dd12928390
- Add process.exit(0) in runner.ts for immediate termination - Fix Timer type to ReturnType<typeof setInterval> in manager.ts - Add .unref() to BackgroundManager polling interval - Add cleanup() method to BackgroundManager 🤖 Generated with assistance of [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)
457 lines
13 KiB
TypeScript
457 lines
13 KiB
TypeScript
import { existsSync, readdirSync } from "node:fs"
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import { join } from "node:path"
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import type { PluginInput } from "@opencode-ai/plugin"
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import type {
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BackgroundTask,
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LaunchInput,
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} from "./types"
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import { log } from "../../shared/logger"
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import {
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findNearestMessageWithFields,
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MESSAGE_STORAGE,
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} from "../hook-message-injector"
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import { subagentSessions } from "../claude-code-session-state"
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type OpencodeClient = PluginInput["client"]
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interface MessagePartInfo {
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sessionID?: string
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type?: string
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tool?: string
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}
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interface EventProperties {
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sessionID?: string
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info?: { id?: string }
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[key: string]: unknown
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}
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interface Event {
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type: string
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properties?: EventProperties
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}
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interface Todo {
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content: string
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status: string
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priority: string
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id: string
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}
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function getMessageDir(sessionID: string): string | null {
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if (!existsSync(MESSAGE_STORAGE)) return null
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const directPath = join(MESSAGE_STORAGE, sessionID)
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if (existsSync(directPath)) return directPath
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for (const dir of readdirSync(MESSAGE_STORAGE)) {
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const sessionPath = join(MESSAGE_STORAGE, dir, sessionID)
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if (existsSync(sessionPath)) return sessionPath
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}
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return null
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}
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export class BackgroundManager {
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private tasks: Map<string, BackgroundTask>
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private notifications: Map<string, BackgroundTask[]>
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private client: OpencodeClient
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private directory: string
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private pollingInterval?: ReturnType<typeof setInterval>
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constructor(ctx: PluginInput) {
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this.tasks = new Map()
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this.notifications = new Map()
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this.client = ctx.client
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this.directory = ctx.directory
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}
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async launch(input: LaunchInput): Promise<BackgroundTask> {
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if (!input.agent || input.agent.trim() === "") {
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throw new Error("Agent parameter is required")
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}
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const createResult = await this.client.session.create({
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body: {
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parentID: input.parentSessionID,
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title: `Background: ${input.description}`,
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},
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})
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if (createResult.error) {
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throw new Error(`Failed to create background session: ${createResult.error}`)
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}
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const sessionID = createResult.data.id
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subagentSessions.add(sessionID)
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const task: BackgroundTask = {
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id: `bg_${crypto.randomUUID().slice(0, 8)}`,
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sessionID,
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parentSessionID: input.parentSessionID,
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parentMessageID: input.parentMessageID,
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description: input.description,
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prompt: input.prompt,
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agent: input.agent,
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status: "running",
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startedAt: new Date(),
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progress: {
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toolCalls: 0,
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lastUpdate: new Date(),
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},
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parentModel: input.parentModel,
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}
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this.tasks.set(task.id, task)
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this.startPolling()
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log("[background-agent] Launching task:", { taskId: task.id, sessionID, agent: input.agent })
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this.client.session.promptAsync({
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path: { id: sessionID },
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body: {
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agent: input.agent,
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tools: {
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task: false,
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background_task: false,
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},
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parts: [{ type: "text", text: input.prompt }],
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},
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}).catch((error) => {
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log("[background-agent] promptAsync error:", error)
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const existingTask = this.findBySession(sessionID)
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if (existingTask) {
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existingTask.status = "error"
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const errorMessage = error instanceof Error ? error.message : String(error)
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if (errorMessage.includes("agent.name") || errorMessage.includes("undefined")) {
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existingTask.error = `Agent "${input.agent}" not found. Make sure the agent is registered in your opencode.json or provided by a plugin.`
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} else {
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existingTask.error = errorMessage
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}
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existingTask.completedAt = new Date()
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this.markForNotification(existingTask)
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this.notifyParentSession(existingTask)
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}
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})
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return task
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}
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getTask(id: string): BackgroundTask | undefined {
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return this.tasks.get(id)
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}
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getTasksByParentSession(sessionID: string): BackgroundTask[] {
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const result: BackgroundTask[] = []
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for (const task of this.tasks.values()) {
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if (task.parentSessionID === sessionID) {
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result.push(task)
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}
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}
