Split filesystem.go file

backend/internal/filesystem/files.go

@@ -0,0 +1,153 @@
+// Package filesystem provides functionalities to interact with the file system,
+// including listing files, finding files by name, getting file content, saving files, and deleting files.
+package filesystem
+
+import (
+	"errors"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+)
+
+// FileNode represents a file or directory in the file system.
+type FileNode struct {
+	ID       string     `json:"id"`
+	Name     string     `json:"name"`
+	Path     string     `json:"path"`
+	Children []FileNode `json:"children,omitempty"`
+}
+
+// ListFilesRecursively returns a list of all files in the workspace directory and its subdirectories.
+func (fs *FileSystem) ListFilesRecursively(userID, workspaceID int) ([]FileNode, error) {
+	workspacePath := fs.GetWorkspacePath(userID, workspaceID)
+	return fs.walkDirectory(workspacePath, "")
+}
+
+func (fs *FileSystem) walkDirectory(dir, prefix string) ([]FileNode, error) {
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		return nil, err
+	}
+
+	// Split entries into directories and files
+	var dirs, files []os.DirEntry
+	for _, entry := range entries {
+		if entry.IsDir() {
+			dirs = append(dirs, entry)
+		} else {
+			files = append(files, entry)
+		}
+	}
+
+	// Sort directories and files separately
+	sort.Slice(dirs, func(i, j int) bool {
+		return strings.ToLower(dirs[i].Name()) < strings.ToLower(dirs[j].Name())
+	})
+	sort.Slice(files, func(i, j int) bool {
+		return strings.ToLower(files[i].Name()) < strings.ToLower(files[j].Name())
+	})
+
+	// Create combined slice with directories first, then files
+	nodes := make([]FileNode, 0, len(entries))
+
+	// Add directories first
+	for _, entry := range dirs {
+		name := entry.Name()
+		path := filepath.Join(prefix, name)
+		fullPath := filepath.Join(dir, name)
+
+		children, err := fs.walkDirectory(fullPath, path)
+		if err != nil {
+			return nil, err
+		}
+
+		node := FileNode{
+			ID:       path,
+			Name:     name,
+			Path:     path,
+			Children: children,
+		}
+		nodes = append(nodes, node)
+	}
+
+	// Then add files
+	for _, entry := range files {
+		name := entry.Name()
+		path := filepath.Join(prefix, name)
+
+		node := FileNode{
+			ID:   path,
+			Name: name,
+			Path: path,
+		}
+		nodes = append(nodes, node)
+	}
+
+	return nodes, nil
+}
+
+// FindFileByName returns a list of file paths that match the given filename.
+func (fs *FileSystem) FindFileByName(userID, workspaceID int, filename string) ([]string, error) {
+	var foundPaths []string
+	workspacePath := fs.GetWorkspacePath(userID, workspaceID)
+
+	err := filepath.Walk(workspacePath, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if !info.IsDir() {
+			relPath, err := filepath.Rel(workspacePath, path)
+			if err != nil {
+				return err
+			}
+			if strings.EqualFold(info.Name(), filename) {
+				foundPaths = append(foundPaths, relPath)
+			}
+		}
+		return nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	if len(foundPaths) == 0 {
+		return nil, errors.New("file not found")
+	}
+
+	return foundPaths, nil
+}
+
+// GetFileContent returns the content of the file at the given path.
+func (fs *FileSystem) GetFileContent(userID, workspaceID int, filePath string) ([]byte, error) {
+	fullPath, err := fs.ValidatePath(userID, workspaceID, filePath)
+	if err != nil {
+		return nil, err
+	}
+	return os.ReadFile(fullPath)
+}
+
+// SaveFile writes the content to the file at the given path.
+func (fs *FileSystem) SaveFile(userID, workspaceID int, filePath string, content []byte) error {
+	fullPath, err := fs.ValidatePath(userID, workspaceID, filePath)
+	if err != nil {
+		return err
+	}
+
+	dir := filepath.Dir(fullPath)
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return err
+	}
+
+	return os.WriteFile(fullPath, content, 0644)
+}
+
+// DeleteFile deletes the file at the given path.
+func (fs *FileSystem) DeleteFile(userID, workspaceID int, filePath string) error {
+	fullPath, err := fs.ValidatePath(userID, workspaceID, filePath)
+	if err != nil {
+		return err
+	}
+	return os.Remove(fullPath)
+}