Реализовано кеширование проверенных плейлистов, при включенном кеше -r теперь не учитывает только некешированные из ini-файла

app/checker/checker.go

@@ -12,7 +12,9 @@ import (
 	"axenov/iptv-checker/app/playlist"
 	"axenov/iptv-checker/app/tagfile"
 	"axenov/iptv-checker/app/utils"
+	"context"
 	"crypto/tls"
+	"encoding/json"
 	"io"
 	"log"
 	"maps"
@@ -26,7 +28,10 @@ import (
 	"time"
 )
 
-var tagBlocks []tagfile.TagBlock
+var (
+	tagBlocks []tagfile.TagBlock
+	ctx       = context.Background()
+)
 
 // PrepareListsToCheck готовит список плейлистов для проверки
 func PrepareListsToCheck(files []string, urls []string, codes []string) []playlist.Playlist {
@@ -68,7 +73,19 @@ func PrepareListsToCheck(files []string, urls []string, codes []string) []playli
 				lists = append(lists, list)
 			}
 		} else {
-			lists = slices.Collect(maps.Values(ini.Lists))
+			if app.Config.Cache.IsActive {
+				cachedLists := getCachedPlaylists()
+				for key := range ini.Lists {
+					if _, ok := cachedLists[key]; ok {
+						continue
+					}
+					lists = append(lists, ini.Lists[key])
+				}
+				log.Printf("Found %d cached playlists\n", len(cachedLists))
+			} else {
+				lists = slices.Collect(maps.Values(ini.Lists))
+			}
+
 			if int(app.Args.RandomCount) > 0 && int(app.Args.RandomCount) <= len(lists) {
 				rand.Shuffle(len(lists), func(i int, j int) { lists[i], lists[j] = lists[j], lists[i] })
 				lists = lists[:app.Args.RandomCount]
@@ -79,17 +96,31 @@ func PrepareListsToCheck(files []string, urls []string, codes []string) []playli
 	return lists
 }
 
+// getCachedPlaylists возвращает из кеша проверенные ранее плейлисты
+func getCachedPlaylists() map[string]playlist.Playlist {
+	result := make(map[string]playlist.Playlist)
+	keys := app.Cache.Keys(ctx, "*")
+	for _, key := range keys.Val() {
+		value := app.Cache.Get(ctx, key).Val()
+		var pls playlist.Playlist
+		_ = json.Unmarshal([]byte(value), &pls)
+		result[pls.Code] = pls
+	}
+	return result
+}
+
 // CheckPlaylists проверяет плейлисты и возвращает их же с результатами проверки
 func CheckPlaylists(lists []playlist.Playlist) (int, int) {
-	step, onlineCount, offlineCount := 0, 0, 0
 	count := len(lists)
-	tagBlocks = tagfile.Init(app.Args.TagsPath)
-
 	if count == 0 {
 		log.Println("There are no playlists to check")
 		os.Exit(0)
 	}
 
+	log.Printf("%d playlists will be checked\n", len(lists))
+	step, onlineCount, offlineCount := 0, 0, 0
+	tagBlocks = tagfile.Init(app.Args.TagsPath)
+
 	for idx := range lists {
 		pls := lists[idx]
 		step++
@@ -127,6 +158,21 @@ func CheckPlaylists(lists []playlist.Playlist) (int, int) {
 		pls = CheckChannels(pls)
 
 		lists[idx] = pls
+
+		if app.Config.Cache.IsActive {
+			jsonBytes, err := json.Marshal(pls)
+			if err != nil {
+				log.Printf("Error while saving playlist to cache: %s", err)
+			}
+
+			ttl := time.Duration(app.Config.Cache.Ttl) * time.Second
+			written := app.Cache.Set(ctx, pls.Code, string(jsonBytes), ttl)
+			if written.Err() != nil {
+				log.Printf("Error while saving playlist to cache: %s", err)
+			}
+
+			log.Println("Cached sucessfully")
+		}
 	}
 
 	return onlineCount, offlineCount
@@ -188,7 +234,7 @@ func CheckChannels(pls playlist.Playlist) playlist.Playlist {
 			tvChannel.ContentType = resp.Header.Get("Content-Type")
 			bodyBytes, _ := io.ReadAll(resp.Body)
 			bodyString := string(bodyBytes)
-			resp.Body.Close()
+			_ = resp.Body.Close()
 			contentType := http.DetectContentType(bodyBytes)
 
 			isContentBinary := strings.Contains(contentType, "octet-stream") ||