/**
 * Unit: resource attributes (the spec's service names + the resource shape).
 */
import { describe, expect, it } from "vitest";
import { buildResource, isServiceName, SERVICE_NAMES } from "../resource.js";

describe("buildResource", () => {
  it("carries the four spec service names", () => {
    expect(SERVICE_NAMES).toEqual({
      web: "factory-web",
      api: "factory-api",
      worker: "factory-worker",
      realtime: "factory-realtime"
    });
    expect(isServiceName("factory-api")).toBe(true);
    expect(isServiceName("api")).toBe(false); // the bare NFR name is NOT valid
  });

  it("sets service.name + service.version + deployment.environment + host", () => {
    const res = buildResource("factory-api", { environment: "production", version: "1.2.3", hostName: "pod-1" });
    const attrs = res.attributes;
    expect(attrs["service.name"]).toBe("factory-api");
    expect(attrs["service.version"]).toBe("1.2.3");
    expect(attrs["deployment.environment"]).toBe("production");
    expect(attrs["host.name"]).toBe("pod-1");
  });

  it("defaults to NODE_ENV + the package version when opts are omitted", () => {
    const res = buildResource("factory-worker", { hostName: "h" });
    const attrs = res.attributes;
    expect(attrs["deployment.environment"]).toBe(process.env.NODE_ENV ?? "development");
    expect(attrs["service.version"]).toBe("0.1.0");
  });
});