# frozen_string_literal: true

# License: AGPL-3.0-or-later WITH Web-Template-Output-Additional-Permission-3.0-or-later
require 'rails_helper'

describe UpdateDonation do
  before do
    Timecop.freeze(2020, 2, 3)
  end

  after do
    Timecop.return
  end
  let(:np) { force_create(:nonprofit) }
  let(:supporter) { force_create(:supporter, nonprofit: np) }
  let(:donation) do
    force_create(:donation, nonprofit: np,
                            dedication: initial_dedication,
                            comment: initial_comment,
                            designation: initial_designation,
                            amount: initial_amount,
                            date: initial_date,
                            supporter: supporter)
  end

  let(:payment) do
    force_create(:payment, nonprofit: np, donation: donation,
                           towards: initial_designation,
                           date: initial_date,
                           gross_amount: initial_amount,
                           fee_total: initial_fee,
                           net_amount: initial_amount - initial_fee,
                           supporter: supporter)
  end
  let(:offsite_payment) do
    force_create(:offsite_payment, payment: payment, nonprofit: np, donation: donation,
                                   check_number: initial_check_number,
                                   gross_amount: initial_amount,
                                   date: initial_date,
                                   supporter: supporter)
  end

  let(:payment2) do
    force_create(:payment, nonprofit: np, donation: donation,
                           towards: initial_designation,
                           date: payment2_date,
                           gross_amount: initial_amount,
                           fee_total: initial_fee,
                           net_amount: initial_amount - initial_fee)
  end
  let(:campaign) { force_create(:campaign, nonprofit: np) }
  let(:event) { force_create(:event, nonprofit: np) }
  let(:other_campaign) { force_create(:campaign) }
  let(:other_event) { force_create(:event) }

  let(:initial_date) { Date.new(2020, 4, 5).to_time }
  let(:initial_dedication) { 'initial dedication' }
  let(:initial_comment) { 'comment' }
  let(:initial_amount) { 4000 }
  let(:initial_designation) { 'designation' }
  let(:initial_fee) { 555 }
  let(:initial_check_number) { 'htoajmioeth' }

  let(:new_date_input) { '2020-05-05' }
  let(:new_date) { Date.new(2020, 5, 5) }
  let(:new_dedication) { 'new dedication' }
  let(:new_comment) { 'new comment' }
  let(:new_amount) { 5646 }
  let(:new_designation) { 'new designation' }
  let(:new_fee) { 54 }
  let(:new_check_number) { 'new check number' }

  let(:initial_time) { Time.now }

  let(:payment2_date) { initial_date + 10.days }

  before(:each) do
    initial_time
    payment
  end
  describe '.update_payment' do
    describe 'param validation' do
      it 'basic validation' do
        expect { UpdateDonation.update_payment(nil, nil) }.to raise_error { |error|
          expect(error).to be_a ParamValidation::ValidationError
          expect_validation_errors(error.data, [{ key: :id, name: :required },
                                                { key: :id, name: :is_reference },
                                                { key: :data, name: :required },
                                                { key: :data, name: :is_hash }])
        }
      end

      it 'validates whether payment is valid' do
        expect { UpdateDonation.update_payment(5555, {}) }.to raise_error { |error|
          expect(error).to be_a ParamValidation::ValidationError
          expect_validation_errors(error.data, [{ key: :id }])
          expect(error.message).to eq '5555 is does not correspond to a valid donation'
        }
      end

      describe 'data validation' do
        let(:initial_invalid_arguments) do
          {
            designation: 1,
            dedication: 1,
            comment: 1,
            campaign_id: nil,
            event_id: nil
          }
        end

        let(:expanded_invalid_arguments) do
          initial_invalid_arguments.merge(
            fee_total: 'fun',
            gross_amount: 'fun',
            check_number: Time.now,
            date: 'INVALID DATE'
          )
        end

        let(:initial_validation_errors) do
          [
            { key: :designation, name: :is_a },
            { key: :dedication, name: :is_a },
            { key: :comment, name: :is_a },
            { key: :campaign_id, name: :is_reference },
            { key: :campaign_id, name: :required },
            { key: :event_id, name: :is_reference },
            { key: :event_id, name: :required }
          ]
        end
        it 'for offsite donations' do
          offsite_payment
          expect { UpdateDonation.update_payment(donation.id, expanded_invalid_arguments) }.to(raise_error do |error|
            expect(error).to be_a ParamValidation::ValidationError
            expect_validation_errors(error.data, initial_validation_errors.concat([

