package core

import (
	"encoding/json"
	"fmt"
	"net/http"
	"net/rpc/jsonrpc"
	"runtime"
)

type Dtm struct {
	TotalAlloc string `json:"total_alloc"`
	Alloc      string `json:"alloc"`
}

// for rpc
type Args struct {
	FilePath string
}

// 返回的参数
type Reply struct {
	FilePath string `json:"file_path"`
}

// 获取内存信息
func Dtmem(w http.ResponseWriter, r *http.Request) {
	var m runtime.MemStats
	runtime.ReadMemStats(&m)

	// 测试JSONRPC
	service := "192.168.66.212:9098"
	client, err := jsonrpc.Dial("tcp", service)
	if err != nil {
		fmt.Fprintf(w, "jsonrpc dial faild %v", err)
		return
	}
	// 调用远程方法
	var reply string
	var args = Args{"/www"}
	err = client.Call("FileRpcService.GetFilePath", args, &reply)
	if err != nil {
		fmt.Fprintf(w, "jsonrpc call faild %v", err)
		return
	}
	// 打印返回值
	fmt.Fprintf(w, "jsonrpc call success, reply: %d", reply)

	// 内存动态
	dtm := Dtm{
		TotalAlloc: fmt.Sprintf("%d", m.TotalAlloc),

		Alloc: fmt.Sprintf("%v MB", m.Alloc/1024),
	}

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(dtm)

	//
	// jsonobj, err := json.Marshal(m)
	// if err != nil {
	// 	fmt.Fprintf(w, "json marshal faild %v", err)
	// 	return
	// }

	// fmt.Fprintf(w, "%s", jsonobj)

	// 	usage:=m.TotalAlloc/1024/1024
	// 	free:=m.Free/1024/1024

	// 	//
	// 	fmt.Fprintf("总分配内存: %v MB\n", m.TotalAlloc/1024/1024)
	// 	fmt.Fprintf("已分配内存: %v MB\n", m.Alloc/1024/1024)
}