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oh-my-opencode/src/features/background-agent/compaction-aware-message-resolver.ts
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import { readdirSync, readFileSync } from "node:fs"
import { join } from "node:path"
import type { StoredMessage } from "../hook-message-injector"
export function isCompactionAgent(agent: string | undefined): boolean {
return agent?.trim().toLowerCase() === "compaction"
}
function hasFullAgentAndModel(message: StoredMessage): boolean {
return !!message.agent &&
!isCompactionAgent(message.agent) &&
!!message.model?.providerID &&
!!message.model?.modelID
}
function hasPartialAgentOrModel(message: StoredMessage): boolean {
const hasAgent = !!message.agent && !isCompactionAgent(message.agent)
const hasModel = !!message.model?.providerID && !!message.model?.modelID
return hasAgent || hasModel
}
export function findNearestMessageExcludingCompaction(messageDir: string): StoredMessage | null {
try {
const files = readdirSync(messageDir)
.filter((name) => name.endsWith(".json"))
.sort()
.reverse()
for (const file of files) {
try {
const content = readFileSync(join(messageDir, file), "utf-8")
const parsed = JSON.parse(content) as StoredMessage
if (hasFullAgentAndModel(parsed)) {
return parsed
}
} catch {
continue
}
}
for (const file of files) {
try {
const content = readFileSync(join(messageDir, file), "utf-8")
const parsed = JSON.parse(content) as StoredMessage
if (hasPartialAgentOrModel(parsed)) {
return parsed
}
} catch {
continue
}
}
} catch {
return null
}
return null
}