2 files changed, 84 insertions, 0 deletions
diff --git a/app/services/jira/requests/base.rb b/app/services/jira/requests/base.rb
new file mode 100644
index 00000000000..7521c7610cb
--- /dev/null
+++ b/app/services/jira/requests/base.rb
@@ -0,0 +1,52 @@
+# frozen_string_literal: true
+
+module Jira
+  module Requests
+    class Base
+      include ProjectServicesLoggable
+
+      PER_PAGE = 50
+
+      attr_reader :jira_service, :project, :limit, :start_at, :query
+
+      def initialize(jira_service, limit: PER_PAGE, start_at: 0, query: nil)
+        @project = jira_service&.project
+        @jira_service = jira_service
+
+        @limit    = limit
+        @start_at = start_at
+        @query    = query
+      end
+
+      def execute
+        return ServiceResponse.error(message: _('Jira service not configured.')) unless jira_service&.active?
+        return ServiceResponse.success(payload: empty_payload) if limit.to_i <= 0
+
+        request
+      end
+
+      private
+
+      def client
+        @client ||= jira_service.client
+      end
+
+      def request
+        response = client.get(url)
+        build_service_response(response)
+      rescue Timeout::Error, Errno::EINVAL, Errno::ECONNRESET, Errno::ECONNREFUSED, URI::InvalidURIError, JIRA::HTTPError, OpenSSL::SSL::SSLError => error
+        error_message = "Jira request error: #{error.message}"
+        log_error("Error sending message", client_url: client.options[:site], error: error_message)
+        ServiceResponse.error(message: error_message)
+      end
+
+      def url
+        raise NotImplementedError
+      end
+
+      def build_service_response(response)
+        raise NotImplementedError
+      end
+    end
+  end
+end
diff --git a/app/services/jira/requests/projects.rb b/app/services/jira/requests/projects.rb
new file mode 100644
index 00000000000..da464503211
--- /dev/null
+++ b/app/services/jira/requests/projects.rb
@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+module Jira
+  module Requests
+    class Projects < Base
+      extend ::Gitlab::Utils::Override
+
+      private
+
+      override :url
+      def url
+        '/rest/api/2/project/search?query=%{query}&maxResults=%{limit}&startAt=%{start_at}' %
+        { query: CGI.escape(query.to_s), limit: limit.to_i, start_at: start_at.to_i }
+      end
+
+      override :build_service_response
+      def build_service_response(response)
+        return ServiceResponse.success(payload: empty_payload) unless response['values'].present?
+
+        ServiceResponse.success(payload: { projects: map_projects(response), is_last: response['isLast'] })
+      end
+
+      def map_projects(response)
+        response['values'].map { |v| JIRA::Resource::Project.build(client, v) }
+      end
+
+      def empty_payload
+        { projects: [], is_last: true }
+      end
+    end
+  end
+end