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')