# PrivateShopUI —— 개인상점 개설창 (CG_MYSHOP)．1:1 迁移 `assets/root/uiprivateshopbuilder.py`
# 的 `PrivateShopBuilder`（布局走真 `assets/uiscript/uiscript/privateshopbuilder.py`）。
#
#   var pu := preload("res://ui/private_shop_ui.gd").new()
#   add_child(pu)
#   pu.setup(m2client, ui_manager, proto, assets_root)
#   pu.toggle()
#
# 布局：`privateshopbuilder.py`（board + TitleBar + NameLine + ItemSlot 5×8=40 grid + Ok/Close）。
# 交互 = uiprivateshopbuilder.itemStock：左侧（挂在窗右边的附加面板）列背包候选，点一件
# “拿起”，再点右侧 40 格的空格 → 价格输入（`uiCommon.MoneyInputDialog`）→ 落位
# （`AddPrivateShopItemStock` + `itemStock[targetSlot]=(src)`）；点已占用格 → 撤下
# （`OnSelectItemSlot` / `DelPrivateShopItemStock`）。OkButton(`BuildPrivateShop`)：stock 按
# 格号排序、`display_pos = 格号`、上限 39（`PRIVATE_SHOP_ITEM_MAX_NUM`）打包成
# `M2Client.open_private_shop(sign, [{vnum,count,inv_cell,price,display_pos}])`
# （= `TPacketCGMyShop` + `TShopItemTable`×N）。철수 `close_private_shop()` = SHOP_CG_END。
extends Node

const PRIVATE_SHOP_ITEM_MAX := 39   # PRIVATE_SHOP_ITEM_MAX_NUM (TPacketCGMyShop::bCount 上限)
const SIGN_MAX := 25               # NameLine input_limit

var client: Node
var ui: CanvasLayer          # UiManager
var proto: Node
var assets_root := ""
var uiscript_dir := ""

var _win: Dictionary = {}
var _sign: LineEdit
var _inv_list: VBoxContainer
var _cells: Dictionary = {}      # 格号:int -> Panel
var _status: Label
var _stock: Dictionary = {}      # 格号:int -> {cell, vnum, count, price}
var _picked = null               # {cell, vnum, count} 等待落位
var _price_dialog: Control = null

func setup(m2client: Node, ui_manager: CanvasLayer, proto_node: Node = null, assets := "") -> void:
	client = m2client
	ui = ui_manager
	proto = proto_node
	assets_root = assets
	if assets_root == "" and ui and "assets_root" in ui:
		assets_root = ui.assets_root
	uiscript_dir = assets_root.path_join("uiscript/uiscript")
	if not DirAccess.dir_exists_absolute(uiscript_dir):
		uiscript_dir = assets_root.path_join("uiscript")
	if client and client.has_signal("inventory_changed"):
		client.inventory_changed.connect(func(_w, _c): if is_open(): _refresh())

# --- open / close --------------------------------------------------

func is_open() -> bool:
	return not _win.is_empty() and is_instance_valid(_win.get("root"))

func toggle() -> void:
	if is_open(): close()
	else: open()

func close() -> void:
	_dismiss_price_dialog()
	if is_open():
		ui.close(_win["root"])
	_win = {}
	_cells.clear()
	_stock.clear()
	_picked = null

func open() -> void:
	if is_open():
		return
	var path := uiscript_dir.path_join("privateshopbuilder.py")
	if not FileAccess.file_exists(path):
		push_warning("PrivateShopUI: no privateshopbuilder.py at " + path)
		return
	_stock.clear()
	_picked = null
	_win = ui.open_script(path, assets_root)
	if not is_open():
		return
	var root: Control = _win["root"]
	_index_cells(root)
	_overlay_name_edit(root)
	_add_inv_panel(root)
	_wire_buttons(root)
	_refresh()

func _node(nm: String) -> Control:
	if _win.is_empty():
		return null
	var n = _win.get("nodes", {}).get(nm, null)
	return n if n is Control else null

func _index_cells(root: Node) -> void:
	_cells.clear()
	for n in root.find_children("slot_*", "Panel", true, false):
		if not n.has_meta("slot_index"):
			continue
		var slot := int(n.get_meta("slot_index"))
		_cells[slot] = n
		var idx := slot
		n.gui_input.connect(func(e: InputEvent) -> void:
			if e is InputEventMouseButton and e.button_index == MOUSE_BUTTON_LEFT and e.pressed:
				_on_slot_clicked(idx))