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return result
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}
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getAllDescendantTasks(sessionID: string): BackgroundTask[] {
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const result: BackgroundTask[] = []
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const directChildren = this.getTasksByParentSession(sessionID)
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for (const child of directChildren) {
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result.push(child)
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const descendants = this.getAllDescendantTasks(child.sessionID)
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result.push(...descendants)
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}
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return result
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}
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findBySession(sessionID: string): BackgroundTask | undefined {
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for (const task of this.tasks.values()) {
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if (task.sessionID === sessionID) {
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return task
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}
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}
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return undefined
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}
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private async checkSessionTodos(sessionID: string): Promise<boolean> {
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try {
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const response = await this.client.session.todo({
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path: { id: sessionID },
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})
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const todos = (response.data ?? response) as Todo[]
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if (!todos || todos.length === 0) return false
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const incomplete = todos.filter(
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(t) => t.status !== "completed" && t.status !== "cancelled"
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)
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return incomplete.length > 0
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} catch {
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return false
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}
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}
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handleEvent(event: Event): void {
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const props = event.properties
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if (event.type === "message.part.updated") {
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if (!props || typeof props !== "object" || !("sessionID" in props)) return
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const partInfo = props as unknown as MessagePartInfo
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const sessionID = partInfo?.sessionID
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if (!sessionID) return
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const task = this.findBySession(sessionID)
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if (!task) return
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if (partInfo?.type === "tool" || partInfo?.tool) {
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if (!task.progress) {
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task.progress = {
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toolCalls: 0,
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lastUpdate: new Date(),
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}
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}
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task.progress.toolCalls += 1
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task.progress.lastTool = partInfo.tool
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task.progress.lastUpdate = new Date()
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}
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}
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if (event.type === "session.idle") {
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const sessionID = props?.sessionID as string | undefined
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if (!sessionID) return
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const task = this.findBySession(sessionID)
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if (!task || task.status !== "running") return
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this.checkSessionTodos(sessionID).then((hasIncompleteTodos) => {
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if (hasIncompleteTodos) {
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log("[background-agent] Task has incomplete todos, waiting for todo-continuation:", task.id)
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return
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}
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task.status = "completed"
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task.completedAt = new Date()
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this.markForNotification(task)
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this.notifyParentSession(task)
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log("[background-agent] Task completed via session.idle event:", task.id)
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})
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}
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if (event.type === "session.deleted") {
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const info = props?.info
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if (!info || typeof info.id !== "string") return
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const sessionID = info.id
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const task = this.findBySession(sessionID)
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if (!task) return
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if (task.status === "running") {
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task.status = "cancelled"
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task.completedAt = new Date()
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task.error = "Session deleted"
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}
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this.tasks.delete(task.id)
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this.clearNotificationsForTask(task.id)
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subagentSessions.delete(sessionID)
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}
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}
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markForNotification(task: BackgroundTask): void {
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const queue = this.notifications.get(task.parentSessionID) ?? []
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queue.push(task)
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this.notifications.set(task.parentSessionID, queue)
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}
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getPendingNotifications(sessionID: string): BackgroundTask[] {
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return this.notifications.get(sessionID) ?? []
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}
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clearNotifications(sessionID: string): void {
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this.notifications.delete(sessionID)
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}
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private clearNotificationsForTask(taskId: string): void {
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for (const [sessionID, tasks] of this.notifications.entries()) {
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const filtered = tasks.filter((t) => t.id !== taskId)
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if (filtered.length === 0) {
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this.notifications.delete(sessionID)
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} else {
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this.notifications.set(sessionID, filtered)
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}
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}
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}
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private startPolling(): void {
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if (this.pollingInterval) return
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this.pollingInterval = setInterval(() => {
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this.pollRunningTasks()
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}, 2000)
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this.pollingInterval.unref()
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}
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private stopPolling(): void {
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if (this.pollingInterval) {
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clearInterval(this.pollingInterval)
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this.pollingInterval = undefined
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}
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}
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cleanup(): void {
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this.stopPolling()
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this.tasks.clear()
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this.notifications.clear()
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}
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private notifyParentSession(task: BackgroundTask): void {
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const duration = this.formatDuration(task.startedAt, task.completedAt)
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log("[background-agent] notifyParentSession called for task:", task.id)
