组件：命令

➜  HelloPlugin > lbp comp Command
Generating component Command...
Command name: info
Command description: Show information of the query
Component Command generated successfully.
组件 Command 生成成功。

➜  HelloPlugin > tree
...
├── components
│   ├── __init__.py
│   ├── commands
│   │   ├── __init__.py
│   │   ├── info.py
│   │   └── info.yaml
...

apiVersion: v1  # 请勿修改
kind: Command  # 请勿修改
metadata:
  name: info  # 命令名称，在使用时，用户会通过 !info 触发该命令
  label:  # 命令显示名称，用于显示在 LangBot 的 UI 上，支持多语言
    en_US: Info
    zh_Hans: Info
  description:  # 命令描述，用于显示在 LangBot 的 UI 上，支持多语言。可选。
    en_US: 'Show information of the query'
    zh_Hans: '发送此次消息的详细信息'
spec:
execution:
  python:
    path: info.py  # 命令处理程序，请勿修改
    attr: Info  # 命令处理程序的类名，与 info.py 中的类名一致

# Auto generated by LangBot Plugin SDK.
# Please refer to https://docs.langbot.app/en/plugin/dev/tutor.html for more details.
from __future__ import annotations

from typing import Any, AsyncGenerator

from langbot_plugin.api.definition.components.command.command import Command, Subcommand
from langbot_plugin.api.entities.builtin.command.context import ExecuteContext, CommandReturn


class Info(Command):
    
    async def initialize(self):
        await super().initialize()
        
        "Fill with your code here"

...
class Info(Command):
    
    async def initialize(self):
        await super().initialize()
        
        @self.subcommand(
            name="",  # 空字符串表示根命令
            help="Show information of the query", # 命令帮助信息
            usage="info", # 命令使用示例，显示在命令帮助信息中
            aliases=["i"], # 命令别名
        )
        async def send(self, context: ExecuteContext) -> AsyncGenerator[CommandReturn, None]:
            print(context)

            reply_text = f"Query ID: {context.query_id}\n"
            reply_text += f"command: {context.command}\n"
            reply_text += f"command_text: {context.command_text}\n"
            reply_text += f"params: {context.params}\n"
            reply_text += f"crt_params: {context.crt_params}\n"
            reply_text += f"privilege: {context.privilege}\n"
            reply_text += f"session: {context.session.launcher_type.value}_{context.session.launcher_id}\n"
            
            yield CommandReturn(
                text=reply_text,
            )

        @self.subcommand(
            name="field",
            help="Show information of the field",
            usage="info field",
            aliases=["f"],
        )
        async def field(self, context: ExecuteContext) -> AsyncGenerator[CommandReturn, None]:
            print(context)

            field_name = context.crt_params[0]
            field_value = getattr(context, field_name)

            yield CommandReturn(
                text=f"{field_name}: {field_value}",
            )

class ExecuteContext(pydantic.BaseModel):
    """单次命令执行上下文"""

    query_id: int
    """请求ID"""

    session: provider_session.Session
    """本次消息所属的会话对象"""

    command_text: str
    """命令完整文本"""

    command: str
    """命令名称"""

    crt_command: str
    """当前命令
    
    多级命令中crt_command为当前命令，command为根命令。
    例如：!plugin on Webwlkr
    处理到plugin时，command为plugin，crt_command为plugin
    处理到on时，command为plugin，crt_command为on
    """

    params: list[str]
    """命令参数
    
    整个命令以空格分割后的参数列表
    """

    crt_params: list[str]
    """当前命令参数

    多级命令中crt_params为当前命令参数，params为根命令参数。
    例如：!plugin on Webwlkr
    处理到plugin时，params为['on', 'Webwlkr']，crt_params为['on', 'Webwlkr']
    处理到on时，params为['on', 'Webwlkr']，crt_params为['Webwlkr']
    """

    privilege: int
    """会话权限级别"""

    ...

yield CommandReturn(
    text=reply_text,
)

yield CommandReturn(
    image_url=image_url,
)