# SafeboxUI (P8) —— 仓库窗。
#
#   var bu := preload("res://ui/safebox_ui.gd").new()
#   add_child(bu)
#   bu.setup(m2client, canvas_parent, proto)   # proto 可空
#
# `safebox_changed` 刷新（size>0 → 打开）。列出仓库道具 + [取出]。
# inventory_ui 在仓库开着时右键道具 → 调 bu.deposit(win, cell)。
# 取出/存入用第一个空位（简版：deposit 用 safe_pos = 下一个空格；checkout 用道具 cell）。
extends Node

const ItemTooltip = preload("res://ui/item_tooltip.gd")

var client: Node
var proto: Node
var _tooltip_builder: RefCounted
var _root: Control
var _list: VBoxContainer
var _gold: Label
var _title: Label
var _status: Label
var _password_dialog: ConfirmationDialog
var _grid: GridContainer
var _cells: Dictionary = {}
var _page_label: Label
var _page := 0
var item_mouse: Node

const SAFE_PAGE_SLOTS := 45
const SAFE_WINDOW := 3

func setup(m2client: Node, parent: Node, proto_node: Node = null) -> void:
	client = m2client
	proto = proto_node
	_tooltip_builder = ItemTooltip.new()
	_tooltip_builder.setup(AssetRoot.path(), "en", proto)
	_build(parent)
	if client.has_signal("safebox_changed"):
		client.safebox_changed.connect(refresh)
	if client.has_signal("safebox_password_required"):
		client.safebox_password_required.connect(func(): _ask_password("safebox"))
	if client.has_signal("safebox_wrong_password"):
		client.safebox_wrong_password.connect(func():
			if is_instance_valid(_status):
				_status.text = "仓库密码错误")

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

func close() -> void:
	if item_mouse and item_mouse.has_method("unregister_owner"):
		item_mouse.unregister_owner(self)
		if item_mouse.has_method("is_attached") and item_mouse.is_attached():
			item_mouse.cancel()
	if _root:
		_root.visible = false
	_page = 0
	if is_instance_valid(_password_dialog):
		_password_dialog.queue_free()
		_password_dialog = null

func deposit(inv_window: int, inv_cell: int) -> void:
	if not is_open() or inv_window < 0 or inv_cell < 0:
		return
	var safe_pos := _next_free_slot()
	if safe_pos < 0:
		_status.text = "仓库已满"
		return
	if client.has_method("safebox_checkin") and not client.safebox_checkin(safe_pos, inv_window, inv_cell):
		_status.text = "存入请求发送失败"

func _next_free_slot() -> int:
	var used := {}
	for it in client.get_safebox_items():
		used[int(it.get("cell", -1))] = true
	var cap: int = maxi(1, client.get_safebox_size()) * 45
	for i in range(cap):
		if not used.has(i):
			return i
	return -1

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 _tooltip_for(item: Dictionary) -> String:
	var vnum := int(item.get("vnum", 0))
	if _tooltip_builder:
		var pd: Dictionary = proto.item(vnum) if proto and proto.has_method("item") else {}
		return _tooltip_builder.format(vnum, int(item.get("count", 1)), pd, item)
	return "%s\n#%d ×%d" % [_name_of(vnum), vnum, int(item.get("count", 1))]

func refresh() -> void:
	if client == null:
		return
	_root.visible = client.is_safebox_open()
	if not _root.visible:
		return
	_status.text = ""
	var pages := maxi(1, int(client.get_safebox_size()))
	_page = clampi(_page, 0, pages - 1)
	_title.text = "仓库（第 %d/%d 页）" % [_page + 1, pages]
	_page_label.text = "%d / %d" % [_page + 1, pages]
	_gold.text = "仓库金币: %d" % client.get_safebox_gold()
	for c in _list.get_children():
		c.queue_free()
	_render_grid()
	var items: Array = client.get_safebox_items()
	if items.is_empty():
		var e := Label.new()
		e.text = "（空）"
		_list.add_child(e)
		return
	for it in items:
		_list.add_child(_row(it))

