Refactor into client + server backends

filesystem/filesystem.go

@@ -0,0 +1,99 @@
+package filesystem
+
+import (
+	"fmt"
+	"io/fs"
+	"os"
+	"path/filepath"
+
+	"github.com/op/go-logging"
+)
+
+var log = logging.MustGetLogger("mediasrv-server")
+
+type File struct {
+	Path string `json:"path"`
+	Name string `json:"name"`
+}
+
+type Dir struct {
+	Path     string `json:"path"`
+	Name     string `json:"name"`
+	SubDirs  []Dir  `json:"subDirs,omitempty"`
+	SubFiles []File `json:"subFiles,omitempty"`
+}
+
+func printDir(d Dir, offset int) {
+	for i := 0; i < offset; i++ {
+		fmt.Print("    ")
+	}
+	fmt.Printf("%v\n", d.Name)
+	for _, subFile := range d.SubFiles {
+		for i := 0; i < offset+1; i++ {
+			fmt.Print("    ")
+		}
+		fmt.Printf("%v\n", subFile.Name)
+	}
+	for _, subDir := range d.SubDirs {
+		printDir(subDir, offset+1)
+	}
+}
+
+func GetFilesystem(dir string) (Dir, error) {
+
+	var err error
+
+	root := Dir{
+		Path: dir,
+		Name: filepath.Base(dir),
+	}
+
+	currentDir := &root
+	dirStack := make([]*Dir, 1000)
+	subStack := make([][]fs.DirEntry, 1000)
+	ind := 0
+
+outer:
+	for {
+		var subDirs []fs.DirEntry
+		if len(currentDir.SubDirs) > 0 {
+			subDirs = subStack[ind]
+		} else {
+			subDirs, err = os.ReadDir(currentDir.Path)
+			if err != nil {
+				return Dir{}, err
+			}
+		}
+
+		for i, subDir := range subDirs {
+			subPath := filepath.Join(currentDir.Path, subDir.Name())
+			if subDir.IsDir() {
+				dirStack[ind] = currentDir
+				subStack[ind] = subDirs[i+1:]
+				ind++
+				newDir := Dir{
+					Path: subPath,
+					Name: subDir.Name(),
+				}
+				currentDir.SubDirs = append(currentDir.SubDirs, newDir)
+				currentDir = &currentDir.SubDirs[len(currentDir.SubDirs)-1]
+
+				continue outer
+			} else {
+				currentDir.SubFiles = append(currentDir.SubFiles, File{
+					Path: subPath,
+					Name: subDir.Name(),
+				})
+			}
+		}
+		if ind == 0 {
+			break
+		}
+		ind--
+		currentDir = dirStack[ind]
+	}
+
+	//printDir(root, 0)
+
+	return root, nil
+}