# NameLine 在 uiscript 里是 text（Label）—— 盖一个 LineEdit 上去
func _overlay_name_edit(root: Control) -> void:
	var name_line := _node("NameLine")
	_sign = LineEdit.new()
	_sign.max_length = SIGN_MAX
	_sign.placeholder_text = "상점 이름"
	if name_line:
		name_line.visible = false
		var slot := name_line.get_parent()
		_sign.position = name_line.position
		_sign.size = Vector2(maxf(name_line.size.x, 150), 18)
		(slot if slot is Control else root).add_child(_sign)
	else:
		_sign.position = Vector2(13, 35)
		_sign.size = Vector2(157, 18)
		root.add_child(_sign)

func _wire_buttons(root: Control) -> void:
	var ok := _node("OkButton")
	if ok is BaseButton:
		ok.pressed.connect(_ok)
	var cl := _node("CloseButton")
	if cl is BaseButton:
		cl.pressed.connect(close)
	var tb := _node("TitleBar")
	if tb:
		for b in tb.find_children("*", "BaseButton", true, false):
			b.pressed.connect(close)

# 원 클라는 메인 인벤토리에서 드래그 —— 여기선 창 오른쪽에 후보 패널을 붙임
func _add_inv_panel(root: Control) -> void:
	var panel := Panel.new()
	panel.name = "inv_candidates"
	panel.position = Vector2(root.size.x + 6, 0)
	panel.size = Vector2(220, root.size.y)
	var bg := StyleBoxFlat.new()
	bg.bg_color = Color(0.06, 0.06, 0.09, 0.95)
	bg.border_color = Color(0.4, 0.36, 0.24, 0.9)
	bg.set_border_width_all(1)
	panel.add_theme_stylebox_override("panel", bg)
	root.add_child(panel)
	var title := Label.new()
	title.text = "배낭 (클릭 → 집기)"
	title.position = Vector2(10, 8)
	title.add_theme_font_size_override("font_size", 12)
	panel.add_child(title)
	var sc := ScrollContainer.new()
	sc.position = Vector2(8, 30)
	sc.size = Vector2(204, root.size.y - 66)
	panel.add_child(sc)
	_inv_list = VBoxContainer.new()
	_inv_list.add_theme_constant_override("separation", 3)
	sc.add_child(_inv_list)
	_status = Label.new()
	_status.position = Vector2(10, root.size.y - 30)
	_status.add_theme_font_size_override("font_size", 11)
	_status.add_theme_color_override("font_color", Color(1, 0.9, 0.5))
	panel.add_child(_status)

# --- 명칭 --------------------------------------------------------------

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

# --- 새로고침 --------------------------------------------------------

func _refresh() -> void:
	_refresh_inv()
	_refresh_grid()

func _refresh_inv() -> void:
	if not is_instance_valid(_inv_list):
		return
	for c in _inv_list.get_children():
		_inv_list.remove_child(c)
		c.queue_free()
	var used := {}
	for s in _stock.values():
		used[int(s["cell"])] = true
	var inv: Array = client.get_inventory() if client and client.has_method("get_inventory") else []
	var shown := 0
	for it in inv:
		var cell := int(it.get("cell", 0))
		if used.has(cell):
			continue
		var vnum := int(it.get("vnum", 0))
		var count := int(it.get("count", 1))
		var b := Button.new()
		b.text = "%s ×%d" % [_name_of(vnum), count]
		b.alignment = HORIZONTAL_ALIGNMENT_LEFT
		b.custom_minimum_size = Vector2(196, 22)
		b.toggle_mode = true
		var entry := {"cell": cell, "vnum": vnum, "count": count}
		b.pressed.connect(func() -> void: _pick(entry, b))
		if _picked != null and int(_picked["cell"]) == cell:
			b.button_pressed = true
		_inv_list.add_child(b)
		shown += 1
	if shown == 0:
		var l := Label.new()
		l.text = "（배낭이 비어 있음）"
		l.add_theme_font_size_override("font_size", 12)
		_inv_list.add_child(l)

