/
imageWriter.go
53 lines (45 loc) · 1.13 KB
/
imageWriter.go
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package matryoshka
import (
"bytes"
"context"
"errors"
log "github.com/sirupsen/logrus"
)
var (
storageClient IStorage
)
func init() {
storageClient = &StorageClient{}
}
// WriteImage save images
func WriteImage(prefix, filePath, bucket string, buf *bytes.Buffer) (map[string]*BufMedia, error) {
if prefix == "" {
return nil, errors.New("empty prefix")
}
if bucket == "" {
return nil, errors.New("empty bucket")
}
if buf == nil || buf.Len() == 0 {
return nil, errors.New("empty buffer")
}
fileName, ext, mimeTyp, err := solveImgInfo(filePath)
if err != nil {
log.Warningf("{WriteImage}{error solving image attr: %v}", err)
return nil, err
}
imgMapBuf, err := generateImgsByScale(buf, prefix, fileName, ext, mimeTyp)
if err != nil {
log.Warningf("{WriteImage}{error generating imgs: %v}", err)
return imgMapBuf, err
}
ctx := context.Background()
for i, imgBuffer := range imgMapBuf {
err = storageClient.SaveImg(ctx, prefix, bucket, imgBuffer)
if err != nil {
log.Warningf("{WriteImage}{error saving image on storage: %v}", err)
return imgMapBuf, err
}
imgMapBuf[i].Buf = nil
}
return imgMapBuf, err
}