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brand new durable object

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This commit is contained in:
akdeb 2026-04-17 14:21:48 +05:30
parent 1b566f7df3
commit 848275fb86
2 changed files with 20 additions and 35 deletions
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47
server-cloudflare/models/openai.ts
View file

@ -12,10 +12,6 @@ interface OpenAIChatMessage {
content: string;
}
interface SessionState {
history: OpenAIChatMessage[];
}
function createAuthMessage() {
return {
type: "auth",
@ -114,18 +110,23 @@ export class ElatoOpenAiVoiceAgent extends DurableObject<Env> {
private hasStartedConversation = false;
private transcriberSession: TranscriberSession | null = null;
private currentWebSocket: WebSocket | null = null;
private history: OpenAIChatMessage[] = [];
constructor(ctx: DurableObjectState, env: Env) {
super(ctx, env);
}
private async loadSessionState(): Promise<SessionState> {
const stored = await this.ctx.storage.get<SessionState>("session_state");
return stored || { history: [] };
}
private async saveSessionState(state: SessionState) {
await this.ctx.storage.put("session_state", state);
private resetSession() {
this.isGenerating = false;
this.hasStartedConversation = false;
this.currentWebSocket = null;
this.history = [];
this.transcriberSession?.close();
this.transcriberSession = null;
if (this.opusPromise) {
void this.opusPromise.then((opus) => opus.close()).catch(() => {});
this.opusPromise = null;
}
}
private getOpusPacketizer(websocket: WebSocket) {
@ -220,14 +221,12 @@ export class ElatoOpenAiVoiceAgent extends DurableObject<Env> {
console.log(`[cloudflare][stt] transcript: ${transcript}`);
/* Add user transcript DB call here */
const session = await this.loadSessionState();
const reply = await generateOpenAIReply(this.env, transcript, session.history);
const reply = await generateOpenAIReply(this.env, transcript, this.history);
console.log(`[cloudflare][llm] generated reply (${reply.length} chars)`);
session.history.push(
this.history.push(
{ role: "user", content: transcript },
{ role: "assistant", content: reply },
);
await this.saveSessionState(session);
/* Add AI transcript DB call here */
await this.streamAssistantReply(websocket, reply);
}
@ -241,11 +240,9 @@ export class ElatoOpenAiVoiceAgent extends DurableObject<Env> {
this.isGenerating = true;
try {
const session = await this.loadSessionState();
const reply = await generateOpenAIReply(this.env, null, session.history);
const reply = await generateOpenAIReply(this.env, null, this.history);
console.log(`[cloudflare][llm] initial reply (${reply.length} chars)`);
session.history.push({ role: "assistant", content: reply });
await this.saveSessionState(session);
this.history.push({ role: "assistant", content: reply });
/* Add AI transcript DB call here */
await this.streamAssistantReply(websocket, reply);
} catch (error) {
@ -260,6 +257,8 @@ export class ElatoOpenAiVoiceAgent extends DurableObject<Env> {
return new Response("Expected websocket", { status: 426 });
}
this.resetSession();
const pair = new WebSocketPair();
const [client, server] = Object.values(pair);
server.accept();
@ -320,15 +319,7 @@ export class ElatoOpenAiVoiceAgent extends DurableObject<Env> {
});
server.addEventListener("close", () => {
this.isGenerating = false;
this.hasStartedConversation = false;
this.currentWebSocket = null;
this.transcriberSession?.close();
this.transcriberSession = null;
if (this.opusPromise) {
void this.opusPromise.then((opus) => opus.close()).catch(() => {});
this.opusPromise = null;
}
this.resetSession();
});
return new Response(null, { status: 101, webSocket: client });

8
server-cloudflare/src/index.ts
View file

@ -2,12 +2,6 @@ import type { Env } from "./types";
export { ElatoOpenAiVoiceAgent } from "../models/openai";
function sessionNameFromRequest(request: Request): string {
const url = new URL(request.url);
const pathParts = url.pathname.split("/").filter(Boolean);
return pathParts[2] || url.searchParams.get("session") || "default";
}
export default {
async fetch(request: Request, env: Env): Promise<Response> {
const url = new URL(request.url);
@ -20,7 +14,7 @@ export default {
/* Add AUTH here */
const stub = env.ElatoOpenAiVoiceAgent.get(
env.ElatoOpenAiVoiceAgent.idFromName(sessionNameFromRequest(request)),
env.ElatoOpenAiVoiceAgent.newUniqueId(),
);
return stub.fetch(request);
}