4 files changed, 205 insertions, 4 deletions

diff --git a/storage/storage.go b/storage/storage.go
index b788efb..880396a 100644
--- a/storage/storage.go
+++ b/storage/storage.go
@@ -17,6 +17,12 @@ const (
 type Storage interface {
 	Walk(path string, walkMode WalkMode) <-chan string
 	Get(path string) (io.Reader, error)
+	Put(path string, f io.Reader) error
+	List(path string) ([]string, error)
+	Move(src string, dest string) error
+	Copy(src string, dest string) error
+	Mkdir(path string) error
+	Exists(path string) (bool, error)
 }
 
 func CalculateSHA256(r io.Reader) (string, error) {
diff --git a/storage/storage_fs.go b/storage/storage_fs.go
index 35ce58b..16bf8e8 100644
--- a/storage/storage_fs.go
+++ b/storage/storage_fs.go
@@ -1,22 +1,38 @@
 package storage
 
 import (
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
 	"os"
 	"path/filepath"
+	"porg/pipe"
 )
 
 type FileSystem struct {
-	root string
 }
 
-func WalkFolder(folder string, walkMode WalkMode) <-chan string {
+func NewFileSystem() *FileSystem {
+	return &FileSystem{}
+}
+
+func (fs *FileSystem) Get(path string) (io.Reader, error) {
+	return os.Open(path)
+}
+
+func (fs *FileSystem) Walk(folder string, walkMode WalkMode) <-chan string {
 	c := make(chan string)
 
 	go func(folder string, c chan string) {
 		filepath.Walk(folder, func(path string, info os.FileInfo, err error) error {
 			file, _ := os.Open(path)
 			defer file.Close()
-			fileInfo, _ := file.Stat()
+			fileInfo, err := file.Stat()
+			if err != nil {
+				fmt.Println("@@@@ ", err.Error())
+				return nil
+			}
 
 			switch walkMode {
 			case Folder:
@@ -38,3 +54,67 @@ func WalkFolder(folder string, walkMode WalkMode) <-chan string {
 
 	return c
 }
+
+func (fs *FileSystem) Put(path string, f io.Reader) error {
+	fo, err := os.Create(path)
+	if err != nil {
+		return err
+	}
+
+	if _, err := io.Copy(fo, f); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (fs *FileSystem) List(path string) ([]string, error) {
+	files, err := ioutil.ReadDir(path)
+	if err != err {
+		return nil, err
+	}
+
+	findPath := func(f os.FileInfo) string {
+		return path + "/" + f.Name()
+	}
+	return pipe.Map(findPath, files), nil
+}
+
+func (fs *FileSystem) Move(src string, dst string) error {
+	return os.Rename(src, dst)
+}
+
+func (fs *FileSystem) Copy(src string, dst string) error {
+	in, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer in.Close()
+
+	out, err := os.Create(dst)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+
+	_, err = io.Copy(out, in)
+	if err != nil {
+		return err
+	}
+	return out.Close()
+}
+
+func (fs *FileSystem) Exists(path string) (bool, error) {
+	_, err := os.Stat(path)
+	if err == nil {
+		return true, nil
+	}
+	if errors.Is(err, os.ErrNotExist) {
+		return false, nil
+	}
+	return false, err
+}
+
+func (fs *FileSystem) Mkdir(path string) error {
+	return os.MkdirAll(path, 0777)
+}
diff --git a/storage/storage_fs_test.go b/storage/storage_fs_test.go
index b746c7e..429de58 100644
--- a/storage/storage_fs_test.go
+++ b/storage/storage_fs_test.go
@@ -10,12 +10,13 @@ func TestWalk(t *testing.T) {
 	folder := testutil.CreateFolder()
 	files := map[string]struct{}{}
 	walkedFiles := map[string]struct{}{}
+	fs := NewFileSystem()
 
 	for i := 0; i < fileCount; i++ {
 		files[testutil.AppendEmptyFile(folder)] = struct{}{}
 	}
 
-	c := WalkFolder(folder, File)
+	c := fs.Walk(folder, File)
 	for file := range c {
 		walkedFiles[file] = struct{}{}
 	}
diff --git a/storage/storage_wd.go b/storage/storage_wd.go
new file mode 100644
index 0000000..b166992
--- /dev/null
+++ b/storage/storage_wd.go
@@ -0,0 +1,114 @@
+package storage
+
+import (
+	"errors"
+	"io"
+	"os"
+
+	"github.com/studio-b12/gowebdav"
+)
+
+type WebDav struct {
+	client *gowebdav.Client
+}
+
+func NewWebDavStorage(root string, username string, password string) *WebDav {
+	c := gowebdav.NewClient(root, username, password)
+	return &WebDav{client: c}
+}
+
+func (wd *WebDav) Mkdir(path string) error {
+	if err := wd.client.MkdirAll(path, 0644); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (wd *WebDav) Put(path string, f io.Reader) error {
+	return wd.client.WriteStream(path, f, 0644)
+}
+
+func (wd *WebDav) Move(src string, dest string) error {
+	if src != dest {
+		if err := wd.client.Rename(src, dest, true); err != nil {
+			return nil
+		}
+	}
+	return nil
+}
+
+func (wd *WebDav) Exists(path string) (bool, error) {
+	_, err := wd.client.Stat(path)
+	if err == nil {
+		return true, nil
+	}
+	if errors.Is(err, os.ErrNotExist) {
+		return false, nil
+	}
+	return false, err
+}
+
+func (wd *WebDav) Copy(src string, dest string) error {
+	if src != dest {
+		if err := wd.client.Copy(src, dest, true); err != nil {
+			return nil
+		}
+	}
+	return nil
+}
+
+func (wd *WebDav) Get(path string) (io.Reader, error) {
+	return wd.client.ReadStream(path)
+}
+
+func (wd *WebDav) List(path string) ([]string, error) {
+	files, err := wd.client.ReadDir(path)
+	if err != nil {
+		return nil, err
+	}
+
+	r := make([]string, len(files))
+
+	for i, v := range files {
+		r[i] = v.Name()
+	}
+
+	return r, nil
+}
+
+func (wd *WebDav) Walk(folder string, walkMode WalkMode) <-chan string {
+	c := make(chan string)
+
+	go func(string, chan string) {
+		var queue []string
+		queue = append(queue, folder)
+
+		for len(queue) > 0 {
+			f := queue[0]
+			queue = queue[1:]
+
+			files, _ := wd.client.ReadDir(f)
+			for _, fileInfo := range files {
+				if fileInfo.IsDir() {
+					queue = append(queue, f+"/"+fileInfo.Name())
+				}
+
+				switch walkMode {
+				case Folder:
+					if fileInfo.IsDir() {
+						c <- f + "/" + fileInfo.Name()
+					}
+				case File:
+					if !fileInfo.IsDir() {
+						c <- f + "/" + fileInfo.Name()
+					}
+				case FileFolder:
+					c <- f + "/" + fileInfo.Name()
+				}
+			}
+		}
+		close(c)
+	}(folder, c)
+
+	return c
+}