feat(torrent): add helper to detect missing files

README.md

@@ -197,6 +197,7 @@ The following helper functions are available for usage while filtering, usage ex
 IsUnregistered() bool // Evaluates to true if torrent is unregistered in the tracker
 HasAllTags(tags ...string) bool // True if torrent has ALL tags specified
 HasAnyTag(tags ...string) bool // True if torrent has at least one tag specified
+HasMissingFiles() bool // True if any of the torrent's files are missing from disk
 Log(n float64) float64 // The natural logarithm function
 ```
 

config/torrent.go

@@ -2,8 +2,10 @@ package config
 
 import (
 	"math"
+	"os"
 	"strings"
 
+	"github.com/autobrr/tqm/logger"
 	"github.com/autobrr/tqm/regex"
 	"github.com/autobrr/tqm/sliceutils"
 	"github.com/autobrr/tqm/tracker"
@@ -142,6 +144,31 @@ func (t *Torrent) HasAnyTag(tags ...string) bool {
 	return false
 }
 
+func (t *Torrent) HasMissingFiles() bool {
+	if !t.Downloaded {
+		return false
+	}
+
+	log := logger.GetLogger("torrent")
+
+	for _, f := range t.Files {
+		if f == "" {
+			log.Tracef("Skipping empty path for torrent: %s", t.Name)
+			continue
+		}
+
+		if _, err := os.Stat(f); err != nil {
+			if os.IsNotExist(err) {
+				return true
+			}
+			log.Warnf("error checking file '%s' for torrent '%s': %v", f, t.Name, err)
+			continue
+		}
+	}
+
+	return false
+}
+
 func (t *Torrent) Log(n float64) float64 {
 	return math.Log(n)
 }

logger/log.go

@@ -9,7 +9,7 @@ import (
 )
 
 var (
-	prefixLen       = 14
+	prefixLen       = 15
 	loggingFilePath string
 )