Simplify self-service payments to full-amount checkout, add manual-page payment tab

Self-service "pay now" flows (registration success + user dashboard) now go
straight to a Yoco checkout for the full outstanding balance instead of
prompting for a partial amount; that page has been removed. Partial-amount
payment links remain supervisor/admin-only via the Payments dashboard.

Also adds a "Record Payment" tab to the supervisor manual registration page,
pre-filled with the most recently created registration, so staff can capture
a payment right after registering someone without leaving the page.

CHANGELOG.md

@@ -7,6 +7,18 @@ and this project follows [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+### Added
+
+- Supervisor dashboard: `/dashboard/supervisor/manual` now has a "Record Payment" tab (alongside "Register"), for capturing a payment without leaving the page. It pre-fills with the user and registration from the most recently created manual registration, but only switches tabs when a supervisor/admin clicks it themselves.
+
+### Changed
+
+- Self-service payments ("Pay with Yoco" after registering, and "Make payment" on the user dashboard) now go straight to a Yoco checkout for the full remaining outstanding balance, instead of first showing a page to choose a custom/partial amount. Generating a partial-amount payment link remains available only from the supervisor/admin Payments dashboard.
+
+### Removed
+
+- `/dashboard/user/pay` — the self-service partial-payment page — has been removed; it's no longer linked to from anywhere in the app.
+
 ## [1.1.0] - 2026-07-24
 
 ### Added

frontend/README.md

@@ -164,7 +164,6 @@ frontend/src/
 |-------|-------------|
 | `/dashboard/user` | My registrations + tickets overview |
 | `/dashboard/user/profile` | Edit profile, notification preferences |
-| `/dashboard/user/pay` | Pay outstanding balance |
 | `/dashboard/user/donate` | Make a donation |
 | `/dashboard/user/forms` | Complete registration forms |
 | `/dashboard/user/reset-password` | Change password (authenticated) |
@@ -255,7 +254,7 @@ A "Select Email/both" or "Select WhatsApp/both" quick-select button is available
 5. Backend reconciles payment, updates registration status, generates and emails tickets
 6. User sees `/payment/success` and tickets appear in their dashboard
 
-Outstanding balances can be paid at any time from `/dashboard/user/pay`.
+Outstanding balances can be paid at any time from the "Make payment" button on `/dashboard/user` — this always creates a checkout for the full remaining balance. Partial-amount payment links can only be generated by a supervisor/admin from `/dashboard/supervisor/payments`.
 
 ---
 

frontend/src/app/dashboard/supervisor/manual/page.tsx

@@ -39,6 +39,18 @@ function fmtPrice(n: number) {
   return n === 0 ? "Free" : `R ${n.toFixed(2)}`;
 }
 
+// Effective unit price for an existing registration option (as returned by /api/registrations).
+// Prefers priceSnapshot (authoritative price captured at registration time) and only falls
+// back to a live early-bird calculation for legacy rows without a snapshot.
+function optionUnitPrice(opt: any): number {
+  if (opt.priceSnapshot !== null && opt.priceSnapshot !== undefined) {
+    return Number(opt.priceSnapshot);
+  }
+  const eo = opt.eventOption;
+  if (opt.variant) return effectiveVariantUnit(eo, opt.variant);
+  return effectiveOptionUnit(eo);
+}
+
 // ─── Component ───────────────────────────────────────────────────────────────
 
 export default function ManualRegistrationPage() {
@@ -76,6 +88,23 @@ export default function ManualRegistrationPage() {
   const [message, setMessage] = useDismissingState<string | null>(null);
   const [error, setError] = useDismissingState<string | null>(null);
 
