extends Node
class_name EmojiManager
## 表情符号管理器
## 处理表情符号的显示、转换和管理

# 表情符号映射表
const EMOJI_MAP = {
	# 基础表情
	":)": "😊",
	":-)": "😊", 
	":(": "😢",
	":-(": "😢",
	":D": "😃",
	":-D": "😃",
	";)": "😉",
	";-)": "😉",
	":P": "😛",
	":-P": "😛",
	":o": "😮",
	":-o": "😮",
	":O": "😲",
	":-O": "😲",
	":|": "😐",
	":-|": "😐",
	":/": "😕",
	":-/": "😕",
	"<3": "❤️",
	"</3": "💔",
	
	# 命名表情符号
	":smile:": "😊",
	":happy:": "😊",
	":sad:": "😢",
	":cry:": "😭",
	":laugh:": "😂",
	":love:": "😍",
	":angry:": "😠",
	":mad:": "😡",
	":cool:": "😎",
	":wink:": "😉",
	":tongue:": "😛",
	":surprised:": "😲",
	":shocked:": "😱",
	":confused:": "😕",
	":thinking:": "🤔",
	":sleepy:": "😴",
	":sick:": "🤒",
	":dizzy:": "😵",
	":party:": "🥳",
	":celebrate:": "🎉",
	
	# 手势和动作
	":thumbsup:": "👍",
	":thumbsdown:": "👎",
	":clap:": "👏",
	":wave:": "👋",
	":peace:": "✌️",
	":ok:": "👌",
	":point:": "👉",
	":fist:": "✊",
	":pray:": "🙏",
	":muscle:": "💪",
	
	# 物品和符号
	":fire:": "🔥",
	":star:": "⭐",
	":heart:": "❤️",
	":broken_heart:": "💔",
	":diamond:": "💎",
	":crown:": "👑",
	":gift:": "🎁",
	":cake:": "🎂",
	":coffee:": "☕",
	":pizza:": "🍕",
	":music:": "🎵",
	":game:": "🎮",
	":book:": "📚",
	":phone:": "📱",
	":computer:": "💻",
	":car:": "🚗",
	":house:": "🏠",
	":sun:": "☀️",
	":moon:": "🌙",
	":cloud:": "☁️",
	":rain:": "🌧️",
	":snow:": "❄️",
	":lightning:": "⚡",
	":rainbow:": "🌈"
}

# 表情符号类别
const EMOJI_CATEGORIES = {
	"faces": ["😊", "😢", "😃", "😉", "😛", "😮", "😲", "😐", "😕", "😭", "😂", "😍", "😠", "😡", "😎", "😱", "🤔", "😴", "🤒", "😵", "🥳"],
	"gestures": ["👍", "👎", "👏", "👋", "✌️", "👌", "👉", "✊", "🙏", "💪"],
	"objects": ["🔥", "⭐", "❤️", "💔", "💎", "👑", "🎁", "🎂", "☕", "🍕", "🎵", "🎮", "📚", "📱", "💻"],
	"nature": ["☀️", "🌙", "☁️", "🌧️", "❄️", "⚡", "🌈"],
	"transport": ["🚗", "🏠"]
}

# 最近使用的表情符号
var recent_emojis: Array[String] = []
var max_recent_emojis: int = 20

func _ready():
	"""初始化表情符号管理器"""
	load_recent_emojis()
	print("EmojiManager initialized with ", EMOJI_MAP.size(), " emojis")

## 转换文本中的表情符号
static func convert_text_to_emoji(text: String) -> String:
	"""
	将文本中的表情符号代码转换为实际的表情符号
	@param text: 输入文本
	@return: 转换后的文本
	"""
	var result = text
	
	# 按长度排序，优先匹配长的表情符号代码
	var sorted_keys = EMOJI_MAP.keys()
	sorted_keys.sort_custom(func(a, b): return a.length() > b.length())
	
	for emoji_code in sorted_keys:
		var emoji = EMOJI_MAP[emoji_code]
		result = result.replace(emoji_code, emoji)
	
	return result

## 获取表情符号建议
static func get_emoji_suggestions(partial_code: String) -> Array[Dictionary]:
	"""
	根据部分输入获取表情符号建议
	@param partial_code: 部分表情符号代码
	@return: 建议数组，包含代码和对应的表情符号
	"""
	var suggestions = []
	var partial_lower = partial_code.to_lower()
	
	for emoji_code in EMOJI_MAP:
		if emoji_code.to_lower().begins_with(partial_lower):
			suggestions.append({
				"code": emoji_code,
				"emoji": EMOJI_MAP[emoji_code],
				"description": _get_emoji_description(emoji_code)
			})
	
