Files tab: multi-selection, drag-and-drop, keyboard shortcuts, custom confirm modal, SVG icons

internal/core/files/file.go

@@ -3,6 +3,7 @@ package files
 import (
 	"crypto/sha256"
 	"database/sql"
+	"encoding/base64"
 	"fmt"
 	"io"
 	"os"
@@ -12,6 +13,7 @@ import (
 	"strings"
 	"time"
 
+	"verstak/internal/core/nodes"
 	"verstak/internal/core/storage"
 	"verstak/internal/core/util"
 )
@@ -32,15 +34,25 @@ type Record struct {
 	Missing     bool       `json:"missing"`
 }
 
+// ImportSummary describes a scanned directory before import.
+type ImportSummary struct {
+	Files        int    `json:"files"`
+	Folders      int    `json:"folders"`
+	TotalBytes   int64  `json:"totalBytes"`
+	IsDangerous  bool   `json:"isDangerous"`
+	DangerReason string `json:"dangerReason,omitempty"`
+}
+
 // Service provides file operations inside a vault.
 type Service struct {
 	db        *storage.DB
 	vaultRoot string
+	nodes     *nodes.Repository
 }
 
 // NewService creates a file service bound to a vault.
-func NewService(db *storage.DB, vaultRoot string) *Service {
-	return &Service{db: db, vaultRoot: vaultRoot}
+func NewService(db *storage.DB, vaultRoot string, nodeRepo *nodes.Repository) *Service {
+	return &Service{db: db, vaultRoot: vaultRoot, nodes: nodeRepo}
 }
 
 // DB returns the underlying storage.
@@ -166,6 +178,280 @@ func (s *Service) Open(id string) error {
 	return openWithSystem(abs)
 }
 
