//go:generate rsrc -ico resource/icon.ico -manifest resource/info.manifest -o main.syso
package main

import (
	"bytes"
	"io"
	"io/ioutil"
	"mime/multipart"
	"net/http"
	"os"
	"time"
	"path"
	"strings"
	"zsyy-upload/logger"
	"github.com/spf13/viper"
)

var config *viper.Viper;

func main() {
	config = viper.New()
	config.SetConfigFile("./config/settings.yaml")
	config.ReadInConfig()

	sleeptime := config.GetInt("settings.sleeptime")
	
	logger.Init()

	i := 1
	for i<10 {
		postFormDataWithMultipartFile()
		time.Sleep(time.Second * time.Duration(sleeptime))
	}
	
}

func readDir(dirname string) ([]string, error) {
	infos, err := ioutil.ReadDir(dirname)
	if err != nil {
		logger.Info("file read Error!")
		logger.Errorf("%s", err)
		return nil, err
	}

	// names := make([]string, len(infos))
	var names []string
	for _, info := range infos {
		fileType := path.Ext(info.Name())
		if len(fileType) != 0 {
			fileType = strings.ToLower(fileType)
			if fileType == ".pdf" {
				names = append(names, info.Name())
			}
		}

		// names[i] = info.Name()
	}

	return names, nil
}

func remove(file string) {
	err := os.Remove(file) //删除文件test.txt
	if err != nil {
		//如果删除失败则输出 file remove Error!
		logger.Errorf("file remove Error!", err)
	} else {
		//如果删除成功则输出 file remove OK!
		logger.Infof("file remove OK!", file)
	}
}

func postFormDataWithMultipartFile() {
	logger.Info("=======start========")

	postURL := config.GetString("postURL")
	pdfPath := config.GetString("pdfPath")
	// postURL := "http://localhost:8080/api/tpsUpload"
	logger.Info("load yml postURL: ", postURL)
	logger.Info("load yml pdfPath: ", pdfPath)

	fileNames, _ := readDir(pdfPath)
	if(fileNames == nil || len(fileNames) == 0){
		logger.Info("读取文件为空")
		return
	}
	logger.Infof("fileNames==",fileNames)

	defer func() {
		for _, val := range fileNames {
			remove(pdfPath + val)
		}
	}()

	client := http.Client{}
	bodyBuf := &bytes.Buffer{}
	bodyWrite := multipart.NewWriter(bodyBuf)
	for _, val := range fileNames {
		file, err := os.Open(pdfPath + val)
		if err != nil {
			logger.Info("err1")
			logger.Errorf("%s", err)
		}
		defer file.Close()
		fileWrite, _ := bodyWrite.CreateFormFile("files", val)
		_, err = io.Copy(fileWrite, file)
		if err != nil {
			logger.Info("err2")
			logger.Errorf("%s", err)
		}
	}
	bodyWrite.Close() //要关闭，会将w.w.boundary刷写到w.writer中

	// 创建请求
	req, err := http.NewRequest(http.MethodPost, postURL, bodyBuf)
	if err != nil {
		logger.Info("err3")
		logger.Errorf("%s", err)
	}
	// 设置头
	contentType := bodyWrite.FormDataContentType()
	req.Header.Set("Content-Type", contentType)
	resp, err := client.Do(req)
	if err != nil {
		logger.Info("err4")
		logger.Errorf("%s", err)
	}

	defer resp.Body.Close()
	// defer req.Body.Close()

	b, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		logger.Info("err5")
		logger.Errorf("%s", err)
	}
	logger.Info(string(b))

	// client.CloseIdleConnections()

	logger.Info("=======end=======")
}