chore: upload parte 1 - logica

app/api/planning-history/route.ts

@@ -0,0 +1,27 @@
+import { NextResponse } from "next/server";
+import { getDb } from "@/lib/db";
+
+export async function GET() {
+  try {
+    const sql = getDb();
+    const rows = await sql(
+      `SELECT ph.*,
+        COUNT(phi.id) AS item_count,
+        COALESCE(SUM(phi.quantity_needed), 0) AS total_quantity,
+        COUNT(CASE WHEN phi.shortage > 0 THEN 1 END) AS shortage_count,
+        (SELECT string_agg(DISTINCT sp.po_number, ', ' ORDER BY sp.po_number) 
+         FROM supplier_pos sp WHERE sp.planning_id = ph.id) AS linked_po_numbers
+       FROM planning_history ph
+       LEFT JOIN planning_history_items phi ON phi.planning_id = ph.id
+       GROUP BY ph.id
+       ORDER BY ph.created_at DESC`
+    );
+    return NextResponse.json(rows);
+  } catch (error) {
+    console.error("Error fetching planning history:", error);
+    return NextResponse.json(
+      { error: "Failed to fetch planning history" },
+      { status: 500 }
+    );
+  }
+}