func _render_grid() -> void:
	if _grid == null:
		return
	for pos in _cells:
		var cell: Button = _cells[pos]
		cell.text = ""
		cell.tooltip_text = ""
		cell.set_meta("vnum", 0)
		cell.set_meta("count", 0)
	var items: Array = client.get_safebox_items() if client and client.has_method("get_safebox_items") else []
	for it in items:
		var absolute_pos := int(it.get("cell", -1))
		var pos := absolute_pos - _page * SAFE_PAGE_SLOTS
		if not _cells.has(pos):
			continue
		var cell: Button = _cells[pos]
		var vnum := int(it.get("vnum", 0))
		var count := int(it.get("count", 1))
		cell.text = "%s%s" % [_name_of(vnum).substr(0, 7), (" ×%d" % count) if count > 1 else ""]
		cell.tooltip_text = _tooltip_for(it)
		cell.set_meta("vnum", vnum)
		cell.set_meta("count", count)

func _drop_to_slot(payload: Dictionary, local_pos: int) -> bool:
	if payload.is_empty() or not _cells.has(local_pos):
		return false
	var safe_pos := _page * SAFE_PAGE_SLOTS + local_pos
	var cell: Button = _cells[local_pos]
	if int(cell.get_meta("vnum", 0)) != 0:
		return false
	var source_window := int(payload.get("window", -1))
	var source_cell := int(payload.get("cell", -1))
	if source_cell < 0:
		return false
	if source_window in [1, 2] and client.has_method("safebox_checkin"):
		return client.safebox_checkin(safe_pos, source_window, source_cell)
	if source_window == SAFE_WINDOW and client.has_method("safebox_move"):
		return client.safebox_move(source_cell, safe_pos, 1)
	return false

func _on_grid_input(local_pos: int, event: InputEvent) -> void:
	if not item_mouse or not item_mouse.has_method("attach_item"):
		return
	if not (event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_LEFT
			and event.pressed):
		return
	var cell: Button = _cells[local_pos]
	var vnum := int(cell.get_meta("vnum", 0))
	if vnum == 0:
		return
	item_mouse.attach_item(SAFE_WINDOW, _page * SAFE_PAGE_SLOTS + local_pos, vnum,
			int(cell.get_meta("count", 1)), null, "safebox")

func _change_page(delta: int) -> void:
	var pages := maxi(1, int(client.get_safebox_size()))
	_page = clampi(_page + delta, 0, pages - 1)
	refresh()

func _ask_password(kind: String) -> void:
	if is_instance_valid(_password_dialog):
		_password_dialog.queue_free()
	_password_dialog = ConfirmationDialog.new()
	_password_dialog.title = "商城密码" if kind == "mall" else "仓库密码"
	_password_dialog.dialog_text = "请输入 1～6 位密码"
	_password_dialog.ok_button_text = "确认"
	_password_dialog.cancel_button_text = "取消"
	var edit := LineEdit.new()
	edit.secret = true
	edit.max_length = 6
	edit.placeholder_text = "密码"
	edit.custom_minimum_size = Vector2(220, 28)
	_password_dialog.add_child(edit)
	_password_dialog.confirmed.connect(func() -> void:
		var sent: bool = client.safebox_password(edit.text) if kind == "safebox" else client.mall_password(edit.text)
		if not sent and is_instance_valid(_status):
			_status.text = "密码格式无效"
		_password_dialog.queue_free()
		_password_dialog = null)
	_password_dialog.canceled.connect(func() -> void:
		_password_dialog.queue_free()
		_password_dialog = null)
	_root.get_parent().add_child(_password_dialog)
	_password_dialog.popup_centered()

