added ability to change simkl rating

SimklFunctions.go

@@ -113,3 +113,50 @@ func (a *App) SimklSyncEpisodes(anime Anime, progress int) interface{} {
 
 	return success
 }
+
+func (a *App) SimklSyncRating(anime Anime, rating int) interface{} {
+	var url string
+	var showWithRating = ShowWithRating{
+		Title: anime.Show.Title,
+		Ids: Ids{
+			Simkl:   anime.Show.Ids.Simkl,
+			Mal:     anime.Show.Ids.Mal,
+			Anilist: anime.Show.Ids.AniList,
+		},
+		Rating: rating,
+	}
+
+	var showWithoutRating = ShowWithoutRating{
+		Title: anime.Show.Title,
+		Ids: Ids{
+			Simkl:   anime.Show.Ids.Simkl,
+			Mal:     anime.Show.Ids.Mal,
+			Anilist: anime.Show.Ids.AniList,
+		},
+	}
+
+	var shows []interface{}
+
+	if rating > 0 {
+		shows = append(shows, showWithRating)
+		url = "https://api.simkl.com/sync/ratings"
+	} else {
+		shows = append(shows, showWithoutRating)
+		url = "https://api.simkl.com/sync/ratings/remove"
+	}
+
+	simklSync := struct {
+		Shows []interface{} `json:"shows" ts_type:"shows"`
+	}{shows}
+
+	respBody := SimklPostHelper(url, simklSync)
+
+	var success interface{}
+
+	err := json.Unmarshal(respBody, &success)
+	if err != nil {
+		log.Printf("Failed at unmarshal, %s\n", err)
+	}
+
+	return success
+}