download list

backend-golang/app.go

@@ -24,6 +24,8 @@ func NewApp() *App {
 // so we can call the runtime methods
 func (a *App) OnStartup(ctx context.Context) {
 	a.ctx = ctx
+
+	a.downloadLoop()
 }
 
 func (a *App) UpdateApp(url string) (broken bool, err error) {

backend-golang/download.go

@@ -0,0 +1,72 @@
+package backend_golang
+
+import (
+	"path/filepath"
+	"time"
+
+	"github.com/cavaliergopher/grab/v3"
+	"github.com/wailsapp/wails/v2/pkg/runtime"
+)
+
+func (a *App) DownloadFile(path string, url string) error {
+	_, err := grab.Get(path, url)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+type DownloadStatus struct {
+	resp        *grab.Response
+	Name        string  `json:"name"`
+	Path        string  `json:"path"`
+	Url         string  `json:"url"`
+	Transferred int64   `json:"transferred"`
+	Size        int64   `json:"size"`
+	Speed       float64 `json:"speed"`
+	Progress    float64 `json:"progress"`
+	Done        bool    `json:"done"`
+}
+
+var downloadList []DownloadStatus
+
+func (a *App) AddToDownloadList(path string, url string) {
+	client := grab.NewClient()
+	req, _ := grab.NewRequest(path, url)
+	resp := client.Do(req)
+
+	downloadList = append(downloadList, DownloadStatus{
+		resp:        resp,
+		Name:        filepath.Base(path),
+		Path:        path,
+		Url:         url,
+		Transferred: 0,
+		Size:        0,
+		Speed:       0,
+		Progress:    0,
+		Done:        false,
+	})
+}
+
+func (a *App) downloadLoop() {
+	ticker := time.NewTicker(500 * time.Millisecond)
+	go func() {
+		for {
+			<-ticker.C
+			for i, downloadStatus := range downloadList {
+				downloadList[i] = DownloadStatus{
+					resp:        downloadStatus.resp,
+					Name:        downloadStatus.Name,
+					Path:        downloadStatus.Path,
+					Url:         downloadStatus.Url,
+					Transferred: downloadStatus.resp.BytesComplete(),
+					Size:        downloadStatus.resp.Size(),
+					Speed:       downloadStatus.resp.BytesPerSecond(),
+					Progress:    100 * downloadStatus.resp.Progress(),
+					Done:        downloadStatus.resp.IsComplete(),
+				}
+			}
+			runtime.EventsEmit(a.ctx, "downloadList", downloadList)
+		}
+	}()
+}

backend-golang/file.go

@@ -8,8 +8,6 @@ import (
 	"path/filepath"
 	"runtime"
 	"time"
-
-	"github.com/cavaliergopher/grab/v3"
 )
 
 func (a *App) SaveJson(fileName string, jsonData any) error {
@@ -86,14 +84,6 @@ func (a *App) ListDirFiles(dirPath string) ([]FileInfo, error) {
 	return filesInfo, nil
 }
 
-func (a *App) DownloadFile(path string, url string) error {
-	_, err := grab.Get(path, url)
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
 func (a *App) DeleteFile(path string) error {
 	err := os.Remove(path)
 	if err != nil {