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import { Hono } from "hono";
import { cors } from "hono/cors";
import { AgentManager } from "./agent-manager.js";

export const agentManager = new AgentManager();

export const app = new Hono();

app.use(
	"*",
	cors({
		origin: "http://localhost:5173",
		credentials: true,
		allowHeaders: ["Content-Type", "Authorization"],
		allowMethods: ["GET", "POST", "OPTIONS"],
	}),
);

app.get("/health", (c) => {
	return c.json({ ok: true });
});

app.get("/status", (c) => {
	return c.json({
		status: agentManager.getStatus(),
		messageCount: agentManager.getMessageCount(),
	});
});

app.post("/chat", async (c) => {
	const body = await c.req.json<{ message?: unknown }>();
	const message = body.message;

	if (typeof message !== "string" || message.trim() === "") {
		return c.json({ error: "message must be a non-empty string" }, 400);
	}

	if (agentManager.getStatus() === "running") {
		return c.json({ error: "agent is already running" }, 409);
	}

	// Non-blocking — let the agent run in the background
	agentManager.processMessage(message).catch(console.error);

	return c.json({ status: "ok" });
});