This commit is contained in:
parent
249a38e6b9
commit
97a8bb09fe
|
|
@ -7,16 +7,27 @@ Pydantic AI 聊天智能体和相关模块
|
||||||
from enum import StrEnum
|
from enum import StrEnum
|
||||||
from typing import AsyncGenerator, List, Optional, Union
|
from typing import AsyncGenerator, List, Optional, Union
|
||||||
from uuid import uuid4
|
from uuid import uuid4
|
||||||
from pydantic_ai import Agent as PydanticAIAgent
|
from numpy._core.numeric import str_
|
||||||
|
from pydantic_ai import Agent
|
||||||
from pydantic_ai.capabilities import AgentCapability
|
from pydantic_ai.capabilities import AgentCapability
|
||||||
from pydantic_ai.messages import (
|
from pydantic_ai.messages import (
|
||||||
AgentStreamEvent,
|
AgentStreamEvent,
|
||||||
ModelMessage,
|
ModelMessage,
|
||||||
PartStartEvent,
|
PartStartEvent,
|
||||||
TextPart,
|
|
||||||
ThinkingPart,
|
ThinkingPart,
|
||||||
|
ToolSearchCallPart,
|
||||||
|
ThinkingPartDelta,
|
||||||
|
ToolCallPart,
|
||||||
LoadCapabilityCallPart,
|
LoadCapabilityCallPart,
|
||||||
|
TextPartDelta,
|
||||||
|
ToolCallPartDelta,
|
||||||
|
FunctionToolResultEvent,
|
||||||
|
PartDeltaEvent,
|
||||||
|
TextPart,
|
||||||
|
PartEndEvent,
|
||||||
)
|
)
|
||||||
|
|
||||||
|
|
||||||
from pydantic_ai.models.openai import OpenAIChatModel
|
from pydantic_ai.models.openai import OpenAIChatModel
|
||||||
from pydantic_ai.output import OutputSpec
|
from pydantic_ai.output import OutputSpec
|
||||||
from pydantic_ai.providers.openai import OpenAIProvider
|
from pydantic_ai.providers.openai import OpenAIProvider
|
||||||
|
|
@ -41,32 +52,19 @@ DEFAULT_INSTRUCTIONS: str = """
|
||||||
"""
|
"""
|
||||||
|
|
||||||
|
|
||||||
class Kind(StrEnum):
|
|
||||||
"""种类"""
|
|
||||||
|
|
||||||
TEXTSTART = "text_start"
|
|
||||||
THINKINGSTART = "thinking_start"
|
|
||||||
|
|
||||||
TOOL_NAME = "tool_name"
|
|
||||||
TOOL_ARGS = "tool_args"
|
|
||||||
TOOL_RETURN = "tool_return"
|
|
||||||
FINISHED = "finished"
|
|
||||||
ERROR = "error"
|
|
||||||
|
|
||||||
|
|
||||||
class Event(BaseModel):
|
class Event(BaseModel):
|
||||||
"""
|
"""
|
||||||
片段类
|
事件类
|
||||||
"""
|
"""
|
||||||
|
|
||||||
part_index: Optional[int] = Field(default=None, description="片段索引")
|
event_kind: str = Field(..., description="事件种类")
|
||||||
kind: Kind = Field(..., description="事件种类")
|
|
||||||
tool_name: Optional[str] = Field(default=None, description="工具名称")
|
|
||||||
args: Optional[LoadCapabilityArgs] = Field(default=None, description="工具参数")
|
|
||||||
content: Optional[str] = Field(default=None, description="事件内容")
|
content: Optional[str] = Field(default=None, description="事件内容")
|
||||||
|
part_index: Optional[int] = Field(default=None, description="分片索引")
|
||||||
|
part_kind: str = Field(..., description="分片种类")
|
||||||
|
tool_name: Optional[str] = Field(default=None, description="工具名称")
|
||||||
|
|
||||||
|
|
||||||
class Agent:
|
class AIAgent:
|
||||||
"""
|
"""
|
||||||
