using System.Collections;
using System.Linq;
using System.IO;

using NUnit.Framework;
using TMPro;
using UnityEngine;
using UnityEngine.TestTools;
using UnityEngine.SceneManagement;


public class BackButtonTests
{

    [UnitySetUp]
    public IEnumerator SetupFunction()
    {
        string path = Path.Combine("Assets", "users.json");
        var oneUser = "{\"currentUserIndex\": 0,\"storedUsers\": [{\"username\": \"TEST\",\"avatar\": {\"instanceID\": 40848},\"playtime\": 0.0,\"courses\": [],\"minigames\": []}]}";

        using (StreamWriter writer = new StreamWriter(path))
        {
            writer.Write(oneUser);
        }
        
        SystemController.GetInstance().LoadNextScene("Common/Scenes/MainMenuScreen");
        yield return new WaitForSeconds(0.2f);
        SystemController.GetInstance().LoadNextScene("Common/Scenes/ListMinigamesScreen");
        yield return new WaitForSeconds(0.2f);
    }

    [UnityTest]
    public IEnumerator BackTest()
    {

        var backButton = (BackButton) GameObject.FindObjectOfType(typeof(BackButton));
        backButton.Back();
        yield return new WaitForSeconds(0.2f);

        var mainMenuScreen = (MainMenuScreen) GameObject.FindObjectOfType(typeof(MainMenuScreen));
        Assert.IsNotNull(mainMenuScreen);
    }
}