+  // ── Tabs ──────────────────────────────────────────────────────────────────
+  const [tab, setTab] = useState<"register" | "payment">("register");
+
+  // ── Record Payment tab state ─────────────────────────────────────────────
+  const [allRegistrations, setAllRegistrations] = useState<any[]>([]);
+  const [payUserId, setPayUserId] = useState<string>("");
+  const [payUserQuery, setPayUserQuery] = useState("");
+  const [payDropdownOpen, setPayDropdownOpen] = useState(false);
+  const paySearchRef = useRef<HTMLDivElement>(null);
+  const [payRegistrationId, setPayRegistrationId] = useState<string>("");
+  const [payAmount, setPayAmount] = useState<string>("");
+  const [payMethod, setPayMethod] = useState<string>("cash");
+  const [payPaidAtLocal, setPayPaidAtLocal] = useState<string>("");
+  const [paySubmitting, setPaySubmitting] = useState(false);
+  const [payMessage, setPayMessage] = useDismissingState<string | null>(null);
+  const [payError, setPayError] = useDismissingState<string | null>(null);
+
   // Load all users for client-side fuzzy matching
   useEffect(() => {
     if (!token) return;
@@ -84,6 +113,97 @@ export default function ManualRegistrationPage() {
       .catch(() => {});
   }, [token]);
 
+  // Load all registrations for the Record Payment tab (embeds payments, so outstanding
+  // balances can be computed without a per-registration fetch loop).
+  useEffect(() => {
+    if (!token) return;
+    apiFetch<any[]>("/api/registrations", { authToken: token })
+      .then(regs => setAllRegistrations(Array.isArray(regs) ? regs : []))
+      .catch(() => {});
+  }, [token]);
+
+  const regOutstanding = useMemo(() => {
+    const map: Record<string, { totalDue: number; totalPaid: number; outstanding: number }> = {};
+    for (const r of allRegistrations) {
+      const totalDue = (r.registrationOptions || []).reduce((sum: number, opt: any) => sum + optionUnitPrice(opt) * (opt.quantity || 0), 0);
+      const totalPaid = (r.payments || []).reduce((s: number, p: any) => s + (p.amount || 0), 0);
+      map[r.id] = { totalDue, totalPaid, outstanding: Math.max(0, totalDue - totalPaid) };
+    }
+    return map;
+  }, [allRegistrations]);
+
+  const payMatchedUsers = useMemo(() => {
+    if (payUserQuery.trim().length < 2) return [];
+    return allUsers
+      .map(u => ({ u, score: scoreUser(u, payUserQuery) }))
+      .filter(x => x.score >= 0.45)
+      .sort((a, b) => b.score - a.score)
+      .slice(0, 6)
+      .map(x => x.u);
+  }, [payUserQuery, allUsers]);
+
+  const selectPayUser = (u: any) => {
+    setPayUserId(u.id);
+    setPayUserQuery(u.name || "");
+    setPayDropdownOpen(false);
+    setPayRegistrationId("");
+  };
+
+  // Close payment-tab user dropdown on outside click
+  useEffect(() => {
+    const handler = (e: MouseEvent) => {
+      if (paySearchRef.current && !paySearchRef.current.contains(e.target as Node)) {
+        setPayDropdownOpen(false);
+      }
+    };
+    document.addEventListener("mousedown", handler);
+    return () => document.removeEventListener("mousedown", handler);
+  }, []);
+
+  const regsForPayUser = useMemo(() => {
+    if (!payUserId) return [];
+    return allRegistrations
+      .filter((r: any) => String(r.userId || r.user?.id) === String(payUserId))
+      .filter((r: any) => (regOutstanding[r.id]?.outstanding ?? 0) > 0.000001)
+      .sort((a: any, b: any) => new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime());
+  }, [allRegistrations, payUserId, regOutstanding]);
+
+  const createManualPayment = async () => {
+    if (!token) return;
+    setPayError(null);
+    setPayMessage(null);
+    const amt = parseFloat(payAmount || "0");
+    if (!amt || amt <= 0) { setPayError("Enter a valid amount"); return; }
+    if (!payRegistrationId) { setPayError("Please select a registration"); return; }
+    try {
+      setPaySubmitting(true);
+      await apiFetch<any>("/api/payments", {
+        method: "POST",
+        authToken: token,
+        body: {
+          amount: amt,
+          method: payMethod,
+          userId: payUserId || undefined,
+          registrationId: payRegistrationId,
+          isDonation: false,
+          paidAt: payPaidAtLocal ? new Date(payPaidAtLocal).toISOString() : undefined,
+        }
+      });
+      setPayMessage(`Payment recorded (R ${amt.toFixed(2)}).`);
+      setPayAmount("");
+      setPayPaidAtLocal("");
+      // Refresh registrations so the displayed outstanding balance updates
+      try {
+        const regs = await apiFetch<any[]>("/api/registrations", { authToken: token });
+        setAllRegistrations(Array.isArray(regs) ? regs : []);
+      } catch {}
+    } catch (e: any) {
+      setPayError(e?.message || "Failed to record payment");
+    } finally {
+      setPaySubmitting(false);
+    }
+  };
+
   // Fuzzy match results (top 6, score threshold 0.45)
   const matchedUsers = useMemo(() => {
     if (userQuery.trim().length < 2) return [];
@@ -193,6 +313,14 @@ export default function ManualRegistrationPage() {
       });
       setMessage("Manual registration created successfully.");
 
