Detect arithmetic progression

internal/torrent/manager.go

@@ -15,6 +15,7 @@ import (
 	"github.com/debridmediamanager.com/zurg/internal/config"
 	"github.com/debridmediamanager.com/zurg/pkg/logutil"
 	"github.com/debridmediamanager.com/zurg/pkg/realdebrid"
+	"github.com/debridmediamanager.com/zurg/pkg/utils"
 	cmap "github.com/orcaman/concurrent-map/v2"
 	"github.com/panjf2000/ants/v2"
 	"go.uber.org/zap"
@@ -96,9 +97,7 @@ func NewTorrentManager(cfg config.ConfigInterface, api *realdebrid.RealDebrid, p
 		}
 	}
 
-	anotherCt := 0
 	allTorrents.IterCb(func(accessKey string, torrent *Torrent) {
-		anotherCt++
 		// get IDs
 		var torrentIDs []string
 		for _, instance := range torrent.Instances {
@@ -293,11 +292,7 @@ func (t *TorrentManager) startRefreshJob() {
 			}
 
 			// get filenames
-			var filenames []string
-			torrent.SelectedFiles.IterCb(func(_ string, file *File) {
-				filenames = append(filenames, file.Path)
-			})
-
+			filenames := torrent.SelectedFiles.Keys()
 			// Map torrents to directories
 			switch t.cfg.GetVersion() {
 			case "v1":
@@ -593,7 +588,7 @@ func (t *TorrentManager) Repair(accessKey string) {
 	var links []string
 	streamableCount := 0
 	torrent.SelectedFiles.IterCb(func(_ string, file *File) {
-		if isStreamable(file.Path) {
+		if utils.IsStreamable(file.Path) {
 			streamableCount++
 		}
 		fileCopy := &File{

internal/torrent/util.go

@@ -3,7 +3,6 @@ package torrent
 import (
 	"fmt"
 	"os"
-	"strings"
 )
 
 func getFileIDs(files []File) []string {
@@ -16,14 +15,6 @@ func getFileIDs(files []File) []string {
 	return fileIDs
 }
 
-func isStreamable(filePath string) bool {
-	return strings.HasSuffix(filePath, ".mkv") ||
-		strings.HasSuffix(filePath, ".mp4") ||
-		strings.HasSuffix(filePath, ".avi") ||
-		strings.HasSuffix(filePath, ".wmv") ||
-		strings.HasSuffix(filePath, ".m4v")
-}
-
 func ensureDir(dirName string) error {
 	if _, err := os.Stat(dirName); os.IsNotExist(err) {
 		err := os.Mkdir(dirName, 0755)