blog-likes.ts

import 'server-only'
import { prisma } from '@/utils/prisma'
import { kv, likeCountKey, likesKey } from '@/utils/kv'

const TTL_SECONDS = 60 * 60 * 24 // 24h

// Clears the cached like count and likers set. Use after a like/unlike write.
export async function invalidateLike(id: number): Promise<void> {
  const p = kv.pipeline()
  p.del(likeCountKey(id))
  p.del(likesKey(id))
  await p.exec()
}

export async function getLikeCountFromDb(id: number): Promise<number> {
  return prisma.blogLike.count({ where: { post_id: id } })
}

export async function getLikeCount(id: number): Promise<number> {
  const cached = await kv.get<number | string>(likeCountKey(id))