Change Database

app/api/mahasiswa/asal-daerah-angkatan/route.ts

@@ -1,8 +1,7 @@
 import { NextResponse } from 'next/server';
-import pool from '@/lib/db';
-import { RowDataPacket } from 'mysql2';
+import supabase from '@/lib/db';
 
-interface AsalDaerah extends RowDataPacket {
+interface AsalDaerah {
   kabupaten: string;
   jumlah: number;
 }
@@ -18,18 +17,46 @@ export async function GET(request: Request) {
     );
   }
 
-  const connection = await pool.getConnection();
-  
   try {
-    const query = `
-      SELECT kabupaten, COUNT(*) AS jumlah
-      FROM mahasiswa
-      WHERE tahun_angkatan = ?
-      GROUP BY kabupaten
-      ORDER BY jumlah DESC, kabupaten ASC
-    `;
+    const { data, error } = await supabase
+      .from('mahasiswa')
+      .select('kabupaten')
+      .eq('tahun_angkatan', parseInt(tahunAngkatan));
 
-    const [results] = await connection.query<AsalDaerah[]>(query, [tahunAngkatan]);
+    if (error) {
+      console.error('Error fetching asal daerah per angkatan:', error);
+      return NextResponse.json(
+        { error: 'Failed to fetch asal daerah data' },
+        { 
+          status: 500,
+          headers: {
+            'Access-Control-Allow-Origin': '*',
+            'Access-Control-Allow-Methods': 'GET, OPTIONS',
+            'Access-Control-Allow-Headers': 'Content-Type, Authorization',
+          },
+        }
+      );
+    }
+
+    // Group by kabupaten and count
+    const groupedData = data.reduce((acc, item) => {
+      acc[item.kabupaten] = (acc[item.kabupaten] || 0) + 1;
+      return acc;
+    }, {} as Record<string, number>);
+
+    // Convert to final format and sort
+    const results: AsalDaerah[] = Object.entries(groupedData)
+      .map(([kabupaten, jumlah]) => ({
+        kabupaten,
+        jumlah
+      }))
+      .sort((a, b) => {
+        // Sort by jumlah DESC, then by kabupaten ASC
+        if (a.jumlah !== b.jumlah) {
+          return b.jumlah - a.jumlah;
+        }
+        return a.kabupaten.localeCompare(b.kabupaten);
+      });
 
     return NextResponse.json(results, {
       headers: {
@@ -52,7 +79,5 @@ export async function GET(request: Request) {
         },
       }
     );
-  } finally {
-    connection.release();
   }
 }