import {
  FastifyInstance,
  FastifyPluginAsync,
  FastifyReply,
  FastifyRequest,
} from "fastify";
import fastifyPlugin from "fastify-plugin";

/**
 * 将post 和 get 的参数统一到 req.params
 */
declare module "fastify" {
  interface FastifyInstance {
    zReqParser: (request: FastifyRequest, reply: FastifyReply) => {};
  }
}
const zReqParserPlugin: FastifyPluginAsync = async function (
  fastify: FastifyInstance,
  options?: any
) {
  fastify.addHook(
    "preValidation",
    async (request: FastifyRequest, reply: FastifyReply) => {
      let params = request.params || {};
      if (request.query) {
        Object.assign(params, request.query);
      }
      if (request.body) {
        Object.assign(params, request.body);
      }
      request.params = params;
    }
  );
  return;
};

export default fastifyPlugin(zReqParserPlugin, "4.x");