# ServerInfo (P10) —— 服务器列表 + 频道 → (host, port)。
#
#   var si := ServerInfo.new()
#   si.load_file("res://serverlist.txt")   # 可选；没有就用内置默认
#   for s in si.servers(): ...
#   var addr := si.address(server_index, channel)   # {auth_host,auth_port,game_host,game_port}
#
# 文件格式（TSV，# 注释）：
#   name  auth_host  auth_port  game_host  game_port  channels(csv)  [port_step]  [mark_port]
#   测试服  192.168.21.203  11000  192.168.21.203  13002  1,2,3,4  10  0
#
# 频道 N 的 game 端口 = game_port + (N-1)*port_step。
# 这套 40250 配置的 Game2 端口是 13002/13012/13022/13032（step=10）。
# 13000/13010/... 是 first 入口；admin 测试角色在 Game2 地图，直接连 Game2 才能完成进入游戏。
# 第 8 列 mark_port = 公会会徽服端口（0 = 不下载会徽）。
class_name ServerInfo
extends RefCounted

const DEFAULT_PORT_STEP := 1

var _servers: Array = []

func _init() -> void:
	# 内置默认：40250 服务器（认证 11000，channel1/Game2 端口 13002）
	_servers = [{
		"name": "测试服",
		"auth_host": "192.168.21.203", "auth_port": 11000,
		"game_host": "192.168.21.203", "game_port": 13002,
		"channels": [1, 2, 3, 4], "port_step": 10, "mark_port": 0,
	}]

func load_file(path: String) -> bool:
	if not FileAccess.file_exists(path):
		return false
	var f := FileAccess.open(path, FileAccess.READ)
	if f == null:
		return false
	var out: Array = []
	while not f.eof_reached():
		var line := f.get_line().strip_edges()
		if line == "" or line.begins_with("#"):
			continue
		var c := line.split("\t", false)
		if c.size() < 5:
			c = line.split(" ", false)   # 容忍空格分隔
		if c.size() < 5:
			continue
		var chans: Array = []
		if c.size() >= 6:
			for t in String(c[5]).split(",", false):
				chans.append(int(t))
		if chans.is_empty():
			chans = [1]
		var step := DEFAULT_PORT_STEP
		if c.size() >= 7 and int(c[6]) > 0:
			step = int(c[6])
		var mark_port := 0
		if c.size() >= 8 and int(c[7]) > 0:
			mark_port = int(c[7])
		out.append({
			"name": String(c[0]),
			"auth_host": String(c[1]), "auth_port": int(c[2]),
			"game_host": String(c[3]), "game_port": int(c[4]),
			"channels": chans, "port_step": step, "mark_port": mark_port,
		})
	if out.is_empty():
		return false
	_servers = out
	return true

func servers() -> Array:
	return _servers

func count() -> int:
	return _servers.size()

func server(idx: int) -> Dictionary:
	return _servers[idx] if idx >= 0 and idx < _servers.size() else {}

# 返回 {auth_host, auth_port, game_host, game_port}，game_port 已按频道偏移。
func address(server_idx: int, channel: int = 1) -> Dictionary:
	var s := server(server_idx)
	if s.is_empty():
		return {}
	var ch: int = maxi(1, channel)
	var step: int = int(s.get("port_step", DEFAULT_PORT_STEP))
	return {
		"auth_host": s["auth_host"], "auth_port": s["auth_port"],
		"game_host": s["game_host"],
		"game_port": int(s["game_port"]) + (ch - 1) * step,
		"mark_host": s["game_host"], "mark_port": int(s.get("mark_port", 0)),
	}