Files
seanime-docker/seanime-2.9.10/internal/debrid/client/utils.go
2025-09-20 14:08:38 +01:00

283 lines
6.6 KiB
Go

package debrid_client
import (
"archive/zip"
"fmt"
"io"
"os"
"path/filepath"
"github.com/nwaples/rardecode/v2"
)
// Unzips a file to the destination
//
// Example:
// If "file.zip" contains `folder>file.text`, the file will be extracted to "/path/to/dest/{TMP}/folder/file.txt"
// unzipFile("file.zip", "/path/to/dest")
func unzipFile(src, dest string) (string, error) {
r, err := zip.OpenReader(src)
if err != nil {
return "", fmt.Errorf("failed to open zip file: %w", err)
}
defer r.Close()
// Create a temporary folder to extract the files
extractedDir, err := os.MkdirTemp(dest, "extracted-")
if err != nil {
return "", fmt.Errorf("failed to create temp folder: %w", err)
}
// Iterate through the files in the archive
for _, f := range r.File {
// Get the full path of the file in the destination
fpath := filepath.Join(extractedDir, f.Name)
// If the file is a directory, create it in the destination
if f.FileInfo().IsDir() {
_ = os.MkdirAll(fpath, os.ModePerm)
continue
}
// Make sure the parent directory exists (will not return an error if it already exists)
if err := os.MkdirAll(filepath.Dir(fpath), os.ModePerm); err != nil {
return "", err
}
// Open the file in the destination
outFile, err := os.OpenFile(fpath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
if err != nil {
return "", err
}
// Open the file in the archive
rc, err := f.Open()
if err != nil {
_ = outFile.Close()
return "", err
}
// Copy the file from the archive to the destination
_, err = io.Copy(outFile, rc)
_ = outFile.Close()
_ = rc.Close()
if err != nil {
return "", err
}
}
return extractedDir, nil
}
// Unrars a file to the destination
//
// Example:
// If "file.rar" contains a folder "folder" with a file "file.txt", the file will be extracted to "/path/to/dest/{TM}/folder/file.txt"
// unrarFile("file.rar", "/path/to/dest")
func unrarFile(src, dest string) (string, error) {
r, err := rardecode.OpenReader(src)
if err != nil {
return "", fmt.Errorf("failed to open rar file: %w", err)
}
defer r.Close()
// Create a temporary folder to extract the files
extractedDir, err := os.MkdirTemp(dest, "extracted-")
if err != nil {
return "", fmt.Errorf("failed to create temp folder: %w", err)
}
// Iterate through the files in the archive
for {
header, err := r.Next()
if err == io.EOF {
break
}
if err != nil {
return "", err
}
// Get the full path of the file in the destination
fpath := filepath.Join(extractedDir, header.Name)
// If the file is a directory, create it in the destination
if header.IsDir {
_ = os.MkdirAll(fpath, os.ModePerm)
continue
}
// Make sure the parent directory exists (will not return an error if it already exists)
if err := os.MkdirAll(filepath.Dir(fpath), os.ModePerm); err != nil {
return "", err
}
// Open the file in the destination
outFile, err := os.Create(fpath)
if err != nil {
return "", err
}
// Copy the file from the archive to the destination
_, err = io.Copy(outFile, r)
outFile.Close()
if err != nil {
return "", err
}
}
return extractedDir, nil
}
// Moves a folder or file to the destination
//
// Example:
// moveFolderOrFileTo("/path/to/src/folder", "/path/to/dest") -> "/path/to/dest/folder"
func moveFolderOrFileTo(src, dest string) error {
// Ensure the destination folder exists
if _, err := os.Stat(dest); os.IsNotExist(err) {
err := os.MkdirAll(dest, os.ModePerm)
if err != nil {
return fmt.Errorf("failed to create destination folder: %v", err)
}
}
destFolder := filepath.Join(dest, filepath.Base(src))
// Move the folder by renaming it
err := os.Rename(src, destFolder)
if err != nil {
return fmt.Errorf("failed to move folder: %v", err)
}
return nil
}
// Moves the contents of a folder to the destination
// It will move ONLY the folder containing multiple files or folders OR a single deeply nested file
//
// Example:
//
// Case 1:
// src/
// - Anime/
// - Ep1.mkv
// - Ep2.mkv
// moveContentsTo("/path/to/src", "/path/to/dest") -> "/path/to/dest/Anime"
//
// Case 2:
// src/
// - {HASH}/
// - Anime/
// - Ep1.mkv
// - Ep2.mkv
// moveContentsTo("/path/to/src", "/path/to/dest") -> "/path/to/dest/Anime"
//
// Case 3:
// src/
// - {HASH}/
// - Anime/
// - Ep1.mkv
// moveContentsTo("/path/to/src", "/path/to/dest") -> "/path/to/dest/Ep1.mkv"
//
// Case 4:
// src/
// - {HASH}/
// - Anime/
// - Anime 1/
// - Ep1.mkv
// - Ep2.mkv
// - Anime 2/
// - Ep1.mkv
// - Ep2.mkv
// moveContentsTo("/path/to/src", "/path/to/dest") -> "/path/to/dest/Anime"
func moveContentsTo(src, dest string) error {
// Ensure the source and destination directories exist
if _, err := os.Stat(src); os.IsNotExist(err) {
return fmt.Errorf("source directory does not exist: %s", src)
}
_ = os.MkdirAll(dest, os.ModePerm)
srcEntries, err := os.ReadDir(src)
if err != nil {
return err
}
// If the source folder contains multiple files or folders, move its contents to the destination
if len(srcEntries) > 1 {
for _, srcEntry := range srcEntries {
err := moveFolderOrFileTo(filepath.Join(src, srcEntry.Name()), dest)
if err != nil {
return err
}
}
return nil
}
folderMap := make(map[string]int)
err = findFolderChildCount(src, folderMap)
if err != nil {
return err
}
var folderToMove string
for folder, count := range folderMap {
if count > 1 {
if folderToMove == "" || len(folder) < len(folderToMove) {
folderToMove = folder
}
continue
}
}
//util.Spew(folderToMove)
// It's a single file, move that file only
if folderToMove == "" {
fp := getDeeplyNestedFile(src)
if fp == "" {
return fmt.Errorf("no files found in the source directory")
}
return moveFolderOrFileTo(fp, dest)
}
// Move the folder containing multiple files or folders
err = moveFolderOrFileTo(folderToMove, dest)
if err != nil {
return err
}
return nil
}
// Finds the folder to move to the destination
func findFolderChildCount(src string, folderMap map[string]int) error {
srcEntries, err := os.ReadDir(src)
if err != nil {
return err
}
for _, srcEntry := range srcEntries {
folderMap[src]++
if srcEntry.IsDir() {
err = findFolderChildCount(filepath.Join(src, srcEntry.Name()), folderMap)
if err != nil {
return err
}
}
}
return nil
}
func getDeeplyNestedFile(src string) (fp string) {
srcEntries, err := os.ReadDir(src)
if err != nil {
return ""
}
for _, srcEntry := range srcEntries {
if srcEntry.IsDir() {
return getDeeplyNestedFile(filepath.Join(src, srcEntry.Name()))
}
return filepath.Join(src, srcEntry.Name())
}
return ""
}