fix junie's bad idea

anthropic.go

@@ -1,20 +1,17 @@
 package go_llm
 
 import (
-	"bytes"
 	"context"
 	"encoding/base64"
 	"encoding/json"
 	"fmt"
-	"image"
-	"image/gif"
-	"image/jpeg"
-	"image/png"
 	"io"
 	"log"
 	"log/slog"
 	"net/http"
 
+	"gitea.stevedudenhoeffer.com/steve/go-llm/utils"
+
 	anth "github.com/liushuangls/go-anthropic/v2"
 )
 
@@ -83,7 +80,6 @@ func (a anthropic) requestToAnthropicRequest(req Request) anth.MessagesRequest {
 				}
 
 				if img.Base64 != "" {
-
 					// Anthropic models expect images to be < 5MiB in size
 					raw, err := base64.StdEncoding.DecodeString(img.Base64)
 
@@ -93,39 +89,15 @@ func (a anthropic) requestToAnthropicRequest(req Request) anth.MessagesRequest {
 
 					// Check if image size exceeds 5MiB (5242880 bytes)
 					if len(raw) >= 5242880 {
-						// Decode the image
-						imgData, format, err := image.Decode(bytes.NewReader(raw))
+
+						compressed, err := utils.CompressImage(img.Base64, 5*1024*1024)
+
+						// just replace the image with the compressed one
 						if err != nil {
-							log.Println("failed to decode image", err)
 							continue
 						}
 
-						var buf bytes.Buffer
-
-						switch format {
-						case "jpeg", "jpg":
-							err = jpeg.Encode(&buf, imgData, &jpeg.Options{Quality: 60})
-						case "png":
-							// For PNG, use a higher compression level
-							enc := &png.Encoder{
-								CompressionLevel: png.BestCompression,
-							}
-							err = enc.Encode(&buf, imgData)
-						case "gif":
-							err = gif.Encode(&buf, imgData, &gif.Options{
-								NumColors: 128,
-							})
-						default:
-							continue
-						}
-
-						if err != nil {
-							log.Println("failed to encode image", err)
-							continue
-						}
-
-						// Update the base64 string
-						img.Base64 = base64.StdEncoding.EncodeToString(buf.Bytes())
+						img.Base64 = compressed
 					}
 
 					m.Content = append(m.Content, anth.NewImageMessageContent(