# ItemList (P2) —— 读 `locale/locale/common/item_list.txt`：vnum → icon / model 路径。
#
# 格式（TSV，客户端 GameLib/ItemManager.cpp __LoadItemList）：
#   vnum <TAB> TYPE <TAB> iconpath <TAB> [modelpath]
# 例：  19  WEAPON  icon/item/00010.tga  d:/ymir work/item/weapon/00010.gr2
#
#   var il := preload("res://ui/item_list.gd").new()
#   il.load_file("<assets>/locale/locale/common/item_list.txt")
#   il.icon(19)   # "icon/item/00010.tga"
#   il.model(19)  # "d:/ymir work/item/weapon/00010.gr2"  ("" if none)
extends RefCounted

var _by_vnum := {}      # vnum:int -> { type, icon, model }
var count := 0

func load_file(path: String) -> bool:
	_by_vnum.clear()
	count = 0
	if not FileAccess.file_exists(path):
		return false
	var f := FileAccess.open(path, FileAccess.READ)
	if f == null:
		return false
	while not f.eof_reached():
		var line := f.get_line()
		if line.strip_edges() == "":
			continue
		var t := line.split("\t", false)
		if t.size() < 3:
			continue
		var vnum := int(t[0])
		if vnum == 0:
			continue
		_by_vnum[vnum] = {
			"type": t[1].strip_edges(),
			"icon": t[2].strip_edges(),
			"model": t[3].strip_edges() if t.size() >= 4 else "",
		}
	count = _by_vnum.size()
	return count > 0

func has(vnum: int) -> bool:
	return _by_vnum.has(vnum)

func icon(vnum: int) -> String:
	var d: Dictionary = _by_vnum.get(vnum, {})
	return String(d.get("icon", ""))

func model(vnum: int) -> String:
	var d: Dictionary = _by_vnum.get(vnum, {})
	return String(d.get("model", ""))

func type_of(vnum: int) -> String:
	var d: Dictionary = _by_vnum.get(vnum, {})
	return String(d.get("type", ""))