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path: root/weed/admin/dash/file_browser_data.go
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package dash

import (
	"context"
	"path/filepath"
	"sort"
	"strings"
	"time"

	"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
)

// FileEntry represents a file or directory entry in the file browser
type FileEntry struct {
	Name        string    `json:"name"`
	FullPath    string    `json:"full_path"`
	IsDirectory bool      `json:"is_directory"`
	Size        int64     `json:"size"`
	ModTime     time.Time `json:"mod_time"`
	Mode        string    `json:"mode"`
	Uid         uint32    `json:"uid"`
	Gid         uint32    `json:"gid"`
	Mime        string    `json:"mime"`
	Replication string    `json:"replication"`
	Collection  string    `json:"collection"`
	TtlSec      int32     `json:"ttl_sec"`
}

// BreadcrumbItem represents a single breadcrumb in the navigation
type BreadcrumbItem struct {
	Name string `json:"name"`
	Path string `json:"path"`
}

// FileBrowserData contains all data needed for the file browser view
type FileBrowserData struct {
	Username     string           `json:"username"`
	CurrentPath  string           `json:"current_path"`
	ParentPath   string           `json:"parent_path"`
	Breadcrumbs  []BreadcrumbItem `json:"breadcrumbs"`
	Entries      []FileEntry      `json:"entries"`
	TotalEntries int              `json:"total_entries"`
	TotalSize    int64            `json:"total_size"`
	LastUpdated  time.Time        `json:"last_updated"`
	IsBucketPath bool             `json:"is_bucket_path"`
	BucketName   string           `json:"bucket_name"`
}

// GetFileBrowser retrieves file browser data for a given path
func (s *AdminServer) GetFileBrowser(path string) (*FileBrowserData, error) {
	if path == "" {
		path = "/"
	}

	var entries []FileEntry
	var totalSize int64

	// Get directory listing from filer
	err := s.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
		stream, err := client.ListEntries(context.Background(), &filer_pb.ListEntriesRequest{
			Directory:          path,
			Prefix:             "",
			Limit:              1000,
			InclusiveStartFrom: false,
		})
		if err != nil {
			return err
		}

		for {
			resp, err := stream.Recv()
			if err != nil {
				if err.Error() == "EOF" {
					break
				}
				return err
			}

			entry := resp.Entry
			if entry == nil {
				continue
			}

			fullPath := path
			if !strings.HasSuffix(fullPath, "/") {
				fullPath += "/"
			}
			fullPath += entry.Name

			var modTime time.Time
			if entry.Attributes != nil && entry.Attributes.Mtime > 0 {
				modTime = time.Unix(entry.Attributes.Mtime, 0)
			}

			var mode string
			var uid, gid uint32
			var size int64
			var replication, collection string
			var ttlSec int32

			if entry.Attributes != nil {
				mode = FormatFileMode(entry.Attributes.FileMode)
				uid = entry.Attributes.Uid
				gid = entry.Attributes.Gid
				size = int64(entry.Attributes.FileSize)
				ttlSec = entry.Attributes.TtlSec
			}

			// Get replication and collection from entry extended attributes or chunks
			if entry.Extended != nil {
				if repl, ok := entry.Extended["replication"]; ok {
					replication = string(repl)
				}
				if coll, ok := entry.Extended["collection"]; ok {
					collection = string(coll)
				}
			}

			// Determine MIME type based on file extension
			mime := "application/octet-stream"
			if entry.IsDirectory {
				mime = "inode/directory"
			} else {
				ext := strings.ToLower(filepath.Ext(entry.Name))
				switch ext {
				case ".txt", ".log":
					mime = "text/plain"
				case ".html", ".htm":
					mime = "text/html"
				case ".css":
					mime = "text/css"
				case ".js":
					mime = "application/javascript"
				case ".json":
					mime = "application/json"
				case ".xml":
					mime = "application/xml"
				case ".pdf":
					mime = "application/pdf"
				case ".jpg", ".jpeg":
					mime = "image/jpeg"
				case ".png":
					mime = "image/png"
				case ".gif":
					mime = "image/gif"
				case ".svg":
					mime = "image/svg+xml"
				case ".mp4":
					mime = "video/mp4"
				case ".mp3":
					mime = "audio/mpeg"
				case ".zip":
					mime = "application/zip"
				case ".tar":
					mime = "application/x-tar"
				case ".gz":
					mime = "application/gzip"
				}
			}

			fileEntry := FileEntry{
				Name:        entry.Name,
				FullPath:    fullPath,
				IsDirectory: entry.IsDirectory,
				Size:        size,
				ModTime:     modTime,
				Mode:        mode,
				Uid:         uid,
				Gid:         gid,
				Mime:        mime,
				Replication: replication,
				Collection:  collection,
				TtlSec:      ttlSec,
			}

			entries = append(entries, fileEntry)
			if !entry.IsDirectory {
				totalSize += size
			}
		}

		return nil
	})

	if err != nil {
		return nil, err
	}

	// Sort entries: directories first, then files, both alphabetically
	sort.Slice(entries, func(i, j int) bool {
		if entries[i].IsDirectory != entries[j].IsDirectory {
			return entries[i].IsDirectory
		}
		return strings.ToLower(entries[i].Name) < strings.ToLower(entries[j].Name)
	})

	// Generate breadcrumbs
	breadcrumbs := s.generateBreadcrumbs(path)

	// Calculate parent path
	parentPath := "/"
	if path != "/" {
		parentPath = filepath.Dir(path)
		if parentPath == "." {
			parentPath = "/"
		}
	}

	// Check if this is a bucket path
	isBucketPath := false
	bucketName := ""
	if strings.HasPrefix(path, "/buckets/") {
		isBucketPath = true
		pathParts := strings.Split(strings.Trim(path, "/"), "/")
		if len(pathParts) >= 2 {
			bucketName = pathParts[1]
		}
	}

	return &FileBrowserData{
		CurrentPath:  path,
		ParentPath:   parentPath,
		Breadcrumbs:  breadcrumbs,
		Entries:      entries,
		TotalEntries: len(entries),
		TotalSize:    totalSize,
		LastUpdated:  time.Now(),
		IsBucketPath: isBucketPath,
		BucketName:   bucketName,
	}, nil
}

// generateBreadcrumbs creates breadcrumb navigation for the current path
func (s *AdminServer) generateBreadcrumbs(path string) []BreadcrumbItem {
	var breadcrumbs []BreadcrumbItem

	// Always start with root
	breadcrumbs = append(breadcrumbs, BreadcrumbItem{
		Name: "Root",
		Path: "/",
	})

	if path == "/" {
		return breadcrumbs
	}

	// Split path and build breadcrumbs
	parts := strings.Split(strings.Trim(path, "/"), "/")
	currentPath := ""

	for _, part := range parts {
		if part == "" {
			continue
		}
		currentPath += "/" + part

		// Special handling for bucket paths
		displayName := part
		if len(breadcrumbs) == 1 && part == "buckets" {
			displayName = "Object Store Buckets"
		} else if len(breadcrumbs) == 2 && strings.HasPrefix(path, "/buckets/") {
			displayName = "📦 " + part // Add bucket icon to bucket name
		}

		breadcrumbs = append(breadcrumbs, BreadcrumbItem{
			Name: displayName,
			Path: currentPath,
		})
	}

	return breadcrumbs
}