import { apiJson } from "@/lib/api";
import { prisma } from "@/lib/prisma";

// Latest 50 radio shouts with their author's username/look resolved. Mirrors the
// query behind the public /radio/shouts page (radio_shouts ordered by created_at
// desc, then joined to users by user_id).
export const dynamic = "force-dynamic";

export async function GET(_req: Request) {
  try {
    const shouts = await prisma.radioShouts.findMany({
      orderBy: { createdAt: "desc" },
      take: 50,
    });

    // Resolve author usernames/looks. radio_shouts.user_id is an UnsignedBigInt
    // while users.id is an Int, so narrow to Number for the lookup.
    const authorIds = Array.from(new Set(shouts.map((s) => Number(s.userId))));
    const authors = authorIds.length
      ? await prisma.user.findMany({
          where: { id: { in: authorIds } },
          select: { id: true, username: true, look: true },
        })
      : [];
    const authorById = new Map(authors.map((a) => [a.id, a]));

    const data = shouts.map((s) => {
      const author = authorById.get(Number(s.userId));
      return {
        id: s.id,
        userId: s.userId,
        username: author?.username ?? null,
        look: author?.look ?? null,
        message: s.message,
        createdAt: s.createdAt,
      };
    });

    return apiJson({ shouts: data });
  } catch {
    // DB unavailable — serve an empty list rather than a 500.
    return apiJson({ shouts: [] }, { status: 200 });
  }
}