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

export async function GET(req: NextRequest) {
  const session = await auth();
  if (!session?.user) {
    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
  }

  const projectId = req.nextUrl.searchParams.get("projectId");
  if (!projectId) {
    return NextResponse.json({ error: "projectId required" }, { status: 400 });
  }

  const shots = await db.shot.findMany({
    where: {
      projectId,
      versions: {
        some: {
          shotId: { not: null },
          mimeType: { startsWith: "video/" },
        },
      },
    },
    orderBy: [{ episode: "asc" }, { scene: "asc" }, { shotNumber: "asc" }],
    select: {
      id: true,
      shotCode: true,
      episode: true,
      status: true,
      thumbnailUrl: true,
      versions: {
        where: {
          isLatest: true,
          mimeType: { startsWith: "video/" },
        },
        take: 1,
        select: {
          id: true,
          versionNumber: true,
          fileUrl: true,
          thumbnailUrl: true,
          posterUrl: true,
          fps: true,
          approvalStatus: true,
        },
      },
    },
  });

  // Only return shots that actually have a latest video version
  const playlist = shots
    .map((shot) => ({
      id: shot.id,
      shotCode: shot.shotCode,
      episode: shot.episode,
      status: shot.status,
      thumbnailUrl: shot.thumbnailUrl,
      latestVersion: shot.versions[0] ?? null,
    }))
    .filter((shot) => shot.latestVersion !== null);

  return NextResponse.json({ shots: playlist });
}