using NUnit.Framework;
using System.Collections;
using System.IO;
using UnityEditor;
using UnityEngine;
using UnityEngine.TestTools;

/// <summary>
/// Test the CourseMenuScreen class
/// </summary>
public class CourseMenuScreenTests
{
    /// <summary>
    /// Setup the environment before each test
    /// </summary>
    [UnitySetUp]
    public IEnumerator SetupFunction()
    {
        string path = $"{Application.persistentDataPath}/wesign_unit_test.json";
        string oneUser = $"{{\"version\":1027,\"users\":[{{\"entries\":[],\"username\":\"TEST\",\"avatarIndex\":0,\"playtime\":0.0,\"minigames\":[],\"courses\":[]}}],\"currentUser\":0,\"currentMinigame\":0,\"currentCourse\":0,\"currentTheme\":0}}";

        File.WriteAllText(path, oneUser);
        PersistentDataController.PATH = path;
        PersistentDataController.GetInstance().Load();
        AssetDatabase.LoadAssetAtPath<UserAvatarList>("Assets/Accounts/ScriptableObjects/UserAvatarList.asset").Awake();
        SystemController.GetInstance().LoadNextScene("Common/Scenes/CoursesMenuScreen");
        yield return new WaitForSeconds(0.2f);
    }

    /// <summary>
    /// Cleanup after testing
    /// </summary>
    [TearDown]
    public void TearDown_CourseMenuScreenTests()
    {
        PersistentDataController.PATH = null;
    }

    /// <summary>
    /// Test to verify the navigation to the list of courses screen.
    /// </summary>
    [UnityTest]
    public IEnumerator GotoListOfCoursesTest()
    {
        var courseMenuScreen = GameObject.FindObjectOfType<CourseMenuScreen>();
        courseMenuScreen.GotoListOfCourses();
        yield return new WaitForSeconds(0.2f);

        var listCoursesScreen = GameObject.FindObjectOfType<ListCoursesScreen>();
        Assert.IsNotNull(listCoursesScreen);
    }

    /// <summary>
    /// Test to verify the navigation to the recent courses screen.
    /// </summary>
    [UnityTest]
    public IEnumerator RecentCoursesTest()
    {
        var courseMenuScreen = GameObject.FindObjectOfType<CourseMenuScreen>();
        Assert.IsNotNull(courseMenuScreen, "Course was not started.");

        var courseList = courseMenuScreen.courseList;
        Assert.IsNotNull(courseList, "Course was not started.");
        courseList.SetCurrentCourse(0);
        SystemController.GetInstance().LoadNextScene("Common/Scenes/CourseActivityScreen");

        yield return new WaitForSeconds(0.2f);

        var courseActivityScreen = GameObject.FindObjectOfType<CourseActivityScreen>();
        Assert.IsNotNull(courseActivityScreen);
        courseActivityScreen.StartCourse();
        yield return new WaitForSeconds(0.5f);

        var templateCourse = GameObject.FindObjectOfType<CoursesController>();
        Assert.IsNotNull(templateCourse);

        templateCourse.ReturnToActivityScreen();
        yield return new WaitForSeconds(0.2f);

        GameObject backbutton = GameObject.Find("ButtonBack");
        Assert.IsNotNull(backbutton);
        backbutton.GetComponent<UnityEngine.UI.Button>().onClick.Invoke();
        yield return null;
    }
}