feat: Implement auto-run interval for triggers of completed flows

packages/backend/src/graphql/mutations/execute-flow.ts

@@ -14,7 +14,7 @@ const executeFlow = async (
   params: Params,
   context: Context
 ) => {
-  const step = await context.currentUser
+  const untilStep = await context.currentUser
     .$relatedQuery('steps')
     .withGraphFetched('connection')
     .findOne({
@@ -22,20 +22,18 @@ const executeFlow = async (
     })
     .throwIfNotFound();
 
-  const flow = await step.$relatedQuery('flow');
-  const data = await new Processor(flow, step, { testRun: true }).run();
+  const flow = await untilStep.$relatedQuery('flow');
 
-  // TODO: Use this snippet to execute flows with the background job.
-  // const data = processorQueue.add('processorJob', {
-  //   flowId: flow.id,
-  //   stepId: step.id,
-  // });
+  const data = await new Processor(flow, {
+    untilStep,
+    testRun: true,
+  }).run();
 
-  await step.$query().patch({
+  await untilStep.$query().patch({
     status: 'completed',
   });
 
-  return { data, step };
+  return { data, step: untilStep };
 };
 
 export default executeFlow;

packages/backend/src/graphql/mutations/update-flow-status.ts

@@ -1,4 +1,5 @@
 import Context from '../../types/express/context';
+import processorQueue from '../../queues/processor';
 
 type Params = {
   input: {
@@ -7,6 +8,11 @@ type Params = {
   };
 };
 
+const JOB_NAME = 'processorJob';
+const REPEAT_OPTIONS = {
+  every: 60000, // 1 minute
+};
+
 const updateFlowStatus = async (
   _parent: unknown,
   params: Params,
@@ -23,10 +29,23 @@ const updateFlowStatus = async (
     return flow;
   }
 
-  flow = await flow.$query().patchAndFetch({
+  flow = await flow.$query().withGraphFetched('steps').patchAndFetch({
     active: params.input.active,
   });
 
+  if (flow.active) {
+    await processorQueue.add(
+      JOB_NAME,
+      { flowId: flow.id },
+      {
+        repeat: REPEAT_OPTIONS,
+        jobId: flow.id,
+      }
+    );
+  } else {
+    await processorQueue.removeRepeatable(JOB_NAME, REPEAT_OPTIONS, flow.id);
+  }
+
   return flow;
 };
 

packages/backend/src/graphql/queries/get-flows.ts

@@ -7,7 +7,8 @@ const getFlows = async (
 ) => {
   const flows = await context.currentUser
     .$relatedQuery('flows')
-    .withGraphJoined('[steps.[connection]]');
+    .withGraphJoined('[steps.[connection]]')
+    .orderBy('created_at', 'desc');
 
   return flows;
 };