Phase7b: Manual Invoice

src/lib/email.ts

@@ -923,8 +923,8 @@ export async function sendInvoiceIssuedEmail(params: {
   currency: string; // "CHF" — passed for future-proofing
   dueAt: string;    // ISO date
   lineCount: number;
-  periodStart: string; // ISO date
-  periodEnd: string;   // ISO date
+  periodStart: string | null; // ISO date; null for custom invoices
+  periodEnd: string | null;   // ISO date; null for custom invoices
   locale: "de" | "en" | "fr" | "it";
 }): Promise<void> {
   // All four locales — the email is sent in the invoice's locale,
@@ -960,7 +960,13 @@ export async function sendInvoiceIssuedEmail(params: {
   const safeCompany = escapeHtml(params.companyName);
   const safeNumber = escapeHtml(params.invoiceNumber);
   const totalFmt = `${params.currency} ${params.totalChf.toFixed(2)}`;
-  const periodFmt = `${params.periodStart.slice(0, 10)} → ${params.periodEnd.slice(0, 10)}`;
+  // Phase 8: period is null for custom invoices. When missing, the
+  // template skips the "Service period:" line entirely; otherwise
+  // it renders the date range as before.
+  const periodFmt =
+    params.periodStart && params.periodEnd
+      ? `${params.periodStart.slice(0, 10)} → ${params.periodEnd.slice(0, 10)}`
+      : null;
   const dueFmt = params.dueAt.slice(0, 10);
 
   // Both bodies built in the invoice's locale.
@@ -977,7 +983,9 @@ export async function sendInvoiceIssuedEmail(params: {
         introByLocale[L],
         "",
         `${l.number}:  ${params.invoiceNumber}`,
-        `${l.period}:  ${periodFmt}`,
+        // Phase 8: omit the period line entirely for custom
+        // invoices (which have no billing period).
+        ...(periodFmt ? [`${l.period}:  ${periodFmt}`] : []),
         `${l.total}:   ${totalFmt}`,
         `${l.due}:     ${dueFmt}`,
         `${l.lines}:   ${params.lineCount}`,
@@ -995,7 +1003,7 @@ export async function sendInvoiceIssuedEmail(params: {
           <p>${escapeHtml(introByLocale[L])}</p>
           <table style="width:100%; border-collapse:collapse; margin:16px 0; font-size:14px;">
             <tr><td style="color:#888; padding:6px 0; width:120px;">${l.number}</td><td><strong>${safeNumber}</strong></td></tr>
-            <tr><td style="color:#888; padding:6px 0;">${l.period}</td><td>${escapeHtml(periodFmt)}</td></tr>
+            ${periodFmt ? `<tr><td style="color:#888; padding:6px 0;">${l.period}</td><td>${escapeHtml(periodFmt)}</td></tr>` : ""}
             <tr><td style="color:#888; padding:6px 0;">${l.total}</td><td style="color:#10B981; font-weight:600;">${escapeHtml(totalFmt)}</td></tr>
             <tr><td style="color:#888; padding:6px 0;">${l.due}</td><td>${escapeHtml(dueFmt)}</td></tr>
             <tr><td style="color:#888; padding:6px 0;">${l.lines}</td><td>${params.lineCount}</td></tr>