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ThearchyHelios
f0fd63f0b9
用户的原话是「copilot（包括问答）可以是侧边栏的效果」「显示他的简要思考节点， 使得用户知道他大致在想什么，以及用了哪些工具」。 画布右栏从「运行 / 属性 → 时间线 / 成果 / 事件」（两层嵌套 5 个视图）变成 「助手 / 属性」一层。助手栏里是一条流：你让它做什么、它做了什么、结果是什么。 Copilot 建图和跑图在协议上完全无关（SSE 操作流 vs 事件 WebSocket，不共享 seq 和 node_id），但对用户是一件事的两半，decode.ts 把两种流译成同一种 Step 之后才能排进同一条时间轴。 Copilot 不再是弹窗。弹窗的问题不是样式：每改一次图都要重开一次，关掉之后 需求文本就没了，想微调只能重打；而画布左下角那条浮条（z-30）和 Toast （z-100）、Modal（z-50）三层各自为政，本身也是重复的一份 Copilot 状态渲染。 两个都删了，输入框就在栏里，说完一句接着说下一句。右栏没删——它是发起运行 和处理审批的唯一入口，RunLauncher 原样保留，只是跑起来会自动收起给执行过程 让位。tab 用 hidden 切换而不是卸载，不然点一下「属性」看个节点再切回来， 输入框草稿和展开状态全丢。 问数据页和运行页换成同一个 AssistantStream + 同一个 decode.ts。RunPanel 里 那套平行的 EVENT_META + describe() 删了：留着两套翻译，同一次运行在不同页面 会读出不同的故事，而用户没法判断哪个是真的。同理合并了两个耗时格式化函数 （画布节点显示"0ms"，右边同一步什么都不显示，两块还并排放着）。运行页列表 加了内容摘要——原本每行只有"临时图 · 1.2s · 340 tok"，十条长得一模一样， 要分清哪条是哪条只能挨个点开。 跑真实运行时发现两个缺陷： 1. 后端丢事件（app/core/bus.py）。WebSocket 先读历史、再订阅，两步之间图 正好跑出来的事件既不在历史里也不在实时流里，永远丢了。而 subscribe() 是 异步生成器，真正注册还要等到第一次迭代，窗口比看上去更大。实测一次跑图 开头的 node.finished/node.started 消失，界面上表现为某个节点永远在转圈、 它的子步骤跑到了顶层。改成先 attach 占位、再读历史，重叠部分按 seq 去重。 tests/test_bus_attach.py 里有一条刻画旧行为的测试，说明这个窗口确实存在。 2. 循环里的多轮审批被算错。我在 S1 按内容去重，但三轮审批的 title 一模一样， 和 LangGraph 的重放无法区分——结果第 2、3 次真实审批被当成重放吞掉，而 三次"你驳回了/你放行了"各自成行。改成开/闭配对：开着就是同一次，闭了才是 新一次；决定折进那条审批行而不是另起一行。真实运行（驳回 → 改写 → 再驳回 → 改写 → 放行）已收进 fixtures。 验证：三层各守一件事，共 76 条断言全过。check-decode 守翻译（含新的多轮审批 和截断结果集），check-stream 守渲染，新增 check-ui 守"接起来还对不对"——真 浏览器真后端，包括「切走再切回来草稿还在」「唯一的运行入口还在」「原始事件 切得到也切得回」。另外真跑了一次带三轮审批的图和两次 Copilot 生成（60s， deepseek-v4-pro），截图逐帧看过。后端 78 个测试全过。
480 lines
17 KiB
Python
480 lines
17 KiB
Python
from __future__ import annotations
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import asyncio
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import contextlib
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from typing import Any
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from fastapi import APIRouter, Depends, Header, HTTPException, Query, WebSocket, WebSocketDisconnect
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from pydantic import BaseModel, Field
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from sqlalchemy import select
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from sqlalchemy.ext.asyncio import AsyncSession
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from sqlalchemy import select as _select
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from app.core.bus import bus
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from app.core import artifact_store
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from app.db.base import SessionLocal, get_session
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from app.db.models import Approval, Artifact, Run, RunEvent, Workflow, WorkflowVersion
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from app.engine.governance import unresolved_caliber_upgrades
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from app.engine.runner import run_manager
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from app.engine.schema import GraphSpec
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router = APIRouter(prefix="/api/runs", tags=["runs"])
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class StartRunIn(BaseModel):
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workflow_id: str | None = None
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graph: dict[str, Any] | None = None # 直接跑一张未保存的图（画布上的"试运行"）
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input: dict[str, Any] = Field(default_factory=dict)
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memory_scope: str = "default"
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collection: str = "default"
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# formal：从已发布的不可变版本发起，可复现可出具；exploratory：随便玩
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run_class: str = "exploratory"
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version: int | None = None # formal 时可指定版本，默认用已发布版本
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class RunOut(BaseModel):
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id: str
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workflow_id: str | None
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workflow_name: str
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status: str
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input: dict[str, Any]
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output: dict[str, Any]
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error: str | None
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usage: dict[str, Any]
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run_class: str | None = "exploratory"
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version: int | None = None
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version_hash: str | None = None
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manifest_hash: str | None = None
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started_by: str | None = None
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created_at: Any = None
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started_at: Any = None
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finished_at: Any = None
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model_config = {"from_attributes": True}
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@router.post("", response_model=RunOut, status_code=201)
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async def start_run(
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payload: StartRunIn,
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session: AsyncSession = Depends(get_session),
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x_actor: str | None = Header(default=None),
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) -> Run:
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actor = (x_actor or "").strip() or None
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name = "临时图"
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version: int | None = None
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version_hash: str | None = None
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if payload.run_class == "formal":