+// maxPreviewSize is the maximum file size (5 MB) for inline preview.
+const maxPreviewSize = 5 * 1024 * 1024
+
+// ReadText reads a file's content as text, up to maxPreviewSize.
+func (s *Service) ReadText(id string) (string, error) {
+	rec, err := s.Get(id)
+	if err != nil {
+		return "", err
+	}
+	if rec.Size > maxPreviewSize {
+		return "", fmt.Errorf("file too large for preview (%d bytes)", rec.Size)
+	}
+	var abs string
+	if rec.StorageMode == "vault" {
+		abs = filepath.Join(s.vaultRoot, rec.Path)
+	} else {
+		abs = rec.Path
+	}
+	b, err := os.ReadFile(abs)
+	if err != nil {
+		return "", fmt.Errorf("read: %w", err)
+	}
+	return string(b), nil
+}
+
+// ReadBase64 reads a file and returns a data URI (base64-encoded).
+func (s *Service) ReadBase64(id string) (string, error) {
+	rec, err := s.Get(id)
+	if err != nil {
+		return "", err
+	}
+	if rec.Size > maxPreviewSize {
+		return "", fmt.Errorf("file too large for preview (%d bytes)", rec.Size)
+	}
+	var abs string
+	if rec.StorageMode == "vault" {
+		abs = filepath.Join(s.vaultRoot, rec.Path)
+	} else {
+		abs = rec.Path
+	}
+	b, err := os.ReadFile(abs)
+	if err != nil {
+		return "", fmt.Errorf("read: %w", err)
+	}
+	mime := rec.MIME
+	if mime == "" {
+		mime = "application/octet-stream"
+	}
+	return fmt.Sprintf("data:%s;base64,%s", mime, base64.StdEncoding.EncodeToString(b)), nil
+}
+
+// CreateEmptyFile creates a file node and an empty vault file.
+func (s *Service) CreateEmptyFile(parentID, filename string) (*nodes.Node, error) {
+	filename = s.uniqueTitle(parentID, filename)
+	node, err := s.nodes.Create(parentID, nodes.TypeFile, filename, "")
+	if err != nil {
+		return nil, err
+	}
+	dir := filepath.Join(s.vaultRoot, "spaces", node.Slug)
+	if err := os.MkdirAll(dir, 0o750); err != nil {
+		return nil, fmt.Errorf("mkdir: %w", err)
+	}
+	dest := filepath.Join(dir, filename)
+	f, err := os.Create(dest)
+	if err != nil {
+		return nil, fmt.Errorf("create file: %w", err)
+	}
+	f.Close()
+	relPath, _ := filepath.Rel(s.vaultRoot, dest)
+	_, err = s.insertRecord(node.ID, filename, relPath, "vault", 0, "")
+	return node, err
+}
+
+// Duplicate creates a copy of a node and its file record under the same parent.
+func (s *Service) Duplicate(nodeID string) (*nodes.Node, error) {
+	original, err := s.nodes.GetActive(nodeID)
+	if err != nil {
+		return nil, err
+	}
+	parentID := ""
+	if original.ParentID != nil {
+		parentID = *original.ParentID
+	}
+	newName := s.uniqueTitle(parentID, original.Title)
+	node, err := s.nodes.Create(parentID, original.Type, newName, original.Section)
+	if err != nil {
+		return nil, err
+	}
+	if original.Type == nodes.TypeFile {
+		records, _ := s.ListByNode(original.ID)
+		if len(records) > 0 {
+			src := &records[0]
+			if src.StorageMode == "vault" {
+				srcPath := filepath.Join(s.vaultRoot, src.Path)
+				dir := filepath.Join(s.vaultRoot, "spaces", node.Slug)
+				os.MkdirAll(dir, 0o750)
+				dst := filepath.Join(dir, newName)
+				hash, err := copyAndHash(srcPath, dst)
+				if err != nil {
+					return nil, fmt.Errorf("copy file: %w", err)
+				}
+				relPath, _ := filepath.Rel(s.vaultRoot, dst)
+				_, err = s.insertRecord(node.ID, newName, relPath, "vault", src.Size, hash)
+				if err != nil {
+					return nil, err
+				}
+			} else {
+				// External file: create a new record pointing to the same absolute path.
+				_, err = s.insertRecord(node.ID, newName, src.Path, "external", src.Size, src.SHA256)
+				if err != nil {
+					return nil, err
+				}
+			}
+		}
+	}
+	return node, nil
+}
+
+// AddPathCopy copies sourcePath (file or directory) into the vault under nodeID.
+func (s *Service) AddPathCopy(nodeID, sourcePath string) ([]nodes.Node, error) {
+	return s.importPath(nodeID, sourcePath, true)
+}
+
+// AddPathLink links sourcePath (file or directory) without copying into vault.
+func (s *Service) AddPathLink(nodeID, sourcePath string) ([]nodes.Node, error) {
+	return s.importPath(nodeID, sourcePath, false)