基于 Pydantic AI 封装的智能体
|
基于 Pydantic AI 封装的智能体
|
||||||
"""
|
"""
|
||||||
|
|
@ -91,7 +89,10 @@ class Agent:
|
||||||
# 聊天唯一标识
|
# 聊天唯一标识
|
||||||
self.chat_id = chat_id
|
self.chat_id = chat_id
|
||||||
|
|
||||||
# 一次聊天（chat）包含若干论对话（dialog），每轮对话包含用户提示词（user_prompt）和输出（output）。其中，输出包含若干片段（Part）
|
# 一次聊天（chat）包含若干论对话（dialog），每轮对话包含用户提示词（user_prompt）和输出（output）。其中，输出包含若干分片（Part）
|
||||||
|
|
||||||
|
# 本轮对话工具调用唯一标识与片段索引映射表
|
||||||
|
self.tool_call_ids: dict[str, int] = {}
|
||||||
|
|
||||||
# 本轮对话新增消息列表
|
# 本轮对话新增消息列表
|
||||||
self.new_messages: List[ModelMessage] = []
|
self.new_messages: List[ModelMessage] = []
|
||||||
|
|
@ -101,7 +102,7 @@ class Agent:
|
||||||
instructions = DEFAULT_INSTRUCTIONS
|
instructions = DEFAULT_INSTRUCTIONS
|
||||||
|
|
||||||
# 初始化智能体
|
# 初始化智能体
|
||||||
self.agent = PydanticAIAgent(
|
self.agent = Agent(
|
||||||
model=OpenAIChatModel(
|
model=OpenAIChatModel(
|
||||||
model_name="deepseek-v4-flash",
|
model_name="deepseek-v4-flash",
|
||||||
provider=OpenAIProvider(
|
provider=OpenAIProvider(
|
||||||
|
|
@ -132,24 +133,134 @@ class Agent:
|
||||||
) as events:
|
) as events:
|
||||||
async for event in events:
|
async for event in events:
|
||||||
match event:
|
match event:
|
||||||
case PartStartEvent():
|
# ========== 分片开始事件 ==========
|
||||||
part = event.part
|
case PartStartEvent(event_kind=event_kind, index=index, part=part):
|
||||||
match part:
|
match part:
|
||||||
case TextPart(content=content):
|
# 思考分片开始事件
|
||||||
|
case ThinkingPart(part_kind=part_kind, content=content):
|
||||||
yield Event(
|
yield Event(
|
||||||
kind=Kind.TEXTSTART,
|
event_kind=event_kind,
|
||||||
part_index=event.index,
|
|
||||||
content=content,
|
content=content,
|
||||||
|
part_index=index,
|
||||||
|
part_kind=part_kind,
|
||||||
)
|
)
|
||||||
case ThinkingPart(content=content):
|
# 检索工具分片开始事件
|
||||||
|
case ToolSearchCallPart(
|
||||||
|
part_kind=part_kind, tool_call_id=tool_call_id, tool_name=tool_name
|
||||||
|
):
|
||||||
|
# 记录工具调用唯一标识与片段索引映射
|
||||||
|
self.tool_call_ids[tool_call_id] = index
|
||||||
yield Event(
|
yield Event(
|
||||||
kind=Kind.THINKINGSTART,
|
event_kind=event_kind,
|
||||||
part_index=event.index,
|
part_index=index,
|
||||||
|
part_kind=part_kind,
|
||||||
|
tool_name=tool_name,
|
||||||
|
)
|
||||||
|
# 加载能力分片开始事件
|
||||||
|
case LoadCapabilityCallPart(
|
||||||
|
part_kind=part_kind, tool_call_id=tool_call_id, tool_name=tool_name
|
||||||
|
):
|
||||||
|
# 记录工具调用唯一标识与片段索引映射
|
||||||
|
self.tool_call_ids[tool_call_id] = index
|
||||||
|
yield Event(
|
||||||
|
event_kind=event_kind,
|
||||||
|
part_index=index,
|
||||||
|
part_kind=part_kind,
|
||||||
|
tool_name=tool_name,
|
||||||
|
)
|
||||||
|
# 调用工具分片开始事件
|
||||||
|
case ToolCallPart(
|
||||||
|
part_kind=part_kind,
|
||||||
|
tool_call_id=tool_call_id,
|
||||||
|
tool_name=tool_name,
|
||||||
|
):
|
||||||
|
# 记录工具调用唯一标识与片段索引映射
|
||||||
|
self.tool_call_ids[tool_call_id] = index