+      // Pre-load the Record Payment tab with this registration so it's ready to go the
+      // moment a supervisor clicks over — the tab itself is never switched to automatically.
+      setAllRegistrations(prev => [res, ...prev.filter((r: any) => r.id !== res.id)]);
+      setPayUserId(res.userId || res.user?.id || "");
+      setPayUserQuery(res.user?.name || guest.name || "");
+      setPayRegistrationId(res.id);
+      setPayDropdownOpen(false);
+
       // Reset guest/ticket fields so the next registration starts from a clean slate
       setGuest({ name: "", email: "", phoneNumber: "" });
       setRegisterAsGuest(false);
@@ -220,6 +348,19 @@ export default function ManualRegistrationPage() {
         </div>
       )}
 
+      <div className="mb-4 flex items-center gap-2">
+        <label className={`px-3 py-1.5 text-sm rounded border ${tab === 'register' ? 'bg-indigo-600 text-white border-indigo-600' : 'bg-white text-gray-800 border-gray-200'} cursor-pointer`}>
+          <input type="radio" name="tab" value="register" className="hidden" checked={tab==='register'} onChange={() => setTab('register')} />
+          Register
+        </label>
+        <label className={`px-3 py-1.5 text-sm rounded border ${tab === 'payment' ? 'bg-indigo-600 text-white border-indigo-600' : 'bg-white text-gray-800 border-gray-200'} cursor-pointer`}>
+          <input type="radio" name="tab" value="payment" className="hidden" checked={tab==='payment'} onChange={() => setTab('payment')} />
+          Record Payment
+        </label>
+      </div>
+
+      {tab === 'register' && (
+      <>
       {message && <div className="p-3 mb-3 border rounded bg-emerald-50 text-emerald-800 text-sm">{message}</div>}
       {error && <div className="p-3 mb-3 border rounded bg-red-50 text-red-700 text-sm">{error}</div>}
 
