/*
*
webdav上传
*/
package main

import (
	"flag"
	"fmt"
	"io/ioutil"
	"log"
	"os"
	"strconv"

	"github.com/studio-b12/gowebdav"
)

var (
	davurl            = flag.String("dav", "https://cloudreve.jydev.jianyu360.com/dav", "dav地址")
	user              = flag.String("user", "jichunling@topnet.net.cn", "用户")
	password          = flag.String("password", "imq6aZfwvWdu9XRsd368uywaalD5Jgwf", "密码")
	localdir          = flag.String("local", "./attaches", "本地目录")
	remotedir         = flag.String("remote", "/%s/北京/东城区/政府", "远程目录")
	limitMiniFileSize = flag.Int64("minisize", 1024, "最小文件大小,不小于1Kb")
	client            *gowebdav.Client
)

// init
func init() {
	flag.Parse()
	client = gowebdav.NewAuthClient(*davurl, gowebdav.NewAutoAuth(*user, *password))
	err := client.Connect()
	if err != nil {
		log.Fatal(err)
	}
}

// main
func main() {
	//TODO 遍历目录
	years := []string{"2022", "2023", "2024"}
	for _, y := range years {
		//建立远程目录
		rdir := fmt.Sprintf(*remotedir, y+"年")
		log.Println("上传到远端目录:", rdir)
		if _, err := client.Stat(rdir); err != nil {
			if err = client.MkdirAll(rdir, 0644); err != nil {
				log.Fatal(err)
			}
		}
		//遍历目录
		fs, err := ioutil.ReadDir(*localdir)
		if err != nil {
			log.Fatal(err)
		}
		for _, f := range fs {
			prefix := f.Name()[:4]
			if _, err := strconv.Atoi(prefix); err == nil &&
				prefix == y {
				log.Println(f.Name())
				//上传文件
				localFilePath := fmt.Sprintf("%s/%s", *localdir, f.Name())
				remoteFilePath := fmt.Sprintf("%s/%s", rdir, f.Name())
				//TODO 检查文件大小
				if fi, err := os.Stat(localFilePath); err == nil && fi.Size() <= *limitMiniFileSize {
					log.Println("\t 文件太小：", fi.Size())
					os.Remove(localFilePath)
				} else if err != nil {
					log.Println("\t error： ", err.Error())
					os.Remove(localFilePath)
					continue
				}

				fi, err := os.Open(localFilePath)
				if err != nil {
					log.Println(err.Error())
					continue
				}
				if err = client.WriteStream(remoteFilePath, fi, 0644); err != nil {
					log.Println(err.Error())
					continue
				} else {
					os.Remove(localFilePath)
				}
			}
		}
	}
	log.Println("所有文件上传完毕")
}