import { ImageResponse } from "next/og";
import { readFile } from "fs/promises";
import path from "path";
import { prisma } from "@/lib/prisma";
import { wrappedCard } from "@/lib/wrapped-card";
import type { Archetype, Period } from "@/app/(student)/wrapped/_client/types";

export const size = { width: 1080, height: 1920 };
export const contentType = "image/png";
export const dynamic = "force-dynamic";

// Серверный PNG 1080×1920 карточки Wrapped по shareToken (для OG-превью в соцсетях
// и для скачивания участником). Рендерится через next/og (Satori + resvg-wasm).
export default async function OG({ params }: { params: Promise<{ token: string }> }) {
  const { token } = await params;
  const run = await prisma.wrappedRun.findUnique({ where: { shareToken: token } });

  const [reg, med] = await Promise.all([
    readFile(path.join(process.cwd(), "public/fonts/FiraMono-Regular.ttf")),
    readFile(path.join(process.cwd(), "public/fonts/FiraMono-Medium.ttf")),
  ]);

  const data = run
    ? {
        noteCount: run.noteCount,
        linkCount: run.linkCount,
        tagCount: run.tagCount,
        topTag: run.topTag,
        archetype: run.archetype as Archetype | null,
        score: run.score,
        period: run.period as Period,
      }
    : { noteCount: 0, linkCount: 0, tagCount: 0, topTag: null, archetype: null, score: 0, period: "year" as Period };

  return new ImageResponse(wrappedCard(data), {
    ...size,
    fonts: [
      { name: "Fira Mono", data: reg, weight: 400, style: "normal" as const },
      { name: "Fira Mono", data: med, weight: 500, style: "normal" as const },
    ],
  });
}