import Glob from 'glob'
import consola from 'consola'
import { isIndexFileAndFolder } from '@nuxt/utils'

import Builder from '../src/builder'
import { createNuxt } from './__utils__'

jest.mock('glob')
jest.mock('pify', () => fn => fn)
jest.mock('hash-sum', () => src => `hash(${src})`)
jest.mock('@nuxt/utils')
jest.mock('../src/ignore')

describe('builder: builder plugins', () => {
  beforeEach(() => {
    jest.clearAllMocks()
  })

  test('should normalize plugins', () => {
    const nuxt = createNuxt()
    nuxt.options.plugins = [
      '/var/nuxt/plugins/test.js',
      { src: '/var/nuxt/plugins/test.server', mode: 'server' },
      { src: '/var/nuxt/plugins/test.client', ssr: false }
    ]
    const builder = new Builder(nuxt, {})

    const plugins = builder.normalizePlugins()

    expect(plugins).toEqual([
      {
        mode: 'all',
        name: 'nuxt_plugin_test_hash(/var/nuxt/plugins/test.js)',
        src: 'resolveAlias(/var/nuxt/plugins/test.js)'
      },
      {
        mode: 'server',
        name: 'nuxt_plugin_test_hash(/var/nuxt/plugins/test.server)',
        src: 'resolveAlias(/var/nuxt/plugins/test.server)'
      },
      {
        mode: 'client',
        name: 'nuxt_plugin_test_hash(/var/nuxt/plugins/test.client)',
        src: 'resolveAlias(/var/nuxt/plugins/test.client)'
      }
    ])
  })

  test('should warning and fallback invalid mode when normalize plugins', () => {
    const nuxt = createNuxt()
    nuxt.options.plugins = [
      { src: '/var/nuxt/plugins/test', mode: 'abc' }
    ]
    const builder = new Builder(nuxt, {})

    const plugins = builder.normalizePlugins()

    expect(plugins).toEqual([
      {
        mode: 'all',
        name: 'nuxt_plugin_test_hash(/var/nuxt/plugins/test)',
        src: 'resolveAlias(/var/nuxt/plugins/test)'
      }
    ])
    expect(consola.warn).toBeCalledTimes(1)
    expect(consola.warn).toBeCalledWith("Invalid plugin mode (server/client/all): 'abc'. Falling back to 'all'")
  })

  test('should resolve plugins', async () => {
    const nuxt = createNuxt()
    const builder = new Builder(nuxt, {})
    builder.plugins = [
      { src: '/var/nuxt/plugins/test.js', mode: 'all' },
      { src: '/var/nuxt/plugins/test.client', mode: 'client' },
      { src: '/var/nuxt/plugins/test.server', mode: 'server' }
    ]
    builder.relativeToBuild = jest.fn(src => `relative(${src})`)
    for (let step = 0; step < builder.plugins.length; step++) {
      Glob.mockImplementationOnce(src => [`${src.replace(/\{.*\}/, '')}.js`])
    }

    await builder.resolvePlugins()

    expect(Glob).toBeCalledTimes(3)
    expect(Glob).nthCalledWith(1, '/var/nuxt/plugins/test.js{?(.+([^.])),/index.+([^.])}')
    expect(Glob).nthCalledWith(2, '/var/nuxt/plugins/test.client{?(.+([^.])),/index.+([^.])}')
    expect(Glob).nthCalledWith(3, '/var/nuxt/plugins/test.server{?(.+([^.])),/index.+([^.])}')
    expect(builder.plugins).toEqual([
      { mode: 'all', src: 'relative(/var/nuxt/plugins/test.js)' },
      { mode: 'client', src: 'relative(/var/nuxt/plugins/test.client)' },
      { mode: 'server', src: 'relative(/var/nuxt/plugins/test.server)' }
    ])
  })

  test('should throw error if plugin no existed', () => {
    const nuxt = createNuxt()
    const builder = new Builder(nuxt, {})
    builder.plugins = [
      { src: '/var/nuxt/plugins/test.js', mode: 'all' }
    ]
    Glob.mockImplementationOnce(() => [])

    expect(builder.resolvePlugins()).rejects.toThrow('Plugin not found: /var/nuxt/plugins/test.js')
  })

  test('should warn if there are multiple files and not index', async () => {
    const nuxt = createNuxt()
    const builder = new Builder(nuxt, {})
    builder.plugins = [
      { src: '/var/nuxt/plugins/test', mode: 'all' }
    ]
    builder.relativeToBuild = jest.fn(src => `relative(${src})`)

    Glob.mockImplementationOnce(src => [`${src}.js`, `${src}.ts`])
    isIndexFileAndFolder.mockReturnValueOnce(false)

    await builder.resolvePlugins()

    expect(builder.plugins).toEqual([
      { mode: 'all', src: 'relative(/var/nuxt/plugins/test)' }
    ])
  })

  test('should detect plugin mode for client/server plugins', async () => {
    const nuxt = createNuxt()
    const builder = new Builder(nuxt, {})
    builder.plugins = [
      { src: '/var/nuxt/plugins/test.js', mode: 'all' },
      { src: '/var/nuxt/plugins/test.client', mode: 'all' },
      { src: '/var/nuxt/plugins/test.server', mode: 'all' }
    ]
    builder.relativeToBuild = jest.fn(src => `relative(${src})`)
    for (let step = 0; step < builder.plugins.length; step++) {
      Glob.mockImplementationOnce(src => [`${src.replace(/\{.*\}/, '')}.js`])
    }

    await builder.resolvePlugins()

    expect(builder.plugins).toEqual([
      { mode: 'all', src: 'relative(/var/nuxt/plugins/test.js)' },
      { mode: 'client', src: 'relative(/var/nuxt/plugins/test.client)' },
      { mode: 'server', src: 'relative(/var/nuxt/plugins/test.server)' }
    ])
  })
})