Add resumable downloads, download paths, queue controls and history

internal/libraries/libraries.go

@@ -5,14 +5,17 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+
+	"ddc/internal/diskspace"
 )
 
 var ErrUnknownDestination = errors.New("destination is not a first level folder of a library root")
 
 type Destination struct {
-	Name string `json:"name"`
-	Root string `json:"root"`
-	Path string `json:"path"`
+	Name      string `json:"name"`
+	Root      string `json:"root"`
+	Path      string `json:"path"`
+	FreeBytes int64  `json:"freeBytes"`
 }
 
 func Discover(roots []string) []Destination {
@@ -26,10 +29,16 @@ func Discover(roots []string) []Destination {
 			if !entry.IsDir() || strings.HasPrefix(entry.Name(), ".") {
 				continue
 			}
+			path := filepath.Join(root, entry.Name())
+			freeBytes, err := diskspace.Available(path)
+			if err != nil {
+				freeBytes = -1
+			}
 			destinations = append(destinations, Destination{
-				Name: entry.Name(),
-				Root: root,
-				Path: filepath.Join(root, entry.Name()),
+				Name:      entry.Name(),
+				Root:      root,
+				Path:      path,
+				FreeBytes: freeBytes,
 			})
 		}
 	}