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# 正式运行的全部语义就这一条规则：必须引用一个不可变的已发布版本。
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# 传裸 graph、或工作流还没发布过，都进不了 formal。
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if not payload.workflow_id:
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raise HTTPException(400, "正式运行必须指定 workflow_id")
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if payload.graph is not None:
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raise HTTPException(400, "正式运行不接受临时 graph——先保存并发布版本")
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workflow = await session.get(Workflow, payload.workflow_id)
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if not workflow:
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raise HTTPException(404, "工作流不存在")
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# 只看 published_version：status 反映的是当前画布（改过图就退回 draft），
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# 而 formal 跑的是已发布的那一版，两者本来就可以不一致
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if not workflow.published_version:
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raise HTTPException(409, f"「{workflow.name}」还没有发布版本，先在编排页发布")
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version = payload.version or workflow.published_version
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# "不可变"和"过过闸"是两件事。快照确实不可变，但 PATCH 保存出来的
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# 草稿版本同样有快照——只认 version 存不存在的话，工作流只要发布过
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# 任意一个版本，之后所有草稿都能以 formal 身份启动，发布期的
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# validate_graph + lint_for_publish 全部绕过。
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if version != workflow.published_version:
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raise HTTPException(
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409,
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f"v{version} 不是当前发布版本（v{workflow.published_version}）。"
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"正式运行只能引用发布过的版本——要跑这一版就先发布它。",
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)
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snapshot = (
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await session.execute(
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_select(WorkflowVersion).where(
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WorkflowVersion.workflow_id == workflow.id,
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WorkflowVersion.version == version,
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)
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)
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).scalar_one_or_none()
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if not snapshot:
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raise HTTPException(404, f"版本 v{version} 不存在")
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graph = snapshot.graph
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version_hash = snapshot.graph_hash or artifact_store.graph_hash(graph)
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name = workflow.name
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# 口径升版是被迫处置的事件：钉住的方法卡有新版本而未声明策略，拒绝启动
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spec = GraphSpec.model_validate(graph)
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errors, upgrade_events = await unresolved_caliber_upgrades(session, spec)
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if errors:
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raise HTTPException(409, "；".join(errors))
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else:
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graph = payload.graph
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upgrade_events = []
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if payload.workflow_id:
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workflow = await session.get(Workflow, payload.workflow_id)
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if not workflow:
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raise HTTPException(404, "工作流不存在")
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graph = graph or workflow.graph
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name = workflow.name
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if not graph:
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raise HTTPException(400, "需要提供 workflow_id 或 graph")
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try:
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run = await run_manager.start(
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graph=graph,
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input_payload=payload.input,
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workflow_id=payload.workflow_id,
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workflow_name=name,
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memory_scope=payload.memory_scope,
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collection=payload.collection,
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run_class="formal" if payload.run_class == "formal" else "exploratory",
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version=version,
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version_hash=version_hash,
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started_by=actor,
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)
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except ValueError as e:
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raise HTTPException(400, str(e)) from e
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# 已声明策略的升版记入事件流，出具物上能看到"这期换口径了、怎么处置的"
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for ev in upgrade_events:
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payload_ev = dict(ev)
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node = payload_ev.pop("node_id", None)
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await run_manager.note(run.id, "caliber.upgrade", node_id=node, **payload_ev)
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return run
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@router.get("", response_model=list[RunOut])
