import assert from 'assert'
import omit from 'lodash/omit'
import { Application, HookContext } from '@feathersjs/feathers'
import { resolve } from '@feathersjs/schema'

import { LocalStrategy, passwordHash } from '../src'
import { createApplication, ServiceTypes } from './fixture'

describe('@feathersjs/authentication-local/strategy', () => {
  const password = 'localsecret'
  const email = 'localtester@feathersjs.com'

  let app: Application<ServiceTypes>
  let user: any

  beforeEach(async () => {
    app = createApplication()
    user = await app.service('users').create({ email, password })
  })

  it('throw error when configuration is not set', () => {
    const auth = app.service('authentication')

    try {
      auth.register('something', new LocalStrategy())
      assert.fail('Should never get here')
    } catch (error: any) {
      assert.strictEqual(
        error.message,
        "'something' authentication strategy requires a 'usernameField' setting"
      )
    }
  })

  it('fails when entity not found', async () => {
    const authService = app.service('authentication')

    try {
      await authService.create({
        strategy: 'local',
        email: 'not in database',
        password
      })
      assert.fail('Should never get here')
    } catch (error: any) {
      assert.strictEqual(error.name, 'NotAuthenticated')
      assert.strictEqual(error.message, 'Invalid login')
    }
  })

  it('getEntity', async () => {
    const [strategy] = app.service('authentication').getStrategies('local') as [LocalStrategy]
    let entity = await strategy.getEntity(user, {})

    assert.deepStrictEqual(entity, user)

    entity = await strategy.getEntity(user, {
      provider: 'testing'
    })

    assert.deepStrictEqual(entity, {
      ...omit(user, 'password'),
      fromGet: true
    })

    try {
      await strategy.getEntity({}, {})
      assert.fail('Should never get here')
    } catch (error: any) {
      assert.strictEqual(error.message, 'Could not get local entity')
    }
  })

  it('strategy fails when strategy is different', async () => {
    const [local] = app.service('authentication').getStrategies('local')

    await assert.rejects(
      () =>
        local.authenticate(
          {
            strategy: 'not-me',
            password: 'dummy',
            email
          },
          {}
        ),
      {
        name: 'NotAuthenticated',
        message: 'Invalid login'
      }
    )
  })

  it('fails when password is wrong', async () => {
    const authService = app.service('authentication')
    try {
      await authService.create({
        strategy: 'local',
        email,
        password: 'dummy'
      })
      assert.fail('Should never get here')
    } catch (error: any) {
      assert.strictEqual(error.name, 'NotAuthenticated')
      assert.strictEqual(error.message, 'Invalid login')
    }
  })

  it('fails when password is not provided', async () => {
    const authService = app.service('authentication')
    try {
      await authService.create({
        strategy: 'local',
        email
      })
      assert.fail('Should never get here')
    } catch (error: any) {
      assert.strictEqual(error.name, 'NotAuthenticated')
      assert.strictEqual(error.message, 'Invalid login')
    }
  })

  it('fails when password field is not available', async () => {
    const userEmail = 'someuser@localtest.com'
    const authService = app.service('authentication')

    try {
      await app.service('users').create({
        email: userEmail
      })
      await authService.create({
        strategy: 'local',
        password: 'dummy',
        email: userEmail
      })
      assert.fail('Should never get here')
    } catch (error: any) {
      assert.strictEqual(error.name, 'NotAuthenticated')
      assert.strictEqual(error.message, 'Invalid login')
    }
  })

  it('authenticates an existing user', async () => {
    const authService = app.service('authentication')
    const authResult = await authService.create({
      strategy: 'local',
      email,
      password
    })
    const { accessToken } = authResult

    assert.ok(accessToken)
    assert.strictEqual(authResult.user.email, email)

    const decoded = await authService.verifyAccessToken(accessToken)

    assert.strictEqual(decoded.sub, `${user.id}`)
  })

  it('returns safe result when params.provider is set, works without pagination', async () => {
    const authService = app.service('authentication')
    const authResult = await authService.create(
      {
        strategy: 'local',
        email,
        password
      },
      {
        provider: 'rest',
        paginate: false
      }
    )
    const { accessToken } = authResult

    assert.ok(accessToken)
    assert.strictEqual(authResult.user.email, email)
    assert.strictEqual(authResult.user.password, undefined)
    assert.ok(authResult.user.fromGet)

    const decoded = await authService.verifyAccessToken(accessToken)

    assert.strictEqual(decoded.sub, `${user.id}`)
  })

  it('passwordHash property resolver', async () => {
    const userResolver = resolve<{ password: string }, HookContext>({
      properties: {
        password: passwordHash({
          strategy: 'local'
        })
      }
    })

    const resolvedData = await userResolver.resolve({ password: 'supersecret' }, { app } as HookContext)

    assert.notStrictEqual(resolvedData.password, 'supersecret')
  })
  it('should allow for nested values in the usernameField', async () => {
    const appWithNestedFieldOverride = createApplication(undefined, {
      local: {
        usernameField: 'auth.email',
        passwordField: 'auth.password'
      }
    })
    const nestedUser = await appWithNestedFieldOverride.service('users').create({ auth: { email, password } })
    const authService = appWithNestedFieldOverride.service('authentication')
    const authResult = await authService.create({
      strategy: 'local',
      auth: {
        email,
        password
      }
    })
    const { accessToken } = authResult

    assert.ok(accessToken)
    assert.strictEqual(authResult.user.auth.email, email)

    const decoded = await authService.verifyAccessToken(accessToken)

    assert.strictEqual(decoded.sub, `${nestedUser.id}`)
    //
  })
})