Initial commit - QR Master application

src/app/api/analytics/summary/route.ts

@@ -0,0 +1,110 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { cookies } from 'next/headers';
+import { db } from '@/lib/db';
+
+export async function GET(request: NextRequest) {
+  try {
+    const userId = cookies().get('userId')?.value;
+    if (!userId) {
+      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
+    }
+
+    // Get user's QR codes
+    const qrCodes = await db.qRCode.findMany({
+      where: { userId },
+      include: {
+        scans: true,
+      },
+    });
+
+    // Calculate stats
+    const totalScans = qrCodes.reduce((sum, qr) => sum + qr.scans.length, 0);
+    const uniqueScans = qrCodes.reduce((sum, qr) => 
+      sum + qr.scans.filter(s => s.isUnique).length, 0
+    );
+    
+    // Device stats
+    const deviceStats = qrCodes.flatMap(qr => qr.scans)
+      .reduce((acc, scan) => {
+        const device = scan.device || 'unknown';
+        acc[device] = (acc[device] || 0) + 1;
+        return acc;
+      }, {} as Record<string, number>);
+    
+    const mobileScans = (deviceStats.mobile || 0) + (deviceStats.tablet || 0);
+    const mobilePercentage = totalScans > 0 
+      ? Math.round((mobileScans / totalScans) * 100) 
+      : 0;
+    
+    // Country stats
+    const countryStats = qrCodes.flatMap(qr => qr.scans)
+      .reduce((acc, scan) => {
+        const country = scan.country || 'Unknown';
+        acc[country] = (acc[country] || 0) + 1;
+        return acc;
+      }, {} as Record<string, number>);
+    
+    const topCountry = Object.entries(countryStats)
+      .sort(([,a], [,b]) => b - a)[0];
+    
+    // Time-based stats (last 30 days)
+    const thirtyDaysAgo = new Date();
+    thirtyDaysAgo.setDate(thirtyDaysAgo.getDate() - 30);
+    
+    const recentScans = qrCodes.flatMap(qr => qr.scans)
+      .filter(scan => new Date(scan.ts) > thirtyDaysAgo);
+    
+    // Daily scan counts for chart
+    const dailyScans = recentScans.reduce((acc, scan) => {
+      const date = new Date(scan.ts).toISOString().split('T')[0];
+      acc[date] = (acc[date] || 0) + 1;
+      return acc;
+    }, {} as Record<string, number>);
+    
+    // QR performance
+    const qrPerformance = qrCodes.map(qr => ({
+      id: qr.id,
+      title: qr.title,
+      type: qr.type,
+      totalScans: qr.scans.length,
+      uniqueScans: qr.scans.filter(s => s.isUnique).length,
+      conversion: qr.scans.length > 0 
+        ? Math.round((qr.scans.filter(s => s.isUnique).length / qr.scans.length) * 100)
+        : 0,
+    })).sort((a, b) => b.totalScans - a.totalScans);
+
+    return NextResponse.json({
+      summary: {
+        totalScans,
+        uniqueScans,
+        avgScansPerQR: qrCodes.length > 0 
+          ? Math.round(totalScans / qrCodes.length) 
+          : 0,
+        mobilePercentage,
+        topCountry: topCountry ? topCountry[0] : 'N/A',
+        topCountryPercentage: topCountry && totalScans > 0
+          ? Math.round((topCountry[1] / totalScans) * 100)
+          : 0,
+      },
+      deviceStats,
+      countryStats: Object.entries(countryStats)
+        .sort(([,a], [,b]) => b - a)
+        .slice(0, 10)
+        .map(([country, count]) => ({
+          country,
+          count,
+          percentage: totalScans > 0 
+            ? Math.round((count / totalScans) * 100) 
+            : 0,
+        })),
+      dailyScans,
+      qrPerformance: qrPerformance.slice(0, 10),
+    });
+  } catch (error) {
+    console.error('Error fetching analytics:', error);
+    return NextResponse.json(
+      { error: 'Internal server error' },
+      { status: 500 }
+    );
+  }
+}