Create graphQL endpoint for Jira users import

- add mutation, JiraUser graphql type
- call repective service

app/graphql/mutations/jira_import/import_users.rb

+# frozen_string_literal: true
+
+module Mutations
+  module JiraImport
+    class ImportUsers < BaseMutation
+      include ResolvesProject
+
+      graphql_name 'JiraImportUsers'
+
+      field :jira_users,
+            [Types::JiraUserType],
+            null: true,
+            description: 'Users returned from Jira, matched by email and name if possible.'
+
+      argument :project_path, GraphQL::ID_TYPE,
+               required: true,
+               description: 'The project to import the Jira users into'
+      argument :start_at, GraphQL::INT_TYPE,
+               required: false,
+               description: 'The index of the record the import should started at, default 0 (50 records returned)'
+
+      def resolve(project_path:, start_at:)
+        project = authorized_find!(full_path: project_path)
+
+        service_response = ::JiraImport::UsersImporter.new(context[:current_user], project, start_at).execute
+
+        {
+          jira_users: service_response.payload,
+          errors: service_response.errors
+        }
+      end
+
+      private
+
+      def find_object(full_path:)
+        resolve_project(full_path: full_path)
+      end
+
+      def authorized_resource?(project)
+        Ability.allowed?(context[:current_user], :admin_project, project)
+      end
+    end
+  end
+end

app/graphql/types/jira_user_type.rb

+# frozen_string_literal: true
+
+module Types
+  # rubocop: disable Graphql/AuthorizeTypes
+  # Authorization is at project level for owners or admins on mutation level
+  class JiraUserType < BaseObject
+    graphql_name 'JiraUser'
+
+    field :jira_account_id, GraphQL::STRING_TYPE, null: false,
+          description: 'Account id of the Jira user'
+    field :jira_display_name, GraphQL::STRING_TYPE, null: false,
+          description: 'Display name of the Jira user'
+    field :jira_email, GraphQL::STRING_TYPE, null: true,
+          description: 'Email of the Jira user, returned only for users with public emails'
+    field :gitlab_id, GraphQL::INT_TYPE, null: true,
+          description: 'Id of the matched GitLab user'
+  end
+  # rubocop: enable Graphql/AuthorizeTypes
+end

app/graphql/types/mutation_type.rb

@@ -48,6 +48,7 @@ module Types
     mount_mutation Mutations::Snippets::Create
     mount_mutation Mutations::Snippets::MarkAsSpam
     mount_mutation Mutations::JiraImport::Start
+    mount_mutation Mutations::JiraImport::ImportUsers
     mount_mutation Mutations::DesignManagement::Upload, calls_gitaly: true
     mount_mutation Mutations::DesignManagement::Delete, calls_gitaly: true
     mount_mutation Mutations::ContainerExpirationPolicies::Update

app/services/jira_import/users_importer.rb

@@ -22,6 +22,8 @@ module JiraImport
     rescue Timeout::Error, Errno::EINVAL, Errno::ECONNRESET, Errno::ECONNREFUSED, URI::InvalidURIError, JIRA::HTTPError, OpenSSL::SSL::SSLError => error
       Gitlab::ErrorTracking.track_exception(error, project_id: project.id, request: url)
       ServiceResponse.error(message: "There was an error when communicating to Jira: #{error.message}")
+    rescue Projects::ImportService::Error => error
+      ServiceResponse.error(message: error.message)
     end
 
     private

app/services/service_response.rb

@@ -26,6 +26,12 @@ class ServiceResponse
     status == :error
   end
 
+  def errors
+    return [] unless error?
+
+    Array.wrap(message)
+  end
+
   private
 
   attr_writer :status, :message, :http_status, :payload

changelogs/unreleased/216145-jira-users-import-endpoint.yml

+---
+title: Create graphQL endpoint for Jira users import
+merge_request: 33501
+author:
+type: added

doc/api/graphql/reference/gitlab_schema.graphql

@@ -5926,6 +5926,46 @@ type JiraImportStartPayload {
   jiraImport: JiraImport
 }
 
+"""
+Autogenerated input type of JiraImportUsers
+"""
+input JiraImportUsersInput {
+  """
+  A unique identifier for the client performing the mutation.
+  """
+  clientMutationId: String
+
+  """
+  The project to import the Jira users into
+  """
+  projectPath: ID!
+
+  """
+  The index of the record the import should started at, default 0 (50 records returned)
+  """
+  startAt: Int
+}
+
+"""
+Autogenerated return type of JiraImportUsers
+"""
+type JiraImportUsersPayload {
+  """
+  A unique identifier for the client performing the mutation.
+  """
+  clientMutationId: String
+
+  """
+  Errors encountered during execution of the mutation.
+  """
+  errors: [String!]!
+
+  """
+  Users returned from Jira, matched by email and name if possible.
+  """
+  jiraUsers: [JiraUser!]
+}
+
 type JiraProject {
   """
   Key of the Jira project
@@ -6020,6 +6060,28 @@ type JiraService implements Service {
   type: String
 }
 
