import { mkdtemp, readFile, rm } from "node:fs/promises";
import os from "node:os";
import path from "node:path";
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";

const electronState = vi.hoisted(() => ({ userData: "" }));
vi.mock("electron", () => ({
  app: {
    getPath: () => electronState.userData
  }
}));

import { loadSettings, updateSettings } from "./settings";

describe("app settings", () => {
  beforeEach(async () => {
    electronState.userData = await mkdtemp(path.join(os.tmpdir(), "rpa-settings-"));
  });

  afterEach(async () => {
    await rm(electronState.userData, { recursive: true, force: true });
  });

  it("returns the default element wait when no settings file exists", () => {
    expect(loadSettings()).toEqual({ browserElementWaitMs: 5000, aiConfig: { baseUrl: "", apiKey: "", model: "", visionModel: "" } });
  });

  it("persists and clamps a user-adjustable element wait", async () => {
    const saved = updateSettings({ browserElementWaitMs: 12500 });
    expect(saved).toEqual({ browserElementWaitMs: 12500, aiConfig: { baseUrl: "", apiKey: "", model: "", visionModel: "" } });
    expect(JSON.parse(await readFile(path.join(electronState.userData, "settings.json"), "utf8"))).toEqual(saved);
    expect(updateSettings({ browserElementWaitMs: -5 })).toEqual({ browserElementWaitMs: 0, aiConfig: { baseUrl: "", apiKey: "", model: "", visionModel: "" } });
    expect(loadSettings()).toEqual({ browserElementWaitMs: 0, aiConfig: { baseUrl: "", apiKey: "", model: "", visionModel: "" } });
  });
});