import { NextResponse } from "next/server";

export class ApiError extends Error {
  constructor(
    public status: number,
    message: string
  ) {
    super(message);
    this.name = "ApiError";
  }
}

export function apiSuccess<T>(data: T, status = 200) {
  return NextResponse.json({ success: true, data }, { status });
}

export function apiError(error: unknown) {
  if (error instanceof ApiError) {
    return NextResponse.json(
      { success: false, error: error.message },
      { status: error.status }
    );
  }
  const message =
    error instanceof Error ? error.message : "Internal server error";
  console.error("[API]", error);
  return NextResponse.json({ success: false, error: message }, { status: 500 });
}

export async function parseJson<T>(request: Request): Promise<T> {
  try {
    return (await request.json()) as T;
  } catch {
    throw new ApiError(400, "Invalid JSON body");
  }
}