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async def list_runs(
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workflow_id: str | None = None,
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status: str | None = None,
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limit: int = Query(default=50, le=200),
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session: AsyncSession = Depends(get_session),
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) -> list[Run]:
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stmt = select(Run).order_by(Run.created_at.desc()).limit(limit)
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if workflow_id:
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stmt = stmt.where(Run.workflow_id == workflow_id)
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if status:
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stmt = stmt.where(Run.status == status)
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return list((await session.execute(stmt)).scalars())
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@router.get("/{run_id}", response_model=RunOut)
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async def get_run(run_id: str, session: AsyncSession = Depends(get_session)) -> Run:
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run = await session.get(Run, run_id)
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if not run:
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raise HTTPException(404, "运行记录不存在")
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return run
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@router.get("/{run_id}/events")
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async def get_events(
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run_id: str,
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after: int = 0,
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session: AsyncSession = Depends(get_session),
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) -> list[dict[str, Any]]:
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"""拉历史事件。刷新页面后重建时间线用这个，再接 WebSocket 续上实时流。"""
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rows = await session.execute(
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select(RunEvent)
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.where(RunEvent.run_id == run_id, RunEvent.seq > after)
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.order_by(RunEvent.seq)
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)
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return [
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{
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"id": e.id,
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"run_id": e.run_id,
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"seq": e.seq,
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"type": e.type,
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"node_id": e.node_id,
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"ts": e.ts,
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"data": e.data,
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}
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for e in rows.scalars()
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]
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@router.get("/{run_id}/artifacts")
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async def list_artifacts(
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run_id: str, session: AsyncSession = Depends(get_session)
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) -> list[dict[str, Any]]:
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"""这次运行产出的全部工件引用。审阅出具物时从这里下钻到完整证据。"""
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rows = await session.execute(
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select(Artifact).where(Artifact.run_id == run_id).order_by(Artifact.created_at)
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)
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return [
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{
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"id": a.id,
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"kind": a.kind,
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"node_id": a.node_id,
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"size": a.size,
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"meta": a.meta,
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"created_at": a.created_at.isoformat() if a.created_at else None,
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}
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for a in rows.scalars()
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]
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@router.post("/{run_id}/cancel")
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async def cancel_run(run_id: str) -> dict[str, Any]:
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stopped = await run_manager.cancel(run_id)
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if not stopped:
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raise HTTPException(409, "该运行当前不在执行中")
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return {"ok": True}
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class ResumeIn(BaseModel):
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response: Any = None
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approval_id: str | None = None
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@router.post("/{run_id}/resume", response_model=RunOut)
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async def resume_run(
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run_id: str, payload: ResumeIn, x_actor: str | None = Header(default=None)
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) -> Run:
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try:
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# approval_id 以前定义了却从没传下去——一次运行里有多条待审批时，
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# 引擎无从知道这次回复的是哪一条
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return await run_manager.resume(
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run_id, payload.response,
