package services

import (
	"context"
	"errors"
	"eta/eta_mini_crm/utils"
	"fmt"
	"log"
	"time"

	"github.com/minio/minio-go/v7"
	"github.com/minio/minio-go/v7/pkg/credentials"
)

type MinioOss struct{}

// UploadFile 上传文件
func (m *MinioOss) UploadFile(fileName, filePath, savePath string) (string, error) {
	if utils.MinIoAccessKeyId == `` || utils.MinIoAccessKeySecret == `` {
		return "0", errors.New("MinIo信息未配置")
	}

	ctx := context.Background()
	// 此处兼容一下前后端endpoint不一致的情况, 前端用minio_endpoint后端用minio_back_endpoint, minio_back_endpoint为空则都取前者
	endpoint := utils.MinIoEndpoint
	if utils.MinIoBackEndpoint != "" {
		endpoint = utils.MinIoBackEndpoint
	}
	accessKeyID := utils.MinIoAccessKeyId
	secretAccessKey := utils.MinIoAccessKeySecret
	useSSL := false
	if utils.MinIoUseSSL == "true" {
		useSSL = true
	}
	minioClient, err := minio.New(endpoint, &minio.Options{
		Creds:  credentials.NewStaticV4(accessKeyID, secretAccessKey, ""),
		Secure: useSSL,
	})
	if err != nil {
		log.Fatalln(err)
		return "1", err
	}
	bucketName := utils.MinIoBucketname
	exists, errBucketExists := minioClient.BucketExists(ctx, bucketName)
	if errBucketExists != nil || !exists {
		err = fmt.Errorf("BucketExists: %v; err: %v", exists, errBucketExists)
		return "2", err
	}

	path := savePath
	if savePath == "" {
		path = utils.MinIoUploadDir + time.Now().Format("200601/20060102/") + fileName
	}
	_, err = minioClient.FPutObject(ctx, bucketName, path, filePath, minio.PutObjectOptions{})
	if err != nil {
		log.Fatalln(err)
		return "3", err
	}
	resourceUrl := utils.MinIoPdfhost + path
	return resourceUrl, err
}

func (m *MinioOss) GetUploadToken() (token OssToken, err error) {
	token.AccessKeyId = utils.MinIoAccessKeyId
	token.SecretKeyId = utils.MinIoAccessKeySecret
	token.Endpoint = utils.MinIoEndpoint
	token.ImgHost = utils.MinIoPdfhost
	token.Bucketname = utils.MinIoBucketname
	token.UseSSL = utils.MinIoUseSSL
	token.RegionId = utils.MinIoRegion
	token.Port = utils.MinIoPort
	return
}