# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Packages::Nuget::MetadataExtractionService do
  let_it_be(:package_file) { create(:nuget_package).package_files.first }

  let(:service) { described_class.new(package_file.id) }

  describe '#execute' do
    subject { service.execute }

    context 'with valid package file id' do
      expected_metadata = {
        package_name: 'DummyProject.DummyPackage',
        package_version: '1.0.0',
        package_dependencies: [
          {
            name: 'Newtonsoft.Json',
            target_framework: '.NETCoreApp3.0',
            version: '12.0.3'
          }
        ],
        package_tags: [],
        package_types: []
      }

      it { is_expected.to eq(expected_metadata) }
    end

    context 'with nuspec file' do
      before do
        allow(service).to receive(:nuspec_file_content).and_return(fixture_file(nuspec_filepath))
      end

      context 'with dependencies' do
        let(:nuspec_filepath) { 'packages/nuget/with_dependencies.nuspec' }

        it { is_expected.to have_key(:package_dependencies) }

        it 'extracts dependencies' do
          dependencies = subject[:package_dependencies]

          expect(dependencies).to include(name: 'Moqi', version: '2.5.6')
          expect(dependencies).to include(name: 'Castle.Core')
          expect(dependencies).to include(name: 'Test.Dependency', version: '2.3.7', target_framework: '.NETStandard2.0')
          expect(dependencies).to include(name: 'Newtonsoft.Json', version: '12.0.3', target_framework: '.NETStandard2.0')
        end
      end

      context 'with package types' do
        let(:nuspec_filepath) { 'packages/nuget/with_package_types.nuspec' }

        it { is_expected.to have_key(:package_types) }

        it 'extracts package types' do
          expect(subject[:package_types]).to include('SymbolsPackage')
        end
      end

      context 'with a nuspec file with metadata' do
        let(:nuspec_filepath) { 'packages/nuget/with_metadata.nuspec' }

        it { expect(subject[:package_tags].sort).to eq(%w(foo bar test tag1 tag2 tag3 tag4 tag5).sort) }
      end
    end

    context 'with a nuspec file with metadata' do
      let_it_be(:nuspec_filepath) { 'packages/nuget/with_metadata.nuspec' }

      before do
        allow(service).to receive(:nuspec_file_content).and_return(fixture_file(nuspec_filepath))
      end

      it { expect(subject[:license_url]).to eq('https://opensource.org/licenses/MIT') }
      it { expect(subject[:project_url]).to eq('https://gitlab.com/gitlab-org/gitlab') }
      it { expect(subject[:icon_url]).to eq('https://opensource.org/files/osi_keyhole_300X300_90ppi_0.png') }
    end

    context 'with invalid package file id' do
      let(:package_file) { double('file', id: 555) }

      it { expect { subject }.to raise_error(::Packages::Nuget::MetadataExtractionService::ExtractionError, 'invalid package file') }
    end

    context 'linked to a non nuget package' do
      before do
        package_file.package.maven!
      end

      it { expect { subject }.to raise_error(::Packages::Nuget::MetadataExtractionService::ExtractionError, 'invalid package file') }
    end

    context 'with a 0 byte package file id' do
      before do
        allow_any_instance_of(Packages::PackageFileUploader).to receive(:size).and_return(0)
      end

      it { expect { subject }.to raise_error(::Packages::Nuget::MetadataExtractionService::ExtractionError, 'invalid package file') }
    end

    context 'without the nuspec file' do
      before do
        allow_any_instance_of(Zip::File).to receive(:glob).and_return([])
      end

      it { expect { subject }.to raise_error(::Packages::Nuget::MetadataExtractionService::ExtractionError, 'nuspec file not found') }
    end

    context 'with a too big nuspec file' do
      before do
        allow_any_instance_of(Zip::File).to receive(:glob).and_return([double('file', size: 6.megabytes)])
      end

      it { expect { subject }.to raise_error(::Packages::Nuget::MetadataExtractionService::ExtractionError, 'nuspec file too big') }
    end

    context 'with a corrupted nupkg file with a wrong entry size' do
      let(:nupkg_fixture_path) { expand_fixture_path('packages/nuget/corrupted_package.nupkg') }
      let(:expected_error) { "nuspec file has the wrong entry size: entry 'DummyProject.DummyPackage.nuspec' should be 255B, but is larger when inflated." }

      before do
        allow(Zip::File).to receive(:new).and_return(Zip::File.new(nupkg_fixture_path, false, false))
      end

      it { expect { subject }.to raise_error(::Packages::Nuget::MetadataExtractionService::ExtractionError, expected_error) }
    end
  end
end