import { NextResponse } from "next/server"
import { requirePhoneAgentInternalAuth } from "@/app/api/internal/phone-calls/shared"
import { searchServiceKnowledge } from "@/lib/service-knowledge"

export async function POST(request: Request) {
  const authError = await requirePhoneAgentInternalAuth(request)
  if (authError) {
    return authError
  }

  try {
    const body = await request.json()
    const query = String(body.query || "").trim()
    if (!query) {
      return NextResponse.json({ error: "query is required" }, { status: 400 })
    }

    const results = await searchServiceKnowledge({
      query,
      limit:
        typeof body.limit === "number" && body.limit > 0
          ? Math.min(body.limit, 6)
          : 4,
    })

    return NextResponse.json({
      success: true,
      results,
    })
  } catch (error) {
    console.error("Failed to search phone agent service knowledge:", error)
    return NextResponse.json(
      { error: "Failed to search phone agent service knowledge" },
      { status: 500 }
    )
  }
}