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approval_id=payload.approval_id,
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actor=(x_actor or "").strip() or None,
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)
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except KeyError as e:
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raise HTTPException(404, str(e)) from e
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except ValueError as e:
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raise HTTPException(409, str(e)) from e
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@router.get("/{run_id}/state")
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async def get_state(run_id: str) -> dict[str, Any]:
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"""读取 checkpoint 里的当前状态。调试中断中的 run 时很有用。"""
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from app.engine.compiler import compile_graph
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from app.engine.context import RunContext
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from app.engine.schema import GraphSpec
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async with SessionLocal() as session:
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run = await session.get(Run, run_id)
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if not run:
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raise HTTPException(404, "运行记录不存在")
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spec = GraphSpec.model_validate(run.graph)
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app = compile_graph(spec, RunContext(run_id=run_id, thread_id=run_id, spec=spec)).compile(
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checkpointer=run_manager.checkpointer
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)
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snapshot = await app.aget_state({"configurable": {"thread_id": run_id}})
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values = dict(snapshot.values or {})
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values.pop("messages", None) # 消息对象不好直接序列化，前端也用不到
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return {
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"values": _jsonable(values),
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"next": list(snapshot.next or ()),
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"interrupts": [
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{"id": getattr(i, "id", None), "value": _jsonable(getattr(i, "value", None))}
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for i in (snapshot.interrupts or ())
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],
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}
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@router.get("/{run_id}/history")
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async def get_history(run_id: str, limit: int = 50) -> list[dict[str, Any]]:
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"""checkpoint 历史 —— 可以看到每一步之后的状态快照，用来做时间旅行式调试。"""
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from app.engine.compiler import compile_graph
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from app.engine.context import RunContext
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from app.engine.schema import GraphSpec
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async with SessionLocal() as session:
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run = await session.get(Run, run_id)
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if not run:
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raise HTTPException(404, "运行记录不存在")
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spec = GraphSpec.model_validate(run.graph)
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app = compile_graph(spec, RunContext(run_id=run_id, thread_id=run_id, spec=spec)).compile(
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checkpointer=run_manager.checkpointer
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)
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out: list[dict[str, Any]] = []
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async for snapshot in app.aget_state_history({"configurable": {"thread_id": run_id}}):
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values = dict(snapshot.values or {})
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values.pop("messages", None)
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out.append(
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{
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"checkpoint_id": snapshot.config.get("configurable", {}).get("checkpoint_id"),
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"next": list(snapshot.next or ()),
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"created_at": snapshot.created_at,
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"trail": _jsonable(values.get("trail") or [])[-1:],
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"nodes_done": list((values.get("nodes") or {}).keys()),
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}
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)
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if len(out) >= limit:
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break
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return out
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@router.delete("/{run_id}", status_code=204)
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async def delete_run(run_id: str, session: AsyncSession = Depends(get_session)) -> None:
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run = await session.get(Run, run_id)
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if not run:
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raise HTTPException(404, "运行记录不存在")
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await session.delete(run)
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await session.commit()
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# --------------------------------------------------------------------------
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# 实时事件流
