import assert from "node:assert/strict";
import { mkdir, mkdtemp } from "node:fs/promises";
import { tmpdir } from "node:os";
import { join } from "node:path";
import test from "node:test";
import { createAgentRegistry } from "../src/bridge/agent-registry.js";

test("recovers an exited agent with its last Pi session reference", async () => {
	const root = await mkdtemp(join(tmpdir(), "pi-status-bridge-recovery-"));
	const home = join(root, "home");
	const sessionRoot = join(root, "sessions");
	await mkdir(home);
	const sessionFile = join(sessionRoot, "pi-session.jsonl");
	const calls = [];
	const registry = createAgentRegistry({
		homeWorktree: home,
		sessionRoot,
		recoveryDelayForAttempt: () => 0,
		sleep: async () => {},
		startAdapter: (options) => {
			const adapter = {
				send: async () => ({
					type: "response",
					success: true,
					data: { sessionFile },
				}),
				respondToExtension: () => {},
				stop: async () => {},
			};
			calls.push({ options, adapter });
			return adapter;
		},
	});

	const agent = await registry.start();
	calls[0].options.onError({ code: "child_exited", message: "crashed" });
	await registry.waitForRecovery(agent.id);

	assert.equal(calls.length, 2);
	assert.equal(calls[1].options.sessionPath, sessionFile);
	assert.deepEqual(
		registry.eventsAfter(agent.id, 0).map((event) => event.type),
		["agent_state", "recovery", "recovery", "agent_state"],
	);
	await registry.stop();
});