@@ -447,6 +588,92 @@ export default function ManualRegistrationPage() {
         <div className="text-sm">Total due: <span className="font-semibold">R {totalDue.toFixed(2)}</span></div>
         <button disabled={submitting} onClick={submit} className="px-4 py-2 text-sm rounded bg-indigo-600 text-white hover:bg-indigo-700 disabled:opacity-50 shadow-sm">{submitting ? 'Creating…' : 'Create registration'}</button>
       </div>
+      </>
+      )}
+
+      {tab === 'payment' && (
+      <div className="max-w-xl">
+        {payMessage && <div className="p-3 mb-3 border rounded bg-emerald-50 text-emerald-800 text-sm">{payMessage}</div>}
+        {payError && <div className="p-3 mb-3 border rounded bg-red-50 text-red-700 text-sm">{payError}</div>}
+
+        <div className="border rounded-xl p-4 bg-white shadow-sm">
+          <div className="text-lg font-semibold mb-3">Record a payment</div>
+          <div className="grid gap-3">
+            <div>
+              <label className="block text-xs text-gray-600 mb-1">Amount</label>
+              <input className="w-full border rounded px-3 py-2 text-sm" type="number" step="0.01" value={payAmount} onChange={e => setPayAmount(e.target.value)} />
+            </div>
+            <div>
+              <label className="block text-xs text-gray-600 mb-1">Method</label>
+              <select className="w-full border rounded px-3 py-2 text-sm" value={payMethod} onChange={e => setPayMethod(e.target.value)}>
+                <option value="cash">Cash</option>
+                <option value="card">Card</option>
+                <option value="eft">EFT</option>
+                <option value="voucher">Voucher</option>
+              </select>
+            </div>
+            <div ref={paySearchRef} className="relative">
+              <label className="block text-xs text-gray-600 mb-1">User</label>
+              <input
+                className="w-full border rounded px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-indigo-400"
+                placeholder="Search by name, email or phone…"
+                value={payUserQuery}
+                autoComplete="off"
+                onChange={e => { setPayUserQuery(e.target.value); setPayDropdownOpen(true); if (!e.target.value) { setPayUserId(""); setPayRegistrationId(""); } }}
+                onFocus={() => { if (payUserQuery.length >= 2) setPayDropdownOpen(true); }}
+              />
+              {payDropdownOpen && payUserQuery.trim().length >= 2 && (
+                <div className="absolute z-30 top-full left-0 right-0 mt-1 bg-white border border-gray-200 rounded-xl shadow-lg overflow-hidden">
+                  {payMatchedUsers.length > 0 ? (
+                    <>
+                      <div className="px-3 py-1.5 text-[11px] text-gray-400 bg-gray-50 border-b">
+                        {payMatchedUsers.length} match{payMatchedUsers.length !== 1 ? "es" : ""}
+                      </div>
+                      {payMatchedUsers.map(u => (
+                        <button
+                          key={u.id}
+                          type="button"
+                          className="w-full text-left px-3 py-2.5 hover:bg-indigo-50 border-b border-gray-100 last:border-b-0 transition-colors"
+                          onClick={() => selectPayUser(u)}
+                        >
+                          <div className="text-sm font-medium text-gray-900">{u.name}</div>
+                          <div className="text-xs text-gray-500 mt-0.5 flex gap-2 flex-wrap">
+                            {u.email && <span>{u.email}</span>}
+                            {u.phoneNumber && <span>· {u.phoneNumber}</span>}
+                          </div>
+                        </button>
+                      ))}
+                    </>
+                  ) : (
+                    <div className="px-3 py-3 text-sm text-gray-500 italic">No matching users found.</div>
+                  )}
+                </div>
+              )}
+            </div>
+            <div>
+              <label className="block text-xs text-gray-600 mb-1">Registration</label>
+              <select className="w-full max-w-full border rounded px-3 py-2 text-sm truncate" value={payRegistrationId} onChange={e => setPayRegistrationId(e.target.value)} disabled={!payUserId}>
+                <option value="">Select registration…</option>
+                {regsForPayUser.map((r: any) => {
+                  const out = regOutstanding[r.id]?.outstanding ?? 0;
+                  const label = `${r.event?.title || r.eventId || 'Event'} — Outstanding: R ${out.toFixed(2)} — #${String(r.id).slice(0,8)}`;
+                  return <option key={r.id} value={r.id} title={label}>{label}</option>;
+                })}
+              </select>
+              {!payUserId && <div className="text-xs text-gray-500 mt-1">Search for a user above to see their registrations.</div>}
+            </div>
+            <div>
+              <label className="block text-xs text-gray-600 mb-1">Paid at (optional)</label>
+              <input className="w-full border rounded px-3 py-2 text-sm" type="datetime-local" value={payPaidAtLocal} onChange={e => setPayPaidAtLocal(e.target.value)} max={new Date().toISOString().slice(0,16)} />
+              <div className="text-[10px] text-gray-500 mt-1">Leave blank to use current time</div>
+            </div>
+          </div>
+          <div className="mt-3">
+            <button disabled={paySubmitting} onClick={createManualPayment} className="w-full px-3 py-1.5 text-sm rounded bg-blue-600 text-white hover:bg-blue-700 disabled:opacity-50 shadow-sm">{paySubmitting ? 'Recording…' : 'Record payment'}</button>
+          </div>
+        </div>
+      </div>
+      )}
     </div>
   );
 }

frontend/src/app/dashboard/user/page.tsx

@@ -1,7 +1,7 @@
 "use client";
 import React, { useEffect, useMemo, useState } from "react";
 import { useAuth } from "@/hooks/useAuth";
-import { apiFetch } from "@/lib/api";
+import { apiFetch, createFullPaymentCheckout } from "@/lib/api";
 import { useRouter } from "next/navigation";
 import { formatDate } from "@/lib/date";
 import { formatPaymentMethod } from "@/lib/paymentMethod";
@@ -312,6 +312,41 @@ export default function UserDashboardPage() {
     }
   };
 
