import { NextRequest, NextResponse } from "next/server";
import { auth } from "@/auth";
import { db } from "@/lib/db";

/** GET /api/projects/[projectId]/episodes — returns distinct episode values for shots in a project */
export async function GET(
  _req: NextRequest,
  { params }: { params: Promise<{ projectId: string }> }
) {
  const session = await auth();
  if (!session?.user) {
    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
  }

  const { projectId } = await params;

  const shots = await db.shot.findMany({
    where: { projectId, episode: { not: null } },
    select: { episode: true },
    distinct: ["episode"],
    orderBy: { episode: "asc" },
  });

  const episodes = shots
    .map((s) => s.episode as string)
    .filter(Boolean);

  return NextResponse.json({ episodes });
}