Simon
dffcb53db9
- add `stop` method. agent can be reused after stopped - agent can not be reused after disposed - extension DO NOT exposes `dispose` anymore. only `stop`. - update panel for new `stop` method - fix MultiPageAgent dispose event - better handling abortSignal
97 lines
2.8 KiB
TypeScript
97 lines
2.8 KiB
TypeScript
import { type PageAgentConfig, PageAgentCore } from '@page-agent/core'
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import { RemotePageController } from './RemotePageController'
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import { TabsController } from './TabsController'
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import SYSTEM_PROMPT from './system_prompt.md?raw'
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import { createTabTools } from './tabTools'
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/** Detect user language from browser settings */
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function detectLanguage(): 'en-US' | 'zh-CN' {
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const lang = navigator.language || navigator.languages?.[0] || 'en-US'
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return lang.startsWith('zh') ? 'zh-CN' : 'en-US'
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}
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/**
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* MultiPageAgent
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* - use with extension
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* - can be used from a side panel or a content script
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*/
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export class MultiPageAgent extends PageAgentCore {
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constructor(config: Omit<PageAgentConfig, 'pageController'> & { includeInitialTab?: boolean }) {
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// multi page controller
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const tabsController = new TabsController()
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const pageController = new RemotePageController(tabsController)
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const customTools = createTabTools(tabsController)
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// system prompt - auto-detect language if not specified
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const language = config.language ?? detectLanguage()
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const targetLanguage = language === 'zh-CN' ? '中文' : 'English'
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const systemPrompt = SYSTEM_PROMPT.replace(
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/Default working language: \*\*.*?\*\*/,
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`Default working language: **${targetLanguage}**`
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)
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// include initial tab for controlling
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const includeInitialTab = config.includeInitialTab ?? true
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/**
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* When the agent is in side-panel and user closed the side-panel.
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* There is no chance for isAgentRunning to be set false.
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* (unload event doesn't work well in side panel.)
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* (I'm trying not to use long-lived connection because the lifecycle of a sw is hard to predict.)
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* This heartbeat mechanism acts as a backup.
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*/
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let heartBeatInterval: null | number = null
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super({
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...config,
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pageController: pageController as any,
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customTools: customTools,
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customSystemPrompt: systemPrompt,
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onBeforeTask: async (agent) => {
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await tabsController.init(agent.task, includeInitialTab)
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heartBeatInterval = window.setInterval(() => {
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chrome.storage.local.set({
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agentHeartbeat: Date.now(),
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})
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}, 1_000)
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await chrome.storage.local.set({
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isAgentRunning: true,
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})
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},
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onAfterTask: async () => {
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if (heartBeatInterval) {
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window.clearInterval(heartBeatInterval)
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heartBeatInterval = null
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}
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await chrome.storage.local.set({
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isAgentRunning: false,
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})
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},
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onBeforeStep: async (agent) => {
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// make sure the current tab is loaded before the step starts
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await tabsController.waitUntilTabLoaded(tabsController.currentTabId!)
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},
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onDispose: () => {
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if (heartBeatInterval) {
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window.clearInterval(heartBeatInterval)
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heartBeatInterval = null
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}
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chrome.storage.local.set({
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isAgentRunning: false,
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})
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tabsController.dispose()
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},
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})
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}
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}
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