# frozen_string_literal: true

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

describe InsertCustomFieldJoins do
  describe '.find_or_create' do
    let(:nonprofit) { force_create(:nonprofit) }
    let(:other_nonprofit) { force_create(:nonprofit) }
    let(:supporter) { force_create(:supporter, nonprofit: nonprofit) }
    let(:other_supporter) { force_create(:supporter, nonprofit: other_nonprofit) }

    let(:initial_custom_field_master) { force_create(:custom_field_master, nonprofit: nonprofit, name: 'CFM Name') }

    describe 'param validation' do
      it 'basic validation' do
        expect { InsertCustomFieldJoins.find_or_create(nil, nil, nil) }.to(raise_error do |error|
          expect(error).to be_a ParamValidation::ValidationError
          expect_validation_errors(error.data, [
                                     { key: :np_id, name: :required },
                                     { key: :np_id, name: :is_integer },
                                     { key: :supporter_ids, name: :required },
                                     { key: :supporter_ids, name: :is_array },
                                     { key: :supporter_ids, name: :min_length },
                                     { key: :field_data, name: :required },
                                     { key: :field_data, name: :is_array },
                                     { key: :field_data, name: :min_length }
                                   ])
        end)
      end

      it 'validate nonprofit existence' do
        expect { InsertCustomFieldJoins.find_or_create(5, [555], [[1, 1]]) }.to(raise_error do |error|
          expect(error).to be_a ParamValidation::ValidationError
          expect_validation_errors(error.data, [
                                     { key: :np_id }
                                   ])

          expect(error.message).to eq '5 is not a valid non-profit'
        end)
      end

      it 'validate supporter in nonprofit' do
        expect { InsertCustomFieldJoins.find_or_create(nonprofit.id, [other_supporter.id], [[1, 1]]) }.to(raise_error do |error|
          expect(error).to be_a ParamValidation::ValidationError
          expect_validation_errors(error.data, [
                                     { key: :supporter_ids }
                                   ])

          expect(error.message).to eq "#{other_supporter.id} is not a valid supporter for nonprofit #{nonprofit.id}"
        end)
      end
    end

    it 'run insert' do
      new_cf_name = 'new cf name'
      new_cf_value = 'value'
      old_cf_value = 'old_cf_value'
      expect(InsertCustomFieldJoins).to receive(:in_bulk) do |np_id, supporters_id, field_data|
        expect(np_id).to eq nonprofit.id
        expect(supporters_id).to eq [supporter.id]
        expect(field_data.length).to eq 2
        expect(field_data).to include(custom_field_master_id: initial_custom_field_master.id, value: old_cf_value)
        expect(field_data).to include(custom_field_master_id: CustomFieldMaster.where(name: new_cf_name).first.id, value: new_cf_value)
      end
      result = InsertCustomFieldJoins.find_or_create(nonprofit.id, [supporter.id], [
                                                       [
                                                         initial_custom_field_master.name,
                                                         old_cf_value
                                                       ],
                                                       [
                                                         new_cf_name,
                                                         new_cf_value
                                                       ]
                                                     ])
      expect(CustomFieldMaster.count).to eq 2
    end
  end

  describe '.in_bulk' do
    context 'parameter validation' do
      it 'should validate parameters' do
        response = InsertCustomFieldJoins.in_bulk(nil, nil, nil)
        errors = response[:json][:errors]
        expect(errors.length).to eq(6)
        expect(response[:status]).to eq :unprocessable_entity
        expect_validation_errors(errors, [
                                   { key: :np_id, name: :required },
                                   { key: :np_id, name: :is_integer },
                                   { key: :supporter_ids, name: :required },
                                   { key: :supporter_ids, name: :is_array },
                                   { key: :field_data, name: :is_array },
                                   { key: :field_data, name: :required }
                                 ])
      end
      context 'requiring db' do
        before(:each) do
          @nonprofit = force_create(:nonprofit)
          @bad_nonprofit = force_create(:nonprofit, id: 50)
        end
        it 'nonprofit must be valid' do
          response = InsertCustomFieldJoins.in_bulk(@nonprofit.id + 1, [], [])
          expect(response[:status]).to eq :unprocessable_entity
          expect(response[:json][:error]).to include("Nonprofit #{@nonprofit.id + 1} is not valid")
        end

        it 'supporters if empty should do nothing' do
          response = InsertCustomFieldJoins.in_bulk(@nonprofit.id, [], [])
          expect(response).to eq(successful_json(0, 0))
        end

        it 'supporters if empty should do nothing' do
          response = InsertCustomFieldJoins.in_bulk(@nonprofit.id, [50], [])
          expect(response).to eq(successful_json(0, 0))
        end
      end
    end

    context 'main testing' do
      before(:each) do
        @nonprofit = force_create(:nonprofit)

