chore: initial project import

lib/campaign-utils.ts

@@ -0,0 +1,79 @@
+import { CampaignStatus, DeliveryStatus } from "@prisma/client";
+
+import { prisma } from "@/lib/prisma";
+
+export const DEFAULT_MAX_SEND_ATTEMPTS = 3;
+
+export const RETRY_BACKOFF_SECONDS = [10, 30, 120];
+
+export function getRetryDelaySeconds(attempt: number) {
+  if (attempt <= 1) {
+    return RETRY_BACKOFF_SECONDS[0];
+  }
+
+  if (attempt - 1 < RETRY_BACKOFF_SECONDS.length) {
+    return RETRY_BACKOFF_SECONDS[attempt - 1];
+  }
+
+  return RETRY_BACKOFF_SECONDS[RETRY_BACKOFF_SECONDS.length - 1];
+}
+
+export function renderCampaignMessage(templateBody: string, values: Record<string, string>) {
+  return templateBody.replace(/\{\{\s*(\d+)\s*\}\}/g, (match, token) => {
+    const key = String(token);
+    return values[key] ?? match;
+  });
+}
+
+export async function recalculateCampaignTotals(campaignId: string) {
+  const recipients = await prisma.campaignRecipient.findMany({
+    where: { campaignId },
+    select: { sendStatus: true }
+  });
+
+  const totalRecipients = recipients.length;
+  const totalSent = recipients.filter((recipient) => recipient.sendStatus !== DeliveryStatus.QUEUED).length;
+  const totalDelivered = recipients.filter((recipient) =>
+    recipient.sendStatus === DeliveryStatus.DELIVERED || recipient.sendStatus === DeliveryStatus.READ
+  ).length;
+  const totalRead = recipients.filter((recipient) => recipient.sendStatus === DeliveryStatus.READ).length;
+  const totalFailed = recipients.filter((recipient) => recipient.sendStatus === DeliveryStatus.FAILED).length;
+  const totalQueued = recipients.filter((recipient) => recipient.sendStatus === DeliveryStatus.QUEUED).length;
+
+  const isDone = totalQueued === 0;
+  const status = isDone
+    ? totalFailed > 0
+      ? totalSent > 0
+        ? CampaignStatus.PARTIAL_FAILED
+        : CampaignStatus.FAILED
+      : CampaignStatus.COMPLETED
+    : totalFailed > 0
+      ? CampaignStatus.PARTIAL_FAILED
+      : CampaignStatus.PROCESSING;
+
+  const updateData: {
+    totalRecipients: number;
+    totalSent: number;
+    totalDelivered: number;
+    totalRead: number;
+    totalFailed: number;
+    status: CampaignStatus;
+    finishedAt?: Date | null;
+  } = {
+    totalRecipients,
+    totalSent,
+    totalDelivered,
+    totalRead,
+    totalFailed,
+    status
+  };
+
+  if (isDone) {
+    updateData.finishedAt = new Date();
+  }
+
+  await prisma.broadcastCampaign.update({
+    where: { id: campaignId },
+    data: updateData
+  });
+}