112 lines
3.2 KiB
Python
112 lines
3.2 KiB
Python
# -*- coding: utf-8 -*-
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"""
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智能体模块
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"""
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# 列举导入模块
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from pathlib import Path
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import sys
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from typing import List, Optional
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from uuid import uuid4
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from starlette.applications import Starlette
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from pydantic_ai import Agent, AgentRunResult
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from pydantic_ai.models.openai import OpenAIChatModel
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from pydantic_ai.output import OutputSpec
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from pydantic_ai.providers.openai import OpenAIProvider
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from pydantic_ai_skills import SkillsToolset
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sys.path.append(Path(__file__).parent.as_posix())
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from memory import Memory
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class BaseAgent:
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"""
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通用智能体基类，支持：
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1）实例智能体
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2）异步运行
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"""
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def __init__(
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self,
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instructions: str,
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output_type: OutputSpec = str,
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skill_name: Optional[str] = None,
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):
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"""
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初始化智能体
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:param instructions: 指令
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:param output_type: 输出类型
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:param skill_name: 技能名称，默认不使用技能
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:return: 智能体实例
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"""
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# 生成会话唯一标识
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self.session_id = uuid4().hex.lower()
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# 实例智能体
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self.agent = self._instantiate_agent(
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skill_name=skill_name,
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instructions=instructions,
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output_type=output_type,
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)
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# 实例记忆体
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self.memory = Memory()
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def _instantiate_agent(
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self, skill_name: Optional[str], instructions: str, output_type: OutputSpec
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) -> Agent:
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"""
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实例智能体
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:param skill_name: 技能名称
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:param instructions: 指令
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:param output_type: 输出类型
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:return: 智能体实例
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"""
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# 若技能名称为空则技能集合为 None，若技能名称非空则构建技能路径
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if not skill_name:
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toolsets = None
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else:
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toolsets = [
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SkillsToolset(
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directories=[Path(__file__).parent.parent / "skills" / skill_name]
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)
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]
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agent = Agent(
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toolsets=toolsets,
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model=OpenAIChatModel(
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model_name="deepseek-v4-flash",
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provider=OpenAIProvider(
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base_url="https://tokenhub.tencentmaas.com/v1",
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api_key="sk-D9Y1mCe8VlvNqLuSC4mAjqEwxJ2nW4C0h8a7EPn8kg9RLsHq",
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),
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),
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instructions=instructions,
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output_type=output_type,
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)
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return agent
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async def run(self, user_prompt: str | List[str]) -> AgentRunResult:
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"""
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异步运行
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:param user_prompt: 用户提示词
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:return: 智能体回复
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"""
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# 查询会话历史消息
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message_history = self.memory.read(session_id=self.session_id)
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result = await self.agent.run(
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user_prompt=user_prompt, message_history=message_history
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)
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# 记录会话历史消息
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self.memory.create(
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session_id=self.session_id,
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dialogue_message=result.new_messages(),
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)
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return result
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def start_web_service(self) -> Starlette:
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"""
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实例 Web 服务
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:return: Starlette 实例
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"""
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return self.agent.to_web()
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