Axil_website/src/lib/payload.ts

import 'server-only';
import { getPayload } from 'payload';
import config from '@payload-config';
import { unstable_cache } from 'next/cache';
import type { Post, Service, Testimonial, Navigation, Footer, HomePage } from '@/payload-types';

// ─── Singleton client ──────────────────────────────────────────────────────

let _client: Awaited<ReturnType<typeof getPayload>> | null = null;

export async function getPayloadClient() {
  if (!_client) _client = await getPayload({ config });
  return _client;
}

// ─── Navigation ────────────────────────────────────────────────────────────

export const getNavigation = unstable_cache(
  async (): Promise<Navigation | null> => {
    try {
      const payload = await getPayloadClient();
      return await payload.findGlobal({ slug: 'navigation' });
    } catch {
      return null;
    }
  },
  ['navigation'],
  { tags: ['navigation'], revalidate: false },
);

// ─── Footer ────────────────────────────────────────────────────────────────

export const getFooter = unstable_cache(
  async (): Promise<Footer | null> => {
    try {
      const payload = await getPayloadClient();
      return await payload.findGlobal({ slug: 'footer' });
    } catch {
      return null;
    }
  },
  ['footer'],
  { tags: ['footer'], revalidate: false },
);

// ─── Posts ─────────────────────────────────────────────────────────────────

export const getPublishedPosts = unstable_cache(
  async (limit = 10): Promise<Post[]> => {
    try {
      const payload = await getPayloadClient();
      const result = await payload.find({
        collection: 'posts',
        where: { status: { equals: 'published' } },
        sort: '-publishedAt',
        limit,
        depth: 1,
      });
      return result.docs as Post[];
    } catch {
      return [];
    }
  },
  ['posts'],
  { tags: ['posts'], revalidate: false },
);

export function getPostBySlugCached(slug: string): Promise<Post | undefined> {
  return unstable_cache(
    async () => {
      try {
        const payload = await getPayloadClient();
        const result = await payload.find({
          collection: 'posts',
          where: {
            and: [{ slug: { equals: slug } }, { status: { equals: 'published' } }],
          },
          limit: 1,
          depth: 1,
        });
        return result.docs[0] as Post | undefined;
      } catch {
        return undefined;
      }
    },
    [`post-${slug}`],
    { tags: ['posts', `post-${slug}`], revalidate: false },
  )();
}

// ─── Services ──────────────────────────────────────────────────────────────

export const getPublishedServices = unstable_cache(
  async (limit = 10): Promise<Service[]> => {
    try {
      const payload = await getPayloadClient();
      const result = await payload.find({
        collection: 'services',
        where: { status: { equals: 'published' } },
        sort: 'createdAt',
        limit,
        depth: 1,
      });
      return result.docs as Service[];
    } catch {
      return [];
    }
  },
  ['services'],
  { tags: ['services'], revalidate: false },
);

export function getServiceBySlugCached(slug: string): Promise<Service | undefined> {
  return unstable_cache(
    async () => {
      try {
        const payload = await getPayloadClient();
        const result = await payload.find({
          collection: 'services',
          where: {
            and: [{ slug: { equals: slug } }, { status: { equals: 'published' } }],
          },
          limit: 1,
          depth: 2,
        });
        return result.docs[0] as Service | undefined;
      } catch {
        return undefined;
      }
    },
    [`service-${slug}`],
    { tags: ['services', `service-${slug}`], revalidate: false },
  )();
}

// ─── HomePage Global ───────────────────────────────────────────────────────

export const getHomePage = unstable_cache(
  async (): Promise<HomePage | null> => {
    try {
      const payload = await getPayloadClient();
      return await payload.findGlobal({ slug: 'home-page' });
    } catch {
      return null;
    }
  },
  ['homepage'],
  { tags: ['homepage'], revalidate: false },
);

// ─── Testimonials ──────────────────────────────────────────────────────────

export const getFeaturedTestimonials = unstable_cache(
  async (limit = 8): Promise<Testimonial[]> => {
    try {
      const payload = await getPayloadClient();
      const result = await payload.find({
        collection: 'testimonials',
        where: { featured: { equals: true } },
        sort: '-publishedAt',
        limit,
        depth: 0,
      });
      return result.docs as Testimonial[];
    } catch {
      return [];
    }
  },
  ['testimonials-featured'],
  { tags: ['testimonials'], revalidate: false },
);