func _refresh_grid() -> void:
	for slot in _cells.keys():
		var cell: Panel = _cells[slot]
		for ch in cell.get_children():
			cell.remove_child(ch)
			ch.queue_free()
		cell.tooltip_text = ""
		if _stock.has(slot):
			var s: Dictionary = _stock[slot]
			var nm := Label.new()
			nm.text = _name_of(int(s["vnum"])).substr(0, 4)
			nm.add_theme_font_size_override("font_size", 8)
			nm.mouse_filter = Control.MOUSE_FILTER_IGNORE
			cell.add_child(nm)
			var pr := Label.new()
			pr.text = str(int(s["price"]))
			pr.position = Vector2(1, 18)
			pr.add_theme_font_size_override("font_size", 8)
			pr.add_theme_color_override("font_color", Color(0.95, 0.85, 0.5))
			pr.mouse_filter = Control.MOUSE_FILTER_IGNORE
			cell.add_child(pr)
			cell.tooltip_text = "%s ×%d\n%d 냥" % [_name_of(int(s["vnum"])), int(s["count"]), int(s["price"])]
			cell.modulate = Color(1, 1, 1)
		else:
			cell.modulate = Color(0.72, 0.72, 0.82) if _picked != null else Color(1, 1, 1)

# --- 상호작용 --------------------------------------------------------

func _pick(entry: Dictionary, _btn: Button) -> void:
	if _picked != null and int(_picked["cell"]) == int(entry["cell"]):
		_picked = null
	else:
		_picked = entry
	_refresh_grid()

func _on_slot_clicked(slot: int) -> void:
	if _stock.has(slot):
		_stock.erase(slot)
		if is_instance_valid(_status):
			_status.text = ""
		_refresh()
		return
	if _picked == null:
		return
	_ask_price(slot)

func _ask_price(slot: int) -> void:
	_dismiss_price_dialog()
	var dlg := Panel.new()
	dlg.set_anchors_preset(Control.PRESET_CENTER)
	dlg.position = Vector2(-120, -70)
	dlg.size = Vector2(240, 128)
	var sb := StyleBoxFlat.new()
	sb.bg_color = Color(0.06, 0.06, 0.09, 0.98)
	sb.border_color = Color(0.7, 0.55, 0.22, 0.9)
	sb.set_border_width_all(1)
	dlg.add_theme_stylebox_override("panel", sb)
	var t := Label.new()
	t.text = "판매 가격"
	t.position = Vector2(12, 10)
	dlg.add_child(t)
	var spin := SpinBox.new()
	spin.min_value = 1
	spin.max_value = 2000000000
	spin.step = 1
	spin.value = int(_stock.get(slot, {}).get("price", 1))
	spin.position = Vector2(12, 40)
	spin.size = Vector2(216, 28)
	dlg.add_child(spin)
	var ok := Button.new()
	ok.text = "확인"
	ok.position = Vector2(60, 86)
	ok.pressed.connect(func() -> void: _place(slot, int(spin.value)))
	dlg.add_child(ok)
	var cancel := Button.new()
	cancel.text = "취소"
	cancel.position = Vector2(130, 86)
	cancel.pressed.connect(_dismiss_price_dialog)
	dlg.add_child(cancel)
	_win["root"].get_parent().add_child(dlg)
	_price_dialog = dlg

func _dismiss_price_dialog() -> void:
	if is_instance_valid(_price_dialog):
		_price_dialog.queue_free()
	_price_dialog = null

func _place(slot: int, price: int) -> void:
	if price <= 0 or _picked == null:
		_dismiss_price_dialog()
		return
	_stock[slot] = {"cell": int(_picked["cell"]), "vnum": int(_picked["vnum"]),
		"count": int(_picked["count"]), "price": price}
	_picked = null
	_dismiss_price_dialog()
	_refresh()

func _ok() -> void:
	if _stock.is_empty():
		if is_instance_valid(_status):
			_status.text = "판매할 아이템을 올리세요"
		return
	var slots := _stock.keys()
	slots.sort()
	var items: Array = []
	for slot in slots:
		if items.size() >= PRIVATE_SHOP_ITEM_MAX:
			break
		var s: Dictionary = _stock[slot]
		items.append({"vnum": s["vnum"], "count": s["count"], "inv_cell": s["cell"],
			"price": s["price"], "display_pos": slot})
	if client and client.has_method("open_private_shop"):
		client.open_private_shop(_sign.text.strip_edges(), items)
	close()

func _close_shop() -> void:
	if client and client.has_method("close_private_shop"):
		client.close_private_shop()