feat(renovaciones): renewal notification emails over SES

INSURANCE_FEATURES_SPEC §1. The office printed and mailed renewal letters from the legacy CONTROL <ramo> RENEW[2/3] paper log; 91% of policyholders have an email on file, so send the notice instead and keep the paper log as the fallback. A daily cron (06:00 America/Tijuana) sweeps three generations off policyTo — 30 and 15 days before expiry, 7 days after — sends each through SES, and upserts RenewalNotice by [policyId, generation] so a policy is never notified twice for the same milestone. RenewalNotice now records providerMessageId, so a later bounce or complaint webhook can be traced back to the row that sent it. - customers.emailOptOut excludes a customer from every sweep; editable from the customer form - scheduled_job_states holds the sweep's lock and last successful run; the window is widened to cover days the job did not run, so a weekend outage does not silently drop a generation - SES unconfigured is not an error outside production — messages are logged and skipped, so dev and CI never send - /renovaciones (renewal:send, MANAGER+) lists what is pending per generation, runs the sweep by hand, and marks a notice sent by mail for the customers with no email - POST /policies/:id/renewal-notices records that manual mark - the aviso-renovacion report and the emails now share one projection (reports/renewal-letter.ts) instead of two copies of the mapping
2026-08-02 02:00:02 -07:00
parent 3125b52057
commit 87d8743251
29 changed files with 1450 additions and 82 deletions
@@ -0,0 +1,248 @@
+import {
+  ConflictException,
+  Injectable,
+  Logger,
+  ServiceUnavailableException,
+} from "@nestjs/common";
+import { Cron } from "@nestjs/schedule";
+import { AuditService } from "../common/audit.service";
+import { PrismaService } from "../prisma/prisma.service";
+import {
+  renewalLetterSelect,
+  toRenewalLetterRow,
+} from "../reports/renewal-letter";
+import { MailService } from "./mail.service";
+import { renderRenewalEmail } from "./renewal-email";
+
+export const RENEWAL_CADENCE = [
+  { generation: 1, offsetDays: 30 },
+  { generation: 2, offsetDays: 15 },
+  { generation: 3, offsetDays: -7 },
+] as const;
+
+const JOB_NAME = "renewal-email-sweep";
+const TIME_ZONE = "America/Tijuana";
+const DAY_MS = 86400000;
+
+export function dateInTimeZone(now: Date, timeZone = TIME_ZONE): Date {
+  const parts = new Intl.DateTimeFormat("en-US", {
+    timeZone,
+    year: "numeric",
+    month: "2-digit",
+    day: "2-digit",
+  }).formatToParts(now);
+  const value = (type: Intl.DateTimeFormatPartTypes) =>
+    Number(parts.find((part) => part.type === type)?.value);
+  return new Date(Date.UTC(value("year"), value("month") - 1, value("day")));
+}
+
+export function addUtcDays(date: Date, days: number): Date {
+  return new Date(date.getTime() + days * DAY_MS);
+}
+
+export function renewalWindow(
+  today: Date,
+  offsetDays: number,
+  lastSuccessfulAt?: Date | null,
+): { from: Date; to: Date } {
+  const to = addUtcDays(today, offsetDays);
+  if (!lastSuccessfulAt) return { from: to, to };
+  const previousDay = dateInTimeZone(lastSuccessfulAt);
+  if (previousDay >= today) return { from: to, to };
+  return { from: addUtcDays(previousDay, offsetDays + 1), to };
+}
+
+@Injectable()
+export class RenewalsService {
+  private readonly logger = new Logger(RenewalsService.name);
+
+  constructor(
+    private readonly prisma: PrismaService,
+    private readonly mail: MailService,
+    private readonly audit: AuditService,
+  ) {}
+
+  @Cron("0 6 * * *", { timeZone: TIME_ZONE })
+  async scheduledSweep(): Promise<void> {
+    try {
+      await this.sweep();
+    } catch (error) {
+      this.logger.error(
+        `Falló el barrido de renovaciones: ${(error as Error).message}`,
+      );
+    }
+  }
+
+  async pending(days = 30) {
+    const today = dateInTimeZone(new Date());
+    const state = await this.prisma.scheduledJobState.findUnique({
+      where: { name: JOB_NAME },
+      select: { lastSuccessfulAt: true },
+    });
+    const cadence = RENEWAL_CADENCE.filter(
+      (item) => item.offsetDays < 0 || item.offsetDays <= days,
+    );
+    const groups = await Promise.all(
+      cadence.map(async (item) => ({
+        generation: item.generation,
+        rows: await this.findCandidates(
+          item,
+          today,
+          state?.lastSuccessfulAt ?? null,
+        ),
+      })),
+    );
+
+    return groups.flatMap(({ generation, rows }) =>
+      rows
+        .filter((policy) => Boolean(policy.customer.email?.trim()))