+  // Creates a Yoco checkout for the full outstanding balance and redirects there directly —
+  // choosing a partial amount is only available from the supervisor payments dashboard.
+  const payNow = async (registrationId: string) => {
+    if (!token) return;
+    setError(null);
+    setInfo(null);
+    setDialog({ open: true, message: "Creating payment link…", loading: true });
+    try {
+      const res = await createFullPaymentCheckout(token, registrationId);
+      if (res.priceUpdated) {
+        setDialog({ open: false, message: "", loading: false });
+        setError(`${res.message || 'Pricing has changed.'} New total: R ${(res.newTotal ?? 0).toFixed(2)}. Please try again.`);
+        // Refresh this registration's billing so the displayed outstanding reflects the new price
+        try {
+          const now = new Date();
+          const r = await apiFetch<any>(`/api/registrations/${encodeURIComponent(registrationId)}`, { authToken: token });
+          const pays = await apiFetch<any[]>(`/api/payments/registration/${encodeURIComponent(registrationId)}`, { authToken: token });
+          const totalPaid = pays.reduce((s, p) => s + (p.amount || 0), 0);
+          const totalDue = (r.registrationOptions || []).reduce((sum: number, opt: any) => sum + optionUnitPrice(opt, null, now) * (opt.quantity || 0), 0);
+          setBilling(prev => ({ ...prev, [registrationId]: { totalDue, totalPaid, outstanding: Math.max(0, totalDue - totalPaid), payments: pays } }));
+        } catch {}
+        return;
+      }
+      if (!res.redirectUrl) {
+        setDialog({ open: false, message: "", loading: false });
+        setError("Failed to create checkout");
+        return;
+      }
+      window.location.href = res.redirectUrl;
+    } catch (e: any) {
+      setDialog({ open: false, message: "", loading: false });
+      setError(e?.message || "Failed to create checkout");
+    }
+  };
+
   // Print helpers
   const buildTicketHtmlCard = (t: any, buyerName?: string) => {
     const eventTitle = t.event?.title || t.eventId || "Event";
@@ -1039,7 +1074,7 @@ export default function UserDashboardPage() {
                 {canModifyActive && activeBill && activeBill.outstanding > 0 ? (
                   <button
                     className="px-3 py-1.5 text-sm bg-green-600 text-white rounded hover:bg-green-700 shadow-sm focus:outline-none focus:ring-2 focus:ring-green-500 focus:ring-offset-1"
-                    onClick={() => router.push(`/dashboard/user/pay?registrationId=${encodeURIComponent(activeReg.id)}`)}
+                    onClick={() => payNow(activeReg.id)}
                   >Make payment</button>
                 ) : (
                   <>

