using System;
using DungeonSelection;
using Unity.VisualScripting;
using UnityEngine;
using UnityEngine.UIElements;

public class EndGameController : MonoBehaviour
{
    public static event Action LeaveDungeonClicked;
    public static event Action<string, int> SaveScoreClicked;
    
    private const string WIN_MESSAGE = "You Won";
    private const string DIE_MESSAGE = "You Died";
    [SerializeField] private Sprite diamondSprite;
    [SerializeField] private Sprite healthSprite;
    private Label _title;
    private Label _message;
    private Label _diamondPoints;
    private Label _pointsFromHealth;
    private Label _scoreSum;
    private VisualElement _diamondImageBox;
    private VisualElement _healthImageBox;
    private TextField _nameField;
    private Button _save;
    private Button _close;

    private int _score;
    
    private void OnEnable()
    {
        VisualElement root = GetComponent<UIDocument>().rootVisualElement;

        _save = root.Q<Button>("Save");
        _save.clicked += HandleSaveClicked;
        _close = root.Q<Button>("Close");
        _close.clicked += HandleCloseClicked;
        _diamondPoints = root.Q<Label>("PointsFromDiamond");
        _pointsFromHealth = root.Q<Label>("PointsFromHealth");
        _scoreSum = root.Q<Label>("ScoreSum");
        _diamondImageBox = root.Q<VisualElement>("DiamondImageBox");
        _healthImageBox = root.Q<VisualElement>("HealthImageBox");
        _title = root.Q<Label>("Title");
        _message = root.Q<Label>("Message");
        _nameField = root.Q<TextField>("NameField");
        _nameField.RegisterCallback<ChangeEvent<string>>(evt => { nameEdited(evt.newValue); });
        
        Image diamondImage = new Image();
        diamondImage.image = diamondSprite.texture;
        diamondImage.scaleMode = ScaleMode.ScaleToFit;
        _diamondImageBox.Add(diamondImage);

        Image healthImage = new Image();
        healthImage.image = healthSprite.texture;
        healthImage.scaleMode = ScaleMode.ScaleToFit;
        _healthImageBox.Add(healthImage);
    }

    public void PopulateEndOfGamePopUp(EndOfGameEventArgs args)
    {
        if (args.Died)
        {
            _title.text = DIE_MESSAGE;
        }
        else
        {
            _title.text = WIN_MESSAGE;
        }

        _message.text = args.Message;
        _diamondPoints.text = $"{args.Diamonds} X {args.DiamondsMultiplier}";
        _pointsFromHealth.text = args.PointsFromHealth.ToString();
        _score = args.FinalScore;
        _scoreSum.text = _score.ToString();
    }
    
    private void HandleCloseClicked()
    {
        LeaveDungeonClicked?.Invoke();
    }

    private void HandleSaveClicked()
    {
        SaveScoreClicked?.Invoke(_nameField.value, _score);
        LeaveDungeonClicked?.Invoke();
    }

    private void nameEdited(string text)
    {
        if (text == String.Empty)
        {
            _save.SetEnabled(false);
        }
        else
        {
            _save.SetEnabled(true);
        }
    }
}