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

export async function GET(req: NextRequest) {
  try {
    const { searchParams } = new URL(req.url);
    const mode = searchParams.get("mode") || "";

    const where = mode ? { searchMode: mode } : {};

    const history = await prisma.searchHistory.findMany({
      where,
      orderBy: { executedAt: "desc" },
      take: 50,
      select: { query: true, region: true, searchMode: true, executedAt: true },
    });

    return NextResponse.json(history);
  } catch (err) {
    console.error("GET /api/search-history error:", err);
    return NextResponse.json({ error: "Failed to fetch search history" }, { status: 500 });
  }
}

export async function POST(req: NextRequest) {
  try {
    const body = await req.json() as { query: string; region: string; searchMode: string };
    const { query, region, searchMode } = body;

    if (!query?.trim() || !searchMode?.trim()) {
      return NextResponse.json({ error: "query und searchMode sind erforderlich" }, { status: 400 });
    }

    const entry = await prisma.searchHistory.create({
      data: {
        query: query.trim(),
        region: (region || "").trim(),
        searchMode: searchMode.trim(),
      },
    });

    return NextResponse.json(entry);
  } catch (err) {
    console.error("POST /api/search-history error:", err);
    return NextResponse.json({ error: "Failed to save search history" }, { status: 500 });
  }
}