Feature: Slack integration (#783)

- Integrations architecture
- Slack integration

spec/requests/api/v1/accounts/integrations/slack_request_spec.rb

@@ -0,0 +1,77 @@
+require 'rails_helper'
+
+RSpec.describe 'Api::V1::Accounts::Integrations::Slacks', type: :request do
+  let(:account) { create(:account) }
+  let(:agent) { create(:user, account: account, role: :agent) }
+  let(:hook) { create(:integrations_hook, account: account) }
+
+  describe 'POST /api/v1/accounts/{account.id}/integrations/slack' do
+    context 'when it is an unauthenticated user' do
+      it 'returns unauthorized' do
+        post "/api/v1/accounts/#{account.id}/integrations/slack", params: {}
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an authenticated user' do
+      it 'creates hook' do
+        hook_builder = Integrations::Slack::HookBuilder.new(account: account, code: SecureRandom.hex)
+        hook_builder.stub(:fetch_access_token) { SecureRandom.hex }
+
+        expect(Integrations::Slack::HookBuilder).to receive(:new).and_return(hook_builder)
+
+        post "/api/v1/accounts/#{account.id}/integrations/slack",
+             params: { code: SecureRandom.hex },
+             headers: agent.create_new_auth_token
+
+        expect(response).to have_http_status(:success)
+        json_response = JSON.parse(response.body)
+        expect(json_response['app_id']).to eql('cw_slack')
+      end
+    end
+
+    describe 'PUT /api/v1/accounts/{account.id}/integrations/slack/{id}' do
+      context 'when it is an unauthenticated user' do
+        it 'returns unauthorized' do
+          put "/api/v1/accounts/#{account.id}/integrations/slack/#{hook.id}", params: {}
+          expect(response).to have_http_status(:unauthorized)
+        end
+      end
+
+      context 'when it is an authenticated user' do
+        it 'updates hook' do
+          channel_builder = Integrations::Slack::ChannelBuilder.new(hook: hook, channel: 'channel')
+          channel_builder.stub(:perform)
+
+          expect(Integrations::Slack::ChannelBuilder).to receive(:new).and_return(channel_builder)
+
+          put "/api/v1/accounts/#{account.id}/integrations/slack/#{hook.id}",
+              params: { channel: SecureRandom.hex },
+              headers: agent.create_new_auth_token
+
+          expect(response).to have_http_status(:success)
+          json_response = JSON.parse(response.body)
+          expect(json_response['app_id']).to eql('cw_slack')
+        end
+      end
+    end
+
+    describe 'DELETE /api/v1/accounts/{account.id}/integrations/slack/{id}' do
+      context 'when it is an unauthenticated user' do
+        it 'returns unauthorized' do
+          delete "/api/v1/accounts/#{account.id}/integrations/slack/#{hook.id}", params: {}
+          expect(response).to have_http_status(:unauthorized)
+        end
+      end
+
+      context 'when it is an authenticated user' do
+        it 'deletes hook' do
+          delete "/api/v1/accounts/#{account.id}/integrations/slack/#{hook.id}",
+                 headers: agent.create_new_auth_token
+          expect(response).to have_http_status(:success)
+          expect(Integrations::Hook.find_by(id: hook.id)).to be nil
+        end
+      end
+    end
+  end
+end

spec/requests/api/v1/integrations/webhooks_request_spec.rb

@@ -0,0 +1,15 @@
+require 'rails_helper'
+
+RSpec.describe 'Api::V1::Integrations::Webhooks', type: :request do
+  describe 'POST /api/v1/integrations/webhooks' do
+    it 'consumes webhook' do
+      builder = Integrations::Slack::IncomingMessageBuilder.new({})
+      builder.stub(:perform) { true }
+
+      expect(Integrations::Slack::IncomingMessageBuilder).to receive(:new).and_return(builder)
+
+      post '/api/v1/integrations/webhooks', params: {}
+      expect(response).to have_http_status(:success)
+    end
+  end
+end