# frozen_string_literal: true

require 'spec_helper'

describe 'getting project information' do
  include GraphqlHelpers

  let(:project) { create(:project, :repository) }
  let(:current_user) { create(:user) }

  let(:query) do
    graphql_query_for(
      'project',
      { 'fullPath' => project.full_path },
      all_graphql_fields_for('project'.to_s.classify, excluded: %w(jiraImports services))
    )
  end

  context 'when the user has full access to the project' do
    let(:full_access_query) do
      graphql_query_for('project', 'fullPath' => project.full_path)
    end

    before do
      project.add_maintainer(current_user)
    end

    it 'includes the project' do
      post_graphql(query, current_user: current_user)

      expect(graphql_data['project']).not_to be_nil
    end
  end

  context 'when the user has access to the project' do
    before do
      project.add_developer(current_user)
    end

    it 'includes the project' do
      post_graphql(query, current_user: current_user)

      expect(graphql_data['project']).not_to be_nil
    end

    it_behaves_like 'a working graphql query' do
      before do
        post_graphql(query, current_user: current_user)
      end
    end

    context 'when there are pipelines present' do
      before do
        create(:ci_pipeline, project: project)
      end

      it 'is included in the pipelines connection' do
        post_graphql(query, current_user: current_user)

        expect(graphql_data['project']['pipelines']['edges'].size).to eq(1)
      end
    end
  end

  describe 'performance' do
    before do
      project.add_developer(current_user)
      mrs = create_list(:merge_request, 10, :closed, :with_head_pipeline,
                        source_project: project,
                        author: current_user)
      mrs.each do |mr|
        mr.assignees << create(:user)
        mr.assignees << current_user
      end
    end

    def run_query(number)
      q = <<~GQL
      query {
        project(fullPath: "#{project.full_path}") {
          mergeRequests(first: #{number}) {
            nodes {
              assignees { nodes { username } }
              headPipeline { status }
            }
          }
        }
      }
      GQL

      post_graphql(q, current_user: current_user)
    end

    it 'returns appropriate results' do
      run_query(2)

      mrs = graphql_data.dig('project', 'mergeRequests', 'nodes')

      expect(mrs.size).to eq(2)
      expect(mrs).to all(
        match(
          a_hash_including(
            'assignees' => { 'nodes' => all(match(a_hash_including('username' => be_present))) },
            'headPipeline' => { 'status' => be_present }
          )))
    end

    it 'can lookahead to eliminate N+1 queries', :use_clean_rails_memory_store_caching, :request_store do
      expect { run_query(10) }.to issue_same_number_of_queries_as { run_query(1) }.or_fewer.ignoring_cached_queries
    end
  end

  context 'when the user does not have access to the project' do
    it 'returns an empty field' do
      post_graphql(query, current_user: current_user)

      expect(graphql_data['project']).to be_nil
    end

    it_behaves_like 'a working graphql query' do
      before do
        post_graphql(query, current_user: current_user)
      end
    end
  end
end