import { describe, expect, it } from "vitest";
import {
  hasNodeErrorCode,
  isNodeError,
  isNotFoundPathError,
  isPathInside,
  isSymlinkOpenError,
  normalizeWindowsPathForComparison,
} from "./path-guards.js";

describe("normalizeWindowsPathForComparison", () => {
  it("normalizes extended-length and UNC windows paths", () => {
    expect(normalizeWindowsPathForComparison("\\\\?\\C:\\Users\\Peter/Repo")).toBe(
      "c:\\users\\peter\\repo",
    );
    expect(normalizeWindowsPathForComparison("\\\\?\\UNC\\Server\\Share\\Folder")).toBe(
      "\\\\server\\share\\folder",
    );
  });
});

describe("node path error helpers", () => {
  it("recognizes node-style error objects and exact codes", () => {
    const enoent = { code: "ENOENT" };

    expect(isNodeError(enoent)).toBe(true);
    expect(isNodeError({ message: "nope" })).toBe(false);
    expect(hasNodeErrorCode(enoent, "ENOENT")).toBe(true);
    expect(hasNodeErrorCode(enoent, "EACCES")).toBe(false);
  });

  it("classifies not-found and symlink-open error codes", () => {
    expect(isNotFoundPathError({ code: "ENOENT" })).toBe(true);
    expect(isNotFoundPathError({ code: "ENOTDIR" })).toBe(true);
    expect(isNotFoundPathError({ code: "EACCES" })).toBe(false);

    expect(isSymlinkOpenError({ code: "ELOOP" })).toBe(true);
    expect(isSymlinkOpenError({ code: "EINVAL" })).toBe(true);
    expect(isSymlinkOpenError({ code: "ENOTSUP" })).toBe(true);
    expect(isSymlinkOpenError({ code: "ENOENT" })).toBe(false);
  });
});

describe("isPathInside", () => {
  it("accepts identical and nested paths but rejects escapes", () => {
    expect(isPathInside("/workspace/root", "/workspace/root")).toBe(true);
    expect(isPathInside("/workspace/root", "/workspace/root/nested/file.txt")).toBe(true);
    expect(isPathInside("/workspace/root", "/workspace/root/../escape.txt")).toBe(false);
  });
});