# frozen_string_literal: true

require 'spec_helper'

RSpec.describe BulkImports::Entity, type: :model do
  describe 'associations' do
    it { is_expected.to belong_to(:bulk_import).required }
    it { is_expected.to belong_to(:parent) }
    it { is_expected.to belong_to(:group) }
    it { is_expected.to belong_to(:project) }
  end

  describe 'validations' do
    it { is_expected.to validate_presence_of(:source_type) }
    it { is_expected.to validate_presence_of(:source_full_path) }
    it { is_expected.to validate_presence_of(:destination_name) }

    it { is_expected.to define_enum_for(:source_type).with_values(%i[group_entity project_entity]) }

    context 'when associated with a group and project' do
      it 'is invalid' do
        entity = build(:bulk_import_entity, group: build(:group), project: build(:project))

        expect(entity).not_to be_valid
        expect(entity.errors).to include(:project, :group)
      end
    end

    context 'when not associated with a group or project' do
      it 'is valid' do
        entity = build(:bulk_import_entity, group: nil, project: nil)

        expect(entity).to be_valid
      end
    end

    context 'when associated with a group and no project' do
      it 'is valid as a group_entity' do
        entity = build(:bulk_import_entity, :group_entity, group: build(:group), project: nil)
        expect(entity).to be_valid
      end

      it 'is valid when destination_namespace is empty' do
        entity = build(:bulk_import_entity, :group_entity, group: build(:group), project: nil, destination_namespace: '')
        expect(entity).to be_valid
      end

      it 'is invalid as a project_entity' do
        entity = build(:bulk_import_entity, :project_entity, group: build(:group), project: nil)

        expect(entity).not_to be_valid
        expect(entity.errors).to include(:group)
      end
    end

    context 'when associated with a project and no group' do
      it 'is valid' do
        entity = build(:bulk_import_entity, :project_entity, group: nil, project: build(:project))

        expect(entity).to be_valid
      end

      it 'is invalid when destination_namespace is nil' do
        entity = build(:bulk_import_entity, :group_entity, group: build(:group), project: nil, destination_namespace: nil)
        expect(entity).not_to be_valid
        expect(entity.errors).to include(:destination_namespace)
      end

      it 'is invalid as a project_entity' do
        entity = build(:bulk_import_entity, :group_entity, group: nil, project: build(:project))

        expect(entity).not_to be_valid
        expect(entity.errors).to include(:project)
      end
    end

    context 'when the parent is a group import' do
      it 'is valid' do
        entity = build(:bulk_import_entity, parent: build(:bulk_import_entity, :group_entity))

        expect(entity).to be_valid
      end
    end

    context 'when the parent is a project import' do
      it 'is invalid' do
        entity = build(:bulk_import_entity, parent: build(:bulk_import_entity, :project_entity))

        expect(entity).not_to be_valid
        expect(entity.errors).to include(:parent)
      end
    end

    context 'validate destination namespace of a group_entity' do
      it 'is invalid if destination namespace is the source namespace' do
        group_a = create(:group, path: 'group_a')

        entity = build(
          :bulk_import_entity,
          :group_entity,
          source_full_path: group_a.full_path,
          destination_namespace: group_a.full_path
        )

        expect(entity).not_to be_valid
        expect(entity.errors).to include(:base)
        expect(entity.errors[:base])
          .to include('Import failed: Destination cannot be a subgroup of the source group. Change the destination and try again.')
      end

      it 'is invalid if destination namespace is a descendant of the source' do
        group_a = create(:group, path: 'group_a')
        group_b = create(:group, parent: group_a, path: 'group_b')

        entity = build(
          :bulk_import_entity,
          :group_entity,
          source_full_path: group_a.full_path,
          destination_namespace: group_b.full_path
        )

        expect(entity).not_to be_valid
        expect(entity.errors[:base])
          .to include('Import failed: Destination cannot be a subgroup of the source group. Change the destination and try again.')
      end
    end
  end

  describe '#encoded_source_full_path' do
    it 'encodes entity source full path' do
      expected = 'foo%2Fbar'
      entity = build(:bulk_import_entity, source_full_path: 'foo/bar')

