I want to add to my total score once per level

I want to call a function from another script that adds +1 to my JSON stored int, but I only want to call it once per level and I want to save that I have gotten a "Star" from that one level.

Code (CSharp):

1. public void FillList()
2.     {
3.         foreach (var level in LevelList)
4.         {
5.             GameObject newButton = Instantiate(levelButton) as GameObject;
6.             LevelButton button = newButton.GetComponent<LevelButton>();
7.             button.LevelText.text = level.LevelText;
8.  
9.             if (PlayerPrefs.GetInt("Level" + button.LevelText.text) == 1)
10.             {
11.                 level.Unlocked = 1;
12.                 level.IsInteractable = true;
13.             }
14.  
15.             button.unlocked = level.Unlocked;
16.             button.GetComponent<Button>().interactable = level.IsInteractable;
17.             button.GetComponent<Button>().onClick.AddListener(() => LoadLevel("Level" + button.LevelText.text));
18.  
19.             if (PlayerPrefs.GetFloat("Level" + button.LevelText.text + "_score") > 10)
20.             {
21.                 button.Star1.SetActive(true);
22.                 svm.AddStars(); // THIS ADDS ONE STAR
23.             }
24.  
25.             if (level.Unlocked == 0)
26.             {
27.                 newButton.GetComponent<Image>().sprite = lockSprite;
28.  
29.                 newButton.GetComponentInChildren<Text>().text = "Locked";
30.             }
31.  
32.             newButton.transform.SetParent(Spacer);
33.         }
34.         SaveAll();
35.     }

Code (CSharp):

1. void SaveAll()
2.     {
3.         if (PlayerPrefs.HasKey("Level1"))
4.         {
5.             return;
6.         }
7.         else
8.         {
9.             GameObject[] allButtons = GameObject.FindGameObjectsWithTag("LevelButton");
10.             foreach (GameObject buttons in allButtons)
11.             {
12.                 LevelButton button = buttons.GetComponent<LevelButton>();
13.                 PlayerPrefs.SetInt("Level" + button.LevelText.text, button.unlocked);
14.             }
15.         }
16.     }

 

You've said what you want, but you haven't described a problem or asked a question.