func _row(it: Dictionary) -> Control:
	var row := HBoxContainer.new()
	row.custom_minimum_size = Vector2(300, 0)
	var nm := Label.new()
	nm.text = "%s ×%d" % [_name_of(int(it.get("vnum", 0))), int(it.get("count", 1))]
	nm.custom_minimum_size = Vector2(220, 0)
	nm.add_theme_font_size_override("font_size", 12)
	row.add_child(nm)
	var out := Button.new()
	out.text = "取出"
	var cell := int(it.get("cell", 0))
	out.pressed.connect(func() -> void:
		var target := _first_free_inv()
		if target < 0:
			_status.text = "背包已满"
			return
		if not client.safebox_checkout(cell, 1, target):
			_status.text = "取出请求发送失败")
	row.add_child(out)
	return row

func _first_free_inv() -> int:
	var used := {}
	for it in client.get_inventory():
		used[int(it.get("cell", -1))] = true
	for i in range(90):
		if not used.has(i):
			return i
	return -1

func _build(parent: Node) -> void:
	_root = Control.new()
	_root.set_anchors_preset(Control.PRESET_CENTER)
	_root.position = Vector2(-170, -200)
	_root.size = Vector2(340, 400)
	_root.visible = false
	_root.set_meta("is_titlebar", true)
	parent.add_child(_root)
	var panel := Panel.new()
	panel.set_anchors_preset(Control.PRESET_FULL_RECT)
	var sb := StyleBoxFlat.new()
	sb.bg_color = Color(0.06, 0.08, 0.09, 0.97)
	sb.set_corner_radius_all(4)
	panel.add_theme_stylebox_override("panel", sb)
	_root.add_child(panel)
	_title = Label.new()
	_title.text = "仓库"
	_title.position = Vector2(12, 8)
	_root.add_child(_title)
	var prev := Button.new()
	prev.text = "‹"
	prev.position = Vector2(235, 6)
	prev.size = Vector2(28, 24)
	prev.pressed.connect(func(): _change_page(-1))
	_root.add_child(prev)
	_page_label = Label.new()
	_page_label.position = Vector2(266, 10)
	_page_label.size = Vector2(60, 18)
	_page_label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
	_root.add_child(_page_label)
	var next := Button.new()
	next.text = "›"
	next.position = Vector2(302, 6)
	next.size = Vector2(28, 24)
	next.pressed.connect(func(): _change_page(1))
	_root.add_child(next)
	_gold = Label.new()
	_gold.text = "仓库金币: 0"
	_gold.position = Vector2(12, 30)
	_gold.modulate = Color(0.95, 0.85, 0.5)
	_gold.add_theme_font_size_override("font_size", 12)
	_root.add_child(_gold)
	_status = Label.new()
	_status.position = Vector2(12, 382)
	_status.add_theme_font_size_override("font_size", 11)
	_status.add_theme_color_override("font_color", Color(1, 0.65, 0.55))
	_root.add_child(_status)
	_list = VBoxContainer.new()
	_list.position = Vector2(12, 54)
	_list.add_theme_constant_override("separation", 4)
	_root.add_child(_list)
	_list.visible = false
	_grid = GridContainer.new()
	_grid.columns = 5
	_grid.position = Vector2(12, 54)
	_grid.add_theme_constant_override("h_separation", 4)
	_grid.add_theme_constant_override("v_separation", 4)
	_root.add_child(_grid)
	for pos in SAFE_PAGE_SLOTS:
		var cell := Button.new()
		cell.custom_minimum_size = Vector2(58, 30)
		cell.add_theme_font_size_override("font_size", 9)
		cell.set_meta("safe_pos", pos)
		cell.gui_input.connect(func(e: InputEvent): _on_grid_input(pos, e))
		if item_mouse and item_mouse.has_method("register_target"):
			item_mouse.register_target(cell,
				func(payload: Dictionary): return _drop_to_slot(payload, pos), self)
		_grid.add_child(cell)
		_cells[pos] = cell