Files
page-agent/packages/extension/src/agent/useAgent.ts

102 lines
2.7 KiB
TypeScript

/**
* React hook for using AgentController
*/
import type { AgentActivity, AgentStatus, HistoricalEvent } from '@page-agent/core'
import { useCallback, useEffect, useRef, useState } from 'react'
import { type AgentController, type LLMConfig, getAgentController } from './AgentController'
export interface UseAgentResult {
status: AgentStatus
history: HistoricalEvent[]
activity: AgentActivity | null
currentTask: string
config: LLMConfig
execute: (task: string) => Promise<void>
stop: () => void
configure: (config: LLMConfig) => Promise<void>
}
export function useAgent(): UseAgentResult {
const controllerRef = useRef<AgentController | null>(null)
const [status, setStatus] = useState<AgentStatus>('idle')
const [history, setHistory] = useState<HistoricalEvent[]>([])
const [activity, setActivity] = useState<AgentActivity | null>(null)
const [currentTask, setCurrentTask] = useState('')
const [config, setConfig] = useState<LLMConfig>({
apiKey: '',
baseURL: '',
model: '',
})
useEffect(() => {
const controller = getAgentController()
controllerRef.current = controller
controller.init().then(() => {
setConfig(controller.getConfig())
})
const handleStatusChange = (e: Event) => {
const newStatus = (e as CustomEvent).detail as AgentStatus
setStatus(newStatus)
if (newStatus === 'idle' || newStatus === 'completed' || newStatus === 'error') {
setActivity(null)
}
}
const handleHistoryChange = (e: Event) => {
const newHistory = (e as CustomEvent).detail as HistoricalEvent[]
setHistory([...newHistory])
}
const handleActivity = (e: Event) => {
const newActivity = (e as CustomEvent).detail as AgentActivity
setActivity(newActivity)
}
controller.addEventListener('statuschange', handleStatusChange)
controller.addEventListener('historychange', handleHistoryChange)
controller.addEventListener('activity', handleActivity)
return () => {
controller.removeEventListener('statuschange', handleStatusChange)
controller.removeEventListener('historychange', handleHistoryChange)
controller.removeEventListener('activity', handleActivity)
controller.dispose()
}
}, [])
const execute = useCallback(async (task: string) => {
const controller = controllerRef.current
if (!controller) return
setCurrentTask(task)
setHistory([])
await controller.execute(task)
}, [])
const stop = useCallback(() => {
controllerRef.current?.stop()
}, [])
const configure = useCallback(async (newConfig: LLMConfig) => {
const controller = controllerRef.current
if (!controller) return
await controller.configure(newConfig)
setConfig(newConfig)
}, [])
return {
status,
history,
activity,
currentTask,
config,
execute,
stop,
configure,
}
}