import { afterEach, describe, expect, it, vi } from "vitest";

async function loadModuleForPlatform(platform: "web" | "ios" | "android") {
  vi.resetModules();
  vi.doMock("react-native", () => ({ Platform: { OS: platform } }));
  return import("./desktop-updates");
}

describe("desktop-updates helpers", () => {
  afterEach(() => {
    vi.doUnmock("react-native");
    vi.restoreAllMocks();
    vi.resetModules();
  });

  it("normalizes versions for app-daemon comparisons", async () => {
    const { normalizeVersionForComparison } = await loadModuleForPlatform("web");

    expect(normalizeVersionForComparison(" v0.1.15 ")).toBe("0.1.15");
    expect(normalizeVersionForComparison("0.1.15")).toBe("0.1.15");
    expect(normalizeVersionForComparison(null)).toBeNull();
  });

  it("detects version mismatch after normalization", async () => {
    const { isVersionMismatch } = await loadModuleForPlatform("web");

    expect(isVersionMismatch("v0.1.15", "0.1.15")).toBe(false);
    expect(isVersionMismatch("0.1.15", "0.1.16")).toBe(true);
    expect(isVersionMismatch("0.1.15", null)).toBe(false);
  });

  it("formats display versions with v prefix and unavailable fallback", async () => {
    const { formatVersionWithPrefix } = await loadModuleForPlatform("web");

    expect(formatVersionWithPrefix("0.2.0")).toBe("v0.2.0");
    expect(formatVersionWithPrefix("v0.2.0")).toBe("v0.2.0");
    expect(formatVersionWithPrefix(null)).toBe("\u2014");
  });

  it("parses valid local daemon version result", async () => {
    const { parseLocalDaemonVersionResult } = await loadModuleForPlatform("web");

    expect(parseLocalDaemonVersionResult({ version: "0.1.15", error: null })).toEqual({
      version: "0.1.15",
      error: null,
    });
  });

  it("parses local daemon version error result", async () => {
    const { parseLocalDaemonVersionResult } = await loadModuleForPlatform("web");

    expect(
      parseLocalDaemonVersionResult({ version: null, error: "paseo command not found in PATH" }),
    ).toEqual({
      version: null,
      error: "paseo command not found in PATH",
    });
  });

  it("parses unexpected local daemon version result", async () => {
    const { parseLocalDaemonVersionResult } = await loadModuleForPlatform("web");

    expect(parseLocalDaemonVersionResult(null)).toEqual({
      version: null,
      error: "Unexpected response from version check.",
    });

    expect(parseLocalDaemonVersionResult("not an object")).toEqual({
      version: null,
      error: "Unexpected response from version check.",
    });
  });

  it("trims whitespace in parsed version", async () => {
    const { parseLocalDaemonVersionResult } = await loadModuleForPlatform("web");

    expect(parseLocalDaemonVersionResult({ version: " 0.1.15 ", error: null })).toEqual({
      version: "0.1.15",
      error: null,
    });
  });

  it("builds copyable daemon update diagnostics", async () => {
    const { buildDaemonUpdateDiagnostics } = await loadModuleForPlatform("web");
    const diagnostics = buildDaemonUpdateDiagnostics({
      exitCode: 1,
      stdout: "stdout text",
      stderr: "stderr text",
    });

    expect(diagnostics).toContain("Exit code: 1");
    expect(diagnostics).toContain("STDOUT:\nstdout text");
    expect(diagnostics).toContain("STDERR:\nstderr text");
  });
});