+}
+
+// PreviewImport scans sourcePath and returns a summary without importing.
+func (s *Service) PreviewImport(sourcePath string) (*ImportSummary, error) {
+	info, err := os.Stat(sourcePath)
+	if err != nil {
+		return nil, fmt.Errorf("stat: %w", err)
+	}
+	if !info.IsDir() {
+		return &ImportSummary{Files: 1, TotalBytes: info.Size()}, nil
+	}
+
+	var sum ImportSummary
+	err = filepath.Walk(sourcePath, func(path string, fi os.FileInfo, err error) error {
+		if err != nil {
+			return filepath.SkipDir
+		}
+		if fi.IsDir() {
+			sum.Folders++
+			name := strings.ToLower(fi.Name())
+			if name == ".git" || name == "node_modules" || name == ".cache" {
+				sum.IsDangerous = true
+				sum.DangerReason = fmt.Sprintf("содержит %s", fi.Name())
+			}
+			return nil
+		}
+		sum.Files++
+		sum.TotalBytes += fi.Size()
+		return nil
+	})
+	if sum.Files > 1000 && !sum.IsDangerous {
+		sum.IsDangerous = true
+		sum.DangerReason = "более 1000 файлов"
+	}
+	if sum.TotalBytes > 1<<30 && !sum.IsDangerous {
+		sum.IsDangerous = true
+		sum.DangerReason = "более 1 GB"
+	}
+	return &sum, err
+}
+
+// DeleteNodeAndChildren soft-deletes a node and all descendants,
+// moving vault files to trash.
+func (s *Service) DeleteNodeAndChildren(nodeID string) error {
+	children, _ := s.nodes.ListChildren(nodeID, false)
+	for i := range children {
+		if err := s.DeleteNodeAndChildren(children[i].ID); err != nil {
+			return err
+		}
+	}
+	_ = s.deleteFileRecords(nodeID)
+	return s.nodes.SoftDelete(nodeID)
+}
+
+func (s *Service) deleteFileRecords(nodeID string) error {
+	records, err := s.ListByNode(nodeID)
+	if err != nil {
+		return err
+	}
+	for _, r := range records {
+		_ = s.DeleteToTrash(r.ID)
+	}
+	return nil
+}
+
+func (s *Service) importPath(parentID, sourcePath string, copyMode bool) ([]nodes.Node, error) {
+	info, err := os.Stat(sourcePath)
+	if err != nil {
+		return nil, fmt.Errorf("stat: %w", err)
+	}
+	if !info.IsDir() {
+		title := s.uniqueTitle(parentID, filepath.Base(sourcePath))
+		node, err := s.nodes.Create(parentID, nodes.TypeFile, title, "")
+		if err != nil {
+			return nil, err
+		}
+		if copyMode {
+			_, err = s.CopyIntoVault(node.ID, sourcePath, node.Slug)
+		} else {
+			_, err = s.AddExternal(node.ID, sourcePath)
+		}
+		if err != nil {
+			return nil, err
+		}
+		return []nodes.Node{*node}, nil
+	}
+	return s.importDir(parentID, sourcePath, info.Name(), copyMode)
+}
+
+func (s *Service) importDir(parentID, sourcePath, dirName string, copyMode bool) ([]nodes.Node, error) {
+	dirName = s.uniqueTitle(parentID, dirName)
+	folderNode, err := s.nodes.Create(parentID, nodes.TypeFolder, dirName, "")
+	if err != nil {
+		return nil, err
+	}
+
+	entries, err := os.ReadDir(sourcePath)
+	if err != nil {
+		return nil, err
+	}
+
+	var all []nodes.Node
+	all = append(all, *folderNode)
+
+	for _, entry := range entries {
+		childPath := filepath.Join(sourcePath, entry.Name())
+		if entry.IsDir() {
+			children, err := s.importDir(folderNode.ID, childPath, entry.Name(), copyMode)
+			if err != nil {
+				return nil, err
+			}
+			all = append(all, children...)
+		} else {
+			childNode, err := s.nodes.Create(folderNode.ID, nodes.TypeFile, entry.Name(), "")
+			if err != nil {
+				return nil, err
+			}
+			if copyMode {
+				_, err = s.CopyIntoVault(childNode.ID, childPath, childNode.Slug)
+			} else {
+				_, err = s.AddExternal(childNode.ID, childPath)
+			}
+			if err != nil {
+				return nil, err
+			}
+			all = append(all, *childNode)
+		}
+	}
+	return all, nil
+}
+
+func (s *Service) uniqueTitle(parentID, desired string) string {
+	children, _ := s.nodes.ListChildren(parentID, false)
+	used := make(map[string]bool, len(children))
+	for i := range children {
+		used[children[i].Title] = true
+	}
+	if !used[desired] {
+		return desired
+	}
+	for n := 2; ; n++ {
+		c := fmt.Sprintf("%s (%d)", desired, n)
+		if !used[c] {
+			return c
+		}
+	}
+}
+
 // --- implementation details ---
 