      expect(entity.encoded_source_full_path).to eq(expected)
    end
  end

  describe 'scopes' do
    describe '.by_user_id' do
      it 'returns entities associated with specified user' do
        user = create(:user)
        import = create(:bulk_import, user: user)
        entity_1 = create(:bulk_import_entity, bulk_import: import)
        entity_2 = create(:bulk_import_entity, bulk_import: import)
        create(:bulk_import_entity)

        expect(described_class.by_user_id(user.id)).to contain_exactly(entity_1, entity_2)
      end
    end
  end

  describe '.all_human_statuses' do
    it 'returns all human readable entity statuses' do
      expect(described_class.all_human_statuses).to contain_exactly('created', 'started', 'finished', 'failed')
    end
  end

  describe '#pipelines' do
    context 'when entity is group' do
      it 'returns group pipelines' do
        entity = build(:bulk_import_entity, :group_entity)

        expect(entity.pipelines.flatten).to include(BulkImports::Groups::Pipelines::GroupPipeline)
      end
    end

    context 'when entity is project' do
      it 'returns project pipelines' do
        entity = build(:bulk_import_entity, :project_entity)

        expect(entity.pipelines.flatten).to include(BulkImports::Projects::Pipelines::ProjectPipeline)
      end
    end
  end

  describe '#create_pipeline_trackers!' do
    context 'when entity is group' do
      it 'creates trackers for group entity' do
        entity = create(:bulk_import_entity, :group_entity)
        entity.create_pipeline_trackers!

        expect(entity.trackers.count).to eq(BulkImports::Groups::Stage.new(entity.bulk_import).pipelines.count)
        expect(entity.trackers.map(&:pipeline_name)).to include(BulkImports::Groups::Pipelines::GroupPipeline.to_s)
      end
    end

    context 'when entity is project' do
      it 'creates trackers for project entity' do
        entity = create(:bulk_import_entity, :project_entity)
        entity.create_pipeline_trackers!

        expect(entity.trackers.count).to eq(BulkImports::Projects::Stage.new(entity.bulk_import).pipelines.count)
        expect(entity.trackers.map(&:pipeline_name)).to include(BulkImports::Projects::Pipelines::ProjectPipeline.to_s)
      end
    end
  end

  describe '#pipeline_exists?' do
    let_it_be(:entity) { create(:bulk_import_entity, :group_entity) }

    it 'returns true when the given pipeline name exists in the pipelines list' do
      expect(entity.pipeline_exists?(BulkImports::Groups::Pipelines::GroupPipeline)).to eq(true)
      expect(entity.pipeline_exists?('BulkImports::Groups::Pipelines::GroupPipeline')).to eq(true)
    end

    it 'returns false when the given pipeline name exists in the pipelines list' do
      expect(entity.pipeline_exists?('BulkImports::Groups::Pipelines::InexistentPipeline')).to eq(false)
    end
  end

  describe '#pluralized_name' do
    context 'when entity is group' do
      it 'returns groups' do
        entity = build(:bulk_import_entity, :group_entity)

        expect(entity.pluralized_name).to eq('groups')
      end
    end

    context 'when entity is project' do
      it 'returns projects' do
        entity = build(:bulk_import_entity, :project_entity)

        expect(entity.pluralized_name).to eq('projects')
      end
    end
  end

  describe '#export_relations_url_path' do
    context 'when entity is group' do
      it 'returns group export relations url' do
        entity = build(:bulk_import_entity, :group_entity)

        expect(entity.export_relations_url_path).to eq("/groups/#{entity.encoded_source_full_path}/export_relations")
      end
    end

    context 'when entity is project' do
      it 'returns project export relations url' do
        entity = build(:bulk_import_entity, :project_entity)

        expect(entity.export_relations_url_path).to eq("/projects/#{entity.encoded_source_full_path}/export_relations")
      end
    end
  end

  describe '#relation_download_url_path' do
    it 'returns export relations url with download query string' do
      entity = build(:bulk_import_entity)

      expect(entity.relation_download_url_path('test'))
        .to eq("/groups/#{entity.encoded_source_full_path}/export_relations/download?relation=test")
    end
  end
end