipes: Array = client.get_cube().get("recipes", [])
	if _sel < 0 or _sel >= recipes.size():
		return {}
	return recipes[_sel] as Dictionary

func _recipe_accepts_vnum(recipe: Dictionary, vnum: int) -> bool:
	if vnum <= 0:
		return false
	for group in recipe.get("material_groups", []):
		for option in group as Array:
			if int((option as Dictionary).get("vnum", 0)) == vnum:
				return true
	return false

func _recipe_can_craft(recipe: Dictionary) -> bool:
	if recipe.is_empty():
		return false
	var provided := {}
	if client.has_method("get_inventory"):
		var inventory: Array = client.get_inventory()
		for cell in _cube_slots.values():
			for item in inventory:
				if int(item.get("cell", -1)) == int(cell):
					var vnum := int(item.get("vnum", 0))
					provided[vnum] = int(provided.get(vnum, 0)) + maxi(1, int(item.get("count", 1)))
					break
	for group in recipe.get("material_groups", []):
		var matched := false
		for option in group as Array:
			var material: Dictionary = option as Dictionary
			var vnum := int(material.get("vnum", 0))
			var need := maxi(1, int(material.get("count", 1)))
			if int(provided.get(vnum, 0)) >= need:
				provided[vnum] = int(provided[vnum]) - need
				matched = true
				break
		if not matched:
			return false
	return true

func _first_free_cube_slot() -> int:
	for i in 24:
		if not _cube_slots.has(i):
			return i
	return -1

func _lbl(t: String, sz: int) -> Label:
	var l := Label.new()
	l.text = t
	l.add_theme_font_size_override("font_size", sz)
	return l

func _build(parent: Node) -> void:
	_root = Panel.new()
	_root.set_anchors_preset(Control.PRESET_CENTER)
	_root.position = Vector2(-200, -190)
	_root.custom_minimum_size = Vector2(400, 380)
	_root.size = Vector2(400, 380)
	_root.visible = false
	parent.add_child(_root)
	var box := VBoxContainer.new()
	box.position = Vector2(16, 14)
	box.custom_minimum_size = Vector2(368, 0)
	box.add_theme_constant_override("separation", 6)
	_root.add_child(box)
	_title = _lbl("제작 (Cube)", 16)
	box.add_child(_title)
	var split := HBoxContainer.new()
	split.add_theme_constant_override("separation", 10)
	box.add_child(split)
	var lsc := ScrollContainer.new()
	lsc.custom_minimum_size = Vector2(180, 250)
	split.add_child(lsc)
	_list = VBoxContainer.new()
	_list.add_theme_constant_override("separation", 3)
	lsc.add_child(_list)
	_mat = VBoxContainer.new()
	_mat.custom_minimum_size = Vector2(178, 250)
	_mat.add_theme_constant_override("separation", 3)
	split.add_child(_mat)
	_status = _lbl("", 12)
	_status.add_theme_color_override("font_color", Color(1, 0.9, 0.5))
	box.add_child(_status)
	var brow := HBoxContainer.new()
	brow.add_theme_constant_override("separation", 12)
	box.add_child(brow)
	_make_btn = Button.new()
	_make_btn.text = "제작"
	_make_btn.disabled = true
	_make_btn.pressed.connect(func() -> void:
		var recipe := _selected_recipe()
		if _sel < 0 or recipe.is_empty():
			_status.text = "请先选择配方"
			return
		if not _recipe_can_craft(recipe):
			_status.text = "材料不足或未放入材料槽"
			refresh()
			return
		if client.has_method("cube_make") and client.cube_make(_sel):
			_craft_in_flight = true
			_status.text = "制作中…"
			_make_btn.disabled = true)
	brow.add_child(_make_btn)
	var close := Button.new()
	close.text = "닫기"
	close.pressed.connect(func() -> void:
		if client.has_method("cube_close"):
			client.cube_close()
		_root.visible = false)
	brow.add_child(close)