+        .map((policy) => toRenewalLetterRow(policy, generation)),
+    );
+  }
+
+  async sweep(userId?: string) {
+    const now = new Date();
+    const state = await this.acquireLock(now);
+
+    try {
+      if (!this.mail.available) {
+        throw new ServiceUnavailableException(
+          "El servicio de correo no está configurado.",
+        );
+      }
+
+      const today = dateInTimeZone(now);
+      let eligible = 0;
+      let sent = 0;
+      let skipped = 0;
+      const failures: Array<{ policyId: string; generation: number; error: string }> = [];
+
+      for (const cadence of RENEWAL_CADENCE) {
+        const policies = await this.findCandidates(
+          cadence,
+          today,
+          state.lastSuccessfulAt,
+        );
+        eligible += policies.length;
+
+        for (const policy of policies) {
+          const to = policy.customer.email?.trim();
+          if (!to) {
+            skipped++;
+            continue;
+          }
+
+          try {
+            const letter = toRenewalLetterRow(policy, cadence.generation);
+            const message = renderRenewalEmail(letter);
+            const result = await this.mail.send({ to, ...message });
+            const sentAt = new Date();
+
+            await this.prisma.renewalNotice.upsert({
+              where: {
+                policyId_generation: {
+                  policyId: policy.id,
+                  generation: cadence.generation,
+                },
+              },
+              create: {
+                policyId: policy.id,
+                generation: cadence.generation,
+                channel: "EMAIL",
+                sentAt,
+                sentById: userId,
+                providerMessageId: result.providerId,
+              },
+              update: {
+                channel: "EMAIL",
+                sentAt,
+                sentById: userId,
+                providerMessageId: result.providerId,
+              },
+            });
+            sent++;
+            void this.audit.log(userId, "renewalNotice.send", {
+              policyId: policy.id,
+              generation: cadence.generation,
+              providerMessageId: result.providerId,
+            });
+          } catch (error) {
+            failures.push({
+              policyId: policy.id,
+              generation: cadence.generation,
+              error: (error as Error).message,
+            });
+          }
+        }
+      }
+
+      const result = { eligible, sent, skipped, failed: failures.length, failures };
+      await this.releaseLock(failures.length === 0 ? now : null);
+      void this.audit.log(userId, "renewalNotice.sweep", result);
+      return result;
+    } catch (error) {
+      await this.releaseLock(null);
+      throw error;
+    }
+  }
+
+  private findCandidates(
+    cadence: (typeof RENEWAL_CADENCE)[number],
+    today: Date,
+    lastSuccessfulAt: Date | null,
+  ) {
+    const window = renewalWindow(today, cadence.offsetDays, lastSuccessfulAt);
+    return this.prisma.policy.findMany({
+      where: {
+        archivedAt: null,
+        policyTo: { gte: window.from, lte: window.to },
+        customer: {
+          archivedAt: null,
+          emailOptOut: false,
+          email: { not: "" },
+        },
+        renewalNotices: {
+          none: { generation: cadence.generation, sentAt: { not: null } },
+        },
+      },
+      orderBy: [{ policyTo: "asc" }, { policyNumber: "asc" }],
+      select: renewalLetterSelect(cadence.generation),
+    });
+  }
+
+  private async acquireLock(now: Date) {
+    await this.prisma.scheduledJobState.upsert({
+      where: { name: JOB_NAME },
+      create: { name: JOB_NAME },
+      update: { updatedAt: now },
+    });
+
+    const acquired = await this.prisma.scheduledJobState.updateMany({
+      where: {
+        name: JOB_NAME,
+        OR: [{ lockedUntil: null }, { lockedUntil: { lte: now } }],
+      },
+      data: { lockedUntil: new Date(now.getTime() + 2 * 60 * 60 * 1000) },
+    });
+
+    if (acquired.count !== 1) {
+      throw new ConflictException(
+        "Ya hay un barrido de renovaciones en curso.",
+      );
+    }
+
+    return this.prisma.scheduledJobState.findUniqueOrThrow({
+      where: { name: JOB_NAME },
+    });
+  }
+
+  private async releaseLock(lastSuccessfulAt: Date | null): Promise<void> {
+    await this.prisma.scheduledJobState.update({
+      where: { name: JOB_NAME },
+      data: {
+        lockedUntil: null,
+        ...(lastSuccessfulAt && { lastSuccessfulAt }),
+      },
+    });
+  }
+}