package ansible

import (
	"github.com/ouqiang/cron-scheduler/models"
	"sync"
	"io/ioutil"
	"bytes"
	"strconv"
	"github.com/ouqiang/cron-scheduler/modules/utils"
)

// 主机名
var DefaultHosts *Hosts

type Hosts struct {
	sync.RWMutex
	filename string
}

func NewHosts(hostFilename string) *Hosts  {
	h := &Hosts{sync.RWMutex{}, hostFilename}
	h.Write()

	return h
}

// 获取hosts文件名
func(h *Hosts) GetFilename() string {
	h.RLock()
	defer h.RUnlock()

	return h.filename
}


// 写入hosts
func(h *Hosts) Write() {
	host := new(models.Host)
	hostModels, err := host.List()
	if err != nil {
		utils.RecordLog(err)
		return
	}
	if len(hostModels) == 0 {
		utils.RecordLog("hosts内容为空")
		return
	}
	buffer := bytes.Buffer{}
	for _, hostModel := range(hostModels) {
		buffer.WriteString(strconv.Itoa(int(hostModel.Id)))
		buffer.WriteString(" ansible_ssh_host=")
		buffer.WriteString(hostModel.Name)
		buffer.WriteString(" ansible_ssh_port=")
		buffer.WriteString(strconv.Itoa(hostModel.Port))
		buffer.WriteString(" ansible_ssh_user=")
		buffer.WriteString(hostModel.Username)
		if (hostModel.LoginType != models.PublicKey && hostModel.Password != "") {
			buffer.WriteString(" ansible_ssh_pass=")
			buffer.WriteString(hostModel.Password)
		}
		buffer.WriteString("\n")
	}
	h.Lock()
	defer h.Unlock()
	err = ioutil.WriteFile(h.filename, buffer.Bytes(), 0644)

	return
}