el.xwx.moe/lib/api/controllers/links/getLinks.ts

import {prisma} from "@/lib/api/db";
import {LinkRequestQuery, Sort} from "@/types/global";

export default async function getLink(userId: number, body: string) {
  const query: LinkRequestQuery = JSON.parse(decodeURIComponent(body));
  console.log(query);

  const POSTGRES_IS_ENABLED = process.env.DATABASE_URL.startsWith("postgresql");
  // Sorting logic
  let order: any;
  if (query.sort === Sort.DateNewestFirst)
    order = {
      createdAt: "desc",
    };
  else if (query.sort === Sort.DateOldestFirst)
    order = {
      createdAt: "asc",
    };
  else if (query.sort === Sort.NameAZ)
    order = {
      name: "asc",
    };
  else if (query.sort === Sort.NameZA)
    order = {
      name: "desc",
    };
  else if (query.sort === Sort.DescriptionAZ)
    order = {
      name: "asc",
    };
  else if (query.sort === Sort.DescriptionZA)
    order = {
      name: "desc",
    };

  const links = await prisma.link.findMany({
    take: Number(process.env.PAGINATION_TAKE_COUNT) || 20,
    skip: query.cursor ? 1 : undefined,
    cursor: query.cursor
      ? {
        id: query.cursor,
      }
      : undefined,
    where: {
      collection: {
        id: query.collectionId ? query.collectionId : undefined, // If collectionId was defined, filter by collection
        OR: [
          {
            ownerId: userId,
          },
          {
            members: {
              some: {
                userId,
              },
            },
          },
        ],
      },
      [query.searchQuery ? "OR" : "AND"]: [
        {
          pinnedBy: query.pinnedOnly ? {some: {id: userId}} : undefined,
        },
        {
          name: {
            contains:
              query.searchQuery && query.searchFilter?.name
                ? query.searchQuery
                : undefined,
            mode: POSTGRES_IS_ENABLED ? "insensitive" : undefined
          },
        },
        {
          url: {
            contains:
              query.searchQuery && query.searchFilter?.url
                ? query.searchQuery
                : undefined,
            mode: POSTGRES_IS_ENABLED ? "insensitive" : undefined
          },
        },
        {
          description: {
            contains:
              query.searchQuery && query.searchFilter?.description
                ? query.searchQuery
                : undefined,
            mode: POSTGRES_IS_ENABLED ? "insensitive" : undefined
          },
        },
        {
          tags:
            query.searchQuery && !query.searchFilter?.tags
              ? undefined
              : {
                some: query.tagId
                  ? {
                    // If tagId was defined, filter by tag
                    id: query.tagId,
                    name:
                      query.searchQuery && query.searchFilter?.tags
                        ? {
                          contains: query.searchQuery,
                          mode: POSTGRES_IS_ENABLED ? "insensitive" : undefined
                        }
                        : undefined,
                    OR: [
                      {ownerId: userId}, // Tags owned by the user
                      {
                        links: {
                          some: {
                            name: {
                              contains:
                                query.searchQuery &&
                                query.searchFilter?.tags
                                  ? query.searchQuery
                                  : undefined,
                              mode: POSTGRES_IS_ENABLED ? "insensitive" : undefined
                            },
                            collection: {
                              members: {
                                some: {
                                  userId, // Tags from collections where the user is a member
                                },
                              },
                            },
                          },
                        },
                      },
                    ],
                  }
                  : undefined,
              },
        },
      ],
    },
    include: {
      tags: true,
      collection: true,
      pinnedBy: {
        where: {id: userId},
        select: {id: true},
      },
    },
    orderBy: order || {
      createdAt: "desc",
    },
  });

  return {response: links, status: 200};
}