package stat

import (
	"bufio"
	"io"
	"strings"



)
//
type CPUStat struct {
	//Device,
	//User,
	//Nice,
	//System,
	//Idle,
	//Iowait,
	//Irq,
	//SoftIrq,
	//Steal, // (over 2.6.11)
	//Guest, // (over 2.6.24)
	//GuestNice, //(over 2.6.33)
	//Sum int64
}

//func (cpu CPUStat) Command() string {
//	return "cat /proc/stat"
//}

func (cpu CPUStat) Read(r io.Reader) (map[string]string, error) {
	var (
		//stats = []CPUStat{}
		scanner  = bufio.NewScanner(r)
	)
	resMap := make(map[string]string)

	for scanner.Scan() {
		line := scanner.Text()
		parts := strings.Fields(line)
		if !strings.HasPrefix(parts[0], "cpu") {
			continue
		}

		//var steal, guest, guestNice int64
		//if len(parts) > 8 {
		//	steal = util.StringToInt64(parts[8])
		//}
		//if len(parts) > 9 {
		//	guest = util.StringToInt64(parts[9])
		//}
		//if len(parts) > 10 {
		//	guestNice = util.StringToInt64(parts[10])
		//}


		//stats = append(stats, CPUStat{
		//Device :=    util.StringToInt64(parts[0])
		//User :=      util.StringToInt64(parts[1])
		//Nice :=      util.StringToInt64(parts[2])
		//System :=    util.StringToInt64(parts[3])
		//Idle :=      util.StringToInt64(parts[4])
		//Iowait :=    util.StringToInt64(parts[5])
		//Irq :=       util.StringToInt64(parts[6])
		//SoftIrq :=   util.StringToInt64(parts[7])
		//Steal :=     steal
		//Guest :=     guest
		//GuestNice := guestNice
		//})

		//sum := User + Nice + System + Idle + Iowait + Irq + SoftIrq + Steal + Guest + GuestNice
		//resMap["sum"] = strconv.FormatInt(sum, 10)
		resMap["user"] = parts[1]
		resMap["nice"] = parts[2]
		resMap["system"] = parts[3]
		//resMap["idle"] = parts[4]
		resMap["iowait"] = parts[5]
		resMap["irq"] = parts[6]
		resMap["softIrq"] = parts[7]
		resMap["steal"] = parts[8]
		resMap["guest"] = parts[9]
		resMap["gnice"] = parts[10]

		break // first line only --- cpu
	}

	//res, err := cpu.parse(keys, stats)
	//if err != nil {
	//	return nil, err
	//}

	return resMap, scanner.Err()
}
//
//func (cpu CPUStat) parse(keys []string, data []CPUStat) (map[string]string, error) {
//	resMap := make(map[string]string)
//
//	for _, key := range keys  {
//		resMap[key] = cpu.calc(key, data[0])
//	}
//
//	return resMap, nil
//}
//
//func (cpu CPUStat) calc(key string, d CPUStat) string {
//	var value int64 = 0
//	sum := d.User + d.Nice + d.System + d.Idle + d.Iowait + d.Irq + d.SoftIrq + d.Steal + d.Guest + d.GuestNice
//	switch key {
//	case "cpu.usage.sum":
//		value = sum
//	case "cpu.usage.user":
//		value = d.User
//	case "cpu.usage.nice":
//		value = d.Nice
//	case "cpu.usage.system":
//		value = d.System
//	case "cpu.usage.idle":
//		value = d.Idle
//	case "cpu.usage.iowait":
//		value = d.Iowait
//	case "cpu.usage.irq":
//		value = d.Irq
//	case "cpu.usage.softirq":
//		value = d.SoftIrq
//	case "cpu.usage.steal":
//		value = d.Steal
//	case "cpu.usage.guest":
//		value = d.Guest
//	case "cpu.usage.gnice":
//		value = d.GuestNice
//	default:
//
//	}
//	return strconv.FormatInt(value, 10)
//}