import { NextRequest, NextResponse } from "next/server";
import { z } from "zod";
import { db, collections, eq, desc } from "@epicure/db";
import { requireSession } from "@/lib/api-auth";

const Schema = z.object({
  name: z.string().min(1).max(100),
  description: z.string().max(500).optional(),
  isPublic: z.boolean().default(false),
});

export async function GET(_req: NextRequest) {
  const { session, response } = await requireSession();
  if (response) return response;

  const rows = await db.query.collections.findMany({
    where: eq(collections.userId, session!.user.id),
    orderBy: desc(collections.updatedAt),
    with: { recipes: { limit: 4, with: { recipe: { with: { photos: true } } } } },
  });

  return NextResponse.json(rows);
}

export async function POST(req: NextRequest) {
  const { session, response } = await requireSession();
  if (response) return response;

  const body = await req.json() as unknown;
  const parsed = Schema.safeParse(body);
  if (!parsed.success) return NextResponse.json({ error: "Validation error" }, { status: 400 });

  const id = crypto.randomUUID();
  await db.insert(collections).values({
    id,
    userId: session!.user.id,
    name: parsed.data.name,
    description: parsed.data.description,
    isPublic: parsed.data.isPublic,
  });

  return NextResponse.json({ id }, { status: 201 });
}