Add new dashboard backend

2025-01-13 00:14:15 -05:00
parent 024155d054
commit 88c51059bb
14 changed files with 1085 additions and 727 deletions
--- a/inventory-server/src/routes/metrics.js
+++ b/inventory-server/src/routes/metrics.js
@@ -0,0 +1,60 @@
+const express = require('express');
+const router = express.Router();
+
+// Get key metrics trends (revenue, inventory value, GMROI)
+router.get('/trends', async (req, res) => {
+  const pool = req.app.locals.pool;
+  try {
+    const [rows] = await pool.query(`
+      WITH MonthlyMetrics AS (
+        SELECT 
+          DATE(CONCAT(pta.year, '-', LPAD(pta.month, 2, '0'), '-01')) as date,
+          SUM(pta.total_revenue) as revenue,
+          SUM(pta.total_cost) as cost,
+          SUM(pm.inventory_value) as inventory_value,
+          CASE 
+            WHEN SUM(pm.inventory_value) > 0 
+            THEN (SUM(pta.total_revenue - pta.total_cost) / SUM(pm.inventory_value)) * 100
+            ELSE 0 
+          END as gmroi
+        FROM product_time_aggregates pta
+        JOIN product_metrics pm ON pta.product_id = pm.product_id
+        WHERE (pta.year * 100 + pta.month) >= DATE_FORMAT(DATE_SUB(CURDATE(), INTERVAL 12 MONTH), '%Y%m')
+        GROUP BY pta.year, pta.month
+        ORDER BY date ASC
+      )
+      SELECT 
+        DATE_FORMAT(date, '%b %y') as date,
+        ROUND(revenue, 2) as revenue,
+        ROUND(inventory_value, 2) as inventory_value,
+        ROUND(gmroi, 2) as gmroi
+      FROM MonthlyMetrics
+    `);
+
+    console.log('Raw metrics trends data:', rows);
+
+    // Transform the data into the format expected by the frontend
+    const transformedData = {
+      revenue: rows.map(row => ({
+        date: row.date,
+        value: parseFloat(row.revenue || 0)
+      })),
+      inventory_value: rows.map(row => ({
+        date: row.date,
+        value: parseFloat(row.inventory_value || 0)
+      })),
+      gmroi: rows.map(row => ({
+        date: row.date,
+        value: parseFloat(row.gmroi || 0)
+      }))
+    };
+
+    console.log('Transformed metrics data:', transformedData);
+    res.json(transformedData);
+  } catch (error) {
+    console.error('Error fetching metrics trends:', error);
+    res.status(500).json({ error: 'Failed to fetch metrics trends' });
+  }
+});
+
+module.exports = router;