Files
tolaria/src/lib/aiAgentStreamCallbacks.ts
2026-04-30 21:18:15 +02:00

136 lines
4.2 KiB
TypeScript

import type { Dispatch, MutableRefObject, SetStateAction } from 'react'
import type { AgentStatus, AiAgentMessage } from './aiAgentConversation'
import { detectFileOperation, type AgentFileCallbacks } from './aiAgentFileOperations'
import {
markReasoningDone,
updateMessage,
updateToolAction,
type ToolInvocation,
} from './aiAgentMessageState'
import { getAiAgentDefinition, type AiAgentId } from './aiAgents'
import {
trackAiAgentResponseCompleted,
trackAiAgentResponseFailed,
} from './productAnalytics'
export interface StreamMutationContext {
agent: AiAgentId
messageId: string
vaultPath: string
setMessages: Dispatch<SetStateAction<AiAgentMessage[]>>
setStatus: Dispatch<SetStateAction<AgentStatus>>
abortRef: MutableRefObject<{ aborted: boolean }>
responseAccRef: MutableRefObject<string>
toolInputMapRef: MutableRefObject<Map<string, ToolInvocation>>
fileCallbacksRef: MutableRefObject<AgentFileCallbacks | undefined>
}
function finalResponseText(response: string, agent: AiAgentId): string {
return response.trim()
? response
: `${getAiAgentDefinition(agent).label} finished without returning a reply.`
}
export function createStreamCallbacks(context: StreamMutationContext) {
const {
messageId,
agent,
vaultPath,
setMessages,
setStatus,
abortRef,
responseAccRef,
toolInputMapRef,
fileCallbacksRef,
} = context
let failureTracked = false
let streamFailed = false
return {
onThinking: (chunk: string) => {
if (abortRef.current.aborted) return
updateMessage(setMessages, messageId, (message) => ({
...message,
reasoning: (message.reasoning ?? '') + chunk,
}))
},
onText: (chunk: string) => {
if (abortRef.current.aborted) return
markReasoningDone(setMessages, messageId)
responseAccRef.current += chunk
},
onToolStart: (toolName: string, toolId: string, input?: string) => {
if (abortRef.current.aborted) return
markReasoningDone(setMessages, messageId)
setStatus('tool-executing')
const previous = toolInputMapRef.current.get(toolId)
toolInputMapRef.current.set(toolId, { tool: toolName, input: input ?? previous?.input })
updateMessage(setMessages, messageId, (message) => updateToolAction(message, toolName, toolId, input))
},
onToolDone: (toolId: string, output?: string) => {
if (abortRef.current.aborted) return
const info = toolInputMapRef.current.get(toolId)
if (info) {
detectFileOperation({
toolName: info.tool,
input: info.input,
vaultPath,
callbacks: fileCallbacksRef.current,
})
}
updateMessage(setMessages, messageId, (message) => ({
...message,
actions: message.actions.map((action) => (
action.toolId === toolId ? { ...action, status: 'done' as const, output } : action
)),
}))
},
onError: (error: string) => {
if (abortRef.current.aborted) return
setStatus('error')
streamFailed = true
const partial = responseAccRef.current
failureTracked = true
trackAiAgentResponseFailed(agent, partial, toolInputMapRef.current.size)
updateMessage(setMessages, messageId, (message) => ({
...message,
isStreaming: false,
reasoningDone: true,
response: partial ? `${partial}\n\nError: ${error}` : `Error: ${error}`,
actions: message.actions.map((action) => (
action.status === 'pending' ? { ...action, status: 'error' as const } : action
)),
}))
},
onDone: () => {
if (abortRef.current.aborted) return
if (streamFailed) return
setStatus('done')
const finalResponse = finalResponseText(responseAccRef.current, agent)
trackAiAgentResponseCompleted(agent, responseAccRef.current, toolInputMapRef.current.size, failureTracked)
updateMessage(setMessages, messageId, (message) => ({
...message,
isStreaming: false,
reasoningDone: true,
response: finalResponse,
actions: message.actions.map((action) => (
action.status === 'pending' ? { ...action, status: 'done' as const } : action
)),
}))
fileCallbacksRef.current?.onVaultChanged?.()
},
}
}