Add campaigns component and services

dashboard-server/klaviyo-server/routes/campaigns.routes.js

@@ -0,0 +1,71 @@
+import express from 'express';
+import { CampaignsService } from '../services/campaigns.service.js';
+import { TimeManager } from '../utils/time.utils.js';
+
+export function createCampaignsRouter(apiKey, apiRevision) {
+  const router = express.Router();
+  const timeManager = new TimeManager();
+  const campaignsService = new CampaignsService(apiKey, apiRevision);
+
+  // Get campaigns with optional filtering
+  router.get('/', async (req, res) => {
+    try {
+      const params = {
+        pageSize: parseInt(req.query.pageSize) || 50,
+        sort: req.query.sort || '-send_time',
+        status: req.query.status,
+        startDate: req.query.startDate,
+        endDate: req.query.endDate,
+        pageCursor: req.query.pageCursor
+      };
+
+      console.log('[Campaigns Route] Fetching campaigns with params:', params);
+      const data = await campaignsService.getCampaigns(params);
+      console.log('[Campaigns Route] Success:', {
+        count: data.data?.length || 0
+      });
+      res.json(data);
+    } catch (error) {
+      console.error('[Campaigns Route] Error:', error);
+      res.status(500).json({ 
+        status: 'error', 
+        message: error.message,
+        details: error.response?.data || null
+      });
+    }
+  });
+
+  // Get campaigns by time range
+  router.get('/:timeRange', async (req, res) => {
+    try {
+      const { timeRange } = req.params;
+      const { status } = req.query;
+
+      let result;
+      if (timeRange === 'custom') {
+        const { startDate, endDate } = req.query;
+        if (!startDate || !endDate) {
+          return res.status(400).json({ error: 'Custom range requires startDate and endDate' });
+        }
+
+        result = await campaignsService.getCampaigns({
+          startDate,
+          endDate,
+          status
+        });
+      } else {
+        result = await campaignsService.getCampaignsByTimeRange(
+          timeRange,
+          { status }
+        );
+      }
+
+      res.json(result);
+    } catch (error) {
+      console.error("[Campaigns Route] Error:", error);
+      res.status(500).json({ error: error.message });
+    }
+  });
+
+  return router;
+}