feat: Implement import flow API endpoint

packages/backend/src/helpers/authorization.js

@@ -117,6 +117,10 @@ const authorizationList = {
     action: 'update',
     subject: 'Flow',
   },
+  'POST /api/v1/flows/import': {
+    action: 'create',
+    subject: 'Flow',
+  },
   'POST /api/v1/flows/:flowId/steps': {
     action: 'update',
     subject: 'Flow',

packages/backend/src/helpers/import-flow.js

@@ -0,0 +1,62 @@
+import Crypto from 'crypto';
+import Step from '../models/step.js';
+
+const importFlow = async (user, flowData) => {
+  const newFlowId = Crypto.randomUUID();
+  const steps = flowData.steps || [];
+
+  const newFlow = await user.$relatedQuery('flows').insertAndFetch({
+    id: newFlowId,
+    name: flowData.name,
+    active: false,
+  });
+
+  const stepIdMap = {};
+
+  // Generate new step IDs and insert steps without parameters
+  for (const step of steps) {
+    const newStepId = Crypto.randomUUID();
+    stepIdMap[step.id] = newStepId;
+
+    await Step.query().insert({
+      id: newStepId,
+      flowId: newFlowId,
+      key: step.key,
+      name: step.name,
+      appKey: step.appKey,
+      type: step.type,
+      parameters: {},
+      position: step.position,
+      webhookPath: step.webhookPath?.replace(flowData.id, newFlowId),
+    });
+  }
+
+  // Update steps with correct parameters
+  for (const step of steps) {
+    const newStepId = stepIdMap[step.id];
+
+    await Step.query().patchAndFetchById(newStepId, {
+      parameters: updateParameters(step.parameters, stepIdMap),
+    });
+  }
+
+  return await newFlow.$query().withGraphFetched('steps');
+};
+
+const updateParameters = (parameters, stepIdMap) => {
+  if (!parameters) return parameters;
+
+  const stringifiedParameters = JSON.stringify(parameters);
+  let updatedParameters = stringifiedParameters;
+
+  Object.entries(stepIdMap).forEach(([oldStepId, newStepId]) => {
+    updatedParameters = updatedParameters.replace(
+      `{{step.${oldStepId}.`,
+      `{{step.${newStepId}.`
+    );
+  });
+
+  return JSON.parse(updatedParameters);
+};
+
+export default importFlow;