        @random_supporter = create(:supporter)

        @other_nonprofit = force_create(:nonprofit)
        @delete_cfm = [20, 40, 60]
        @add_cfm = [25, 35]

        @supporters = {
          np_supporter_with_add: {
            cfm_ids: [65, 75, 85]
          },
          np_supporter_with_cfms_to_delete: {
            cfm_ids: [40, 75, 85]
          },

          np_supporter_with_no_changes: {
            cfm_ids: @add_cfm
          },
          np_supporter_with_some_of_both: {

            cfm_ids: [20, 35]
          },
          supporter_from_other_np: {
            cfm_ids: [100, 150, 200],
            other_np: true
          }

        }

        @supporters.each_key do |k|
          i = @supporters[k]
          nonprofit_for_supporter = i[:other_np] ? @other_nonprofit : @nonprofit
          i[:entity] = create(:supporter, nonprofit: nonprofit_for_supporter)
          i[:cfm_ids].each do |j|
            cfm = CustomFieldMaster.exists?(id: j) ? CustomFieldMaster.find(j) : create(:custom_field_master, id: j, nonprofit: nonprofit_for_supporter, name: "CFM #{j}")

            create(:custom_field_join, :value_from_id, supporter_id: i[:entity].id, custom_field_master: cfm)
          end
        end
      end

      it 'invalid nonprofit-supporter combo returns okay' do
        results = InsertCustomFieldJoins.in_bulk(@nonprofit.id, [@supporters[:supporter_from_other_np][:entity].id], [])
        expect(results).to eq(successful_json(0, 0))
      end

      it 'strips cfms which dont belong to nonprofit' do
        results = InsertCustomFieldJoins.in_bulk(@nonprofit.id, [@supporters[:np_supporter_with_add][:entity].id],
                                                 create_cfm_data([100], [150]))
        expect(results).to eq(successful_json(0, 0))

        expect(CustomFieldJoin.where('supporter_id = ? and custom_field_master_id = ?', @supporters[:np_supporter_with_add][:entity].id, 100).count).to eq 0
      end

      it 'delete' do
        expect(CustomFieldJoin.count).to eq 13
        @supporters[:np_supporter_with_some_of_both][:entity].id

        results = InsertCustomFieldJoins.in_bulk(@nonprofit.id,
                                                 [@supporters[:np_supporter_with_some_of_both][:entity].id, @supporters[:np_supporter_with_cfms_to_delete][:entity].id, @supporters[:np_supporter_with_add][:entity].id, @supporters[:supporter_from_other_np][:entity].id, @supporters[:np_supporter_with_no_changes][:entity].id],
                                                 create_cfm_data(@add_cfm, @delete_cfm))

        expect(CustomFieldJoin.where('supporter_id = ? ', @supporters[:np_supporter_with_some_of_both][:entity].id).count).to eq 2

        expect(CustomFieldJoin.where('supporter_id = ?', @supporters[:np_supporter_with_add][:entity].id).count).to eq 5

        expect(CustomFieldJoin.where('supporter_id = ?', @supporters[:np_supporter_with_cfms_to_delete][:entity].id).count).to eq 4

        expect(CustomFieldJoin.where('supporter_id = ?', @supporters[:supporter_from_other_np][:entity].id).count).to eq 3

        expect(CustomFieldJoin.where('supporter_id = ?', @supporters[:np_supporter_with_no_changes][:entity].id).count).to eq 2

        expect(CustomFieldJoin.count).to eq 16
      end

      it 'id, updated_at, created_at changes are stripped' do
        invalid_id = 10_000_000
        Timecop.freeze(2020, 9, 1, 12, 0, 0) do
          results = InsertCustomFieldJoins.in_bulk(@nonprofit.id,
                                                   [@supporters[:np_supporter_with_add][:entity].id],
                                                   [{ custom_field_master_id: 25, value: 'CFM value 25', id: invalid_id, created_at: Time.now.ago(3000), updated_at: Time.now.ago(2999) }])
          expected = { custom_field_master_id: 25, value: 'CFM value 25', created_at: Time.now, updated_at: Time.now, supporter_id: @supporters[:np_supporter_with_add][:entity].id }.with_indifferent_access

