const assert = require('assert');
const fs = require('fs');
const os = require('os');
const path = require('path');
const { getDefaultConfigPath } = require('../runtime-paths');

describe('runtime-paths', () => {
  function createTempDir() {
    return fs.mkdtempSync(path.join(os.tmpdir(), 'jhm-runtime-paths-'));
  }

  it('prefers cwd config.json in source mode', () => {
    const cwd = createTempDir();
    const appDir = createTempDir();
    const cwdConfigPath = path.join(cwd, 'config.json');
    const appConfigPath = path.join(appDir, 'config.json');

    fs.writeFileSync(cwdConfigPath, '{}');
    fs.writeFileSync(appConfigPath, '{}');

    const resolved = getDefaultConfigPath({
      packaged: false,
      cwd,
      appDir,
    });

    assert.strictEqual(resolved, cwdConfigPath);

    fs.rmSync(cwd, { recursive: true, force: true });
    fs.rmSync(appDir, { recursive: true, force: true });
  });

  it('prefers runtime/config.json next to executable in packaged mode', () => {
    const cwd = createTempDir();
    const execRoot = createTempDir();
    const runtimeDir = path.join(execRoot, 'runtime');
    const execPath = path.join(execRoot, 'jhm-service.exe');
    const runtimeConfigPath = path.join(runtimeDir, 'config.json');

    fs.mkdirSync(runtimeDir, { recursive: true });
    fs.writeFileSync(runtimeConfigPath, '{}');

    const resolved = getDefaultConfigPath({
      packaged: true,
      cwd,
      execPath,
    });

    assert.strictEqual(resolved, runtimeConfigPath);

    fs.rmSync(cwd, { recursive: true, force: true });
    fs.rmSync(execRoot, { recursive: true, force: true });
  });

  it('falls back to cwd config.json when packaged runtime config is missing', () => {
    const cwd = createTempDir();
    const execRoot = createTempDir();
    const execPath = path.join(execRoot, 'jhm-service');
    const cwdConfigPath = path.join(cwd, 'config.json');

    fs.writeFileSync(cwdConfigPath, '{}');

    const resolved = getDefaultConfigPath({
      packaged: true,
      cwd,
      execPath,
    });

    assert.strictEqual(resolved, cwdConfigPath);

    fs.rmSync(cwd, { recursive: true, force: true });
    fs.rmSync(execRoot, { recursive: true, force: true });
  });
});