# frozen_string_literal: true

require "spec_helper"

RSpec.describe Integrations::Discord do
  it_behaves_like "chat integration", "Discord notifications" do
    let(:client) { Discordrb::Webhooks::Client }
    let(:client_arguments) { { url: webhook_url } }
    let(:payload) do
      {
        embeds: [
          include(
            author: include(name: be_present),
            description: be_present,
            color: be_present,
            timestamp: be_present
          )
        ]
      }
    end
  end

  describe '#execute' do
    include StubRequests

    let(:user) { create(:user) }
    let(:project) { create(:project, :repository) }
    let(:webhook_url) { "https://example.gitlab.com/" }

    let(:sample_data) do
      Gitlab::DataBuilder::Push.build_sample(project, user)
    end

    before do
      allow(subject).to receive_messages(
        project: project,
        project_id: project.id,
        webhook: webhook_url
      )

      WebMock.stub_request(:post, webhook_url)
    end

    it 'uses the right embed parameters' do
      builder = Discordrb::Webhooks::Builder.new

      allow_next_instance_of(Discordrb::Webhooks::Client) do |client|
        allow(client).to receive(:execute).and_yield(builder)
      end

      freeze_time do
        subject.execute(sample_data)

        expect(builder.to_json_hash[:embeds].first).to include(
          description: start_with("#{user.name} pushed to branch [master](http://localhost/#{project.namespace.path}/#{project.path}/commits/master) of"),
          author: hash_including(
            icon_url: start_with('https://www.gravatar.com/avatar/'),
            name: user.name
          ),
          color: 16543014,
          timestamp: Time.now.utc.iso8601
        )
      end
    end

    context 'DNS rebind to local address' do
      before do
        stub_dns(webhook_url, ip_address: '192.168.2.120')
      end

      it 'does not allow DNS rebinding' do
        expect { subject.execute(sample_data) }.to raise_error(ArgumentError, /is blocked/)
      end
    end

    context 'when the Discord request fails' do
      before do
        WebMock.stub_request(:post, webhook_url).to_return(status: 400)
      end

      it 'logs an error and returns false' do
        expect(subject).to receive(:log_error).with('400 Bad Request')
        expect(subject.execute(sample_data)).to be(false)
      end
    end
  end
end