package service

import (
	"codespace/internal/fs"
	"codespace/internal/workspace"
)

// FileService handles file operations within workspaces.
type FileService struct {
	workspaces workspace.Manager
}

// NewFileService creates a FileService.
func NewFileService(workspaces workspace.Manager) *FileService {
	return &FileService{workspaces: workspaces}
}

// List lists files at the given workspace-relative path.
func (s *FileService) List(workspaceID, path string) ([]fs.FileInfo, error) {
	ws, err := s.workspaces.Get(workspaceID)
	if err != nil {
		return nil, err
	}
	return fs.NewLocal(ws.Root).List(path)
}

// Read reads a file at the given workspace-relative path.
func (s *FileService) Read(workspaceID, path string) ([]byte, error) {
	ws, err := s.workspaces.Get(workspaceID)
	if err != nil {
		return nil, err
	}
	return fs.NewLocal(ws.Root).Read(path)
}

// Write writes data to a file at the given workspace-relative path.
func (s *FileService) Write(workspaceID, path string, data []byte) error {
	ws, err := s.workspaces.Get(workspaceID)
	if err != nil {
		return err
	}
	return fs.NewLocal(ws.Root).Write(path, data)
}

// Mkdir creates a directory at the given workspace-relative path.
func (s *FileService) Mkdir(workspaceID, path string) error {
	ws, err := s.workspaces.Get(workspaceID)
	if err != nil {
		return err
	}
	return fs.NewLocal(ws.Root).Mkdir(path)
}

// Remove removes a file or directory at the given workspace-relative path.
func (s *FileService) Remove(workspaceID, path string) error {
	ws, err := s.workspaces.Get(workspaceID)
	if err != nil {
		return err
	}
	return fs.NewLocal(ws.Root).Remove(path)
}

// Rename renames a file or directory from oldPath to newPath.
func (s *FileService) Rename(workspaceID, oldPath, newPath string) error {
	ws, err := s.workspaces.Get(workspaceID)
	if err != nil {
		return err
	}
	return fs.NewLocal(ws.Root).Rename(oldPath, newPath)
}

// Stat returns file info for the given workspace-relative path.
func (s *FileService) Stat(workspaceID, path string) (*fs.FileInfo, error) {
	ws, err := s.workspaces.Get(workspaceID)
	if err != nil {
		return nil, err
	}
	return fs.NewLocal(ws.Root).Stat(path)
}