1 files changed, 19 insertions, 2 deletions
diff --git a/model/job/index.ts b/model/job/index.ts
index b7fb3b0..2eea9cf 100644
--- a/model/job/index.ts
+++ b/model/job/index.ts
@@ -1,11 +1,28 @@
 import { isObject } from '@emprespresso/pengueno';
 
 export type JobArgT = Record<string, string>;
+export type JobType = 'fetch_code' | 'build_docker_image.js' | 'ansible_playbook.js' | 'checkout_ci.js';
+export const JobTypes: Array<JobType> = [
+    'fetch_code',
+    'build_docker_image.js',
+    'ansible_playbook.js',
+    'checkout_ci.js',
+];
 export interface Job {
-    readonly type: string;
+    readonly type: JobType;
     readonly arguments: JobArgT;
 }
+
+export const isJobType = (j: unknown): j is JobType => typeof j === 'string' && JobTypes.includes(<JobType>j);
+
 export const isJob = (j: unknown): j is Job =>
-    !!(isObject(j) && 'arguments' in j && isObject(j.arguments) && 'type' in j && typeof j.type === 'string' && j);
+    !!(
+        isObject(j) &&
+        'arguments' in j &&
+        isObject(j.arguments) &&
+        'type' in j &&
+        isJobType(j.type) &&
+        j
+    );
 
 export * from './jobs.js';