// app/api/watch-history/route.ts
import { NextResponse } from 'next/server';
import { getServerSession } from 'next-auth';
import { authOptions } from '@/lib/auth-options';
import { prisma } from '@/lib/prisma';

export async function GET(req: Request) {
  try {
    const session = await getServerSession(authOptions);
    if (!session?.user?.email)
      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });

    const userEmail = session.user.email;

    const user = await prisma.user.findUnique({ where: { email: userEmail } });
    if (!user)
      return NextResponse.json({ error: 'user not found' }, { status: 404 });

    // Fetch all videos watched by user, sorted by most recently updated
    const watchHistory = await prisma.videoProgress.findMany({
      where: { userId: user.id },
      include: {
        video: {
          select: {
            id: true,
            title: true,
            thumbnail: true,
            durationSec: true,
            url: true,
          },
        },
      },
      orderBy: { updatedAt: 'desc' },
    });

    return NextResponse.json(watchHistory);
  } catch (err: any) {
    console.error('watch history GET error', err);
    return NextResponse.json(
      { error: err?.message ?? 'server error' },
      { status: 500 }
    );
  }
}