frontend/src/app/dashboard/user/pay/page.tsx

@@ -1,208 +0,0 @@
-"use client";
-import React, { Suspense, useEffect, useMemo, useState } from "react";
-import { useSearchParams } from "next/navigation";
-import { useAuth } from "@/hooks/useAuth";
-import { apiFetch } from "@/lib/api";
-import { useDismissingState } from "@/hooks/useDismissingState";
-
-function MakePaymentContent() {
-  const searchParams = useSearchParams();
-  const registrationId = searchParams.get("registrationId");
-  const { token } = useAuth();
-  const [loading, setLoading] = useState(false);
-  const [error, setError] = useDismissingState<string | null>(null);
-  const [info, setInfo] = useDismissingState<string | null>(null);
-  const [registration, setRegistration] = useState<any | null>(null);
-  const [payments, setPayments] = useState<any[]>([]);
-  const [amount, setAmount] = useState<string>("");
-  const [priceUpdated, setPriceUpdated] = useState<{ newTotal: number; message: string } | null>(null);
-
-  // Compute effective unit price for a registration option.
-  // Uses priceSnapshot when available (authoritative backend price, variant-aware).
-  // Falls back to deadline-only early-bird calculation for legacy rows without a snapshot.
-  const optionUnitPrice = (opt: any, referenceTime: any, atTime: Date): number => {
-    if (opt.priceSnapshot !== null && opt.priceSnapshot !== undefined) {
-      return Number(opt.priceSnapshot);
-    }
-    const eo = opt.eventOption;
-    const variantId: string | null = opt.variantId || null;
-    const base = (opt.variant?.price !== null && opt.variant?.price !== undefined)
-      ? Number(opt.variant.price)
-      : Number(eo?.price || 0);
-    const allTiers = Array.isArray(eo?.earlyBirdTiers) ? eo.earlyBirdTiers.slice() : [];
-    const tiers = variantId
-      ? allTiers.filter((t: any) => t.variantId === variantId)
-      : allTiers.filter((t: any) => !t.variantId);
-    if (tiers.length === 0) return base;
-    const t = atTime ? new Date(atTime) : new Date();
-    const ref = referenceTime ? new Date(referenceTime) : t;
-    const applicable = tiers
-      .map((x: any) => ({ ...x, deadline: new Date(x.deadline) }))
-      .filter((x: any) => (ref < x.deadline) && (t < x.deadline))
-      .sort((a: any, b: any) => a.deadline.getTime() - b.deadline.getTime() || (a.order||0) - (b.order||0) || a.price - b.price);
-    if (applicable.length === 0) return base;
-    const price = Number(applicable[0].price);
-    return (price >= 0) ? price : base;
-  };
-
-  const totals = useMemo(() => {
-    if (!registration) return { totalDue: 0, totalPaid: 0, outstanding: 0 };
-    const now = new Date();
-    // totalDue uses priceSnapshot — not time-dependent, consistent with what the backend charges
-    const totalDue = (registration.registrationOptions || []).reduce((s: number, opt: any) => s + optionUnitPrice(opt, null, now) * (opt.quantity || 0), 0);
-    const totalPaid = payments.reduce((s: number, p: any) => s + (p.amount || 0), 0);
-    const outstanding = Math.max(0, totalDue - totalPaid);
-    return { totalDue, totalPaid, outstanding };
-  }, [registration, payments]);
-
-  const minAllowed = useMemo(() => {
-    if (totals.outstanding <= 0) return 0;
-    return totals.outstanding >= 15 ? 15 : totals.outstanding;
-  }, [totals.outstanding]);
-
-  useEffect(() => {
-    (async () => {
-      if (!token || !registrationId) return;
-      try {
-        setError(null);
-        setLoading(true);
-        const reg = await apiFetch<any>(`/api/registrations/${encodeURIComponent(registrationId)}`, { authToken: token });
-        setRegistration(reg);
-        const pays = await apiFetch<any[]>(`/api/payments/registration/${encodeURIComponent(registrationId)}`, { authToken: token });
-        setPayments(pays);
-      } catch (e: any) {
-        setError(e?.message || "Failed to load registration");
-      } finally {
-        setLoading(false);
-      }
-    })();
-  }, [token, registrationId]);
-
-  useEffect(() => {
-    if (totals.outstanding <= 0) {
-      setAmount("");
-    }
-  }, [totals.outstanding]);
-
-  const submit = async () => {
-    if (!token || !registrationId) return;
-    const amt = parseFloat(amount);
-    if (!(amt > 0)) { setError("Enter a valid amount"); return; }
-    if (amt > totals.outstanding) { setError(`Amount cannot exceed outstanding (R ${totals.outstanding.toFixed(2)})`); return; }
-    if (amt < minAllowed) {
-      if (totals.outstanding >= 15) {
-        setError("Minimum payment is R15");
-      } else {
-        setError(`Please pay the remaining outstanding amount (R ${totals.outstanding.toFixed(2)})`);
-      }
-      return;
-    }
-    try {
-      setError(null);
-      setInfo(null);
-      setPriceUpdated(null);
-      setLoading(true);
-      const res = await apiFetch<{ redirectUrl?: string; priceUpdated?: boolean; newTotal?: number; message?: string }>("/api/payments/yoco-checkout", {
-        method: "POST",
