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

export async function GET() {
  try {
    const results = await prisma.lead.findMany({
      where: { sourceTerm: { not: null } },
      select: { sourceTerm: true },
      distinct: ["sourceTerm"],
      orderBy: { sourceTerm: "asc" },
    });

    const terms = results
      .map(r => r.sourceTerm!)
      .filter(Boolean)
      .sort();

    return NextResponse.json(terms);
  } catch (err) {
    console.error("GET /api/leads/search-terms error:", err);
    return NextResponse.json([], { status: 500 });
  }
}