import assert from 'assert'
import proxyquire from 'proxyquire'
import sinon from 'sinon'

import {
  REQUIRED_ERROR,
  INVALID_RECIPIENT_ADDRESS_ERROR,
  KNOWN_RECIPIENT_ADDRESS_ERROR,
} from '../../../send.constants'

const stubs = {
  isValidAddress: sinon.stub().callsFake((to) => Boolean(to.match(/^[0xabcdef123456798]+$/))),
}

const toRowUtils = proxyquire('../add-recipient.js', {
  '../../../../helpers/utils/util': {
    isValidAddress: stubs.isValidAddress,
  },
})
const {
  getToErrorObject,
  getToWarningObject,
} = toRowUtils

describe('add-recipient utils', function () {

  describe('getToErrorObject()', function () {
    it('should return a required error if to is falsy', function () {
      assert.deepEqual(getToErrorObject(null), {
        to: REQUIRED_ERROR,
      })
    })

    it('should return null if to is falsy and hexData is truthy', function () {
      assert.deepEqual(getToErrorObject(null, true), {
        to: null,
      })
    })

    it('should return an invalid recipient error if to is truthy but invalid', function () {
      assert.deepEqual(getToErrorObject('mockInvalidTo'), {
        to: INVALID_RECIPIENT_ADDRESS_ERROR,
      })
    })

    it('should return null if to is truthy and valid', function () {
      assert.deepEqual(getToErrorObject('0xabc123'), {
        to: null,
      })
    })

    it('should return null if to is truthy but part of state tokens', function () {
      assert.deepEqual(getToErrorObject('0xabc123', false, [{ 'address': '0xabc123' }], { 'address': '0xabc123' }), {
        to: null,
      })
    })

    it('should null if to is truthy part of tokens but sendToken falsy', function () {
      assert.deepEqual(getToErrorObject('0xabc123', false, [{ 'address': '0xabc123' }]), {
        to: null,
      })
    })

    it('should return null if to is truthy but part of contract metadata', function () {
      assert.deepEqual(getToErrorObject('0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359', false, [{ 'address': '0xabc123' }], { 'address': '0xabc123' }), {
        to: null,
      })
    })
    it('should null if to is truthy part of contract metadata but sendToken falsy', function () {
      assert.deepEqual(getToErrorObject('0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359', false, [{ 'address': '0xabc123' }], { 'address': '0xabc123' }), {
        to: null,
      })
    })
  })

  describe('getToWarningObject()', function () {
    it('should return a known address recipient if to is truthy but part of state tokens', function () {
      assert.deepEqual(getToWarningObject('0xabc123', [{ 'address': '0xabc123' }], { 'address': '0xabc123' }), {
        to: KNOWN_RECIPIENT_ADDRESS_ERROR,
      })
    })

    it('should null if to is truthy part of tokens but sendToken falsy', function () {
      assert.deepEqual(getToWarningObject('0xabc123', [{ 'address': '0xabc123' }]), {
        to: null,
      })
    })

    it('should return a known address recipient if to is truthy but part of contract metadata', function () {
      assert.deepEqual(getToWarningObject('0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359', [{ 'address': '0xabc123' }], { 'address': '0xabc123' }), {
        to: KNOWN_RECIPIENT_ADDRESS_ERROR,
      })
    })
    it('should null if to is truthy part of contract metadata but sendToken falsy', function () {
      assert.deepEqual(getToWarningObject('0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359', [{ 'address': '0xabc123' }], { 'address': '0xabc123' }), {
        to: KNOWN_RECIPIENT_ADDRESS_ERROR,
      })
    })
  })

})