 func (s *Service) insertRecord(nodeID, filename, path, mode string, size int64, sha string) (*Record, error) {

internal/core/files/file_test.go

@@ -5,6 +5,7 @@ import (
 	"path/filepath"
 	"testing"
 
+	"verstak/internal/core/nodes"
 	"verstak/internal/core/storage"
 )
 
@@ -23,7 +24,7 @@ func TestAddExternal(t *testing.T) {
 	db := openTestDB(t)
 	// Run migration 002 manually since storage.Open already applied it.
 	// We can verify the table exists by inserting.
-	filesSvc := NewService(db, t.TempDir())
+	filesSvc := NewService(db, t.TempDir(), nodes.NewRepository(db))
 
 	// Create a real temp file to register.
 	tmpDir := t.TempDir()
@@ -62,7 +63,7 @@ func TestAddExternal(t *testing.T) {
 func TestCopyIntoVault(t *testing.T) {
 	db := openTestDB(t)
 	vaultRoot := t.TempDir()
-	svc := NewService(db, vaultRoot)
+	svc := NewService(db, vaultRoot, nodes.NewRepository(db))
 
 	// Source file.
 	srcDir := t.TempDir()
@@ -88,7 +89,7 @@ func TestCopyIntoVault(t *testing.T) {
 
 func TestListByNode(t *testing.T) {
 	db := openTestDB(t)
-	svc := NewService(db, t.TempDir())
+	svc := NewService(db, t.TempDir(), nodes.NewRepository(db))
 
 	os.WriteFile(filepath.Join(t.TempDir(), "a.txt"), []byte("a"), 0o640)
 	f1 := filepath.Join(t.TempDir(), "a1.txt")
@@ -111,7 +112,7 @@ func TestListByNode(t *testing.T) {
 func TestDeleteToTrash(t *testing.T) {
 	db := openTestDB(t)
 	vaultRoot := t.TempDir()
-	svc := NewService(db, vaultRoot)
+	svc := NewService(db, vaultRoot, nodes.NewRepository(db))
 
 	src := filepath.Join(t.TempDir(), "important.pdf")
 	os.WriteFile(src, []byte("important data"), 0o640)
@@ -140,6 +141,170 @@ func TestDeleteToTrash(t *testing.T) {
 	}
 }
 
+func TestAddPathCopySingleFile(t *testing.T) {
+	db := openTestDB(t)
+	vaultRoot := t.TempDir()
+	nodeRepo := nodes.NewRepository(db)
+	svc := NewService(db, vaultRoot, nodeRepo)
+
+	parent, _ := nodeRepo.Create("", "case", "Test Case", "")
+	src := filepath.Join(t.TempDir(), "doc.pdf")
+	os.WriteFile(src, []byte("file content"), 0o640)
+
+	nodes, err := svc.AddPathCopy(parent.ID, src)
+	if err != nil {
+		t.Fatalf("AddPathCopy: %v", err)
+	}
+	if len(nodes) != 1 {
+		t.Fatalf("got %d nodes, want 1", len(nodes))
+	}
+	if nodes[0].Type != "file" {
+		t.Errorf("type = %q", nodes[0].Type)
+	}
+	// Source intact.
+	if _, err := os.Stat(src); err != nil {
+		t.Error("source should remain intact")
+	}
+	// File record created.
+	records, _ := svc.ListByNode(nodes[0].ID)
+	if len(records) != 1 {
+		t.Errorf("file records = %d", len(records))
+	}
+}
+
+func TestAddPathLinkSingleFile(t *testing.T) {
+	db := openTestDB(t)
+	vaultRoot := t.TempDir()
+	nodeRepo := nodes.NewRepository(db)
+	svc := NewService(db, vaultRoot, nodeRepo)
+
+	parent, _ := nodeRepo.Create("", "case", "Test Case", "")
+	src := filepath.Join(t.TempDir(), "linked.pdf")
+	os.WriteFile(src, []byte("linked"), 0o640)
+
+	nodes, err := svc.AddPathLink(parent.ID, src)
+	if err != nil {
+		t.Fatalf("AddPathLink: %v", err)
+	}
+	if len(nodes) != 1 {
+		t.Fatalf("got %d nodes, want 1", len(nodes))
+	}
+	// File record should have external storage mode.
+	records, _ := svc.ListByNode(nodes[0].ID)
+	if len(records) != 1 {
+		t.Fatalf("file records = %d", len(records))
+	}
+	if records[0].StorageMode != "external" {
+		t.Errorf("storage mode = %q, want external", records[0].StorageMode)
+	}
+}
+
+func TestAddPathCopyDirectory(t *testing.T) {
+	db := openTestDB(t)
+	vaultRoot := t.TempDir()
+	nodeRepo := nodes.NewRepository(db)
+	svc := NewService(db, vaultRoot, nodeRepo)
+
+	parent, _ := nodeRepo.Create("", "case", "Test Case", "")
+	srcDir := t.TempDir()
+	os.MkdirAll(filepath.Join(srcDir, "sub"), 0o750)
+	os.WriteFile(filepath.Join(srcDir, "a.txt"), []byte("a"), 0o640)