-        body: {
-          registrationId,
-          amount: amt,
-          successUrl: window.location.origin + "/payment/success",
-          cancelUrl: window.location.origin + "/payment/cancel",
-          failureUrl: window.location.origin + "/payment/failure",
-        },
-        authToken: token,
-      });
-      if (res.priceUpdated) {
-        // Early-bird price changed — show warning and reload registration data
-        setPriceUpdated({ newTotal: res.newTotal ?? 0, message: res.message ?? 'Prices have changed.' });
-        // Reload registration so totals reflect updated priceSnapshot
-        try {
-          const reg = await apiFetch<any>(`/api/registrations/${encodeURIComponent(registrationId)}`, { authToken: token });
-          setRegistration(reg);
-          const pays = await apiFetch<any[]>(`/api/payments/registration/${encodeURIComponent(registrationId)}`, { authToken: token });
-          setPayments(pays);
-        } catch {}
-        setAmount("");
-        return;
-      }
-      setInfo("Redirecting to payment...");
-      window.location.href = res.redirectUrl!;
-    } catch (e: any) {
-      setError(e?.message || "Failed to create checkout");
-    } finally {
-      setLoading(false);
-    }
-  };
-
-  if (!registrationId) return <div className="p-6">Missing registrationId.</div>;
-
-  return (
-    <div className="max-w-xl mx-auto w-full p-6">
-      <h1 className="text-2xl font-semibold mb-4">Make a payment</h1>
-      {error && <p className="text-red-600 text-sm mb-3">{error}</p>}
-      {info && <p className="text-green-700 text-sm mb-3">{info}</p>}
-      {priceUpdated && (
-        <div className="mb-4 p-3 border border-amber-300 bg-amber-50 rounded text-sm text-amber-800">
-          <strong>Pricing has changed.</strong> {priceUpdated.message}
-          <div className="mt-1">New outstanding: <strong>R {priceUpdated.newTotal.toFixed(2)}</strong></div>
-          <button
-            className="mt-2 text-xs underline text-amber-700 hover:text-amber-900"
-            onClick={() => setPriceUpdated(null)}
-          >OK, I understand — continue with new price</button>
-        </div>
-      )}
-
-      {registration ? (
-        <div className="border rounded p-3 mb-4">
-          <div className="font-medium">{registration.event?.title || registration.eventId}</div>
-          <div className="text-sm text-gray-600">Registration #{registration.id.slice(0,8)}</div>
-          <div className="mt-2 text-sm">
-            <div>Total: R {totals.totalDue.toFixed(2)}</div>
-            <div>Paid: R {totals.totalPaid.toFixed(2)}</div>
-            <div>Outstanding: <span className={totals.outstanding>0?"text-red-600":"text-green-700"}>R {totals.outstanding.toFixed(2)}</span></div>
-          </div>
-          {(() => {
-            const tiers = (registration.registrationOptions || []).flatMap((ro: any) => Array.isArray(ro.eventOption?.earlyBirdTiers) ? ro.eventOption.earlyBirdTiers : []);
-            const upcoming = tiers.map((t: any) => ({ ...t, deadline: new Date(t.deadline) })).filter((t: any) => new Date() < t.deadline).sort((a: any, b: any) => a.deadline.getTime() - b.deadline.getTime());
-            if (upcoming.length === 0) return null;
-            const d = upcoming[0].deadline as Date;
-            const dateStr = d.toLocaleDateString(undefined, { year: 'numeric', month: 'short', day: '2-digit' });
-            return <div className="mt-2 text-xs text-amber-700">Early bird pricing applies if paid before {dateStr}.</div>;
-          })()}
-        </div>
-      ) : (
-        <p className="text-sm text-gray-600 mb-4">Loading registration...</p>
-      )}
-
-      <label className="block text-sm font-medium mb-1">Amount (R)</label>
-      <input
-        type="number"
-        min={minAllowed.toFixed(2)}
-        max={totals.outstanding > 0 ? totals.outstanding.toFixed(2) : "0"}
-        step="1"
-        placeholder={totals.outstanding >= 15 ? "Enter amount (min R15)" : `Enter amount (max R ${totals.outstanding.toFixed(2)})`}
-        value={amount}
-        onChange={(e) => setAmount(e.target.value)}
-        disabled={totals.outstanding <= 0}
-        className="w-full border rounded px-3 py-2 mb-1 disabled:opacity-60"
-      />
-      {totals.outstanding > 0 && (
-        <p className="text-xs text-gray-600 mb-3">Minimum payment {totals.outstanding >= 15 ? "is R15" : `is the remaining outstanding amount (R ${totals.outstanding.toFixed(2)})`}.</p>
-      )}
-      <button
-        disabled={loading || totals.outstanding <= 0}
-        onClick={submit}
-        className="bg-green-600 text-white px-4 py-2 rounded disabled:opacity-60"
-      >{loading?"Creating checkout...": totals.outstanding <= 0 ? "No outstanding amount" : "Pay now"}</button>
-    </div>
-  );
-}
-
-export default function MakePaymentPage() {
-  return (
-    <Suspense fallback={<div className="p-6">Loading...</div>}>
-      <MakePaymentContent />
-    </Suspense>
-  );
-}

