import {promises as fs} from 'fs'
import * as path from 'path'
import * as cacheUtils from '../src/internal/cacheUtils'

beforeEach(() => {
  jest.resetModules() 
});

test('getArchiveFileSizeInBytes returns file size', () => {
  const filePath = path.join(__dirname, '__fixtures__', 'helloWorld.txt')

  const size = cacheUtils.getArchiveFileSizeInBytes(filePath)

  expect(size).toBe(11)
})

test('unlinkFile unlinks file', async () => {
  const testDirectory = await fs.mkdtemp('unlinkFileTest')
  const testFile = path.join(testDirectory, 'test.txt')
  await fs.writeFile(testFile, 'hello world')

  await expect(fs.stat(testFile)).resolves.not.toThrow()

  await cacheUtils.unlinkFile(testFile)

  // This should throw as testFile should not exist
  await expect(fs.stat(testFile)).rejects.toThrow()

  await fs.rmdir(testDirectory)
})

test('assertDefined throws if undefined', () => {
  expect(() => cacheUtils.assertDefined('test', undefined)).toThrowError()
})

test('assertDefined returns value', () => {
  expect(cacheUtils.assertDefined('test', 5)).toBe(5)
})

test('resolvePaths works on github workspace directory', async () => {
  const workspace = process.env['GITHUB_WORKSPACE'] ?? '.'
  const paths = await cacheUtils.resolvePaths([workspace])
  expect(paths.length).toBeGreaterThan(0)
})

test('isGhes returns false for github.com', async () => {
  process.env.GITHUB_SERVER_URL = 'https://github.com'
  expect(cacheUtils.isGhes()).toBe(false)
})

test('isGhes returns true for enterprise URL', async () => {
  process.env.GITHUB_SERVER_URL = 'https://my-enterprise.github.com'
  expect(cacheUtils.isGhes()).toBe(true)
})