Removed image dependency

lib/img.go

@@ -2,38 +2,32 @@ package lib
 
 import (
 	"bytes"
-	"errors"
+	"fmt"
 	"image"
 	"image/png"
-	"io"
 	"mime/multipart"
 
-	"github.com/disintegration/imaging"
+	"golang.org/x/image/draw"
 )
 
 func ResizeImg(file multipart.File, width int, height int) ([]byte, error) {
-	// Read file content
-	fileContent, err := io.ReadAll(file)
-	if err != nil {
-		return nil, errors.New("error reading image file")
-	}
+    // Read and decode image
+    img, _, err := image.Decode(file)
+    if err != nil {
+        return nil, fmt.Errorf("decode error: %w", err)
+    }
 
-	// Decode image
-	img, _, err := image.Decode(bytes.NewReader(fileContent))
-	if err != nil {
-		println(err.Error())
-		return nil, errors.New("error decoding image")
-	}
+    // Create new RGBA image
+    dst := image.NewRGBA(image.Rect(0, 0, width, height))
 
-	// Resize the image
-	resizedImg := imaging.Resize(img, width, height, imaging.Lanczos)
+    // Resize using high-quality interpolation
+    draw.CatmullRom.Scale(dst, dst.Bounds(), img, img.Bounds(), draw.Over, nil)
 
-	// Encode the resized image as PNG
-	buf := new(bytes.Buffer)
-	if err := png.Encode(buf, resizedImg); err != nil {
-		return nil, errors.New("error encoding image to PNG")
-	}
+    // Encode to PNG
+    buf := new(bytes.Buffer)
+    if err := png.Encode(buf, dst); err != nil {
+        return nil, fmt.Errorf("encode error: %w", err)
+    }
 
-	// Return the resized image as response
-	return buf.Bytes(), nil
+    return buf.Bytes(), nil
 }