using TMPro;
using UnityEngine;
using UnityEngine.Playables;
using UnityEngine.UI;

/// <summary>
/// Manager infopage for the Courses
/// </summary>
public class CourseActivityScreen : MonoBehaviour
{
    // vvv TEMPORARY STUFF vvv
    public GameObject playButton;
    public GameObject previewButton;
    // ^^^ TEMPORARY STUFF ^^^

    public GameObject restartButton;
    /// <summary>
    /// Reference to the courses
    /// </summary>
    public CourseList courseList;

    /// <summary>
    /// Reference to the course progress
    /// </summary>
    private PersistentDataController.SavedCourseProgress progress;

    /// <summary>
    /// Title Display
    /// </summary>
    public TMP_Text title;

    /// <summary>
    /// Description Display
    /// </summary>
    public TMP_Text description;

    /// <summary>
    /// Image Display (Thumbnail)
    /// </summary>
    public Image courseImage;

    /// <summary>
    /// Progress bar Display
    /// </summary>
    public Slider progressBar;

    /// <summary>
    /// Reference to the progressBar gameObject
    /// </summary>
    public GameObject progressObject;

    /// <summary>
    /// Reference to the 'completed' gameObject
    /// </summary>
    public GameObject completedObject;

    /// <summary>
    /// Reference to the scene playable director
    /// </summary>
    public PlayableDirector directorEnterFromCourseMenu;

    /// <summary>
    /// Sets the infopage for a given course
    /// </summary>
    void Start()
    {
        int index = courseList.currentCourseIndex;
        Course course = courseList.courses[index];

        // vvv TEMPORARY STUFF vvv
        playButton.SetActive(course.theme.modelIndex != ModelIndex.NONE);
        previewButton.SetActive(course.theme.modelIndex == ModelIndex.NONE);
        // ^^^ TEMPORARY STUFF ^^^

        title.text = course.title;
        description.text = course.description;
        courseImage.sprite = course.thumbnail;
        //slider.value = progressValue;

        // Set progress
        PersistentDataController.GetInstance().Load();
        progress = UserList.GetCurrentUser().GetCourseProgress(course.index);
        if (progress != null && course.theme.modelIndex != ModelIndex.NONE)
        {
            progressBar.value = progress.progress;
            if (progress.progress == 1.0f)
            {
                playButton.SetActive(false);
                progressObject.SetActive(false);
                completedObject.SetActive(true);
            }
            if (progress.inUseLearnables > 0)
            {
                restartButton.SetActive(true);
                playButton.transform.Find("Button Text").GetComponent<TMP_Text>().text = "Verder";
            }
            else
            {
                restartButton.SetActive(false);
            }
        }
        else
        {
            progressBar.value = 0.0f;
            restartButton.SetActive(false);
            playButton.transform.Find("Button Text").GetComponent<TMP_Text>().text = "Begin";
        }

        var sys = SystemController.GetInstance();
        if (sys.previousScene == SystemController.GetSceneIndex("Common/Scenes/CoursesMenuScreen"))
            directorEnterFromCourseMenu.Play();
    }

    /// <summary>
    /// Callback to reset and start the course
    /// </summary>
    public void ResetCourseProgress()
    {
        UserList.GetCurrentUser().ResetCourseProgress(progress.courseIndex);
        UserList.Save();
        progressBar.value = 0.0f;
        StartCourse();
    }

    /// <summary>
    /// Callback to start the course
    /// </summary>
    public void StartCourse()
    {
        SystemController.GetInstance().LoadNextScene("Courses/Scenes/CourseScreen");
    }
}