frontend/src/app/registration/success/page.tsx

@@ -22,6 +22,7 @@ function RegistrationSuccessContent() {
   const [loading, setLoading] = React.useState(false);
   const [error, setError] = React.useState<string | null>(null);
   const [info, setInfo] = React.useState<string | null>(null);
+  const [payLoading, setPayLoading] = React.useState(false);
 
   React.useEffect(() => {
     (async () => {
@@ -79,9 +80,32 @@ function RegistrationSuccessContent() {
     }
   }, [reg, totalDue, router]);
 
-  const goPay = () => {
+  const goPay = async () => {
     if (!registrationId) return;
-    router.push(`/dashboard/user/pay?registrationId=${encodeURIComponent(registrationId)}`);
+    const token = (typeof window !== 'undefined') ? localStorage.getItem('token') : null;
+    if (!token) { setError('Please login to pay.'); return; }
+    try {
+      setError(null);
+      setPayLoading(true);
+      const { createFullPaymentCheckout } = await import('@/lib/api');
+      const res = await createFullPaymentCheckout(token, registrationId);
+      if (res.priceUpdated) {
+        // Early-bird price changed since registration — surface the new total and
+        // reload the registration so the displayed totalDue reflects it, instead of redirecting.
+        setError(`${res.message || 'Pricing has changed.'} New total: R ${(res.newTotal ?? 0).toFixed(2)}. Please try again.`);
+        try {
+          const r = await (await import('@/lib/api')).apiFetch(`/api/registrations/${encodeURIComponent(registrationId)}`, { authToken: token });
+          if (r) setReg(r);
+        } catch {}
+        return;
+      }
+      if (!res.redirectUrl) { setError('Failed to create checkout'); return; }
+      window.location.href = res.redirectUrl;
+    } catch (e: any) {
+      setError(e?.message || 'Failed to create checkout');
+    } finally {
+      setPayLoading(false);
+    }
   };
 
   const goDashboard = () => {
@@ -108,9 +132,9 @@ function RegistrationSuccessContent() {
             {(totalDue > 0 || (!reg && fallbackTotalDue > 0)) && (
               <button
                 onClick={goPay}
-                disabled={!registrationId}
+                disabled={!registrationId || payLoading}
                 className="px-4 py-2 rounded bg-green-600 text-white disabled:opacity-60"
-              >Pay with Yoco</button>
+              >{payLoading ? "Creating checkout..." : "Pay with Yoco"}</button>
             )}
             <button
               onClick={goDashboard}

frontend/src/lib/api.ts

@@ -155,3 +155,19 @@ export function fetchAllUsers(token: string, params: Record<string, string> = {}
 export function fetchAllPayments(token: string, params: Record<string, string> = {}): Promise<any[]> {
   return fetchAllPages("/api/payments", token, params);
 }
+
+// Creates a Yoco checkout for a registration's full remaining outstanding balance.
+// Omitting `amount` makes the backend charge the full remainder rather than a partial amount —
+// partial-amount checkouts are only ever created from the supervisor payments dashboard.
+export function createFullPaymentCheckout(token: string, registrationId: string): Promise<{ redirectUrl?: string; priceUpdated?: boolean; newTotal?: number; message?: string }> {
+  return apiFetch("/api/payments/yoco-checkout", {
+    method: "POST",
+    authToken: token,
+    body: {
+      registrationId,
+      successUrl: window.location.origin + "/payment/success",
+      cancelUrl: window.location.origin + "/payment/cancel",
+      failureUrl: window.location.origin + "/payment/failure",
+    },
+  });
+}