const cds = require('@sap/cds')

describe('cap/samples - Bookshop APIs', () => {
  const { GET, expect, axios } = cds.test ('@capire/bookshop')
  axios.defaults.auth = { username: 'alice', password: 'admin' }

  it('serves $metadata documents in v4', async () => {
    const { headers, status, data } = await GET(`/browse/$metadata`, { headers: { accept: 'application/xml' } })
    expect(status).to.equal(200)
    expect(headers).to.contain({
      // 'content-type': 'application/xml', //> fails with 'application/xml;charset=utf-8'
      'odata-version': '4.0',
    })
    expect(headers['content-type']).to.match(/application\/xml/)
    expect(data).to.contain('<EntitySet Name="Books" EntityType="CatalogService.Books">')
    expect(data).to.contain('<Annotation Term="Common.Label" String="Currency"/>')
  })

  it('serves ListOfBooks?$expand=genre,currency', async () => {
    const Mystery = { ID: 16, name: 'Mystery', descr: null, parent_ID: 10 }
    const Romance = { ID: 15, name: 'Romance', descr: null, parent_ID: 10 }
    const USD = { code: 'USD', name: 'US Dollar', descr: null, symbol: '$' }
    const { data } = await GET `/browse/ListOfBooks ${{
      params: { $search: 'Po', $select: `title,author`, $expand:`genre,currency` },
    }}`
    expect(data.value).to.containSubset([
      { ID: 251, title: 'The Raven', author: 'Edgar Allen Poe', genre:Mystery, currency:USD  },
      { ID: 252, title: 'Eleonora', author: 'Edgar Allen Poe', genre:Romance, currency:USD  },
    ])
  })

  describe('query options...', () => {

    it('supports $search in multiple fields', async () => {
      const { data } = await GET `/browse/Books ${{
        params: { $search: 'Po', $select: `title,author` },
      }}`
      expect(data.value).to.containSubset([
        { ID: 201, title: 'Wuthering Heights', author: 'Emily Brontë' },
        { ID: 207, title: 'Jane Eyre', author: 'Charlotte Brontë' },
        { ID: 251, title: 'The Raven', author: 'Edgar Allen Poe' },
        { ID: 252, title: 'Eleonora', author: 'Edgar Allen Poe' },
      ])
    })

    it('supports $select', async () => {
      const { data } = await GET(`/browse/Books`, {
        params: { $select: `ID,title` },
      })
      expect(data.value).to.containSubset([
        { ID: 201, title: 'Wuthering Heights' },
        { ID: 207, title: 'Jane Eyre' },
        { ID: 251, title: 'The Raven' },
        { ID: 252, title: 'Eleonora' },
        { ID: 271, title: 'Catweazle' },
      ])
    })

    it('supports $expand', async () => {
      const { data } = await GET(`/admin/Authors`, {
        params: {
          $select: `name`,
          $expand: `books($select=title)`,
        },
      })
      expect(data.value).to.containSubset([
        { name: 'Emily Brontë', books: [{ title: 'Wuthering Heights' }] },
        { name: 'Charlotte Brontë', books: [{ title: 'Jane Eyre' }] },
        { name: 'Edgar Allen Poe', books: [{ title: 'The Raven' }, { title: 'Eleonora' }] },
        { name: 'Richard Carpenter', books: [{ title: 'Catweazle' }] },
      ])
    })

    it('supports $value requests', async () => {
      const { data } = await GET`/admin/Books/201/stock/$value`
      expect(data).to.equal(12)
    })

    it('supports $top/$skip paging', async () => {
      const { data: p1 } = await GET`/browse/Books?$select=title&$top=3`
      expect(p1.value).to.containSubset([
        { ID: 201, title: 'Wuthering Heights' },
        { ID: 207, title: 'Jane Eyre' },
        { ID: 251, title: 'The Raven' },
      ])
      const { data: p2 } = await GET`/browse/Books?$select=title&$skip=3`
      expect(p2.value).to.containSubset([
        { ID: 252, title: 'Eleonora' },
        { ID: 271, title: 'Catweazle' },
      ])
    })
  })

  it('serves user info', async () => {
    const { data: alice } = await GET `/user/me`
    expect(alice).to.containSubset({ id: 'alice', locale:'en' })
    const { data: joe } = await GET (`/user/me`, {auth: { username: 'joe' }})
    expect(joe).to.containSubset({ id: 'joe', locale:'en' })
  })

})