package stat

import (
	"bufio"
	"io"
	"strings"
)

type MemStat struct {
}

//func (mem MemStat) Command() string {
//	return "cat /proc/meminfo"
//}

func (mem MemStat) Read(r io.Reader) (map[string]string, error) {
	var (
		stats   = map[string]string{}
		scanner = bufio.NewScanner(r)
	)

	for scanner.Scan() {
		line := scanner.Text()
		parts := strings.Fields(line)
		key := parts[0][:len(parts[0])-1]

		stats[key] = parts[1]
	}

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

	return stats, scanner.Err()
}
//
//func (mem MemStat) parse(keys []string, data map[string]string) (map[string]string, error) {
//	resMap := make(map[string]string)
//
//	for _, key := range keys  {
//		switch key {
//		case "mem.usage.total":
//			resMap[key] = data["MemTotal"]
//		case "mem.usage.free":
//			resMap[key] = data["MemFree"]
//		case "mem.usage.available":
//			resMap[key] = data["MemAvailable"]
//		case "mem.usage.buffers":
//			resMap[key] = data["Buffers"]
//		case "mem.usage.cached":
//			resMap[key] = data["Cached"]
//		case "mem.swap.usage.total":
//			resMap[key] = data["SwapTotal"]
//		case "mem.swap.usage.free":
//			resMap[key] = data["SwapFree"]
//		case "mem.swap.usage.cached":
//			resMap[key] = data["SwapCached"]
//		default:
//
//		}
//	}
//
//	return resMap, nil
//}