+type JiraUser {
+  """
+  Id of the matched GitLab user
+  """
+  gitlabId: Int
+
+  """
+  Account id of the Jira user
+  """
+  jiraAccountId: String!
+
+  """
+  Display name of the Jira user
+  """
+  jiraDisplayName: String!
+
+  """
+  Email of the Jira user, returned only for users with public emails
+  """
+  jiraEmail: String
+}
+
 type Label {
   """
   Background color of the label
@@ -7259,6 +7321,7 @@ type Mutation {
   issueSetIteration(input: IssueSetIterationInput!): IssueSetIterationPayload
   issueSetWeight(input: IssueSetWeightInput!): IssueSetWeightPayload
   jiraImportStart(input: JiraImportStartInput!): JiraImportStartPayload
+  jiraImportUsers(input: JiraImportUsersInput!): JiraImportUsersPayload
   markAsSpamSnippet(input: MarkAsSpamSnippetInput!): MarkAsSpamSnippetPayload
   mergeRequestCreate(input: MergeRequestCreateInput!): MergeRequestCreatePayload
   mergeRequestSetAssignees(input: MergeRequestSetAssigneesInput!): MergeRequestSetAssigneesPayload

doc/api/graphql/reference/gitlab_schema.json

@@ -16341,6 +16341,126 @@
           "enumValues": null,
           "possibleTypes": null
         },
+        {
+          "kind": "INPUT_OBJECT",
+          "name": "JiraImportUsersInput",
+          "description": "Autogenerated input type of JiraImportUsers",
+          "fields": null,
+          "inputFields": [
+            {
+              "name": "projectPath",
+              "description": "The project to import the Jira users into",
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "ID",
+                  "ofType": null
+                }
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "startAt",
+              "description": "The index of the record the import should started at, default 0 (50 records returned)",
+              "type": {
+                "kind": "SCALAR",
+                "name": "Int",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "clientMutationId",
+              "description": "A unique identifier for the client performing the mutation.",
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "defaultValue": null
+            }
+          ],
+          "interfaces": null,
+          "enumValues": null,
+          "possibleTypes": null
+        },
+        {
+          "kind": "OBJECT",
+          "name": "JiraImportUsersPayload",
+          "description": "Autogenerated return type of JiraImportUsers",
+          "fields": [
+            {
+              "name": "clientMutationId",
+              "description": "A unique identifier for the client performing the mutation.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "errors",
+              "description": "Errors encountered during execution of the mutation.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "LIST",
+                  "name": null,
+                  "ofType": {
+                    "kind": "NON_NULL",
+                    "name": null,
+                    "ofType": {
+                      "kind": "SCALAR",
+                      "name": "String",
+                      "ofType": null
+                    }
+                  }
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "jiraUsers",
+              "description": "Users returned from Jira, matched by email and name if possible.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "LIST",
+                "name": null,
+                "ofType": {
+                  "kind": "NON_NULL",
+                  "name": null,
+                  "ofType": {
+                    "kind": "OBJECT",
+                    "name": "JiraUser",
+                    "ofType": null
+                  }
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "inputFields": null,
+          "interfaces": [
+
+          ],
+          "enumValues": null,
+          "possibleTypes": null
+        },
         {
           "kind": "OBJECT",
           "name": "JiraProject",
@@ -16624,6 +16744,83 @@
           "enumValues": null,
           "possibleTypes": null
         },
+        {
+          "kind": "OBJECT",
+          "name": "JiraUser",
+          "description": null,
+          "fields": [
+            {
+              "name": "gitlabId",
+              "description": "Id of the matched GitLab user",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "Int",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "jiraAccountId",
+              "description": "Account id of the Jira user",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "jiraDisplayName",
+              "description": "Display name of the Jira user",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "jiraEmail",
+              "description": "Email of the Jira user, returned only for users with public emails",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "inputFields": null,
+          "interfaces": [
+
+          ],
+          "enumValues": null,
+          "possibleTypes": null
+        },
         {
           "kind": "OBJECT",
           "name": "Label",
@@ -21014,6 +21211,33 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "jiraImportUsers",
+              "description": null,
+              "args": [
+                {
+                  "name": "input",
+                  "description": null,
+                  "type": {
+                    "kind": "NON_NULL",
+                    "name": null,
+                    "ofType": {
+                      "kind": "INPUT_OBJECT",
+                      "name": "JiraImportUsersInput",
+                      "ofType": null
+                    }
+                  },
+                  "defaultValue": null
+                }
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "JiraImportUsersPayload",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "markAsSpamSnippet",
               "description": null,

doc/api/graphql/reference/index.md

@@ -869,6 +869,16 @@ Autogenerated return type of JiraImportStart
 | `errors` | String! => Array | Errors encountered during execution of the mutation. |
 | `jiraImport` | JiraImport | The Jira import data after mutation |
 
