from typing import Any


import inspect
from .config_loader import global_config

comm = global_config.bot.get("command")

class CommandManager:
    def __init__(self, prefixes=(tuple[Any, ...] (comm))):
        self.prefixes = prefixes
        self.commands = {} # 存储指令函数

    def command(self, name: str):
        """装饰器：注册指令"""
        def decorator(func):
            self.commands[name] = func
            return func
        return decorator

    async def handle_message(self, bot, event):
        """解析并分发指令"""
        raw_text = event.raw_message.strip()
        
        # 1. 检查前缀
        prefix_found = None
        for p in self.prefixes:
            if raw_text.startswith(p):
                prefix_found = p
                break
        
        if not prefix_found:
            return # 不是指令，跳过

        # 2. 拆分指令和参数
        full_cmd = raw_text[len(prefix_found):].split()
        if not full_cmd:
            return
        
        cmd_name = full_cmd[0]
        args = full_cmd[1:]

        # 3. 查找并执行
        if cmd_name in self.commands:
            func = self.commands[cmd_name]
            # 自动注入参数 (判断函数是否需要 args)
            sig = inspect.signature(func)
            if "args" in sig.parameters:
                await func(bot, event, args)
            else:
                await func(bot, event)

# 实例化全局管理器
qianzhui = global_config.bot.get("command")
matcher = CommandManager(prefixes=(tuple[Any, ...] (comm)))