                                                                                    { key: :fee_total, name: :is_integer },
                                                                                    { key: :gross_amount, name: :is_integer },
                                                                                    { key: :gross_amount, name: :min },
                                                                                    { key: :check_number, name: :is_a },
                                                                                    { key: :date, name: :can_be_date }
                                                                                  ]))
          end)
        end

        it 'for online donation' do
          expect { UpdateDonation.update_payment(donation.id, expanded_invalid_arguments) }.to(raise_error do |error|
            expect(error).to be_a ParamValidation::ValidationError
            expect_validation_errors(error.data, initial_validation_errors)
          end)
        end
      end

      it 'validate campaign_id' do
        expect { UpdateDonation.update_payment(donation.id, campaign_id: 444, event_id: 444) }.to(raise_error do |error|
          expect(error).to be_a ParamValidation::ValidationError
          expect_validation_errors(error.data, [{ key: :campaign_id }])
        end)
      end

      it 'validate event_id' do
        expect { UpdateDonation.update_payment(donation.id, event_id: 4444, campaign_id: campaign.id) }.to(raise_error do |error|
          expect(error).to be_a ParamValidation::ValidationError
          expect_validation_errors(error.data, [{ key: :event_id }])
        end)
      end

      it 'validates campaign belongs to payment org' do
        campaign_belongs { UpdateDonation.update_payment(donation.id, campaign_id: other_campaign.id, event_id: event.id) }
      end

      it 'validates event belongs to payment org' do
        event_belongs { UpdateDonation.update_payment(donation.id, event_id: other_event.id, campaign_id: campaign.id) }
      end
    end

    describe 'most of the values arent changed if not provided' do
      it 'online donation' do
        payment2
        result = verify_nothing_changed

        expect(result).to eq donation.attributes.merge(payment: payment2.attributes)
      end

      it 'offsite donation' do
        offsite_payment
        result = verify_nothing_changed

        p2_attributes = payment2.attributes
        payment2.reload
        expect(p2_attributes).to eq payment2.attributes

        o_attributes = offsite_payment.attributes
        offsite_payment.reload
        expect(o_attributes).to eq offsite_payment.attributes
        expect(result).to eq donation.attributes.merge(payment: payment.attributes, offsite_payment: offsite_payment.attributes)
      end

      def verify_nothing_changed
        result = UpdateDonation.update_payment(donation.id, campaign_id: '', event_id: '')

        p_attributes = payment.attributes
        payment.reload
        expect(p_attributes).to eq payment.attributes

        d_attributes = donation.attributes
        donation.reload
        expect(d_attributes).to eq donation.attributes

        result
      end
    end

    describe 'test everything changed' do
      let(:new_data) do
        { designation: new_designation,
          dedication: new_dedication,
          comment: new_comment,
          campaign_id: campaign.id,
          event_id: event.id,

          gross_amount: new_amount,
          fee_total: new_fee,
          check_number: new_check_number,
          date: new_date_input }
      end
      it 'online donation' do
        payment2
        Timecop.freeze(1.day) do
          result = UpdateDonation.update_payment(donation.id, new_data)

          expected_donation = donation.attributes.merge(designation: new_designation,
                                                        dedication: new_dedication,
                                                        comment: new_comment,
                                                        campaign_id: campaign.id,
                                                        event_id: event.id,
                                                        updated_at: Time.now).with_indifferent_access

          donation.reload
          expect(donation.attributes).to eq expected_donation

          expected_p1 = payment.attributes.merge(towards: new_designation, updated_at: Time.now).with_indifferent_access
          payment.reload
          expect(payment.attributes).to eq expected_p1

          expected_p2 = payment2.attributes.merge(towards: new_designation, updated_at: Time.now).with_indifferent_access

          payment2.reload
          expect(payment2.attributes).to eq expected_p2

          expected_offsite = offsite_payment.attributes
          offsite_payment.reload
          expect(offsite_payment.attributes).to eq expected_offsite

          expect(result).to eq create_expected_result(donation, payment2)
        end
      end

      it 'offline donation' do
        offsite_payment
        Timecop.freeze(1.day) do
          result = UpdateDonation.update_payment(donation.id, new_data)

          expected_donation = donation.attributes.merge(
            date: new_date,
            amount: new_amount,

