package api

import (
	"bytes"
	"crypto/md5"
	"encoding/hex"
	"fmt"
	"github.com/aliyun/aliyun-oss-go-sdk/oss"
	ctxLogger "github.com/luizsuper/ctxLoggers"
	"go.uber.org/zap"
	"io"
	"io/ioutil"
	"net/http"
	"os"
	"strconv"
	"strings"
	"time"
)

type DetailInfoUrls struct {
	ID         int    `json:"id" gorm:"column:id"`
	Image      string `json:"image" gorm:"column:image"`
	Cover      string `json:"cover" gorm:"column:cover"`
	Mycover    string `json:"mycover" gorm:"column:mycover"`
	Myimage    string `json:"myimage" gorm:"column:myimage"`
	Sid        string `json:"sid" gorm:"column:sid"`
	Sname      string `json:"sname" gorm:"column:sname"`
	Done       int    `json:"done" gorm:"column:done"`
	ErrorInfo  string `json:"errinfo" gorm:"column:errinfo"`
	ErrorImage string `json:"errorimage" gorm:"column:errorimage"`
}

func (m *DetailInfoUrls) TableName() string {
	return "detail_info_urls"
}

type Error struct {
	Sid        string    `json:"sid" gorm:"column:sid"`
	ID         int       `json:"id" gorm:"column:id"`
	Url        string    `json:"url" gorm:"column:url"`
	Type       int       `json:"type" gorm:"column:type"`
	Msg        string    `json:"msg" gorm:"column:msg"`
	CreateTime time.Time `json:"create_time" gorm:"column:create_time"`
}

func (m *Error) TableName() string {
	return "error"
}

const EndPoint = `oss-cn-hangzhou.aliyuncs.com`

func s(name, url string) error {
	// 创建OSSClient实例。
	client, err := oss.New(EndPoint, "LTAI5tJHzAYoXL7ZNrZwKGoz", "QfL9kWUOMiswz7dk4PbTEy4jukm5YD")
	if err != nil {
		ctxLogger.Error(nil, "create oss client err", zap.String("err reason", err.Error()))
		return err
	}

	// 获取存储空间。
	bucket, err := client.Bucket("ganesh-pic")
	if err != nil {
		ctxLogger.Error(nil, "get bucket err", zap.String("err reason", err.Error()))
		return err
	}

	picBytes, err := getPic(url)
	if err != nil {
		ctxLogger.Error(nil, "get bucket err", zap.String("err reason", err.Error()))
		return err
	}

	err = bucket.PutObject(name, bytes.NewReader(picBytes))
	if err != nil {
		ctxLogger.Error(nil, "get bucket err", zap.String("err reason", err.Error()))
		return err
	}
	return nil
}

func getPic(url string) ([]byte, error) {
	client := &http.Client{}
	req, err := http.NewRequest("GET", url, nil)
	if err != nil {
		return nil, err
	}
	resp, err := client.Do(req)
	defer func(Body io.ReadCloser) {
		err := Body.Close()
		if err != nil {
			ctxLogger.Error(nil, "net body close error", zap.String("errReason", err.Error()))
		}
	}(resp.Body)
	return ioutil.ReadAll(resp.Body)
}

func k(start, end int) {
	const (
		coverSuffix   = `wujian`
		contentSuffix = `content`
		coverType     = 0
		contentType   = 1
		other         = 2
	)
	//错误次数，等于30退出程序
	errNum := 0
	//数据源
	d := new([]DetailInfoUrls)
	//给图片进行md5加密
	md5Name := func(name string) string {
		h := md5.New()
		h.Write([]byte(name))
		return hex.EncodeToString(h.Sum(nil))
	}
	//insetError
	insertErr := func(sid, url, msg string, types int) {
		DB.Create(&Error{
			Sid:  sid,
			Url:  url,
			Type: types,
			Msg:  msg,
		})
		errNum++
	}
	if err := DB.Where("id >= ? and id <= ?", start, end).Find(d).Error; err != nil {
		if errNum == 100 {
			os.Exit(0)
		}
		insertErr("999", "", err.Error(), other)
	}
	for _, v := range *d {
		myContent := ``
		if errNum == 100 {
			os.Exit(0)
		}
		md5Cover := md5Name(v.Sname + coverSuffix)
		if err := s(md5Cover, v.Cover); err != nil {
			insertErr(v.Sid, v.Cover, err.Error(), coverType)
		}
		if spilt := strings.Split(v.Image, `@`); len(spilt) != 0 {
			for k, contentUrl := range spilt {
				md5Content := md5Name(v.Sname + contentSuffix + strconv.Itoa(k))
				if err := s(md5Content, contentUrl); err == nil {
					myContent = fmt.Sprintf("%v%v@", myContent, md5Content)
				} else {
					insertErr(v.Sid, contentUrl, err.Error(), contentType)
				}
			}
			v.Myimage = myContent
		} else {
			insertErr(v.Sid, v.Image, "split len ==0", other)
		}
		DB.Debug().Model(&v).Updates(DetailInfoUrls{Done: 1, Mycover: md5Cover, Myimage: string([]byte(myContent)[0 : len([]byte(myContent))-1])})

	}
}