remove double entries in telegram report message

telegram.go

@@ -102,6 +102,8 @@ func sendTelegramAnimeEpMessage(animeEpisodes []model.AnimeEpisode) {
 		return
 	}
 
+	animeEpisodes = RemoveDoubleEntries(animeEpisodes)
+
 	b := new(strings.Builder)
 	if err := TelegramOrganizeMessagePattern.Execute(b, animeEpisodes); err != nil {
 		adverr.Println(adverr.Wrap("could not send telegram message", err))

utils.go

@@ -6,8 +6,11 @@ import (
 	"os"
 	"time"
 
+	"git.milar.in/milarin/anilist"
 	"git.milar.in/milarin/channel"
 	"git.milar.in/milarin/gmath"
+	"git.milar.in/milarin/slices"
+	"git.milar.in/nyaanime/model"
 )
 
 func InitializeRunner() channel.Runner {
@@ -63,3 +66,15 @@ func WaitForNextTelegramSendCycle() {
 		time.Sleep(time.Until(nextCycle))
 	}
 }
+
+func RemoveDoubleEntries(animeEpisodes []model.AnimeEpisode) []model.AnimeEpisode {
+	mapperFunc := func(animeEp model.AnimeEpisode) (anilist.MediaID, model.AnimeEpisode) {
+		return animeEp.Anime.ID, animeEp
+	}
+
+	unmapperFunc := func(id anilist.MediaID, animeEp model.AnimeEpisode) model.AnimeEpisode {
+		return animeEp
+	}
+
+	return slices.OfMap(slices.ToMap(animeEpisodes, mapperFunc), unmapperFunc)
+}