import { NextRequest, NextResponse } from "next/server";
import { z } from "zod";
import { tmdbFetch, filterAdultMovies } from "@/lib/tmdb/client";
import type { TMDBSearchResponse } from "@/types/tmdb";

const searchParamsSchema = z.object({
  query: z.string().min(1).max(200),
  page: z.coerce.number().int().min(1).max(500).optional().default(1),
});

export async function GET(request: NextRequest) {
  const rawParams = Object.fromEntries(request.nextUrl.searchParams);
  const parsed = searchParamsSchema.safeParse(rawParams);

  if (!parsed.success) {
    return NextResponse.json(
      { error: "Invalid parameters", details: parsed.error.flatten().fieldErrors },
      { status: 400 },
    );
  }

  const { query, page } = parsed.data;

  try {
    const data = await tmdbFetch<TMDBSearchResponse>("/search/movie", {
      query,
      page: String(page),
    });

    return NextResponse.json(filterAdultMovies(data), {
      headers: { "Cache-Control": "public, s-maxage=300, stale-while-revalidate=60" },
    });
  } catch (error) {
    console.error("TMDB search error:", error);
    return NextResponse.json({ error: "Failed to search movies" }, { status: 500 });
  }
}