# frozen_string_literal: true

require 'spec_helper'

RSpec.describe SubmitUsagePingService do
  include StubRequests
  include UsageDataHelpers

  let(:score_params) do
    {
      score: {
        leader_issues: 10.2,
        instance_issues: 3.2,
        percentage_issues: 31.37,

        leader_notes: 25.3,
        instance_notes: 23.2,

        leader_milestones: 16.2,
        instance_milestones: 5.5,

        leader_boards: 5.2,
        instance_boards: 3.2,

        leader_merge_requests: 5.2,
        instance_merge_requests: 3.2,

        leader_ci_pipelines: 25.1,
        instance_ci_pipelines: 21.3,

        leader_environments: 3.3,
        instance_environments: 2.2,

        leader_deployments: 41.3,
        instance_deployments: 15.2,

        leader_projects_prometheus_active: 0.31,
        instance_projects_prometheus_active: 0.30,

        leader_service_desk_issues: 15.8,
        instance_service_desk_issues: 15.1,

        non_existing_column: 'value'
      }
    }
  end

  let(:with_dev_ops_score_params) { { dev_ops_score: score_params[:score] } }
  let(:with_conv_index_params) { { conv_index: score_params[:score] } }
  let(:without_dev_ops_score_params) { { dev_ops_score: {} } }

  shared_examples 'does not run' do
    it do
      expect(Gitlab::HTTP).not_to receive(:post)
      expect(Gitlab::UsageData).not_to receive(:to_json)

      subject.execute
    end
  end

  shared_examples 'does not send a blank usage ping payload' do
    it do
      expect(Gitlab::HTTP).not_to receive(:post)

      expect { subject.execute }.to raise_error(described_class::SubmissionError) do |error|
        expect(error.message).to include('Usage data is blank')
      end
    end
  end

  shared_examples 'saves DevOps score data from the response' do
    it do
      expect { subject.execute }
        .to change { DevOpsScore::Metric.count }
        .by(1)

      expect(DevOpsScore::Metric.last.leader_issues).to eq 10.2
      expect(DevOpsScore::Metric.last.instance_issues).to eq 3.2
      expect(DevOpsScore::Metric.last.percentage_issues).to eq 31.37
    end
  end

  context 'when usage ping is disabled' do
    before do
      stub_application_setting(usage_ping_enabled: false)
    end

    it_behaves_like 'does not run'
  end

  context 'when usage ping is enabled' do
    before do
      stub_usage_data_connections
      stub_application_setting(usage_ping_enabled: true)
    end

    context 'and user requires usage stats consent' do
      before do
        allow(User).to receive(:single_user).and_return(double(:user, requires_usage_stats_consent?: true))
      end

      it_behaves_like 'does not run'
    end

    it 'sends a POST request' do
      response = stub_response(body: without_dev_ops_score_params)

      subject.execute

      expect(response).to have_been_requested
    end

    it 'forces a refresh of usage data statistics before submitting' do
      stub_response(body: without_dev_ops_score_params)

      expect(Gitlab::UsageData).to receive(:to_json).with(force_refresh: true).and_call_original

      subject.execute
    end

    context 'when conv_index data is passed' do
      before do
        stub_response(body: with_conv_index_params)
      end

      it_behaves_like 'saves DevOps score data from the response'
    end

    context 'when DevOps score data is passed' do
      before do
        stub_response(body: with_dev_ops_score_params)
      end

      it_behaves_like 'saves DevOps score data from the response'
    end

    context 'and usage ping response has unsuccessful status' do
      before do
        stub_response(body: nil, status: 504)
      end

      it 'raises an exception' do
        expect { subject.execute }.to raise_error(described_class::SubmissionError) do |error|
          expect(error.message).to include('Unsuccessful response code: 504')
        end
      end
    end

    context 'and usage data is empty string' do
      before do
        allow(Gitlab::UsageData).to receive(:to_json).and_return("")
      end

      it_behaves_like 'does not send a blank usage ping payload'
    end

    context 'and usage data is nil' do
      before do
        allow(Gitlab::UsageData).to receive(:to_json).and_return(nil)
      end

      it_behaves_like 'does not send a blank usage ping payload'
    end
  end

  def stub_response(body:, status: 201)
    stub_full_request(SubmitUsagePingService::STAGING_URL, method: :post)
      .to_return(
        headers: { 'Content-Type' => 'application/json' },
        body: body.to_json,
        status: status
      )
  end
end