package cmdn

import (
	"errors"
	"fmt"
	"git.noahlan.cn/noahlan/ntool/ndef"
	"runtime"
	"strings"
)

type PlainSerializer struct {
	sysType string
}

func NewPlainSerializer() ndef.Serializer {
	return &PlainSerializer{
		sysType: runtime.GOOS,
	}
}

func (s *PlainSerializer) Marshal(v interface{}) ([]byte, error) {
	ret, ok := v.(*PlainCommand)
	if !ok {
		return nil, errors.New(fmt.Sprintf("参数类型必须为 %T", PlainCommand{}))
	}
	// ret arg0 arg1 arg2 ...
	// cmd arg0 arg1 arg2 ...
	sb := strings.Builder{}
	if ret.ID != "" {
		sb.WriteString(ret.ID)
		sb.WriteString(" ")
	}
	sb.WriteString(ret.Cmd)
	sb.WriteString(" ")
	sb.WriteString(strings.Join(ret.Args, " "))
	return []byte(sb.String()), nil
}

func (s *PlainSerializer) Unmarshal(data []byte, v interface{}) error {
	t, ok := v.(*PlainResp)
	if !ok {
		return errors.New(fmt.Sprintf("参数类型必须为 %T", PlainResp{}))
	}
	t.ID = ""
	//t.Command
	t.Result = string(data)
	return nil
}