# messenger_system.gd —— 40250 官方好友与行会联络人面板系统 1:1
# 严格对照：
#   ClientVS22/source/UserInterface/PythonMessenger.h, PythonMessenger.cpp
#   Client/Eternexus/root/uimessenger.py
extends RefCounted

const GROUP_FRIEND := 0       # 好友分组 (MESSENGER_GRUOP_INDEX_FRIEND)
const GROUP_GUILD := 1        # 行会分组 (MESSENGER_GRUOP_INDEX_GUILD)
const GROUP_FAMILY := 2       # 家族/伴侣分组 (MessengerFamilyGroup)

const STATE_OFFLINE := 0      # 离线
const STATE_ONLINE := 1       # 在线
const STATE_MOBILE := 2       # 移动短信/挂机状态

# 联络人数据结构
class MessengerContact:
	var name: String
	var group: int
	var state: int
	var love_point: int = -1  # 伴侣爱心值 (0~100)
	var rank: String = ""     # 行会职位
	var last_seen: int = 0

	func _init(p_name: String, p_group: int, p_state: int = STATE_OFFLINE) -> void:
		name = p_name
		group = p_group
		state = p_state
		love_point = -1
		rank = ""
		last_seen = 0

# 分组存储
var friends: Dictionary = {}    # name -> MessengerContact
var guild_members: Dictionary = {} # name -> MessengerContact
var family_partner: MessengerContact = null

# 事件日志回调缓冲（模拟 PythonMessenger 向上层回调）
var event_logs: Array = []

var main_player_name: String = "Player"

func _init(player_name: String = "Player") -> void:
	main_player_name = player_name
	friends.clear()
	guild_members.clear()
	family_partner = null
	event_logs.clear()

# 1. 好友添加 (PythonMessenger::AppendFriend)
func add_friend(friend_name: String, initial_state: int = STATE_ONLINE) -> Dictionary:
	var res := { "success": false, "error_code": "OK", "message": "" }

	if friend_name.is_empty():
		res["error_code"] = "EMPTY_NAME"
		res["message"] = "好友名称不能为空。"
		return res

	if friend_name == main_player_name:
		res["error_code"] = "CANNOT_ADD_SELF"
		res["message"] = "无法将自己添加为好友。"
		return res

	if friends.has(friend_name):
		res["error_code"] = "ALREADY_FRIEND"
		res["message"] = "该玩家已在您的好友列表中。"
		return res

	var contact = MessengerContact.new(friend_name, GROUP_FRIEND, initial_state)
	friends[friend_name] = contact

	event_logs.append({ "type": "ADD_FRIEND", "name": friend_name, "state": initial_state })
	res["success"] = true
	res["message"] = "成功添加 %s 为好友。" % friend_name
	return res

# 2. 好友移除 (PythonMessenger::RemoveFriend)
func remove_friend(friend_name: String) -> bool:
	if not friends.has(friend_name):
		return false
	friends.erase(friend_name)
	event_logs.append({ "type": "REMOVE_FRIEND", "name": friend_name })
	return true

# 3. 登录/登出/移动短信状态同步 (OnFriendLogin / OnFriendLogout / SetMobile)
func set_friend_state(friend_name: String, new_state: int) -> bool:
	if not friends.has(friend_name):
		return false

	var c: MessengerContact = friends[friend_name]
	var old_state: int = c.state
	c.state = new_state

	if new_state == STATE_ONLINE and old_state != STATE_ONLINE:
		event_logs.append({ "type": "FRIEND_LOGIN", "name": friend_name })
	elif new_state == STATE_OFFLINE and old_state != STATE_OFFLINE:
		event_logs.append({ "type": "FRIEND_LOGOUT", "name": friend_name })
	elif new_state == STATE_MOBILE:
		event_logs.append({ "type": "FRIEND_MOBILE", "name": friend_name })

	return true

# 4. 行会成员同步 (AppendGuildMember / RemoveGuildMember / RemoveAllGuildMember)
func append_guild_member(member_name: String, member_rank: String = "Member", state: int = STATE_ONLINE) -> void:
	if guild_members.has(member_name):
		var existing: MessengerContact = guild_members[member_name]
		existing.state = state
		existing.rank = member_rank
		return

	var contact = MessengerContact.new(member_name, GROUP_GUILD, state)
	contact.rank = member_rank
	guild_members[member_name] = contact
	event_logs.append({ "type": "GUILD_MEMBER_ADD", "name": member_name, "rank": member_rank })

func remove_guild_member(member_name: String) -> bool:
	if not guild_members.has(member_name):
		return false
	guild_members.erase(member_name)
	event_logs.append({ "type": "GUILD_MEMBER_REMOVE", "name": member_name })
	return true

func clear_all_guild_members() -> void:
	guild_members.clear()
	event_logs.append({ "type": "GUILD_MEMBER_CLEAR_ALL" })

# 5. 家族/配偶联系人绑定 (MessengerFamilyGroup)
func set_family_partner(partner_name: String, love_points: int = 100, state: int = STATE_ONLINE) -> void:
	family_partner = MessengerContact.new(partner_name, GROUP_FAMILY, state)
	family_partner.love_point = clamp(love_points, 0, 100)
	event_logs.append({ "type": "FAMILY_PARTNER_SET", "name": partner_name, "love": family_partner.love_point })

func update_partner_love_points(points: int) -> void:
	if family_partner != null:
		family_partner.love_point = clamp(points, 0, 100)

func remove_family_partner() -> void:
	family_partner = null
	event_logs.append({ "type": "FAMILY_PARTNER_REMOVE" })

# 6. 查询与过滤工具方法
func is_friend(name: String) -> bool:
	return friends.has(name)

func get_friend_state(name: String) -> int:
	if friends.has(name):
		return friends[name].state
	return STATE_OFFLINE

func get_group_members(group_index: int) -> Array:
	var list: Array = []
	match group_index:
		GROUP_FRIEND:
			for k in friends:
				list.append(friends[k])
		GROUP_GUILD:
			for k in guild_members:
				list.append(guild_members[k])
		GROUP_FAMILY:
			if family_partner != null:
				list.append(family_partner)
	return list

func get_online_count(group_index: int) -> int:
	var members := get_group_members(group_index)
	var online := 0
	for m in members:
		if m.state == STATE_ONLINE or m.state == STATE_MOBILE:
			online += 1
	return online