# frozen_string_literal: true

require 'spec_helper'

RSpec.describe JiraConnect::SubscriptionsController, feature_category: :integrations do
  let_it_be(:installation) { create(:jira_connect_installation) }

  describe '#index' do
    before do
      request.headers['Accept'] = content_type

      get :index, params: { jwt: jwt }
    end

    let(:content_type) { 'text/html' }

    context 'without JWT' do
      let(:jwt) { nil }

      it 'returns 403' do
        expect(response).to have_gitlab_http_status(:forbidden)
      end
    end

    context 'with valid JWT' do
      let(:qsh) { Atlassian::Jwt.create_query_string_hash('https://gitlab.test/subscriptions', 'GET', 'https://gitlab.test') }
      let(:jwt) { Atlassian::Jwt.encode({ iss: installation.client_key, qsh: qsh }, installation.shared_secret) }

      it 'returns 200' do
        expect(response).to have_gitlab_http_status(:ok)
      end

      it 'removes X-Frame-Options to allow rendering in iframe' do
        expect(response.headers['X-Frame-Options']).to be_nil
      end

      context 'with JSON format' do
        let_it_be(:subscription) { create(:jira_connect_subscription, installation: installation) }

        let(:content_type) { 'application/json' }

        it 'renders the relevant data as JSON', :aggregate_failures do
          expect(json_response).to include('groups_path' => api_v4_groups_path(params: { min_access_level: Gitlab::Access::MAINTAINER, skip_groups: [subscription.namespace_id] }))
          expect(json_response).to include(
            'subscriptions' => [
              'group' => {
                'name' => subscription.namespace.name,
                'avatar_url' => subscription.namespace.avatar_url,
                'full_name' => subscription.namespace.full_name,
                'description' => subscription.namespace.description
              },
              'created_at' => subscription.created_at.iso8601(3),
              'unlink_path' => jira_connect_subscription_path(subscription)
            ]
          )
          expect(json_response).to include('subscriptions_path' => jira_connect_subscriptions_path)
        end

        context 'with context qsh' do
          # The JSON endpoint will be requested by frontend using a JWT that Atlassian provides via Javascript.
          # This JWT will likely use a context-qsh because Atlassian don't know for which endpoint it will be used.
          # Read more about context JWT here: https://developer.atlassian.com/cloud/jira/platform/understanding-jwt-for-connect-apps/

          let(:qsh) { 'context-qsh' }

          specify do
            expect(response).to have_gitlab_http_status(:ok)
          end
        end
      end
    end
  end

  describe '#create' do
    let(:group) { create(:group) }
    let(:user) { create(:user) }

    before do
      group.add_maintainer(user)
    end

    subject { post :create, params: { jwt: jwt, namespace_path: group.path, format: :json } }

    context 'without JWT' do
      let(:jwt) { nil }

      it 'returns 403' do
        sign_in(user)

        subject

        expect(response).to have_gitlab_http_status(:forbidden)
      end
    end

    context 'with valid JWT' do
      let(:claims) { { iss: installation.client_key, sub: 1234, qsh: '123' } }
      let(:jwt) { Atlassian::Jwt.encode(claims, installation.shared_secret) }
      let(:jira_user) { { 'groups' => { 'items' => [{ 'name' => jira_group_name }] } } }
      let(:jira_group_name) { 'site-admins' }

      context 'signed in to GitLab' do
        before do
          sign_in(user)
          WebMock
            .stub_request(:get, "#{installation.base_url}/rest/api/3/user?accountId=1234&expand=groups")
            .to_return(body: jira_user.to_json, status: 200, headers: { 'Content-Type' => 'application/json' })
        end

        context 'dev panel integration is available' do
          it 'creates a subscription' do
            expect { subject }.to change { installation.subscriptions.count }.from(0).to(1)
          end

          it 'returns 200' do
            subject

            expect(response).to have_gitlab_http_status(:ok)
          end
        end

        context 'when the Jira user is not a site-admin' do
          let(:jira_group_name) { 'some-other-group' }

          it 'returns forbidden' do
            subject

            expect(response).to have_gitlab_http_status(:forbidden)
          end
        end
      end

      context 'not signed in to GitLab' do
        it 'returns 401' do
          subject

          expect(response).to have_gitlab_http_status(:unauthorized)
        end
      end
    end
  end

  describe '#destroy' do
    let(:subscription) { create(:jira_connect_subscription, installation: installation) }
    let(:jira_user) { { 'groups' => { 'items' => [{ 'name' => jira_group_name }] } } }
    let(:jira_group_name) { 'site-admins' }

    before do
      WebMock
        .stub_request(:get, "#{installation.base_url}/rest/api/3/user?accountId=1234&expand=groups")
        .to_return(body: jira_user.to_json, status: 200, headers: { 'Content-Type' => 'application/json' })

      delete :destroy, params: { jwt: jwt, id: subscription.id, format: :json }
    end

    context 'without JWT' do
      let(:jwt) { nil }

      it 'returns 403' do
        expect(response).to have_gitlab_http_status(:forbidden)
      end
    end

    context 'with valid JWT' do
      let(:claims) { { iss: installation.client_key, sub: 1234, qsh: '123' } }
      let(:jwt) { Atlassian::Jwt.encode(claims, installation.shared_secret) }

      it 'deletes the subscription' do
        expect { subscription.reload }.to raise_error ActiveRecord::RecordNotFound
        expect(response).to have_gitlab_http_status(:ok)
      end

      context 'when the Jira user is not a site admin' do
        let(:jira_group_name) { 'some-other-group' }

        it 'does not delete the subscription' do
          expect(response).to have_gitlab_http_status(:forbidden)

          expect { subscription.reload }.not_to raise_error
        end
      end
    end
  end
end