# 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

var client: Node
var proto: Node
var _root: Control
var _list: VBoxContainer
var _gold: Label
var _title: Label

func setup(m2client: Node, parent: Node, proto_node: Node = null) -> void:
	client = m2client
	proto = proto_node
	_build(parent)
	if client.has_signal("safebox_changed"):
		client.safebox_changed.connect(refresh)

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

func deposit(inv_window: int, inv_cell: int) -> void:
	if is_open():
		client.safebox_checkin(_next_free_slot(), inv_window, inv_cell)

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 0

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:
		return
	_root.visible = client.is_safebox_open()
	if not _root.visible:
		return
	_title.text = "仓库（%d 页）" % client.get_safebox_size()
	_gold.text = "仓库金币: %d" % client.get_safebox_gold()
	for c in _list.get_children():
		c.queue_free()
	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 _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: client.safebox_checkout(cell, 1, _first_free_inv()))
	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 0

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)
	_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)
	_list = VBoxContainer.new()
	_list.position = Vector2(12, 54)
	_list.add_theme_constant_override("separation", 4)
	_root.add_child(_list)