import { describe, expect, it } from "vitest";
import { SessionManager } from "../../src/core/session-manager.js";

describe("SessionManager.newSession with custom id", () => {
	it("uses the provided id instead of generating one", () => {
		const session = SessionManager.inMemory();
		session.newSession({ id: "my-custom-id" });
		expect(session.getSessionId()).toBe("my-custom-id");
	});

	it("generates a random id when no id is provided", () => {
		const session = SessionManager.inMemory();
		session.newSession();
		const id = session.getSessionId();
		expect(id).toBeDefined();
		expect(id).not.toBe("");
	});

	it("generates a random id when options is provided without id", () => {
		const session = SessionManager.inMemory();
		session.newSession({ parentSession: "parent.jsonl" });
		const id = session.getSessionId();
		expect(id).toBeDefined();
		expect(id).not.toBe("");
	});

	it("includes the custom id in the session header", () => {
		const session = SessionManager.inMemory();
		session.newSession({ id: "header-test-id" });

		const header = session.getHeader();
		expect(header).not.toBeNull();
		expect(header!.id).toBe("header-test-id");
	});
});