Phase7: Void/Refund logic

src/components/billing/customer-credit-note-list.tsx

@@ -0,0 +1,101 @@
+import { useTranslations, useFormatter } from "next-intl";
+import { Card } from "@/components/ui/card";
+import type { CreditNote } from "@/types";
+
+interface Props {
+  creditNotes: CreditNote[];
+}
+
+const kindColors: Record<string, string> = {
+  // Voids = the invoice was cancelled; gentle red.
+  void: "text-error bg-error/10",
+  // Refunds = money returned; also red but slightly differentiated.
+  refund: "text-error bg-error/10",
+};
+
+/**
+ * Phase 7 — customer's credit-note history below the invoice list.
+ *
+ * Hidden entirely when the org has zero credit notes (most orgs in
+ * normal operation). When present, each row shows the credit-note
+ * number, the invoice it relates to, kind (void / refund), amount,
+ * and a download link to the PDF.
+ *
+ * No detail page — clicking the PDF link opens the document inline
+ * (browser PDF viewer), which IS the credit-note detail view. A
+ * separate per-credit-note web page would duplicate what's in the
+ * PDF and add no value.
+ */
+export function CustomerCreditNoteList({ creditNotes }: Props) {
+  const t = useTranslations("customerBilling");
+  const fmt = useFormatter();
+
+  if (creditNotes.length === 0) {
+    return null;
+  }
+
+  return (
+    <Card>
+      <table className="w-full text-sm">
+        <thead className="text-xs text-text-muted text-left">
+          <tr>
+            <th className="pb-2">{t("creditNoteNumberCol")}</th>
+            <th className="pb-2">{t("creditNoteInvoiceCol")}</th>
+            <th className="pb-2">{t("creditNoteIssuedCol")}</th>
+            <th className="pb-2 text-right">{t("creditNoteAmountCol")}</th>
+            <th className="pb-2 text-right">{t("creditNoteKindCol")}</th>
+            <th className="pb-2 text-right">{t("creditNotePdfCol")}</th>
+          </tr>
+        </thead>
+        <tbody>
+          {creditNotes.map((cn) => (
+            <tr
+              key={cn.id}
+              className="border-t border-border align-middle"
+            >
+              <td className="py-2 font-mono text-xs">
+                {cn.creditNoteNumber}
+              </td>
+              <td className="py-2 font-mono text-xs text-text-secondary">
+                {cn.invoiceNumber}
+              </td>
+              <td className="py-2 text-text-secondary">
+                {fmt.dateTime(new Date(cn.issuedAt), { dateStyle: "medium" })}
+              </td>
+              <td className="py-2 text-right font-mono">
+                CHF {cn.amountChf.toFixed(2)}
+              </td>
+              <td className="py-2 text-right">
+                <span
+                  className={`px-2 py-0.5 rounded text-xs ${
+                    kindColors[cn.kind] ?? ""
+                  }`}
+                >
+                  {t(`creditNoteKind_${cn.kind}` as any)}
+                </span>
+              </td>
+              <td className="py-2 text-right">
+                {cn.hasPdf ? (
+                  <a
+                    href={`/api/credit-notes/${encodeURIComponent(
+                      cn.creditNoteNumber
+                    )}/pdf`}
+                    className="text-accent hover:underline text-xs"
+                    target="_blank"
+                    rel="noopener noreferrer"
+                  >
+                    {t("downloadPdf")}
+                  </a>
+                ) : (
+                  <span className="text-text-muted text-xs italic">
+                    {t("creditNoteNoPdf")}
+                  </span>
+                )}
+              </td>
+            </tr>
+          ))}
+        </tbody>
+      </table>
+    </Card>
+  );
+}

src/components/billing/customer-invoice-list.tsx

@@ -12,6 +12,13 @@ const statusColors: Record<string, string> = {
   paid: "text-success bg-success/10",
   overdue: "text-error bg-error/10",
   void: "text-text-muted bg-surface-3 line-through",
+  // Phase 7: refund states. Red tinting matches the credit-note
+  // PDF accent so customers reading the table get a visual cue
+  // that something was credited back. partially_refunded reads
+  // as a partial state (mixed colour), fully_refunded reads as
+  // closed (line-through like void).
+  partially_refunded: "text-error bg-error/10",
+  fully_refunded: "text-text-muted bg-error/10 line-through",
 };
 
 /**