          expect(results).to eq(successful_json(1, 0))

          result_tag = @supporters[:np_supporter_with_add][:entity].custom_field_joins.where('custom_field_master_id = ?', 25).first

          expect(result_tag.attributes.with_indifferent_access.reject { |k, _| k == 'id' }).to eq(expected)

          expect(result_tag.attributes[:id]).to_not eq invalid_id
        end
      end

      it 'add_to_one' do
        expect(CustomFieldJoin.count).to eq 13

        np_supporter_with_add_cfms = @supporters[:np_supporter_with_add][:entity].custom_field_joins.to_a
        np_supporter_with_some_of_both_cfms = @supporters[:np_supporter_with_some_of_both][:entity].custom_field_joins.to_a
        np_supporter_with_no_changes_cfms = @supporters[:np_supporter_with_no_changes][:entity].custom_field_joins.to_a

        Timecop.travel(20) do
          results = InsertCustomFieldJoins.in_bulk(@nonprofit.id,
                                                   [
                                                     @supporters[:np_supporter_with_add][:entity].id, # add 2
                                                     @supporters[:np_supporter_with_no_changes][:entity], # update 2
                                                     @supporters[:np_supporter_with_some_of_both][:entity].id
                                                   ], # add 2, delete 1
                                                   create_cfm_data(@add_cfm, @delete_cfm))

          expect(results).to eq(successful_json(6, 1))

          expect(@supporters[:np_supporter_with_no_changes][:entity].custom_field_joins).to match_array(np_supporter_with_no_changes_cfms)

          expect(CustomFieldJoin.where('supporter_id = ? ', @supporters[:np_supporter_with_add][:entity].id).count).to eq 5

          original_db_pairs = get_original_and_db(np_supporter_with_add_cfms, CustomFieldJoin.where('supporter_id = ? and custom_field_master_id in (?)',
                                                                                                    @supporters[:np_supporter_with_add][:entity].id,
                                                                                                    @supporters[:np_supporter_with_add][:cfm_ids]).pluck(:id))

          original_db_pairs.each do |orig, db|
            expect(db.attributes.length).to eq(orig.attributes.length)
            expect(db.attributes).to eq(orig.attributes)
          end

          expect(CustomFieldJoin.where('supporter_id = ?', @supporters[:np_supporter_with_some_of_both][:entity].id).count).to eq 2

          original_db_pairs = get_original_and_db(np_supporter_with_some_of_both_cfms, CustomFieldJoin.where('supporter_id = ? and custom_field_master_id in (?)',
                                                                                                             @supporters[:np_supporter_with_some_of_both][:entity].id,
                                                                                                             [35]).pluck(:id))
          skip_attribs = %w[updated_at value]
          original_db_pairs.each do |orig, db|
            expect(db.attributes.length).to eq(orig.attributes.length)
            expect(db.attributes.reject { |key, _value| skip_attribs.include?(key) }).to eq(orig.attributes.reject { |key, _value| skip_attribs.include?(key) })
            expect(db.attributes['updated_at']).to be > orig.attributes['updated_at']
            expect(db.attributes['value']).to eq 'CFM value 35'
          end

          expect(CustomFieldJoin.count).to eq 15
        end
      end
    end
  end

  def successful_json(inserted, deleted)
    { json: { inserted_count: inserted, removed_count: deleted }, status: :ok }
  end

  def create_cfm_data(cfm_to_add = [], cfm_to_delete = [])
    use_nil = true
    cfm_to_add.map { |cfm| { custom_field_master_id: cfm, value: "CFM value #{cfm}" } } + cfm_to_delete.map do |cfm|
                                                                                            value = use_nil ? nil : ''
                                                                                            use_nil = !use_nil
                                                                                            { custom_field_master_id: cfm, value: value }
                                                                                          end
  end

  def get_original_and_db(original_items, ids_to_verify)
    ids_to_verify.map do |i|
      original_item = original_items.find { |oi| oi[:id] == i }
      db_item = CustomFieldJoin.find(i)
      [original_item, db_item]
    end
  end
end