import { describe, test, expect, beforeEach, afterEach } from "bun:test";
import { mkdir, rm } from "fs/promises";
import { existsSync } from "fs";
import { join } from "path";
import { tmpdir } from "os";
import { HybridDirectoryBrowser } from "./DirectoriesStep.tsx";

// NOTE: Integration tests for HybridDirectoryBrowser are documented below
// but not implemented because Ink's useInput hook requires a TTY with raw mode,
// which is not available in the test environment.
//
// These would need to be tested with:
// - A custom testing wrapper that provides a mock stdin
// - Integration testing in a real terminal environment
// - Or by extracting the logic into testable pure functions (already done in unit tests)
//
// Documented test scenarios:
// - initialization: should start with tilde in input buffer, show folders in starting directory
// - backspace behavior: should allow backspacing the initial tilde
// - path input: should accept absolute paths, expand tilde, reject non-existent paths
// - folder filtering: show all folders with slash, filter by name without slash
// - escape behavior: go back to parent, cancel at root, clear input
// - scrolling: scroll with many folders, show indicators, reset on navigate
// - navigation: select with arrows, navigate with Enter/Space, clamp selection
// - Ctrl+U: clear input and reset selection

describe("HybridDirectoryBrowser", () => {
  let testDir: string;

  beforeEach(async () => {
    // Create a temporary directory structure for testing
    testDir = join(tmpdir(), `gitforest-test-${Date.now()}`);
    await mkdir(testDir, { recursive: true });

    // Create test directory structure
    await mkdir(join(testDir, "projects"));
    await mkdir(join(testDir, "code"));
    await mkdir(join(testDir, "documents"));
  });

  afterEach(async () => {
    // Clean up test directory
    if (existsSync(testDir)) {
      await rm(testDir, { recursive: true, force: true });
    }
  });

  // Basic smoke test to ensure the component can be imported
  test("should export HybridDirectoryBrowser component", () => {
    expect(HybridDirectoryBrowser).toBeDefined();
  });
});