refactor(helcim): use helper in subscription endpoint

server/api/helcim/subscription.post.js

@@ -1,11 +1,10 @@
 // Create a Helcim subscription
-import { getHelcimPlanId, requiresPayment } from '../../config/contributions.js'
+import { getHelcimPlanId, requiresPayment, getContributionTierByValue } from '../../config/contributions.js'
 import Member from '../../models/member.js'
 import { connectDB } from '../../utils/mongoose.js'
 import { getSlackService } from '../../utils/slack.ts'
 import { requireAuth } from '../../utils/auth.js'
-
+import { createHelcimSubscription, generateIdempotencyKey } from '../../utils/helcim.js'
-const HELCIM_API_BASE = 'https://api.helcim.com/v2'
 
 // Function to invite member to Slack
 async function inviteToSlack(member) {
@@ -75,7 +74,6 @@ export default defineEventHandler(async (event) => {
   try {
     await requireAuth(event)
     await connectDB()
-    const config = useRuntimeConfig(event)
     const body = await validateBody(event, helcimSubscriptionSchema)
 
     // Check if payment is required
@@ -159,91 +157,21 @@ export default defineEventHandler(async (event) => {
     }
 
     // Try to create subscription in Helcim
-    const helcimToken = config.helcimApiToken
+    const idempotencyKey = generateIdempotencyKey()
-    
-    // Generate a proper alphanumeric idempotency key (exactly 25 characters)
-    const chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
-    let idempotencyKey = ''
-    for (let i = 0; i < 25; i++) {
-      idempotencyKey += chars.charAt(Math.floor(Math.random() * chars.length))
-    }
 
     // Get contribution tier details to set recurring amount
-    const { getContributionTierByValue } = await import('../../config/contributions.js')
     const tierInfo = getContributionTierByValue(body.contributionTier)
 
-    const requestBody = {
+    const subscriptionPayload = {
-      subscriptions: [{
+      dateActivated: new Date().toISOString().split('T')[0], // Today in YYYY-MM-DD format
-        dateActivated: new Date().toISOString().split('T')[0], // Today in YYYY-MM-DD format
+      paymentPlanId: parseInt(planId),
-        paymentPlanId: parseInt(planId),
+      customerCode: body.customerCode,
-        customerCode: body.customerCode,
+      recurringAmount: parseFloat(tierInfo.amount),
-        recurringAmount: parseFloat(tierInfo.amount),
+      paymentMethod: 'card'
-        paymentMethod: 'card'
-      }]
-    }
-    const requestHeaders = {
-      'accept': 'application/json',
-      'content-type': 'application/json',
-      'api-token': helcimToken,
-      'idempotency-key': idempotencyKey
     }
 
     try {
-      const subscriptionResponse = await fetch(`${HELCIM_API_BASE}/subscriptions`, {
+      const subscriptionData = await createHelcimSubscription(subscriptionPayload, idempotencyKey)
-        method: 'POST',
-        headers: requestHeaders,
-        body: JSON.stringify(requestBody)
-      })
-      
-      if (!subscriptionResponse.ok) {
-        const errorText = await subscriptionResponse.text()
-        console.error('Subscription creation failed:', subscriptionResponse.status)
-        
-        // If it's a validation error, let's try to get more info about available plans
-        if (subscriptionResponse.status === 400 || subscriptionResponse.status === 404) {
-          // Plan might not exist -- update member status and proceed
-          const member = await Member.findOneAndUpdate(
-            { helcimCustomerId: body.customerId },
-            { 
-              status: 'active',
-              contributionTier: body.contributionTier,
-              subscriptionStartDate: new Date(),
-              paymentMethod: 'card',
-              cardToken: body.cardToken,
-              notes: `Payment successful but subscription creation failed: ${errorText}`
-            },
-            { new: true }
-          )
-
-          // Send Slack invitation even when subscription setup fails
-          await inviteToSlack(member)
-
-          return {
-            success: true,
-            subscription: {
-              subscriptionId: 'manual-' + Date.now(),
-              status: 'needs_setup',
-              nextBillingDate: new Date(Date.now() + 30 * 24 * 60 * 60 * 1000)
-            },
-            member: {
-              id: member._id,
-              email: member.email,
-              name: member.name,
-              circle: member.circle,
-              contributionTier: member.contributionTier,
-              status: member.status
-            },
-            warning: 'Payment successful but recurring subscription needs manual setup'
-          }
-        }
-        
-        throw createError({
-          statusCode: subscriptionResponse.status,
-          statusMessage: 'Subscription creation failed'
-        })
-      }
-      
-      const subscriptionData = await subscriptionResponse.json()
 
       // Extract the first subscription from the response array
       const subscription = subscriptionData.data?.[0]
@@ -285,8 +213,14 @@ export default defineEventHandler(async (event) => {
           status: member.status
         }
       }
-    } catch (fetchError) {
+    } catch (helcimError) {
-      console.error('Error during subscription creation:', fetchError)
+      // The helper throws createError on non-OK responses (statusCode = upstream HTTP status)
+      // and lets network errors propagate. We treat 400/404 from upstream AND any network
+      // error as the "manual setup needed" fallback. Re-throw other upstream errors (e.g. 5xx).
+      if (helcimError.statusCode && helcimError.statusCode !== 400 && helcimError.statusCode !== 404) {
+        throw helcimError
+      }
+      console.error('Error during subscription creation:', helcimError)
 
       // Still mark member as active since payment was successful
       const member = await Member.findOneAndUpdate(
@@ -297,12 +231,12 @@ export default defineEventHandler(async (event) => {
           subscriptionStartDate: new Date(),
           paymentMethod: 'card',
           cardToken: body.cardToken,
-          notes: `Payment successful but subscription creation failed: ${fetchError.message}`
+          notes: `Payment successful but subscription creation failed: ${helcimError.message || 'unknown error'}`
         },
         { new: true }
       )
 
-      // Send Slack invitation even when subscription fetch fails
+      // Send Slack invitation even when subscription setup fails
       await inviteToSlack(member)
 
       return {