package oss

import (
	ossDomain "erpims/application/domain/oss"
	"erpims/config"
	"erpims/utils"
	"errors"
	"git.sxidc.com/service-supports/fslog"
	"github.com/aliyun/aliyun-oss-go-sdk/oss"
	"io"
	"strings"
)

var bkt *oss.Bucket
var pfx string

func Init(endpoint, keyID, keySecret, prefix string) error {
	pfx = prefix

	client, err := oss.New(endpoint, keyID, keySecret)
	if err != nil {
		return err
	}

	bkt, err = client.Bucket("fs-yf")
	if err != nil {
		return err
	}

	return nil
}

func Touch(reader io.Reader, to string) error {
	if reader == nil || utils.HasBlank(to) {
		fslog.Warn("oss上传发现违规参数")
		return nil
	}

	return bkt.PutObject(pfx+to, reader)
}

func Url(obj string) (string, error) {
	if utils.HasBlank(obj) {
		fslog.Warn("oss获取Url发现违规参数")
		return "", nil
	}

	return bkt.SignURL(pfx+obj, oss.HTTPGet, 60)
}

func UrlWithoutPrefix(obj string) (string, error) {
	if utils.HasBlank(obj) {
		fslog.Warn("oss获取Url发现违规参数")
		return "", nil
	}

	return bkt.SignURL(obj, oss.HTTPGet, 60)
}

func ZoomUrl(obj, s string) (string, error) {
	if utils.HasBlank(obj) {
		fslog.Warn("oss发现违规参数")
		return "", nil
	}
	return bkt.SignURL(pfx+obj, oss.HTTPGet, 60, oss.Process(s))
}

func Exist(obj string) (bool, error) {
	if utils.HasBlank(obj) {
		return false, nil
	}

	return bkt.IsObjectExist(pfx + obj)
}

func ExistWithoutPrefix(obj string) (bool, error) {
	if utils.HasBlank(obj) {
		return false, nil
	}

	return bkt.IsObjectExist(obj)
}

func Rm(objs ...string) error {
	L := len(objs)
	if L == 0 {
		return nil
	}

	result, err := bkt.DeleteObjects(objs)
	if err != nil {
		return err
	}

	if len(result.DeletedObjects) != L {
		go func() {
			// 日志打印哪些Obj删除失败
			sucMap := make(map[string]struct{}, len(result.DeletedObjects))
			for _, deleted := range result.DeletedObjects {
				sucMap[deleted] = struct{}{}
			}

			for _, obj := range objs {
				if _, ok := sucMap[obj]; !ok {
					fslog.Warn("Oss删除%s图片失败")
				}
			}
		}()
	}

	return nil
}

func Ls(dir string) ([]string, error) {
	if utils.HasBlank(dir) {
		return []string{}, nil
	}

	v2, err := bkt.ListObjectsV2(oss.Prefix(pfx + dir))
	if err != nil {
		return nil, err
	}

	ks := make([]string, len(v2.Objects))
	for i, obj := range v2.Objects {
		ks[i] = obj.Key
	}

	return ks, nil
}

func Mv(f, t string) error {
	if err := Cp(f, t); err != nil {
		return err
	}

	return bkt.DeleteObject(pfx + f)
}

func Cp(f, t string) error {
	_, err := bkt.CopyObject(pfx+f, pfx+t)
	if err != nil {
		return err
	}
	return nil
}

func MvWithoutPrefix(f, t string) error {
	if _, err := bkt.CopyObject(f, t); err != nil {
		return err
	}

	return bkt.DeleteObject(f)
}

func MultipleFileMv(filePath string) (string, error) {
	endPicture := make([]string, 0)
	files := strings.Split(filePath, ",")
	for _, file := range files {
		//文件名
		tmpFx := config.GetConfig().OssConfig.TmpPrefix
		if utils.HasText(file) && strings.Contains(file, "/temp/") {
			fileName, found := strings.CutPrefix(file, tmpFx)
			if !found {
				return "", errors.New("文件名处理失败")
			}
			err := MvWithoutPrefix(file, pfx+fileName)
			if err != nil {
				return "", errors.New("文件移动失败")
			}
			endPicture = append(endPicture, pfx+fileName)
			continue
		}
		endPicture = append(endPicture, file)
	}
	return strings.Join(endPicture, ","), nil
}

func MultipleFileUrl(filePath string) ([]ossDomain.FileObject, error) {
	filePathArr := strings.Split(filePath, ",")
	picture := make([]ossDomain.FileObject, 0)
	for _, file := range filePathArr {

		exist, err := ExistWithoutPrefix(file)
		if err != nil {
			fslog.Error(err)
			picture = append(picture, ossDomain.FileObject{
				Url:  file,
				Temp: "",
			})
			continue
		}
		if !exist {
			fslog.Error("文件【" + file + "】不存在")
			picture = append(picture, ossDomain.FileObject{
				Url:  file,
				Temp: "",
			})
			continue
		}
		url, err := UrlWithoutPrefix(file)
		if err != nil {
			fslog.Error("文件【" + file + "】链接生成失败")
			picture = append(picture, ossDomain.FileObject{
				Url:  file,
				Temp: "",
			})
			continue
		}
		name, _ := strings.CutPrefix(file, pfx+"/")
		picture = append(picture, ossDomain.FileObject{
			Url:  file,
			Name: name,
			Temp: url,
		})
	}
	return picture, nil
}