	# 限制建议数量
	if suggestions.size() > 10:
		suggestions = suggestions.slice(0, 10)
	
	return suggestions

## 获取表情符号描述
static func _get_emoji_description(emoji_code: String) -> String:
	"""
	获取表情符号的描述
	@param emoji_code: 表情符号代码
	@return: 描述文本
	"""
	match emoji_code:
		":smile:", ":)", ":-)":
			return "微笑"
		":sad:", ":(", ":-(":
			return "伤心"
		":laugh:", ":D", ":-D":
			return "大笑"
		":love:":
			return "爱心眼"
		":angry:":
			return "生气"
		":cool:":
			return "酷"
		":wink:", ";)", ";-)":
			return "眨眼"
		":thinking:":
			return "思考"
		":thumbsup:":
			return "点赞"
		":thumbsdown:":
			return "点踩"
		":clap:":
			return "鼓掌"
		":fire:":
			return "火"
		":heart:", "<3":
			return "爱心"
		":star:":
			return "星星"
		_:
			return "表情符号"

## 按类别获取表情符号
static func get_emojis_by_category(category: String) -> Array[String]:
	"""
	获取指定类别的表情符号
	@param category: 类别名称
	@return: 表情符号数组
	"""
	if EMOJI_CATEGORIES.has(category):
		return EMOJI_CATEGORIES[category].duplicate()
	return []

## 获取所有类别
static func get_all_categories() -> Array[String]:
	"""
	获取所有表情符号类别
	@return: 类别名称数组
	"""
	return EMOJI_CATEGORIES.keys()

## 添加到最近使用
func add_to_recent(emoji: String) -> void:
	"""
	添加表情符号到最近使用列表
	@param emoji: 表情符号
	"""
	# 如果已存在，先移除
	if emoji in recent_emojis:
		recent_emojis.erase(emoji)
	
	# 添加到开头
	recent_emojis.push_front(emoji)
	
	# 限制数量
	if recent_emojis.size() > max_recent_emojis:
		recent_emojis.pop_back()
	
	# 保存到本地
	save_recent_emojis()

## 获取最近使用的表情符号
func get_recent_emojis() -> Array[String]:
	"""
	获取最近使用的表情符号
	@return: 最近使用的表情符号数组
	"""
	return recent_emojis.duplicate()

## 检查是否包含表情符号
static func contains_emoji(text: String) -> bool:
	"""
	检查文本是否包含表情符号代码
	@param text: 输入文本
	@return: 是否包含表情符号
	"""
	for emoji_code in EMOJI_MAP:
		if text.contains(emoji_code):
			return true
	return false

## 提取文本中的表情符号代码
static func extract_emoji_codes(text: String) -> Array[String]:
	"""
	提取文本中的所有表情符号代码
	@param text: 输入文本
	@return: 表情符号代码数组
	"""
	var codes = []
	
	for emoji_code in EMOJI_MAP:
		if text.contains(emoji_code):
			codes.append(emoji_code)
	
	return codes

## 获取随机表情符号
static func get_random_emoji(category: String = "") -> String:
	"""
	获取随机表情符号
	@param category: 指定类别（空字符串表示从所有表情符号中选择）
	@return: 随机表情符号
	"""
	var emoji_list = []
	
	if category.is_empty():
		emoji_list = EMOJI_MAP.values()
	elif EMOJI_CATEGORIES.has(category):
		emoji_list = EMOJI_CATEGORIES[category]
	else:
		return "😊"  # 默认表情符号
	
	if emoji_list.size() > 0:
		return emoji_list[randi() % emoji_list.size()]
	
	return "😊"

## 保存最近使用的表情符号
func save_recent_emojis() -> void:
	"""保存最近使用的表情符号到本地文件"""
	var file = FileAccess.open("user://recent_emojis.json", FileAccess.WRITE)
	if file:
		var json_string = JSON.stringify(recent_emojis)
		file.store_string(json_string)
		file.close()

## 加载最近使用的表情符号
func load_recent_emojis() -> void:
	"""从本地文件加载最近使用的表情符号"""
	if not FileAccess.file_exists("user://recent_emojis.json"):
		return
	
	var file = FileAccess.open("user://recent_emojis.json", FileAccess.READ)
	if file:
		var json_string = file.get_as_text()
		file.close()
		
		var json = JSON.new()
		var parse_result = json.parse(json_string)
		
		if parse_result == OK and json.data is Array:
			recent_emojis = json.data
			print("Loaded ", recent_emojis.size(), " recent emojis")

## 创建表情符号选择器数据
func create_emoji_picker_data() -> Dictionary:
	"""
	创建表情符号选择器所需的数据
	@return: 包含分类表情符号的字典
	"""
	var picker_data = {
		"recent": get_recent_emojis(),
		"categories": {}
	}
	
	for category in EMOJI_CATEGORIES:
		picker_data.categories[category] = EMOJI_CATEGORIES[category].duplicate()
	
	return picker_data