# whisper_chat_system.gd —— 40250 独立多标签私聊与任务栏闪烁通知系统 1:1
# 严格对照：
#   Client/Eternexus/root/uiwhisper.py (WhisperDialog, WhisperButton)
#   ClientVS22/source/UserInterface/PythonChat.cpp (RenderWhisper, WhisperMode)
#   ClientVS22/source/UserInterface/PythonPlayer.cpp (ToggleIgnoreTarget, IsIgnoreTarget)
extends RefCounted

const COLOR_NORMAL := "#FFFFFF"
const COLOR_GM := "#FFE700"          # 官方 GM 专属亮金黄色
const COLOR_SYSTEM := "#00FFFF"

enum DialogState {
	VISIBLE,    # 展开在前台
	MINIMIZED,  # 最小化到底部任务栏
	CLOSED      # 完全关闭
}

class WhisperMessage:
	var sender: String
	var content: String
	var timestamp: int
	var is_gm: bool = false

	func _init(p_sender: String, p_content: String, p_time: int, p_is_gm: bool = false) -> void:
		sender = p_sender
		content = p_content
		timestamp = p_time
		is_gm = p_is_gm

class WhisperConversation:
	var target_name: String
	var is_gamemaster: bool = false
	var state: int = DialogState.VISIBLE
	var is_blinking: bool = false     # 任务栏闪烁标识
	var unread_count: int = 0
	var history: Array = []           # Array of WhisperMessage

	func _init(p_target: String, p_is_gm: bool = false) -> void:
		target_name = p_target
		is_gamemaster = p_is_gm
		state = DialogState.VISIBLE
		is_blinking = false
		unread_count = 0
		history = []

var main_player_name: String = "Hero"
var conversations: Dictionary = {}    # target_name -> WhisperConversation
var ignored_targets: Dictionary = {}  # target_name -> bool
var current_time: int = 1000

func _init(player_name: String = "Hero") -> void:
	main_player_name = player_name
	conversations.clear()
	ignored_targets.clear()
	current_time = 1000

# 1. 打开或激活与某人的私聊窗口 (uiwhisper.py: OpenWhisperDialog)
func open_conversation(target_name: String) -> WhisperConversation:
	if target_name.is_empty():
		return null

	var conv: WhisperConversation = null
	if conversations.has(target_name):
		conv = conversations[target_name]
		conv.state = DialogState.VISIBLE
		conv.is_blinking = false
		conv.unread_count = 0
	else:
		var is_gm: bool = target_name.begins_with("[GM]")
		conv = WhisperConversation.new(target_name, is_gm)
		conversations[target_name] = conv

	return conv

# 2. 最小化私聊窗口到任务栏 (uiwhisper.py: Minimize)
func minimize_conversation(target_name: String) -> bool:
	if not conversations.has(target_name):
		return false
	conversations[target_name].state = DialogState.MINIMIZED
	return true

# 3. 关闭私聊窗口 (uiwhisper.py: Close)
func close_conversation(target_name: String) -> bool:
	if not conversations.has(target_name):
		return false
	conversations[target_name].state = DialogState.CLOSED
	return true

# 4. 收到私聊消息 (1:1 PythonChat::AppendWhisper)
func receive_whisper(sender_name: String, text: String, is_gm_override: bool = false) -> Dictionary:
	var res := {
		"delivered": false,
		"blocked_by_ignore": false,
		"triggered_blink": false,
		"conversation": null,
		"error_code": "OK"
	}

	# 检查黑名单免打扰 (ToggleIgnoreTarget / IsIgnoreTarget)
	if is_ignored(sender_name):
		res["blocked_by_ignore"] = true
		res["error_code"] = "BLOCKED_BY_IGNORE"
		return res

	var is_gm: bool = is_gm_override or sender_name.begins_with("[GM]")

	# 获取或创建会话
	var conv: WhisperConversation = null
	if conversations.has(sender_name):
		conv = conversations[sender_name]
	else:
		conv = WhisperConversation.new(sender_name, is_gm)
		conv.state = DialogState.MINIMIZED # 新收到的私聊若未预先开启则最小化并在任务栏闪烁
		conversations[sender_name] = conv

	var msg = WhisperMessage.new(sender_name, text, current_time, is_gm)
	conv.history.append(msg)

	# 若处于最小化或后台，激活任务栏闪烁与未读计数
	if conv.state == DialogState.MINIMIZED or conv.state == DialogState.CLOSED:
		conv.is_blinking = true
		conv.unread_count += 1
		res["triggered_blink"] = true

	res["delivered"] = true
	res["conversation"] = conv
	return res

# 5. 发送私聊消息
func send_whisper(target_name: String, text: String) -> Dictionary:
	var res := { "success": false, "error_code": "OK", "message": "" }

	if target_name.is_empty():
		res["error_code"] = "EMPTY_TARGET"
		return res

	if text.strip_edges().is_empty():
		res["error_code"] = "EMPTY_MESSAGE"
		return res

	var conv = open_conversation(target_name)
	var msg = WhisperMessage.new(main_player_name, text, current_time, false)
	conv.history.append(msg)

	res["success"] = true
	return res

# 6. 拉黑/解除拉黑目标 (1:1 player.ToggleIgnoreTarget)
func toggle_ignore_target(target_name: String) -> bool:
	if target_name.is_empty():
		return false

	if ignored_targets.has(target_name):
		ignored_targets.erase(target_name)
		return false # 现在未拉黑
	else:
		ignored_targets[target_name] = true
		return true # 现在已拉黑

func is_ignored(target_name: String) -> bool:
	return ignored_targets.get(target_name, false)

# 7. 获取当前所有在任务栏闪烁的会话列表
func get_blinking_conversations() -> Array:
	var list: Array = []
	for k in conversations:
		var c: WhisperConversation = conversations[k]
		if c.is_blinking:
			list.append(c)
	return list