更新会话状态、模型定义、订票工作流

agent/application/states/conversation.py

@@ -25,7 +25,7 @@ import reflex as rx
 
 from application.states.database import DatabaseState
 from application.states.models import (
-    AgentRunEvent,
+    AgentRunOutputEvent,
     Conversation,
     ConversationHistoryItem,
     Message,
@@ -461,8 +461,8 @@ class ConversationState(rx.State):
                             yield  # 通知前端更新渲染
                             messages.append(message)
 
-                # ========== 智能体运行事件 ==========
-                case AgentRunEvent(content=content):
+                # ========== 智能体运行输出事件 ==========
+                case AgentRunOutputEvent(content=content):
                     # 构建消息实例
                     message = Message(
                         type=MessageType.TEXT,

agent/application/states/models.py

@@ -11,7 +11,6 @@ from pydantic_ai import RunUsage
 from pydantic_ai._uuid import uuid7
 
 
-
 class NoResult(BaseModel):
     """
     无结果类
@@ -19,15 +18,35 @@ class NoResult(BaseModel):
 
     ...
 
-class AgentRunEvent(BaseModel):
+
+class InteractionType(StrEnum):
     """
-    智能体运行事件类
+    交互类型枚举
+    """
+
+    INPUT = "input"
+
+
+class Approval(BaseModel):
+    """
+    审批类
+    """
+
+    tool_call_id: str = Field(..., description="工具调用唯一标识")
+    tool_name: str = Field(..., description="工具名称")
+    interaction_type: InteractionType = Field(..., description="交互类型")
+
+
+class AgentRunOutputEvent(BaseModel):
+    """
+    智能体运行输出事件类
     """
 
     content: str = Field(
         default="",
         description="智能体运行内容",
     )
+    approvals: list[Approval] = Field(default_factory=list, description="审批列表")
 
 
 class MessageType(StrEnum):

agent/application/workshop/book_flight.py

@@ -3,9 +3,8 @@
 预定航班工作流（范式）
 """
 import datetime
-from re import I
-from typing import AsyncGenerator, cast, Any
-from dataclasses import replace
+from typing import Any, AsyncGenerator, cast
+
 from pydantic import BaseModel, Field, field_validator
 from pydantic_ai import (
     Agent,
@@ -18,7 +17,6 @@ from pydantic_ai import (
     RunUsage,
     UsageLimits,
 )
-from pydantic_ai.agent.abstract import S
 from pydantic_ai.messages import (
     AgentStreamEvent,
     FunctionToolResultEvent,
@@ -27,9 +25,13 @@ from pydantic_ai.messages import (
     ToolReturnPart,
 )
 from pydantic_ai.run import AgentRunResult, AgentRunResultEvent
-from reflex.event import T
 
-from application.states.models import AgentRunEvent, NoResult
+from application.states.models import (
+    AgentRunOutputEvent,
+    NoResult,
+    InteractionType,
+    Approval,
+)
 from application.workshop.models import (
     DEEPSEEK_V4_FLASH_MODEL,
     DEEPSEEK_V4_FLASH_MODEL_SETTINGS,
@@ -204,7 +206,10 @@ async def search_flights(ctx: RunContext[Deps]) -> list[Flight]:
     return searched_flights
 
 
-@agent.tool(name="预定航班")
+@agent.tool(
+    name="预定航班",
+    requires_approval=True,
+)
 async def book_flight(ctx: RunContext[Deps]) -> Flight | NoResult:
     """
     预定航班
@@ -212,9 +217,6 @@ async def book_flight(ctx: RunContext[Deps]) -> Flight | NoResult:
     if (searched_flights := ctx.deps.searched_flights) is None:
         raise ModelRetry("必须先使用 search_flights 查询航班")
 
-    if not ctx.tool_call_approved:
-        raise ApprovalRequired(metadata={"content": "您要预定哪班航班？"})
-
     # 提取到的航班号
     extracted_flight_number = (
         await extraction_flight_number_agent.run(
@@ -282,7 +284,7 @@ async def run_stream_events(
 ) -> AsyncGenerator[
     AgentStreamEvent
     | AgentRunResultEvent[Flight | NoResult | DeferredToolRequests]
-    | AgentRunEvent
+    | AgentRunOutputEvent
     | None,
 ]:
     """
@@ -330,7 +332,6 @@ async def run_stream_events(
                                         event.part.content = (
                                             "未提取到航班号，请检查后重试"
                                         )
-
                                     if isinstance(content, Flight):
                                         event.part.content = f"已预定航班：\n{content.number} {content.airfare}$ 于 {content.date.strftime('%Y-%m-%d')} 从 {content.origin_airport_code} 到 {content.destination_airport_code}\n"
                                     yield event
@@ -341,9 +342,20 @@ async def run_stream_events(
                     match result:
                         case AgentRunResult(output=output):
                             match output:
-                                case Flight():
-                                    yield AgentRunEvent(content="预定成功")
+                                case Flight() | NoResult():
+                                    yield event
 
-                                case DeferredToolRequests(approvals=approvals) as t:
-                                    t.metadata = {"1": {"Success": "1"}}
-                    yield event
+                                case DeferredToolRequests(approvals=approvals):
+                                    yield AgentRunOutputEvent(
+                                        content="请输入航班号",
+                                        approvals=[
+                                            Approval(
+                                                tool_call_id=approval.tool_call_id,
+                                                tool_name=approval.tool_name,
+                                                interaction_type=InteractionType.INPUT,
+                                            )
+                                            for approval in approvals
+                                            if approval.tool_name == "预定航班"
+                                        ],
+                                    )
+                                    yield event