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oh-my-opencode/src/hooks/atlas/recent-model-resolver.ts
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import type { PluginInput } from "@opencode-ai/plugin"
import { findNearestMessageWithFields } from "../../features/hook-message-injector"
import { getMessageDir } from "../../shared/session-utils"
import type { ModelInfo } from "./types"
export async function resolveRecentModelForSession(
ctx: PluginInput,
sessionID: string
): Promise<ModelInfo | undefined> {
try {
const messagesResp = await ctx.client.session.messages({ path: { id: sessionID } })
const messages = (messagesResp.data ?? []) as Array<{
info?: { model?: ModelInfo; modelID?: string; providerID?: string }
}>
for (let i = messages.length - 1; i >= 0; i--) {
const info = messages[i].info
const model = info?.model
if (model?.providerID && model?.modelID) {
return { providerID: model.providerID, modelID: model.modelID }
}
if (info?.providerID && info?.modelID) {
return { providerID: info.providerID, modelID: info.modelID }
}
}
} catch {
// ignore - fallback to message storage
}
const messageDir = getMessageDir(sessionID)
const currentMessage = messageDir ? findNearestMessageWithFields(messageDir) : null
const model = currentMessage?.model
if (!model?.providerID || !model?.modelID) {
return undefined
}
return { providerID: model.providerID, modelID: model.modelID }
}