+## JiraImportUsersPayload
+
+Autogenerated return type of JiraImportUsers
+
+| Name  | Type  | Description |
+| ---   |  ---- | ----------  |
+| `clientMutationId` | String | A unique identifier for the client performing the mutation. |
+| `errors` | String! => Array | Errors encountered during execution of the mutation. |
+| `jiraUsers` | JiraUser! => Array | Users returned from Jira, matched by email and name if possible. |
+
 ## JiraProject
 
 | Name  | Type  | Description |
@@ -885,6 +895,15 @@ Autogenerated return type of JiraImportStart
 | `projects` | JiraProjectConnection | List of Jira projects fetched through Jira REST API |
 | `type` | String | Class name of the service |
 
+## JiraUser
+
+| Name  | Type  | Description |
+| ---   |  ---- | ----------  |
+| `gitlabId` | Int | Id of the matched GitLab user |
+| `jiraAccountId` | String! | Account id of the Jira user |
+| `jiraDisplayName` | String! | Display name of the Jira user |
+| `jiraEmail` | String | Email of the Jira user, returned only for users with public emails |
+
 ## Label
 
 | Name  | Type  | Description |

spec/requests/api/graphql/mutations/jira_import/import_users_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'Importing Jira Users' do
+  include JiraServiceHelper
+  include GraphqlHelpers
+
+  let_it_be(:user)    { create(:user) }
+  let_it_be(:project) { create(:project) }
+  let(:project_path)  { project.full_path }
+  let(:start_at)      { 7 }
+
+  let(:mutation) do
+    variables = {
+      start_at: start_at,
+      project_path: project_path
+    }
+
+    graphql_mutation(:jira_import_users, variables)
+  end
+
+  def mutation_response
+    graphql_mutation_response(:jira_import_users)
+  end
+
+  def jira_import
+    mutation_response['jiraUsers']
+  end
+
+  context 'with anonymous user' do
+    let(:current_user) { nil }
+
+    it_behaves_like 'a mutation that returns top-level errors',
+                    errors: [Gitlab::Graphql::Authorize::AuthorizeResource::RESOURCE_ACCESS_ERROR]
+  end
+
+  context 'with user without permissions' do
+    let(:current_user) { user }
+
+    before do
+      project.add_developer(current_user)
+    end
+
+    it_behaves_like 'a mutation that returns top-level errors',
+                    errors: [Gitlab::Graphql::Authorize::AuthorizeResource::RESOURCE_ACCESS_ERROR]
+  end
+
+  context 'when the user has permissions' do
+    let(:current_user) { user }
+
+    before do
+      project.add_maintainer(current_user)
+    end
+
+    context 'when the project path is invalid' do
+      let(:project_path) { 'foobar' }
+
+      it 'returns an an error' do
+        post_graphql_mutation(mutation, current_user: current_user)
+
+        errors = json_response['errors']
+
+        expect(errors.first['message']).to eq(Gitlab::Graphql::Authorize::AuthorizeResource::RESOURCE_ACCESS_ERROR)
+      end
+    end
+
+    context 'when all params and permissions are ok' do
+      let(:importer) { instance_double(JiraImport::UsersImporter) }
+
+      before do
+        expect(JiraImport::UsersImporter).to receive(:new).with(current_user, project, 7)
+          .and_return(importer)
+      end
+
+      context 'when service returns a successful response' do
+        it 'returns imported users' do
+          users = [{ jira_account_id: '12a', jira_display_name: 'user 1' }]
+          result = ServiceResponse.success(payload: users)
+
+          expect(importer).to receive(:execute).and_return(result)
+
+          post_graphql_mutation(mutation, current_user: current_user)
+
+          expect(jira_import.length).to eq(1)
+          expect(jira_import.first['jiraAccountId']).to eq('12a')
+          expect(jira_import.first['jiraDisplayName']).to eq('user 1')
+        end
+      end
+
+      context 'when service returns an error response' do
+        it 'returns an error messaege' do
+          result = ServiceResponse.error(message: 'Some error')
+
+          expect(importer).to receive(:execute).and_return(result)
+
+          post_graphql_mutation(mutation, current_user: current_user)
+
+          expect(mutation_response['errors']).to eq(['Some error'])
+        end
+      end
+    end
+  end
+end

spec/services/jira_import/users_importer_spec.rb

@@ -20,8 +20,8 @@ describe JiraImport::UsersImporter do
     end
 
     context 'when Jira import is not configured properly' do
-      it 'raises an error' do
-        expect { subject }.to raise_error(Projects::ImportService::Error)
+      it 'returns an error' do
+        expect(subject.errors).to eq(['Jira integration not configured.'])
       end
     end
 

spec/services/service_response_spec.rb

@@ -84,4 +84,14 @@ describe ServiceResponse do
       expect(described_class.error(message: 'Bad apple').error?).to eq(true)
     end
   end
+
+  describe '#errors' do
+    it 'returns an empty array for a successful response' do
+      expect(described_class.success.errors).to be_empty
+    end
+
+    it 'returns an array with a correct message for an error response' do
+      expect(described_class.error(message: 'error message').errors).to eq(['error message'])
+    end
+  end
 end