/**
 * @copyright Copyright (c) Open-Xchange GmbH, Germany <info@open-xchange.com>
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with OX App Suite. If not, see <https://www.gnu.org/licenses/agpl-3.0.txt>.
 *
 * Any use of the work other than as authorized under this license or copyright law is prohibited.
 */

import { generateSimpleViteManifest, injectApp, mockConfig, mockFetch, mockRedis } from './util.js'
import { expect } from 'chai'
import * as td from 'testdouble'
import RedisMock from 'ioredis-mock'
import promClient from 'prom-client'

describe('version mismatches', function () {
  let app
  let pubClient
  let runUpdate

  beforeEach(async function () {
    await mockConfig({ baseUrls: ['http://ui-server/'] })
    const { createClient } = await mockRedis()
    mockFetch({
      'http://ui-server': {
        '/manifest.json': generateSimpleViteManifest({
          'foo.js': { },
          'bar.js': { }
        }),
        '/foo.js': td.when(td.func()(td.matchers.anything(), td.matchers.anything())).thenReturn(
          new Response('foo1', { headers: { version: '1' } }),
          new Response('foo2', { headers: { version: '2' } })
        ),
        '/bar.js': td.when(td.func()(td.matchers.anything(), td.matchers.anything())).thenReturn(
          new Response('bar', { headers: { version: '2' } }),
          new Response('bar', { headers: { version: '2' } }),
          new Response('bar', { headers: { version: '3' } })
        ),
        '/whatever.js': () => new Response('whatever', { headers: { version: '3' } }),
        '/meta.json': td.when(td.func()(td.matchers.anything(), td.matchers.anything())).thenReturn(
          new Response(JSON.stringify({ }), { headers: { 'Content-Type': 'application/json', version: '1' } }),
          new Response(JSON.stringify({ }), { headers: { 'Content-Type': 'application/json', version: '2' } })
        )
      }
    })
    pubClient = createClient('pubClient')
    for (const prop of Object.getOwnPropertyNames(promClient.register._metrics)) {
      delete promClient.register._metrics[prop]
    }
    const { updateVersionProcessor } = await import('../src/version.js')
    runUpdate = updateVersionProcessor
    runUpdate(pubClient)
    app = await injectApp()
  })

  afterEach(async function () {
    await new RedisMock().flushdb()
    td.reset()
  })

  it('detects version mismatches when files are fetched', async function () {
    // get foo.js with initial version errors, due to the version mismatch
    // no partially complete state should be active (version 1)
    let response = await app.inject({ url: '/foo.js' })
    expect(response.statusCode).to.equal(404)
    await runUpdate(pubClient)

    // update the version (version 2)
    response = await app.inject({ url: '/foo.js' })
    expect(response.statusCode).to.equal(200)
    expect(response.body).to.equal('foo2')
    expect(response.headers.version).to.equal('85102502')

    // get bar.js. This will cause the server to detect the version mismatch
    response = await app.inject({ url: '/bar.js' })
    expect(response.statusCode).to.equal(200)
    expect(response.body).to.equal('bar')

    await runUpdate(pubClient) // version 3 not successful but still version 2 in cache
    await runUpdate(pubClient)

    // get foo.js again. Since the versions should coincide now, the client should receive the new file
    response = await app.inject({ url: '/foo.js' })
    expect(response.statusCode).to.equal(200)
    expect(response.body).to.equal('foo2')
    expect(response.headers.version).to.equal('85102502')
  })

  it('detects version mismatches in files not referenced in manifest.json when files are fetched', async function () {
    // get foo.js with initial version 1
    let response = await app.inject({ url: '/foo.js' })
    expect(response.statusCode).to.equal(404)

    // update the version to 2
    await runUpdate(pubClient)
    // get whatever.js. This will cause the server to detect the version mismatch
    response = await app.inject({ url: '/whatever.js' })
    expect(response.statusCode).to.equal(404)

    await runUpdate(pubClient) // version 3 not successful but still version 2 in cache
    await runUpdate(pubClient)

    // bar should still be version 2
    response = await app.inject({ url: '/bar.js' })
    expect(response.statusCode).to.equal(200)
    expect(response.body).to.equal('bar')
    expect(response.headers.version).to.equal('85102502')
  })
})