// Tests for VyOS install option parsing.

import { describe, it, expect } from "vitest";
import { parseVlan } from "../src/commands/install.js";

describe("parseVlan", () => {
  it("parses id and CIDR", () => {
    expect(parseVlan("10:10.0.10.1/24")).toEqual([{ id: 10, address: "10.0.10.1/24" }]);
  });

  it("accumulates across repeated flags", () => {
    const first = parseVlan("10:10.0.10.1/24");
    const both = parseVlan("20:10.0.20.1/24", first);
    expect(both).toHaveLength(2);
    expect(both[1]).toEqual({ id: 20, address: "10.0.20.1/24" });
  });

  it("keeps a description, including one containing colons", () => {
    expect(parseVlan("30:10.0.30.1/24:mgmt:secondary")).toEqual([
      { id: 30, address: "10.0.30.1/24", description: "mgmt:secondary" },
    ]);
  });

  it("rejects an address that is not CIDR", () => {
    // A bare address would produce a VyOS config that fails to commit on first
    // boot, long after the operator has stopped watching.
    expect(() => parseVlan("10:10.0.10.1")).toThrow(/CIDR/);
  });

  it("rejects out-of-range and non-numeric VLAN ids", () => {
    expect(() => parseVlan("0:10.0.10.1/24")).toThrow(/1-4094/);
    expect(() => parseVlan("4095:10.0.10.1/24")).toThrow(/1-4094/);
    expect(() => parseVlan("abc:10.0.10.1/24")).toThrow(/1-4094/);
  });
});