# frozen_string_literal: true

require 'rails_helper'

describe MergeSupporters do
  describe '.update_associations' do
    around(:each) do |e|
      Timecop.freeze(2020, 3, 4) do
        e.run
      end
    end
    # one unique tag for 1
    # one unique tag for 2
    # one common tag on both
    #
    # one unique custom field on 1
    # one unique custom field on 2
    # one common field on both and keep the value of the most common

    let(:np) { force_create(:nonprofit) }
    let(:old_supporter1) { force_create(:supporter, nonprofit: np) }
    let(:old_supporter2) { force_create(:supporter, nonprofit: np) }
    let(:new_supporter) { force_create(:supporter, nonprofit: np) }

    let(:supporter_note) { force_create(:supporter_note, supporter: old_supporter1, content: 'feoatheoiath') }

    let(:tag_master) { force_create(:tag_master, nonprofit: np, name: 'something') }
    let(:tag_master2) { force_create(:tag_master, nonprofit: np, name: 'something2') }
    let(:tag_master3) { force_create(:tag_master, nonprofit: np, name: 'something3') }

    let(:tag_on_1) { force_create(:tag_join, tag_master: tag_master, supporter_id: old_supporter1.id) }
    let(:tag_on_2) { force_create(:tag_join, tag_master: tag_master2, supporter_id: old_supporter2.id) }
    let(:tag_on_both) { [old_supporter1, old_supporter2].each { |i| force_create(:tag_join, tag_master: tag_master3, supporter_id: i.id) } }

    let(:custom_field_master) { force_create(:custom_field_master, nonprofit: np, name: 'cfm1') }
    let(:custom_field_master2) { force_create(:custom_field_master, nonprofit: np, name: 'cfm2') }
    let(:custom_field_master3) { force_create(:custom_field_master, nonprofit: np, name: 'cfm3') }

    let(:cfj_on_1) { force_create(:custom_field_join, supporter: old_supporter1, custom_field_master: custom_field_master, value: 'cfj_on_1') }
    let(:cfj_on_2) { force_create(:custom_field_join, supporter: old_supporter2, custom_field_master: custom_field_master2, value: 'cfj_on_2') }
    let(:cfj_on_3) { force_create(:custom_field_join, supporter: old_supporter1, custom_field_master: custom_field_master3, value: 'old_cfj') }
    let(:cfj_on_4) { force_create(:custom_field_join, supporter: old_supporter2, custom_field_master: custom_field_master3, value: 'new_cfj', created_at: Time.now + 1.day) }

    let(:profile) { force_create(:profile) }

    before(:each) do
      np
      old_supporter1
      old_supporter2
      new_supporter
      supporter_note
    end

    it 'merges everything properly with tags and cfjs on both' do
      tag_on_1
      tag_on_2
      tag_on_both
      cfj_on_1
      cfj_on_2
      cfj_on_3
      cfj_on_4
      MergeSupporters.update_associations([old_supporter1.id, old_supporter2.id], new_supporter.id, np.id, profile.id)
      old_supporter1.reload
      old_supporter2.reload
      expect(old_supporter1.tag_joins.count).to eq 0
      expect(old_supporter2.tag_joins.count).to eq 0
      expect(new_supporter.tag_joins.count).to eq 3
      expect(new_supporter.tag_joins.map(&:tag_master)).to contain_exactly(tag_master, tag_master2, tag_master3)

      expect(old_supporter1.custom_field_joins.count).to eq 0
      expect(old_supporter2.custom_field_joins.count).to eq 0
      expect(new_supporter.custom_field_joins.count).to eq 3
      expect(new_supporter.custom_field_joins.map(&:custom_field_master)).to contain_exactly(custom_field_master, custom_field_master2, custom_field_master3)

      expect(new_supporter.custom_field_joins.find { |i| i.custom_field_master == custom_field_master }.value).to eq cfj_on_1.value
      expect(new_supporter.custom_field_joins.find { |i| i.custom_field_master == custom_field_master2 }.value).to eq cfj_on_2.value
      expect(new_supporter.custom_field_joins.find { |i| i.custom_field_master == custom_field_master3 }.value).to eq cfj_on_4.value

      expect(new_supporter.supporter_notes.first.id).to eq supporter_note.id
    end

    it 'merges with tags and cfjs on first' do
      tag_on_1
      cfj_on_1
      cfj_on_3
      MergeSupporters.update_associations([old_supporter1.id, old_supporter2.id], new_supporter.id, np.id, profile.id)
      old_supporter1.reload
      old_supporter2.reload
      expect(old_supporter1.tag_joins.count).to eq 0
      expect(old_supporter2.tag_joins.count).to eq 0
      expect(new_supporter.tag_joins.count).to eq 1
      expect(new_supporter.tag_joins.map(&:tag_master)).to contain_exactly(tag_master)

      expect(old_supporter1.custom_field_joins.count).to eq 0
      expect(old_supporter2.custom_field_joins.count).to eq 0
      expect(new_supporter.custom_field_joins.count).to eq 2
      expect(new_supporter.custom_field_joins.map(&:custom_field_master)).to contain_exactly(custom_field_master, custom_field_master3)

      expect(new_supporter.custom_field_joins.find { |i| i.custom_field_master == custom_field_master }.value).to eq cfj_on_1.value
      expect(new_supporter.custom_field_joins.find { |i| i.custom_field_master == custom_field_master3 }.value).to eq cfj_on_3.value

      expect(new_supporter.supporter_notes.first.id).to eq supporter_note.id
    end

    it 'merges with tags and cfjs on second' do
      tag_on_2
      cfj_on_2
      cfj_on_4
      MergeSupporters.update_associations([old_supporter1.id, old_supporter2.id], new_supporter.id, np.id, profile.id)
      old_supporter1.reload
      old_supporter2.reload
      expect(old_supporter1.tag_joins.count).to eq 0
      expect(old_supporter2.tag_joins.count).to eq 0
      expect(new_supporter.tag_joins.count).to eq 1
      expect(new_supporter.tag_joins.map(&:tag_master)).to contain_exactly(tag_master2)

      expect(old_supporter1.custom_field_joins.count).to eq 0
      expect(old_supporter2.custom_field_joins.count).to eq 0
      expect(new_supporter.custom_field_joins.count).to eq 2
      expect(new_supporter.custom_field_joins.map(&:custom_field_master)).to contain_exactly(custom_field_master2, custom_field_master3)

      expect(new_supporter.custom_field_joins.find { |i| i.custom_field_master == custom_field_master2 }.value).to eq cfj_on_2.value
      expect(new_supporter.custom_field_joins.find { |i| i.custom_field_master == custom_field_master3 }.value).to eq cfj_on_4.value
      expect(new_supporter.supporter_notes.first.id).to eq supporter_note.id
    end

    it 'merges with tags and cfjs on neighter' do
      MergeSupporters.update_associations([old_supporter1.id, old_supporter2.id], new_supporter.id, np.id, profile.id)
      old_supporter1.reload
      old_supporter2.reload
      expect(old_supporter1.tag_joins.count).to eq 0
      expect(old_supporter2.tag_joins.count).to eq 0
      expect(new_supporter.tag_joins.count).to eq 0

      expect(old_supporter1.custom_field_joins.count).to eq 0
      expect(old_supporter2.custom_field_joins.count).to eq 0
      expect(new_supporter.custom_field_joins.count).to eq 0
      expect(new_supporter.supporter_notes.first.id).to eq supporter_note.id
    end
  end
end