            designation: new_designation,
            dedication: new_dedication,
            comment: new_comment,

            campaign_id: campaign.id,
            event_id: event.id,
            updated_at: Time.now
          ).with_indifferent_access

          donation.reload
          expect(donation.attributes).to eq expected_donation

          expected_p1 = payment.attributes.merge(towards: new_designation, updated_at: Time.now, date: new_date, gross_amount: new_amount, fee_total: new_fee, net_amount: new_amount - new_fee).with_indifferent_access
          payment.reload
          expect(payment.attributes).to eq expected_p1

          expect(Payment.count).to eq 1

          expected_offsite_payment = offsite_payment.attributes.merge(check_number: new_check_number, date: new_date.in_time_zone, gross_amount: new_amount, updated_at: Time.now).with_indifferent_access

          offsite_payment.reload
          expect(offsite_payment.attributes).to eq expected_offsite_payment

          expect(result).to eq create_expected_result(donation, payment, offsite_payment)
        end
      end

      describe 'test blank but existent data will rewrite' do
        let(:blank_data) do
          { designation: '',
            dedication: '',
            comment: '',
            campaign_id: '',
            event_id: '',

            gross_amount: new_amount,
            fee_total: new_fee,
            check_number: '',
            date: new_date_input }
        end

        it 'online donation' do
          payment2
          Timecop.freeze(1.day) do
            UpdateDonation.update_payment(donation.id, new_data)
            result = UpdateDonation.update_payment(donation.id, blank_data)

            expected_donation = donation.attributes.merge(designation: '',
                                                          dedication: '',
                                                          comment: '',
                                                          campaign_id: nil,
                                                          event_id: nil,
                                                          updated_at: Time.now).with_indifferent_access
            donation.reload

            expect(donation.attributes).to eq expected_donation

            expected_p1 = payment.attributes.merge(towards: '', updated_at: Time.now).with_indifferent_access
            payment.reload
            expect(payment.attributes).to eq expected_p1

            expected_p2 = payment2.attributes.merge(towards: '', updated_at: Time.now).with_indifferent_access

            payment2.reload
            expect(payment2.attributes).to eq expected_p2

            expected_offsite = offsite_payment.attributes
            offsite_payment.reload
            expect(offsite_payment.attributes).to eq expected_offsite

            expect(result).to eq create_expected_result(donation, payment2)
          end
        end

        it 'offline donation' do
          offsite_payment
          Timecop.freeze(1.day) do
            UpdateDonation.update_payment(donation.id, new_data)
            result = UpdateDonation.update_payment(donation.id, blank_data)

            expected_donation = donation.attributes.merge(
              date: new_date.in_time_zone,
              amount: new_amount,

              designation: '',
              dedication: '',
              comment: '',

              campaign_id: nil,
              event_id: nil,
              updated_at: Time.now
            ).with_indifferent_access

            donation.reload
            expect(donation.attributes).to eq expected_donation

            expected_p1 = payment.attributes.merge(towards: '', updated_at: Time.now, date: new_date.in_time_zone, gross_amount: new_amount, fee_total: new_fee, net_amount: new_amount - new_fee).with_indifferent_access
            payment.reload
            expect(payment.attributes).to eq expected_p1

            expect(Payment.count).to eq 1

            expected_offsite_payment = offsite_payment.attributes.merge(check_number: '', date: new_date.in_time_zone, gross_amount: new_amount, updated_at: Time.now).with_indifferent_access

            offsite_payment.reload
            expect(offsite_payment.attributes).to eq expected_offsite_payment

            expect(result).to eq create_expected_result(donation, payment, offsite_payment)
          end
        end
      end
    end
  end

  def event_belongs
    expect { yield }.to(raise_error do |error|
      expect(error).to be_a ParamValidation::ValidationError
      expect_validation_errors(error.data, [{ key: :event_id }])
      expect(error.message).to include 'event does not belong to this nonprofit'
    end)
  end

  def campaign_belongs
    expect { yield }.to(raise_error do |error|
      expect(error).to be_a ParamValidation::ValidationError
      expect_validation_errors(error.data, [{ key: :campaign_id }])
      expect(error.message).to include 'campaign does not belong to this nonprofit'
    end)
  end

  def create_expected_result(donation, payment, offsite_payment = nil)
    ret = donation.attributes
    ret[:payment] = payment.attributes
    ret[:offsite_payment] = offsite_payment.attributes if offsite_payment

    ret
  end
end