feat : comment feature

lib/comments/push.ts

@@ -0,0 +1,42 @@
+import "server-only";
+
+import { and, eq } from "drizzle-orm";
+import webPush from "web-push";
+import { getDb } from "@/db";
+import { comments, commentPushSubscriptions, commentRevisions, users } from "@/db/schema";
+import { pushPublicKey, validPushEndpoint } from "@/lib/commission/push";
+import { authorizeComment } from "./repository";
+
+export async function sendCommentReplyPush(id: string) {
+  if (!pushPublicKey()) return;
+  const [reply] = await getDb().select().from(comments).where(eq(comments.id, id)).limit(1);
+  if (!reply?.replyToId || reply.hidden || reply.deletedAt) return;
+  const [parent] = await getDb().select().from(comments).where(eq(comments.id, reply.replyToId)).limit(1);
+  if (!parent || parent.authorId === reply.authorId || parent.hidden || parent.deletedAt) return;
+  const [recipient] = await getDb().select().from(users).where(eq(users.id, parent.authorId)).limit(1);
+  if (!recipient || recipient.banned) return;
+  let destination;
+  try {
+    ({ destination } = await authorizeComment(id, { id: recipient.id, admin: recipient.role === "admin" && recipient.emailVerified }));
+  } catch { return; }
+  const [author] = await getDb().select({ name: users.name }).from(users).where(eq(users.id, reply.authorId)).limit(1);
+  const [revision] = await getDb().select({ text: commentRevisions.text }).from(commentRevisions)
+    .where(and(eq(commentRevisions.commentId, id), eq(commentRevisions.version, reply.version))).limit(1);
+  const subscriptions = await getDb().select().from(commentPushSubscriptions).where(eq(commentPushSubscriptions.userId, recipient.id));
+  if (!subscriptions.length) return;
+  webPush.setVapidDetails(process.env.WEB_PUSH_SUBJECT!, process.env.WEB_PUSH_PUBLIC_KEY!, process.env.WEB_PUSH_PRIVATE_KEY!);
+  const payload = JSON.stringify({ id: `comment-${id}`, title: `${author?.name ?? "ผู้ใช้"} ตอบกลับความคิดเห็นของคุณ`,
+    body: revision?.text.slice(0, 300) || "ส่งรูปภาพ", icon: "/icon/nav/Comment.webp",
+    url: `${destination.href}${destination.href.includes("?") ? "&" : "?"}reply=${id}#comment-${reply.rootId}` });
+  for (let offset = 0; offset < subscriptions.length; offset += 10) {
+    await Promise.all(subscriptions.slice(offset, offset + 10).map(async (subscription) => {
+      if (!validPushEndpoint(subscription.endpoint)) return;
+      try {
+        await webPush.sendNotification({ endpoint: subscription.endpoint, keys: { p256dh: subscription.p256dh, auth: subscription.auth } }, payload, { TTL: 60 * 60 * 24, timeout: 5000 });
+      } catch (cause) {
+        if (cause && typeof cause === "object" && "statusCode" in cause && (cause.statusCode === 404 || cause.statusCode === 410))
+          await getDb().delete(commentPushSubscriptions).where(eq(commentPushSubscriptions.endpoint, subscription.endpoint));
+      }
+    }));
+  }
+}