From ea5ca628c86c37a76bf9707583541abb4648b30a Mon Sep 17 00:00:00 2001
From: Ian Gulliver <github@flamingcow.io>
Date: Sat, 17 Jan 2026 08:10:56 -0700
Subject: [PATCH] Add /api/donate endpoint for anonymous donations

---
 main.go                 | 45 +++++++++++++++++++++++++++++++++++------
 static/give/afac26.html |  9 +++------
 2 files changed, 42 insertions(+), 12 deletions(-)

diff --git a/main.go b/main.go
index 7ee4ca0..2698cab 100644
--- a/main.go
+++ b/main.go
@@ -113,6 +113,7 @@ func main() {
 	http.HandleFunc("POST /auth/google/callback", handleGoogleCallback)
 	http.HandleFunc("GET /api/rsvp/{eventID}", handleRSVPGet)
 	http.HandleFunc("POST /api/rsvp/{eventID}", handleRSVPPost)
+	http.HandleFunc("POST /api/donate/{eventID}", handleDonate)
 	http.HandleFunc("GET /api/donate/success/{eventID}", handleDonateSuccess)
 	http.HandleFunc("POST /api/stripe/webhook", handleStripeWebhook)
 	http.HandleFunc("GET /api/report", handleReport)
@@ -322,14 +323,37 @@ func handleRSVPPost(w http.ResponseWriter, r *http.Request) {
 	json.NewEncoder(w).Encode(resp)
 }
 
+func handleDonate(w http.ResponseWriter, r *http.Request) {
+	eventID := r.PathValue("eventID")
+
+	var req struct {
+		DonationCents int64 `json:"donationCents"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		http.Error(w, "invalid json", http.StatusBadRequest)
+		return
+	}
+
+	if req.DonationCents <= 0 {
+		http.Error(w, "donation amount required", http.StatusBadRequest)
+		return
+	}
+
+	stripeURL, err := createCheckoutSession(eventID, "", req.DonationCents, 0)
+	if err != nil {
+		log.Println("[ERROR] failed to create checkout session:", err)
+		http.Error(w, "failed to create checkout session", http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(map[string]any{"url": stripeURL})
+}
+
 func createCheckoutSession(eventID, email string, amountCents int64, numPeople int) (string, error) {
 	baseURL := os.Getenv("BASE_URL")
 	params := &stripe.CheckoutSessionParams{
-		CustomerEmail: stripe.String(email),
-		Mode:          stripe.String(string(stripe.CheckoutSessionModePayment)),
-		PaymentIntentData: &stripe.CheckoutSessionPaymentIntentDataParams{
-			ReceiptEmail: stripe.String(email),
-		},
+		Mode: stripe.String(string(stripe.CheckoutSessionModePayment)),
 		LineItems: []*stripe.CheckoutSessionLineItemParams{
 			{
 				PriceData: &stripe.CheckoutSessionLineItemPriceDataParams{
@@ -346,10 +370,16 @@ func createCheckoutSession(eventID, email string, amountCents int64, numPeople i
 		CancelURL:  stripe.String(fmt.Sprintf("%s/%s", baseURL, eventID)),
 		Metadata: map[string]string{
 			"event_id":   eventID,
-			"email":      email,
 			"num_people": fmt.Sprintf("%d", numPeople),
 		},
 	}
+	if email != "" {
+		params.CustomerEmail = stripe.String(email)
+		params.PaymentIntentData = &stripe.CheckoutSessionPaymentIntentDataParams{
+			ReceiptEmail: stripe.String(email),
+		}
+		params.Metadata["email"] = email
+	}
 
 	s, err := session.New(params)
 	if err != nil {
@@ -365,6 +395,9 @@ func processPayment(sess *stripe.CheckoutSession) error {
 
 	eventID := sess.Metadata["event_id"]
 	email := sess.Metadata["email"]
+	if email == "" && sess.CustomerDetails != nil {
+		email = sess.CustomerDetails.Email
+	}
 	amount := float64(sess.AmountTotal) / 100
 
 	tx, err := db.Begin()
diff --git a/static/give/afac26.html b/static/give/afac26.html
index e3d9604..b91039a 100644
--- a/static/give/afac26.html
+++ b/static/give/afac26.html
@@ -117,9 +117,6 @@
         <wa-card>
             <div class="event-header">
                 <img src="/afac26-logo.png" alt="Applause for a Cause">
-                <p>Saturday, February 7, 2026 · 6:30 PM</p>
-                <p>Helios Gym</p>
-                <p>597 Central Avenue, Sunnyvale, CA 94086</p>
             </div>
             <div class="info-box">
                 <p style="margin: 0;">All donations go to <a href="https://svcommunityservices.org/" target="_blank">Sunnyvale Community Services</a>. Thank you for your generosity!</p>
@@ -127,10 +124,10 @@
             <div class="donation-section">
                 <div style="font-weight: bold; margin-bottom: 1rem;">Select a donation amount:</div>
                 <div class="button-group donation-group" id="donation-group">
-                    <wa-button variant="neutral" class="selected" data-value="25">$25</wa-button>
+                    <wa-button variant="neutral" class="selected" data-value="10">$10</wa-button>
+                    <wa-button variant="neutral" data-value="25">$25</wa-button>
                     <wa-button variant="neutral" data-value="50">$50</wa-button>
                     <wa-button variant="neutral" data-value="custom"><span>Other</span><wa-input type="number" size="small" id="custom-amount" min="1" value="100"><span slot="start">$</span></wa-input></wa-button>
-                    <wa-button variant="neutral" data-value="100">$100</wa-button>
                 </div>
                 <div style="text-align: center; margin-top: 1.5rem;">
                     <wa-button variant="brand" id="donate-btn">Donate</wa-button>
@@ -152,7 +149,7 @@
             history.replaceState({}, '', location.pathname);
         }
 
-        let selectedDonation = 25;
+        let selectedDonation = 10;
 
         function setupButtonGroup(groupId, onChange) {
             const group = document.getElementById(groupId);