added admin page

src/donors.js

@@ -4,7 +4,13 @@ import {
   orderBy,
   onSnapshot,
   addDoc,
+  getDocs,
+  doc,
+  updateDoc,
+  deleteDoc,
+  writeBatch,
   serverTimestamp,
+  Timestamp,
 } from 'firebase/firestore';
 import { db } from './firebase.js';
 
@@ -45,6 +51,62 @@ export function calculateTotal(donors) {
   return donors.reduce((sum, d) => sum + (d.amount || 0), 0);
 }
 
+// ===== Admin Operations =====
+
+export async function getDonors() {
+  const q = query(donorsRef, orderBy('date', 'desc'));
+  const snapshot = await getDocs(q);
+  const donors = [];
+  snapshot.forEach((d) => donors.push({ id: d.id, ...d.data() }));
+  return donors;
+}
+
+export async function addDonorWithDate({ name, amount, classYear, message, anonymous, date }) {
+  const dateValue = date ? Timestamp.fromDate(new Date(date)) : serverTimestamp();
+  return addDoc(donorsRef, {
+    name: anonymous ? 'Anonymous' : name,
+    amount: Number(amount),
+    classYear: classYear || '',
+    message: message || '',
+    anonymous: !!anonymous,
+    date: dateValue,
+  });
+}
+
+export async function updateDonor(id, fields) {
+  return updateDoc(doc(db, 'donors', id), fields);
+}
+
+export async function deleteDonor(id) {
+  return deleteDoc(doc(db, 'donors', id));
+}
+
+export async function addDonorsBatch(donorsArray) {
+  const chunks = [];
+  for (let i = 0; i < donorsArray.length; i += 500) {
+    chunks.push(donorsArray.slice(i, i + 500));
+  }
+  let imported = 0;
+  for (const chunk of chunks) {
+    const batch = writeBatch(db);
+    for (const d of chunk) {
+      const ref = doc(collection(db, 'donors'));
+      const dateValue = d.date ? Timestamp.fromDate(new Date(d.date)) : serverTimestamp();
+      batch.set(ref, {
+        name: d.anonymous ? 'Anonymous' : (d.name || 'Anonymous'),
+        amount: Number(d.amount) || 0,
+        classYear: d.classYear || '',
+        message: d.message || '',
+        anonymous: !!d.anonymous,
+        date: dateValue,
+      });
+    }
+    await batch.commit();
+    imported += chunk.length;
+  }
+  return imported;
+}
+
 export function sortDonors(donors, sortBy) {
   const sorted = [...donors];
   if (sortBy === 'amount') {