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

export const maxDuration = 120;

/** POST /api/shots/[shotId]/highres — upload a high-res file to Hetzner */
export async function POST(
  req: NextRequest,
  { params }: { params: Promise<{ shotId: string }> }
) {
  const session = await auth();
  if (!session?.user) {
    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
  }

  const { shotId } = await params;

  const shot = await db.shot.findUnique({
    where: { id: shotId },
    select: { id: true, highResKey: true },
  });
  if (!shot) {
    return NextResponse.json({ error: "Shot not found" }, { status: 404 });
  }

  const formData = await req.formData();
  const file = formData.get("file") as File | null;

  if (!file) {
    return NextResponse.json({ error: "No file provided" }, { status: 400 });
  }

  if (!file.type.startsWith("video/")) {
    return NextResponse.json({ error: "Only video files are accepted" }, { status: 400 });
  }

  // Remove previous high-res file if one exists
  if (shot.highResKey) {
    await deleteFromHetzner(shot.highResKey).catch(() => {});
  }

  const buffer = Buffer.from(await file.arrayBuffer());
  const { key } = await uploadToHetzner(buffer, file.name, file.type, "highres");

  await db.shot.update({
    where: { id: shotId },
    data: { highResKey: key, highResFilename: file.name },
  });

  return NextResponse.json({ success: true, filename: file.name });
}

/** DELETE /api/shots/[shotId]/highres — remove the high-res file */
export async function DELETE(
  req: NextRequest,
  { params }: { params: Promise<{ shotId: string }> }
) {
  const session = await auth();
  if (!session?.user) {
    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
  }

  const { shotId } = await params;

  const shot = await db.shot.findUnique({
    where: { id: shotId },
    select: { id: true, highResKey: true },
  });
  if (!shot) {
    return NextResponse.json({ error: "Shot not found" }, { status: 404 });
  }

  if (shot.highResKey) {
    await deleteFromHetzner(shot.highResKey).catch(() => {});
  }

  await db.shot.update({
    where: { id: shotId },
    data: { highResKey: null, highResFilename: null },
  });

  return NextResponse.json({ success: true });
}