Added framework for image decoding

images/consts.go

@@ -1,3 +1,4 @@
 package images
 
+// TODO find the best location to put the new files
 const ImageDir = "assets/"

images/files.go

@@ -3,6 +3,7 @@ package images
 import (
 	"image"
 	"image/jpeg"
+	"io"
 	"os"
 )
 
@@ -11,12 +12,24 @@ func Get(fileName string) (image.Image, error) {
 	if err != nil {
 		return nil, err
 	}
+	defer file.Close()
+
+	switch getFileType(file) {
+	case JPEG:
+		err = decodeJpeg(file)
+		break
+	case PNG:
+		err = decodePng(file)
+		break
+	case WEBP:
+		err = decodeWebp(file)
+		break
+	}
 
 	img, err := jpeg.Decode(file)
 	if err != nil {
 		return nil, err
 	}
-	file.Close()
 
 	return img, nil
 }
@@ -28,13 +41,40 @@ func Render(img image.Image, imgDetail *Details) error {
 	}
 	defer out.Close()
 
-	o := new(jpeg.Options)
-	o.Quality = imgDetail.Quality
-
-	jpeg.Encode(out, img, o)
+	err = renderJpeg(out, img, imgDetail)
+	if err != nil {
+		return err
+	}
 
 	fi, _ := out.Stat()
 	imgDetail.SizeFile = fi.Size()
 
 	return nil
 }
+
+func getFileType(file *os.File) FileType {
+	// TODO
+	return JPEG
+}
+
+func decodeJpeg(file *os.File) error {
+	// TODO
+	return nil
+}
+
+func decodePng(file *os.File) error {
+	// TODO
+	return nil
+}
+
+func decodeWebp(file *os.File) error {
+	// TODO
+	return nil
+}
+
+func renderJpeg(w io.Writer, m image.Image, imgDetail *Details) error {
+	o := new(jpeg.Options)
+	o.Quality = imgDetail.Quality
+
+	return jpeg.Encode(w, m, o)
+}

images/meta.go

@@ -22,7 +22,6 @@ type Details struct {
 	SizeFile   int64
 	Quality    int
 	FileName   string
-	FileType   FileType
 	Properties string
 }