|
||||||
|
yield Event(
|
||||||
|
event_kind=event_kind,
|
||||||
|
part_index=index,
|
||||||
|
part_kind=part_kind,
|
||||||
|
tool_name=tool_name,
|
||||||
|
)
|
||||||
|
# 文本分片开始事件
|
||||||
|
case TextPart(part_kind=part_kind, content=content):
|
||||||
|
yield Event(
|
||||||
|
event_kind=event_kind,
|
||||||
content=content,
|
content=content,
|
||||||
|
part_index=index,
|
||||||
|
part_kind=part_kind,
|
||||||
)
|
)
|
||||||
case LoadCapabilityCallPart():
|
|
||||||
yield Event(
|
|
||||||
kind=Kind.TOOL_NAME,
|
|
||||||
part_index=event.index,
|
|
||||||
|
|
||||||
|
# ========== 分片增量事件（前端仅就文本片段实现打字机效果） ==========
|
||||||
|
case PartDeltaEvent(
|
||||||
|
event_kind=event_kind, index=index, delta=delta
|
||||||
|
):
|
||||||
|
match delta:
|
||||||
|
# 文本分片增量事件
|
||||||
|
case TextPartDelta(
|
||||||
|
part_delta_kind=part_delta_kind,
|
||||||
|
content_delta=content_delta,
|
||||||
|
):
|
||||||
|
yield Event(
|
||||||
|
event_kind=event_kind,
|
||||||
|
content=content_delta, # 增量
|
||||||
|
part_index=index,
|
||||||
|
part_kind=part_delta_kind,
|
||||||
)
|
)
|
||||||
|
|
||||||
|
# ========== 分片结束事件 ==========
|
||||||
|
case PartEndEvent(event_kind=event_kind, index=index, part=part):
|
||||||
|
match part:
|
||||||
|
# 思考分片结束事件
|
||||||
|
case ThinkingPart(part_kind=part_kind, content=content):
|
||||||
|
yield Event(
|
||||||
|
event_kind=event_kind,
|
||||||
|
content=content,
|
||||||
|
part_index=index,
|
||||||
|
part_kind=part_kind,
|
||||||
|
)
|
||||||
|
# 检索工具分片结束事件
|
||||||
|
case ToolSearchCallPart(part_kind=part_kind, tool_name=tool_name):
|
||||||
|
yield Event(
|
||||||
|
event_kind=event_kind,
|
||||||
|
part_index=index,
|
||||||
|
part_kind=part_kind,
|
||||||
|
tool_name=tool_name,
|
||||||
|
)
|
||||||
|
# 加载能力分片结束事件
|
||||||
|
case LoadCapabilityCallPart(part_kind=part_kind, tool_name=tool_name):
|
||||||
|
yield Event(
|
||||||
|
event_kind=event_kind,
|
||||||
|
part_index=index,
|
||||||
|
part_kind=part_kind,
|
||||||
|
tool_name=tool_name,
|
||||||
|
)
|
||||||
|
# 调用工具分片结束事件
|
||||||
|
case ToolCallPart(part_kind=part_kind, tool_name=tool_name):
|
||||||
|
yield Event(
|
||||||
|
event_kind=event_kind,
|
||||||
|
part_index=index,
|
||||||
|
part_kind=part_kind,
|
||||||
|
tool_name=tool_name,
|
||||||
|
)
|
||||||
|
# 文本分片结束事件
|
||||||
|
case TextPart(part_kind=part_kind):
|
||||||
|
yield Event(
|
||||||
|
event_kind=event_kind,
|
||||||
|
part_index=index,
|
||||||
|
part_kind=part_kind,
|
||||||
|
)
|
||||||
|
# ========== 函数工具结果回调事件 ==========
|
||||||
|
case FunctionToolResultEvent(
|
||||||
|
event_kind=event_kind,
|
||||||
|
content=content,
|
||||||
|
part=part,
|
||||||
|
):
|
||||||
|
yield Event(
|
||||||
|
event_kind=event_kind,
|
||||||
|
content=content,
|
||||||
|
part_index=index,
|
||||||
|
part_kind=part_kind,
|
||||||
|
tool_name=tool_name,
|
||||||
|
)
|
||||||
|
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue