eve/dist/src/execution/tasks/child/workflow.js

Filesystem-first framework for durable backend AI agents that run anywhere.

import{createHook}from"#compiled/@workflow/core/index.js";import{claimHookOwnership,isHookConflictError}from"#execution/hook-ownership.js";import{isReadyTaskStatus,isTerminalTaskStatus,readTaskInputRequestId}from"#tasks/types.js";import{appendTaskProgressStep,appendTaskViewStep,deliverTaskInputResponsesStep,wakeTaskAgentRequestParentStep,wakeTaskAuthorizationParentStep,wakeTaskMessageParentStep,wakeTaskParentStep,wakeTaskUpdateParentStep,wakeWorkflowTaskInputRequestParentStep}from"#execution/tasks/child/steps.js";import{createWorkflowBodyRef,executeWorkflowBody}from"#execution/tools/workflow/body.js";import{resumeHookStep}from"#execution/tools/workflow/resume-hook-step.js";import{createChannelReader,raceChannelReads}from"#execution/tools/workflow/owner-channels.js";import{openWorkflowToolRunOwnerInbox}from"#execution/tools/workflow/owner.js";import{workflowToolRunOutcomeToTaskCommand,workflowToolRunReportToTaskPayload,workflowToolRunRequestToTaskInputRequest}from"#execution/tools/workflow/owner-inbox.js";import{applyTaskTransition}from"#tasks/transitions.js";async function taskRunWorkflow(e){"use workflow";let t=createHook({token:e.taskInboxToken}),n=openWorkflowToolRunOwnerInbox(),r=[n.reader,createChannelReader(`commands`,t)],i=e.initialView,a=!1,o=!1,s,c=[],l=0,u={messages:[],ownerRequests:[]},d=new Map,f=new AbortController,p,m=e.workflow===void 0,h;try{await claimHookOwnership(t)}catch(e){if(isHookConflictError(e))return;throw e}for(await appendTaskViewStep({activityObserver:e.activityObserver,view:i});h!==void 0&&l>=h.reportCount&&(m=!0,await applyPayload({command:workflowToolRunOutcomeToTaskCommand({from:createWorkflowBodyRef({...e.workflow,execution:`background`}),result:h.outcome}),kind:`task-command`}),h=void 0,i.status===`cancelled`&&a&&!o&&await wakeTaskParentStep({token:e.parentContinuationToken,view:i})),!isFinished();){let e=await raceChannelReads(p===void 0?r:[...r,p]);if(e.channel===`body`){if(p=void 0,e.next.done)continue;h=e.next.value;continue}if(e.next.done)return;if(e.channel===`workflow`){let t=e.next.value;if(t.kind===`report`){await applyPayload(workflowToolRunReportToTaskPayload(t,i.taskId,l++));continue}if(t.kind===`outcome`){await applyPayload({command:workflowToolRunOutcomeToTaskCommand(t),kind:`task-command`});continue}let n=t,r=n.request.kind;if(r===`agent-invoke`||r===`agent-settled`||r===`authorization-request`){await handleOwnerRequest(n);continue}n.requestCoordinates===void 0&&d.set(n.replyTo,{runId:n.from.runId}),await applyPayload(workflowToolRunRequestToTaskInputRequest(n));continue}await applyPayload(e.next.value)}function isFinished(){return isTerminalTaskStatus(i.status)&&a&&m}async function handleUpdate(t){if(i.metadata.kind===`subagent`){if(o)return;a&&!isTerminalTaskStatus(i.status)?await wakeTaskUpdateParentStep({token:e.parentContinuationToken,update:t,view:i}):c.push(t);return}await appendTaskProgressStep({progress:{callId:t.callId,kind:`task-progress`,taskId:i.taskId,update:t.message,updateIndex:t.updateIndex}})}async function handleMessage(t){if(!(o||isTerminalTaskStatus(i.status))){if(!a){u.messages.push(t);return}await wakeTaskMessageParentStep({message:t,taskId:i.taskId,token:e.parentContinuationToken})}}async function applyPayload(t){let r=t.kind===`task-command`&&t.command.kind===`ready`,c=t.kind===`task-command`&&t.command.kind===`reject-dispatch`;if((r||c)&&(a=!0),c&&(o=!0),(r||c)&&(c||isTerminalTaskStatus(i.status)?m=!0:e.workflow!==void 0&&p===void 0&&h===void 0&&!m&&(p=createChannelReader(`body`,awaitBodyResult(executeWorkflowBody({...e.workflow,execution:`background`,owner:n.owner},f.signal)))),await flushPendingTraffic()),t.kind===`task-input-request`&&(s=t),t.kind===`task-message`){await handleMessage(t);return}if(t.kind===`task-update`){await handleUpdate(t);return}let l;if(t.kind===`input-response`)l=i.status===`input_required`?await resolveAnsweredCommand(i,t,d.get(t.childContinuationToken)):void 0;else if(t.kind===`task-input-request`)l={inputRequests:t.requests??[t.request],kind:`require-input`};else if(t.kind===`task-command`)l=t.command;else return;if(l===void 0)return;if(r&&isTerminalTaskStatus(i.status)){await flushUpdates(!0),await wakeTaskParentStep({token:e.parentContinuationToken,view:i});return}let u=i;await transitionTask(l)&&(l.kind===`cancel`&&(f.abort(Error(`Task ${i.taskId} was cancelled.`)),p===void 0&&(m=!0)),isTerminalTaskStatus(i.status)||await flushUpdates(),s!==void 0&&a&&i.status===`input_required`?(await wakeWorkflowTaskInputRequestParentStep({request:s,taskId:i.taskId,token:e.parentContinuationToken}),s=void 0):!o&&a&&(l.kind!==`cancel`||m)&&(!isTerminalTaskStatus(u.status)&&isTerminalTaskStatus(i.status)||!isReadyTaskStatus(u.status)&&isReadyTaskStatus(i.status)&&s===void 0)&&await wakeTaskParentStep({token:e.parentContinuationToken,view:i}),i.status!==`input_required`&&(s=void 0))}async function flushUpdates(t=!1){if(!(!a||isTerminalTaskStatus(i.status)&&!t)){for(let t of c)await wakeTaskUpdateParentStep({token:e.parentContinuationToken,update:t,view:i});c=[]}}async function transitionTask(t){let n=applyTaskTransition(i,t);return n.action===`accepted`&&(i=n.view,await appendTaskViewStep({activityObserver:e.activityObserver,view:i}),!0)}async function handleOwnerRequest(t){if(!a){u.ownerRequests.push(t);return}let{request:n,replyTo:r}=t;if(n.kind===`authorization-request`&&n.event.childSessionId===t.from.runId){await handleStepAuthorization(n,r);return}if(!(o||isTerminalTaskStatus(i.status))){if(n.kind===`authorization-request`){await wakeTaskAuthorizationParentStep({request:n,taskId:i.taskId,token:e.parentContinuationToken});return}await wakeTaskAgentRequestParentStep({request:t,taskId:i.taskId,token:e.parentContinuationToken})}}async function handleStepAuthorization(t,n){let r=t.event.event,a=r.type===`authorization.completed`;if(!o&&(!isTerminalTaskStatus(i.status)||a)){let n=`attemptId`in r.data?r.data.attemptId:void 0;n!==void 0&&r.type===`authorization.required`?await transitionTask({kind:`require-input`,inputRequests:[...i.status===`input_required`?i.inputRequests:[],{kind:`authorization`,requestId:n,name:r.data.name}]}):n!==void 0&&await transitionTask({kind:`answered`,requestIds:[n]}),await wakeTaskAuthorizationParentStep({request:t,taskId:i.taskId,token:e.parentContinuationToken})}await resumeHookStep(n,null,{ifPresent:!0})}async function flushPendingTraffic(){if(!o)for(let t of u.messages)await wakeTaskMessageParentStep({message:t,taskId:i.taskId,token:e.parentContinuationToken});for(let e of u.ownerRequests)await handleOwnerRequest(e);u.messages.length=0,u.ownerRequests.length=0}}async function*awaitBodyResult(e){yield await e}async function resolveAnsweredCommand(e,t,n){if(t.taskId!==e.taskId)return;let r=new Set(e.inputRequests.flatMap(e=>{let t=readTaskInputRequestId(e);return t===void 0?[]:[t]})),i=t.inputResponses.map(e=>e.requestId).filter(e=>r.has(e));if(i.length!==0)return await deliverTaskInputResponsesStep({answer:t,answerHook:n,requestIds:i})===`delivered`?{kind:`answered`,requestIds:i}:void 0}taskRunWorkflow.workflowId=`workflow//eve//taskRunWorkflow`;export{taskRunWorkflow};