import { describe, expect, it } from "vitest";
import {
  boxNumberFromTopic,
  idleCommand,
  offCommand,
  pickCommand,
  topics,
} from "../src/lib/mqtt-topics.js";

describe("mqtt topic builders", () => {
  const t = topics("findr");

  it("builds the command and state topics for a box", () => {
    expect(t.boxConfig(2)).toBe("findr/box/2/config");
    expect(t.cmdLight(2)).toBe("findr/box/2/cmd/light");
    expect(t.stateLight(2)).toBe("findr/box/2/state/light");
    expect(t.ctrlOnline("abc")).toBe("findr/controller/abc/state/online");
    expect(t.allBoxState()).toBe("findr/box/+/state/+");
    expect(t.allControllerState()).toBe("findr/controller/+/state/+");
  });

  it("extracts the box number from a topic", () => {
    expect(boxNumberFromTopic("findr/box/7/state/light")).toBe(7);
    expect(boxNumberFromTopic("findr/box/x/state/light")).toBeNull();
    expect(boxNumberFromTopic("other/box/7/state/light")).toBeNull();
  });

  it("respects a custom prefix", () => {
    const p = topics("lab");
    expect(p.cmdLight(3)).toBe("lab/box/3/cmd/light");
    expect(boxNumberFromTopic("lab/box/3/evt/button", "lab")).toBe(3);
  });
});

describe("light command builders", () => {
  it("pick lights exactly the given bins", () => {
    const cmd = pickCommand([{ cell: "D4", ledIndex: 27, mode: "take" }], {
      seconds: 30,
      requestId: "r1",
    });
    expect(cmd).toEqual({
      effect: "pick",
      bins: [{ cell: "D4", ledIndex: 27, mode: "take" }],
      seconds: 30,
      requestId: "r1",
    });
  });

  it("idle and off carry just the effect", () => {
    expect(idleCommand().effect).toBe("idle");
    expect(offCommand().effect).toBe("off");
  });
});