using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

/// <summary>
/// Class to handle panel with only image and webcam
/// </summary>
public class PanelWithImage : MonoBehaviour
{
    /// <summary>
    /// Reference to the feedback progress bar
    /// </summary>
    public GameObject feedbackProgressObject;

    /// <summary>
    /// Reference to the object containing the message for when the course is loaded in preview mode
    /// </summary>
    public GameObject previewMessage;

    /// <summary>
    /// True if the course is loaded in preview mode, false otherwise
    /// </summary>
    public bool isPreview;

    /// <summary>
    /// Reference to the image for displaying the current words sprite
    /// </summary>
    public Transform signImageContainer;

    /// <summary>
    /// Reference to the prefab for displaying the image
    /// </summary>
    public GameObject signImagePrefab;

    /// <summary>
    /// Reference to the webcam
    /// </summary>
    public RawImage webcamScreen;

    /// <summary>
    /// Reference to the feedback field
    /// </summary>
    public TMP_Text feedbackText;

    /// <summary>
    /// Reference to the progress bar
    /// </summary>
    public Slider feedbackProgressBar;

    /// <summary>
    /// Reference to the progress bar image, so we can add fancy colors
    /// </summary>
    public Image feedbackProgressImage;

    /// <summary>
    /// Reference to the list of learnables
    /// </summary>
    public List<Learnable> signs;

    /// <summary>
    /// Index of the current learnable in the list with learnables
    /// </summary>
    public int currentSignIndex;

    /// <summary>
    /// Update the display of this panel
    /// </summary>
    public void Display()
    {
        Learnable currentSign = signs[currentSignIndex];

        feedbackProgressObject.SetActive(!isPreview);
        previewMessage.SetActive(isPreview);

        GameObject sprite = GameObject.Instantiate(signImagePrefab, signImageContainer);
        sprite.GetComponent<Image>().sprite = currentSign.image;
    }
}