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# --------------------------------------------------------------------------
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@router.websocket("/{run_id}/stream")
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async def stream_run(websocket: WebSocket, run_id: str) -> None:
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"""把一次运行的事件推给前端。
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先补历史再接实时，所以中途打开页面、或者刷新之后，时间线都是完整的。
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"""
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await websocket.accept()
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after = int(websocket.query_params.get("after", 0) or 0)
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# 先占订阅位，再读历史。反过来的话，两步之间图正好跑出来的事件既不在
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# 历史里、也不在实时流里——永远丢了。实测就是这样：一次跑图的开头
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# 两三条 node.started/node.finished 消失，界面上表现为某个节点永远
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# 在转圈、它的子步骤跑到了顶层。
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subscription = bus.attach(run_id)
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try:
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last_seq = after
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async with SessionLocal() as session:
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rows = await session.execute(
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select(RunEvent)
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.where(RunEvent.run_id == run_id, RunEvent.seq > after)
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.order_by(RunEvent.seq)
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)
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for event in rows.scalars():
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last_seq = max(last_seq, event.seq or 0)
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await websocket.send_json(
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{
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"seq": event.seq,
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"type": event.type,
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"node_id": event.node_id,
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"ts": event.ts,
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"data": event.data,
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"replay": True,
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}
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)
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run = await session.get(Run, run_id)
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# 已经结束的 run 没有后续事件，补完历史就关掉
|
||
if run and run.status in ("succeeded", "failed", "cancelled"):
|
||
await websocket.send_json({"type": "stream.end", "status": run.status})
|
||
await websocket.close()
|
||
return
|
||
|
||
# 占位期间攒下的那几条历史里也有，按 seq 滤掉，否则前端同一步收两遍
|
||
pump = asyncio.create_task(_pump(websocket, subscription.stream(after=last_seq)))
|
||
try:
|
||
# 客户端断开时读操作会抛异常，用它来结束这条连接
|
||
while True:
|
||
await websocket.receive_text()
|
||
except WebSocketDisconnect:
|
||
pass
|
||
finally:
|
||
pump.cancel()
|
||
with contextlib.suppress(asyncio.CancelledError):
|
||
await pump
|
||
except WebSocketDisconnect:
|
||
return
|
||
except Exception: # noqa: BLE001
|
||
with contextlib.suppress(Exception):
|
||
await websocket.close()
|
||
finally:
|
||
subscription.close()
|
||
|
||
|
||
async def _pump(websocket: WebSocket, stream: Any) -> None:
|
||
try:
|
||
async for event in stream:
|
||
await websocket.send_json(event.to_wire())
|
||
except (WebSocketDisconnect, RuntimeError):
|
||
return
|
||
|
||
|
||
# --------------------------------------------------------------------------
|
||
# 审批
|
||
# --------------------------------------------------------------------------
|
||
|
||
approvals_router = APIRouter(prefix="/api/approvals", tags=["approvals"])
|
||
|
||
|
||
class ApprovalOut(BaseModel):
|
||
id: str
|
||
run_id: str
|
||
node_id: str
|
||
mode: str
|
||
title: str
|
||
payload: dict[str, Any]
|
||
status: str
|
||
response: dict[str, Any]
|
||
created_at: Any = None
|
||
|
||
model_config = {"from_attributes": True}
|
||
|
||
|
||
@approvals_router.get("", response_model=list[ApprovalOut])
|
||
async def list_approvals(
|
||
status: str = "pending",
|
||
run_id: str | None = None,
|
||
session: AsyncSession = Depends(get_session),
|
||
) -> list[Approval]:
|
||
stmt = select(Approval).order_by(Approval.created_at.desc()).limit(100)
|
||
if status != "all":
|
||
stmt = stmt.where(Approval.status == status)
|
||
if run_id:
|
||
stmt = stmt.where(Approval.run_id == run_id)
|
||
return list((await session.execute(stmt)).scalars())
|
||
|
||
|
||
class DecideIn(BaseModel):
|
||
approved: bool = True
|
||
note: str = ""
|
||
value: Any = None
|
||
args: dict[str, Any] | None = None
|
||
|
||
|
||
@approvals_router.post("/{approval_id}/decide", response_model=RunOut)
|
||
async def decide(
|
||
approval_id: str,
|
||
payload: DecideIn,
|
||
session: AsyncSession = Depends(get_session),
|
||
x_actor: str | None = Header(default=None),
|
||
) -> Run:
|
||
approval = await session.get(Approval, approval_id)
|
||
if not approval:
|
||
raise HTTPException(404, "审批请求不存在")
|
||
if approval.status != "pending":
|
||
raise HTTPException(409, "该请求已经处理过了")
|
||
|
||
# 责任归属先落库再恢复执行——恢复失败也要留下"谁试图批的"
|
||
approval.resolved_by = (x_actor or "").strip() or None
|
||
await session.commit()
|
||
|
||
response: dict[str, Any] = {"approved": payload.approved, "note": payload.note}
|
||
if payload.value is not None:
|
||
response["value"] = payload.value
|
||
if payload.args is not None:
|
||
response["args"] = payload.args
|
||
|
||
try:
|
||
return await run_manager.resume(
|
||
approval.run_id, response,
|
||
approval_id=approval.id,
|
||
actor=approval.resolved_by,
|
||
)
|
||
except ValueError as e:
|
||
raise HTTPException(409, str(e)) from e
|
||
|
||
|
||
def _jsonable(value: Any) -> Any:
|
||
if isinstance(value, dict):
|
||
return {str(k): _jsonable(v) for k, v in value.items()}
|
||
if isinstance(value, (list, tuple)):
|
||
return [_jsonable(v) for v in value]
|
||
if isinstance(value, (str, int, float, bool)) or value is None:
|
||
return value
|
||
return str(value)
|