figured out image upload to matrix but now jpeg is hard coded

message/matrix.go

@@ -1,6 +1,7 @@
 package message
 
 import (
+	"bytes"
 	"fmt"
 	"io/ioutil"
 	"local/truckstop/config"
@@ -129,14 +130,15 @@ func (m Matrix) SendImage(uri string) error {
 	if err != nil {
 		return err
 	}
-	publicURI, err := UploadImage(b)
-	if err != nil {
-		return err
-	}
 	c, err := m.getclient()
 	if err != nil {
 		return err
 	}
+	mediaUpload, err := c.UploadToContentRepo(bytes.NewReader(b), "image/jpeg", int64(len(b)))
+	if err != nil {
+		return err
+	}
+	publicURI := mediaUpload.ContentURI
 	resp, err := c.SendImage(m.room, "img", publicURI)
 	log.Printf("sent image %s => %s: %+v", uri, publicURI, resp)
 	return err