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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const tuiClient = this.client as any
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if (tuiClient.tui?.showToast) {
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tuiClient.tui.showToast({
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body: {
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title: "Background Task Completed",
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message: `Task "${task.description}" finished in ${duration}.`,
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variant: "success",
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duration: 5000,
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},
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}).catch(() => {})
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}
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const message = `[BACKGROUND TASK COMPLETED] Task "${task.description}" finished in ${duration}. Use background_output with task_id="${task.id}" to get results.`
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log("[background-agent] Sending notification to parent session:", { parentSessionID: task.parentSessionID })
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setTimeout(async () => {
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try {
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const messageDir = getMessageDir(task.parentSessionID)
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const prevMessage = messageDir ? findNearestMessageWithFields(messageDir) : null
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const modelContext = task.parentModel ?? prevMessage?.model
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const modelField = modelContext?.providerID && modelContext?.modelID
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? { providerID: modelContext.providerID, modelID: modelContext.modelID }
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: undefined
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await this.client.session.prompt({
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path: { id: task.parentSessionID },
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body: {
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agent: prevMessage?.agent,
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model: modelField,
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parts: [{ type: "text", text: message }],
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},
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query: { directory: this.directory },
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})
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this.clearNotificationsForTask(task.id)
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log("[background-agent] Successfully sent prompt to parent session:", { parentSessionID: task.parentSessionID })
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} catch (error) {
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log("[background-agent] prompt failed:", String(error))
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}
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}, 200)
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}
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private formatDuration(start: Date, end?: Date): string {
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const duration = (end ?? new Date()).getTime() - start.getTime()
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const seconds = Math.floor(duration / 1000)
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const minutes = Math.floor(seconds / 60)
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const hours = Math.floor(minutes / 60)
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if (hours > 0) {
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return `${hours}h ${minutes % 60}m ${seconds % 60}s`
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} else if (minutes > 0) {
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return `${minutes}m ${seconds % 60}s`
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}
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return `${seconds}s`
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}
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private hasRunningTasks(): boolean {
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for (const task of this.tasks.values()) {
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if (task.status === "running") return true
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}
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return false
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}
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private async pollRunningTasks(): Promise<void> {
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const statusResult = await this.client.session.status()
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const allStatuses = (statusResult.data ?? {}) as Record<string, { type: string }>
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for (const task of this.tasks.values()) {
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if (task.status !== "running") continue
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try {
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const sessionStatus = allStatuses[task.sessionID]
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if (!sessionStatus) {
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log("[background-agent] Session not found in status:", task.sessionID)
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continue
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}
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if (sessionStatus.type === "idle") {
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const hasIncompleteTodos = await this.checkSessionTodos(task.sessionID)
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if (hasIncompleteTodos) {
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log("[background-agent] Task has incomplete todos via polling, waiting:", task.id)
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continue
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}
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task.status = "completed"
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task.completedAt = new Date()
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this.markForNotification(task)
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this.notifyParentSession(task)
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log("[background-agent] Task completed via polling:", task.id)
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continue
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}
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const messagesResult = await this.client.session.messages({
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path: { id: task.sessionID },
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})
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if (!messagesResult.error && messagesResult.data) {
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const messages = messagesResult.data as Array<{
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info?: { role?: string }
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parts?: Array<{ type?: string; tool?: string; name?: string; text?: string }>
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}>
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const assistantMsgs = messages.filter(
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(m) => m.info?.role === "assistant"
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)
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let toolCalls = 0
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let lastTool: string | undefined
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let lastMessage: string | undefined
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for (const msg of assistantMsgs) {
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const parts = msg.parts ?? []
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for (const part of parts) {
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if (part.type === "tool_use" || part.tool) {
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toolCalls++
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lastTool = part.tool || part.name || "unknown"
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}
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if (part.type === "text" && part.text) {
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lastMessage = part.text
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}
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}
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}
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if (!task.progress) {
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task.progress = { toolCalls: 0, lastUpdate: new Date() }
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}
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task.progress.toolCalls = toolCalls
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task.progress.lastTool = lastTool
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task.progress.lastUpdate = new Date()
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if (lastMessage) {
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task.progress.lastMessage = lastMessage
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task.progress.lastMessageAt = new Date()
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}
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}
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} catch (error) {
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log("[background-agent] Poll error for task:", { taskId: task.id, error })
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}
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}
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if (!this.hasRunningTasks()) {
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this.stopPolling()
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}
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}
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}
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