import { mount } from '@vue/test-utils'
import Transactions from './Transactions'
import { GdtEntryType } from '@/graphql/enums'

import { toastErrorSpy } from '@test/testSetup'

const localVue = global.localVue

const windowScrollToMock = jest.fn()
window.scrollTo = windowScrollToMock

const apolloMock = jest.fn().mockResolvedValue({
  data: {
    listGDTEntries: {
      count: 0,
      gdtEntries: [],
    },
  },
})

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

  const state = {
    language: 'en',
  }

  const mocks = {
    $store: {
      state,
      commit: jest.fn(),
    },
    $t: jest.fn((t) => t),
    $n: jest.fn((n) => String(n)),
    $d: jest.fn((d) => d),
    $i18n: {
      locale: jest.fn(() => 'en'),
    },
    $apollo: {
      query: apolloMock,
    },
  }

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

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

    it('renders the transaction table', () => {
      expect(wrapper.findComponent({ name: 'GddTransactionList' }).exists()).toBeTruthy()
    })

    it('emits update-transactions after creation', () => {
      expect(wrapper.emitted('update-transactions')).toEqual(
        expect.arrayContaining([expect.arrayContaining([{ currentPage: 1, pageSize: 25 }])]),
      )
    })

    it('emits update-transactions when update-transactions is called', () => {
      wrapper
        .findComponent({ name: 'GddTransactionList' })
        .vm.$emit('update-transactions', { currentPage: 2, pageSize: 25 })
      expect(wrapper.emitted('update-transactions')).toEqual(
        expect.arrayContaining([expect.arrayContaining([{ currentPage: 2, pageSize: 25 }])]),
      )
    })

    it('renders the transaction gradido transform table', () => {
      expect(wrapper.findComponent({ name: 'GdtTransactionList' }).exists()).toBeTruthy()
    })

    describe('tabs', () => {
      it('shows the GDD transactions by default', () => {
        expect(wrapper.findAll('div[role="tabpanel"]').at(0).isVisible()).toBeTruthy()
      })

      it('does not show the GDT transactions by default', () => {
        expect(wrapper.findAll('div[role="tabpanel"]').at(1).isVisible()).toBeFalsy()
      })

      describe('click on GDT tab', () => {
        describe('server returns valid data', () => {
          beforeEach(() => {
            apolloMock.mockResolvedValue({
              data: {
                listGDTEntries: {
                  count: 4,
                  gdtEntries: [
                    {
                      id: 1,
                      amount: 100,
                      gdt: 1700,
                      factor: 17,
                      comment: '',
                      date: '2021-05-02T17:20:11+00:00',
                      gdtEntryType: GdtEntryType.FORM,
                    },
                    {
                      id: 2,
                      amount: 1810,
                      gdt: 362,
                      factor: 0.2,
                      comment: 'Dezember 20',
                      date: '2020-12-31T12:00:00+00:00',
                      gdtEntryType: GdtEntryType.GLOBAL_MODIFICATOR,
                    },
                    {
                      id: 3,
                      amount: 100,
                      gdt: 1700,
                      factor: 17,
                      comment: '',
                      date: '2020-05-07T17:00:00+00:00',
                      gdtEntryType: GdtEntryType.FORM,
                    },
                    {
                      id: 4,
                      amount: 100,
                      gdt: 110,
                      factor: 22,
                      comment: '',
                      date: '2020-04-10T13:28:00+00:00',
                      gdtEntryType: GdtEntryType.ELOPAGE_PUBLISHER,
                    },
                  ],
                },
              },
            })
            wrapper.findAll('li[ role="presentation"]').at(1).find('a').trigger('click')
          })

          it('does not show the GDD transactions', () => {
            expect(wrapper.findAll('div[role="tabpanel"]').at(0).isVisible()).toBeFalsy()
          })

          it('shows the GDT transactions', () => {
            expect(wrapper.findAll('div[role="tabpanel"]').at(1).isVisible()).toBeTruthy()
          })

          it('calls the API', () => {
            expect(apolloMock).toBeCalledWith(
              expect.objectContaining({
                variables: {
                  currentPage: 1,
                  pageSize: 25,
                },
              }),
            )
          })

          it('scrolls to (0, 0) after API call', () => {
            expect(windowScrollToMock).toBeCalledWith(0, 0)
          })

          describe('click on GDD tab', () => {
            beforeEach(() => {
              wrapper.findAll('li[ role="presentation"]').at(0).find('a').trigger('click')
            })

            it('shows the GDD transactions', () => {
              expect(wrapper.findAll('div[role="tabpanel"]').at(0).isVisible()).toBeTruthy()
            })

            it('does not show the GDT', () => {
              expect(wrapper.findAll('div[role="tabpanel"]').at(1).isVisible()).toBeFalsy()
            })
          })
        })

        describe('server returns error', () => {
          beforeEach(() => {
            apolloMock.mockRejectedValue({ message: 'Ouch!' })
            wrapper.findAll('li[ role="presentation"]').at(1).find('a').trigger('click')
          })

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

          it('sets transactionGdtCount to -1', () => {
            expect(wrapper.vm.transactionGdtCount).toBe(-1)
          })
        })
      })
    })

    describe('update currentPage', () => {
      beforeEach(() => {
        jest.clearAllMocks()
        wrapper.setData({
          currentPage: 2,
        })
      })

      it('calls the API', () => {
        expect(apolloMock).toBeCalledWith(
          expect.objectContaining({
            variables: {
              currentPage: 2,
              pageSize: 25,
            },
          }),
        )
      })
    })
  })
})