import { resolve } from 'path'
import { readFileSync } from 'fs'
import {
  itExecutes,
  ensureFileExists,
  itDeletesFolder
} from '../../scripts/helpers'

describe('build-ecs: simple scene compilation', () => {
  const cwd = resolve(__dirname, './fixtures/ecs7-scene')

  itDeletesFolder('./bin', cwd)
  itDeletesFolder('./node_modules', cwd)

  itExecutes('npm i --quiet --no-progress', cwd)
  itExecutes('npm run --quiet build', cwd)

  it('ensure files exist', () => {
    const binPath = ensureFileExists('bin/game.js', cwd)
    ensureFileExists('bin/game.js.lib', cwd)
    const fileText = readFileSync(binPath, 'utf8')
    const ecs7Included = fileText.includes(
      'packages/@dcl/sdk/dist/ecs7/index.js'
    )
    if (!ecs7Included) {
      throw new Error('ECS 7 not loaded correctly')
    }
  })
})