62 lines
2.2 KiB
TypeScript

import type { PluginInput } from "@opencode-ai/plugin"
import { findNearestMessageWithFields, findFirstMessageWithAgent } from "../../features/hook-message-injector"
import {
findFirstMessageWithAgentFromSDK,
findNearestMessageWithFieldsFromSDK,
} from "../../features/hook-message-injector"
import { getSessionAgent } from "../../features/claude-code-session-state"
import { readBoulderState } from "../../features/boulder-state"
import { getMessageDir } from "../../shared/opencode-message-dir"
import { isSqliteBackend } from "../../shared/opencode-storage-detection"
type OpencodeClient = PluginInput["client"]
async function getAgentFromMessageFiles(
sessionID: string,
client?: OpencodeClient
): Promise<string | undefined> {
if (isSqliteBackend() && client) {
const firstAgent = await findFirstMessageWithAgentFromSDK(client, sessionID)
if (firstAgent) return firstAgent
const nearest = await findNearestMessageWithFieldsFromSDK(client, sessionID)
return nearest?.agent
}
const messageDir = getMessageDir(sessionID)
if (!messageDir) return undefined
return findFirstMessageWithAgent(messageDir) ?? findNearestMessageWithFields(messageDir)?.agent
}
/**
* Get the effective agent for the session.
* Priority order:
* 1. In-memory session agent (most recent, set by /start-work)
* 2. Boulder state agent (persisted across restarts, fixes #927)
* 3. Message files (fallback for sessions without boulder state)
*
* This fixes issue #927 where after interruption:
* - In-memory map is cleared (process restart)
* - Message files return "prometheus" (oldest message from /plan)
* - But boulder.json has agent: "atlas" (set by /start-work)
*/
export async function getAgentFromSession(
sessionID: string,
directory: string,
client?: OpencodeClient
): Promise<string | undefined> {
// Check in-memory first (current session)
const memoryAgent = getSessionAgent(sessionID)
if (memoryAgent) return memoryAgent
// Check boulder state (persisted across restarts) - fixes #927
const boulderState = readBoulderState(directory)
if (boulderState?.session_ids?.includes(sessionID) && boulderState.agent) {
return boulderState.agent
}
// Fallback to message files
return await getAgentFromMessageFiles(sessionID, client)
}