import { mount } from '@vue/test-utils'
import Send, { SEND_TYPES } from './Send'
import { toastErrorSpy, toastSuccessSpy } from '@test/testSetup'
import { TRANSACTION_STEPS } from '@/components/GddSend.vue'
import { sendCoins, createTransactionLink } from '@/graphql/mutations.js'

const apolloMutationMock = jest.fn()
apolloMutationMock.mockResolvedValue('success')

const navigatorClipboardMock = jest.fn()

const localVue = global.localVue

describe('Send', () => {
  let wrapper

  const propsData = {
    balance: 123.45,
    GdtBalance: 1234.56,
    transactions: [{ balance: 0.1 }],
    pending: true,
    currentTransactionStep: TRANSACTION_STEPS.transactionConfirmationSend,
  }

  const mocks = {
    $t: jest.fn((t) => t),
    $n: jest.fn((n) => String(n)),
    $store: {
      state: {
        email: 'sender@example.org',
      },
    },
    $apollo: {
      mutate: apolloMutationMock,
    },
  }

  const Wrapper = () => {
    return mount(Send, { localVue, mocks, propsData })
  }

  describe('mount', () => {
    beforeEach(() => {
      wrapper = Wrapper()
    })

    it('has a send field', () => {
      expect(wrapper.find('div.gdd-send').exists()).toBeTruthy()
    })

    /* SEND */
    describe('transaction form send', () => {
      beforeEach(async () => {
        wrapper.findComponent({ name: 'TransactionForm' }).vm.$emit('set-transaction', {
          email: 'user@example.org',
          amount: 23.45,
          memo: 'Make the best of it!',
          selected: SEND_TYPES.send,
        })
      })
      it('steps forward in the dialog', () => {
        expect(wrapper.findComponent({ name: 'TransactionConfirmationSend' }).exists()).toBe(true)
      })
    })

    describe('confirm transaction if selected: SEND_TYPES.send', () => {
      beforeEach(() => {
        wrapper.setData({
          currentTransactionStep: TRANSACTION_STEPS.transactionConfirmationSend,
          transactionData: {
            email: 'user@example.org',
            amount: 23.45,
            memo: 'Make the best of it!',
            selected: SEND_TYPES.send,
          },
        })
      })

      it('resets the transaction process when on-reset is emitted', async () => {
        await wrapper.findComponent({ name: 'TransactionConfirmationSend' }).vm.$emit('on-reset')
        expect(wrapper.findComponent({ name: 'TransactionForm' }).exists()).toBeTruthy()
        expect(wrapper.vm.transactionData).toEqual({
          email: 'user@example.org',
          amount: 23.45,
          memo: 'Make the best of it!',
          selected: SEND_TYPES.send,
        })
      })

      describe('transaction is confirmed and server response is success', () => {
        beforeEach(async () => {
          jest.clearAllMocks()
          await wrapper
            .findComponent({ name: 'TransactionConfirmationSend' })
            .vm.$emit('send-transaction')
        })

        it('calls the API when send-transaction is emitted', async () => {
          expect(apolloMutationMock).toBeCalledWith(
            expect.objectContaining({
              mutation: sendCoins,
              variables: {
                email: 'user@example.org',
                amount: 23.45,
                memo: 'Make the best of it!',
                selected: SEND_TYPES.send,
              },
            }),
          )
        })

        it('emits update-balance', () => {
          expect(wrapper.emitted('update-balance')).toBeTruthy()
          expect(wrapper.emitted('update-balance')).toEqual([[23.45]])
        })

        it('shows the success page', () => {
          expect(wrapper.find('div.card-body').text()).toContain('form.send_transaction_success')
        })
      })

      describe('transaction is confirmed and server response is error', () => {
        beforeEach(async () => {
          jest.clearAllMocks()
          apolloMutationMock.mockRejectedValue({ message: 'recipient not known' })
          await wrapper
            .findComponent({ name: 'TransactionConfirmationSend' })
            .vm.$emit('send-transaction')
        })

        it('shows the error page', () => {
          expect(wrapper.find('.test-send_transaction_error').text()).toContain(
            'form.send_transaction_error',
          )
        })

        it('shows recipient not found', () => {
          expect(wrapper.find('.test-receiver-not-found').text()).toContain(
            'transaction.receiverNotFound',
          )
        })
      })
    })

    /* LINK */

    describe('transaction form link', () => {
      beforeEach(async () => {
        apolloMutationMock.mockResolvedValue({
          data: { createTransactionLink: { code: '0123456789' } },
        })
        await wrapper.findComponent({ name: 'TransactionForm' }).vm.$emit('set-transaction', {
          amount: 56.78,
          memo: 'Make the best of it link!',
          selected: SEND_TYPES.link,
        })
      })
      it('steps forward in the dialog', () => {
        expect(wrapper.findComponent({ name: 'TransactionConfirmationLink' }).exists()).toBe(true)
      })

      describe('transaction is confirmed and server response is success', () => {
        beforeEach(async () => {
          jest.clearAllMocks()
          await wrapper
            .findComponent({ name: 'TransactionConfirmationLink' })
            .vm.$emit('send-transaction')
        })

        it('calls the API when send-transaction is emitted', async () => {
          expect(apolloMutationMock).toBeCalledWith(
            expect.objectContaining({
              mutation: createTransactionLink,
              variables: {
                amount: 56.78,
                memo: 'Make the best of it link!',
              },
            }),
          )
        })

        it.skip('emits update-balance', () => {
          expect(wrapper.emitted('update-balance')).toBeTruthy()
          expect(wrapper.emitted('update-balance')).toEqual([[56.78]])
        })

        it('find components ClipBoard', () => {
          expect(wrapper.findComponent({ name: 'ClipboardCopy' }).exists()).toBe(true)
        })

        it('shows the success message', () => {
          expect(wrapper.find('div.card-body').text()).toContain('gdd_per_link.created')
        })

        it('shows the close button', () => {
          expect(wrapper.find('div.card-body').text()).toContain('form.close')
        })

        describe('Copy link to Clipboard', () => {
          const navigatorClipboard = navigator.clipboard
          beforeAll(() => {
            delete navigator.clipboard
            navigator.clipboard = { writeText: navigatorClipboardMock }
          })
          afterAll(() => {
            navigator.clipboard = navigatorClipboard
          })

          describe('copy with success', () => {
            beforeEach(async () => {
              navigatorClipboardMock.mockResolvedValue()
              await wrapper.findAll('button').at(0).trigger('click')
            })

            it('toasts success message', () => {
              expect(toastSuccessSpy).toBeCalledWith('gdd_per_link.link-copied')
            })
          })

          describe('copy with error', () => {
            beforeEach(async () => {
              navigatorClipboardMock.mockRejectedValue()
              await wrapper.findAll('button').at(0).trigger('click')
            })

            it('toasts error message', () => {
              expect(toastErrorSpy).toBeCalledWith('gdd_per_link.not-copied')
            })
          })
        })

        describe('close button click', () => {
          beforeEach(async () => {
            await wrapper.findAll('button').at(1).trigger('click')
          })

          it('Shows the TransactionForm', () => {
            expect(wrapper.findComponent({ name: 'TransactionForm' }).exists()).toBe(true)
          })
        })
      })

      describe('send apollo if transaction link with error', () => {
        beforeEach(() => {
          apolloMutationMock.mockRejectedValue({ message: 'OUCH!' })
          wrapper.find('button.btn-success').trigger('click')
        })

        it('toasts an error message', () => {
          expect(toastErrorSpy).toBeCalledWith({ message: 'OUCH!' })
        })
      })
    })
  })
})