import { expect } from 'chai'
import { createTestApp, cleanTestDir, createFile, createDir } from './helpers.js'

describe('Headers', () => {
  let request, testDir

  beforeEach(() => {
    ({ request, testDir } = createTestApp())
  })

  afterEach(() => cleanTestDir(testDir))

  it('sets Link type header for resources', async () => {
    createFile(testDir, 'file.txt', 'data')
    const res = await request.get('/file.txt').expect(200)
    expect(res.headers.link).to.include('ldp#Resource')
  })

  it('sets Link type header for containers', async () => {
    createDir(testDir, 'dir')
    const res = await request.get('/dir/').expect(200)
    expect(res.headers.link).to.include('ldp#BasicContainer')
    expect(res.headers.link).to.include('ldp#Container')
  })

  it('sets Storage type on root', async () => {
    const res = await request.get('/').expect(200)
    expect(res.headers.link).to.include('pim/space#Storage')
  })

  it('sets acl and describedby links', async () => {
    createFile(testDir, 'test.txt', 'data')
    const res = await request.get('/test.txt').expect(200)
    expect(res.headers.link).to.include('rel="acl"')
    expect(res.headers.link).to.include('rel="describedby"')
  })

  it('sets Accept-Patch header', async () => {
    createFile(testDir, 'test.txt', 'data')
    const res = await request.get('/test.txt').expect(200)
    expect(res.headers['accept-patch']).to.include('text/n3')
    expect(res.headers['accept-patch']).to.include('application/sparql-update')
  })

  it('sets Accept-Post header', async () => {
    const res = await request.get('/').expect(200)
    expect(res.headers['accept-post']).to.equal('*/*')
  })

  it('sets Allow header', async () => {
    createFile(testDir, 'test.txt', 'data')
    const res = await request.get('/test.txt').expect(200)
    expect(res.headers.allow).to.include('GET')
    expect(res.headers.allow).to.include('PUT')
    expect(res.headers.allow).to.include('DELETE')
  })

  it('sets X-Powered-By header', async () => {
    const res = await request.get('/').expect(200)
    expect(res.headers['x-powered-by']).to.equal('solid-server/7.0.0')
  })

  it('sets Vary header', async () => {
    const res = await request.get('/').expect(200)
    expect(res.headers.vary).to.include('Accept')
    expect(res.headers.vary).to.include('Authorization')
    expect(res.headers.vary).to.include('Origin')
  })

  it('sets ETag and Last-Modified', async () => {
    createFile(testDir, 'etag.txt', 'data')
    const res = await request.get('/etag.txt').expect(200)
    expect(res.headers.etag).to.exist
    expect(res.headers['last-modified']).to.exist
  })
})