+	os.WriteFile(filepath.Join(srcDir, "sub", "b.txt"), []byte("bb"), 0o640)
+
+	nodes, err := svc.AddPathCopy(parent.ID, srcDir)
+	if err != nil {
+		t.Fatalf("AddPathCopy dir: %v", err)
+	}
+	// Should create: folder node + file node + sub folder node + file node in sub.
+	if len(nodes) < 3 {
+		t.Errorf("expected 3+ nodes, got %d", len(nodes))
+	}
+	// Verify structure: root folder + children.
+	var folders, files int
+	for i := range nodes {
+		if nodes[i].Type == "folder" {
+			folders++
+		} else {
+			files++
+		}
+	}
+	if folders < 1 {
+		t.Error("expected at least 1 folder")
+	}
+	if files < 1 {
+		t.Error("expected at least 1 file")
+	}
+}
+
+func TestDeleteNodeAndChildren(t *testing.T) {
+	db := openTestDB(t)
+	vaultRoot := t.TempDir()
+	nodeRepo := nodes.NewRepository(db)
+	svc := NewService(db, vaultRoot, nodeRepo)
+
+	parent, _ := nodeRepo.Create("", "case", "To Delete", "")
+	child, _ := nodeRepo.Create(parent.ID, "file", "child.txt", "")
+	// Add file record to child.
+	src := filepath.Join(t.TempDir(), "child.txt")
+	os.WriteFile(src, []byte("data"), 0o640)
+	svc.CopyIntoVault(child.ID, src, child.Slug)
+
+	if err := svc.DeleteNodeAndChildren(parent.ID); err != nil {
+		t.Fatalf("DeleteNodeAndChildren: %v", err)
+	}
+	// Parent should be soft-deleted.
+	if _, err := nodeRepo.GetActive(parent.ID); err == nil {
+		t.Error("parent should be deleted")
+	}
+	// Child should be soft-deleted.
+	if _, err := nodeRepo.GetActive(child.ID); err == nil {
+		t.Error("child should be deleted")
+	}
+}
+
+func TestNameConflict(t *testing.T) {
+	db := openTestDB(t)
+	vaultRoot := t.TempDir()
+	nodeRepo := nodes.NewRepository(db)
+	svc := NewService(db, vaultRoot, nodeRepo)
+
+	parent, _ := nodeRepo.Create("", "case", "Test", "")
+	src := filepath.Join(t.TempDir(), "conflict.pdf")
+	os.WriteFile(src, []byte("data"), 0o640)
+
+	// Import twice with same filename.
+	n1, _ := svc.AddPathCopy(parent.ID, src)
+	n2, _ := svc.AddPathCopy(parent.ID, src)
+	if n1[0].Title == n2[0].Title {
+		t.Error("expected unique name on conflict")
+	}
+	if n2[0].Title == "conflict.pdf" {
+		t.Errorf("title unchanged = %q", n2[0].Title)
+	}
+}
+
+func TestPreviewImportDir(t *testing.T) {
+	db := openTestDB(t)
+	vaultRoot := t.TempDir()
+	svc := NewService(db, vaultRoot, nodes.NewRepository(db))
+
+	srcDir := t.TempDir()
+	os.MkdirAll(filepath.Join(srcDir, "sub"), 0o750)
+	os.WriteFile(filepath.Join(srcDir, "f1.txt"), []byte("hello"), 0o640)
+	os.WriteFile(filepath.Join(srcDir, "f2.txt"), []byte("world"), 0o640)
+
+	sum, err := svc.PreviewImport(srcDir)
+	if err != nil {
+		t.Fatalf("PreviewImport: %v", err)
+	}
+	if sum.Files != 2 {
+		t.Errorf("files = %d, want 2", sum.Files)
+	}
+	if sum.Folders != 2 { // root + sub
+		t.Errorf("folders = %d, want 2", sum.Folders)
+	}
+}
+
 func TestGuessMIME(t *testing.T) {
 	cases := map[string]string{
 		"a.md":    "text/plain",

internal/core/notes/note_test.go

@@ -21,7 +21,7 @@ func setupService(t *testing.T) (*Service, *nodes.Repository, string) {
 	t.Cleanup(func() { db.Close() })
 
 	nodeRepo := nodes.NewRepository(db)
-	fileSvc := files.NewService(db, dir)
+	fileSvc := files.NewService(db, dir, nodeRepo)
 	svc := NewService(db, dir, nodeRepo, fileSvc)
 	return svc, nodeRepo, dir
 }

internal/gui/server.go

@@ -38,7 +38,7 @@ type Server struct {
 // NewServer creates a GUI server for the given vault.
 func NewServer(db *storage.DB, vaultRoot string) *Server {
 	nodeRepo := nodes.NewRepository(db)
-	fileSvc := files.NewService(db, vaultRoot)
+	fileSvc := files.NewService(db, vaultRoot, nodeRepo)
 	noteSvc := notes.NewService(db, vaultRoot, nodeRepo, fileSvc)
 	actionSvc := actions.NewService(db)
 	workSvc := worklog.NewService(db)