Phase5: Automate bill creation

src/app/api/admin/cron/issue-monthly/route.ts

@@ -0,0 +1,68 @@
+import { NextResponse } from "next/server";
+import { z } from "zod";
+import { getSessionUser, requirePlatformRole } from "@/lib/session";
+import { runMonthlyIssuance } from "@/lib/cron";
+import { safeError } from "@/lib/errors";
+
+/**
+ * POST /api/admin/cron/issue-monthly
+ *
+ * Admin-side manual trigger for the issuance sweep — same business
+ * logic as /api/cron/issue-monthly, different auth (session-based
+ * platform role check) and the option to override the target
+ * year/month from the request body.
+ *
+ * Body (all optional):
+ *   { year?: number, month?: number }
+ *
+ * Default target is the previous local month — matching what the
+ * automated cron would do. Override is useful for catching up after
+ * a failed run or re-billing a past month after fixing data.
+ */
+const bodySchema = z.object({
+  year: z.number().int().min(2000).max(3000).optional(),
+  month: z.number().int().min(1).max(12).optional(),
+});
+
+export async function POST(request: Request) {
+  let user;
+  try {
+    await requirePlatformRole();
+    user = await getSessionUser();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  if (!user) {
+    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+  }
+  const body = await request.json().catch(() => ({}));
+  const parsed = bodySchema.safeParse(body);
+  if (!parsed.success) {
+    return NextResponse.json(
+      { error: "Invalid request", details: parsed.error.flatten() },
+      { status: 400 }
+    );
+  }
+  if (
+    (parsed.data.year && !parsed.data.month) ||
+    (parsed.data.month && !parsed.data.year)
+  ) {
+    return NextResponse.json(
+      { error: "year and month must both be provided, or neither" },
+      { status: 400 }
+    );
+  }
+  try {
+    const { runId, summary } = await runMonthlyIssuance({
+      triggeredBy: user.id,
+      year: parsed.data.year,
+      month: parsed.data.month,
+    });
+    return NextResponse.json({ runId, ...summary });
+  } catch (e) {
+    return NextResponse.json(
+      { error: safeError(e, "Issuance sweep failed.") },
+      { status: 500 }
+    );
+  }
+}