WIP

server-new/internal/adapters/fs.go

@@ -0,0 +1,97 @@
+package adapters
+
+import (
+	"os"
+	"path/filepath"
+)
+
+type LocalFsAdapter struct {
+	root string
+}
+
+func (l LocalFsAdapter) readDir(path string) (FsResponse, error) {
+	dirInfo, _ := os.Stat(path)
+
+	entries, err := os.ReadDir(path)
+	if err != nil {
+		return FsResponse{}, err
+	}
+
+	out := make([]FsDirEntry, 0, len(entries))
+	for _, e := range entries {
+		info, _ := e.Info()
+
+		entryType := "dir"
+		if !e.IsDir() {
+			entryType = contentTypeFor(e.Name())
+		}
+
+		out = append(out, FsDirEntry{
+			Name:    e.Name(),
+			Type:    entryType,
+			ModTime: info.ModTime(),
+		})
+	}
+
+	return FsResponse{
+		Dir: &FsDir{
+			Files:   out,
+			Name:    ResponsePath(l.root, path),
+			ModTime: dirInfo.ModTime(),
+		},
+	}, nil
+}
+
+func (l LocalFsAdapter) readFile(path string) (FsResponse, error) {
+	fi, err := os.Stat(path)
+	if err != nil {
+		return FsResponse{}, err
+	}
+
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return FsResponse{}, err
+	}
+
+	return FsResponse{
+		File: &FsFile{
+			Name:    ResponsePath(l.root, path),
+			Type:    contentTypeFor(path),
+			ModTime: fi.ModTime(),
+			Content: data,
+		},
+	}, nil
+}
+
+func (l LocalFsAdapter) Read(path string) (FsResponse, error) {
+	cleanRel, err := SafeRel(l.root, path)
+	if err != nil {
+		return FsResponse{}, err
+	}
+	target := filepath.Join(l.root, filepath.FromSlash(cleanRel))
+
+	fi, err := os.Stat(target)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return FsResponse{}, ErrNotFound
+		}
+
+		return FsResponse{}, err
+	}
+
+	if fi.IsDir() {
+		return l.readDir(target)
+	}
+
+	return l.readFile(target)
+}
+
+func (LocalFsAdapter) Write(path string, content []byte) error {
+	return nil
+}
+
+func NewLocalFsAdapter(root string) (FileAdapter, error) {
+	return LocalFsAdapter{
+		root: root,
+	}, nil
+}