using System;
using System.Collections;
using RR.Common.Controls;
using TMPro;
using UnityEngine;
using UnityEngine.InputSystem;

namespace RR.Common.UI
{

public class StatsWindowUIController : MonoBehaviour
{
    [Header("Управление")]
    [SerializeField] private InputActionReference triggerKey;
    
    [Header("Тексты статистики")]
    [SerializeField] private string gamesPlayedTextPrefix = "Игр сыграно: ";
    [SerializeField] private TextMeshProUGUI gamesPlayedText;
    [SerializeField] private string prizesGivenTextPrefix = "Призов выдано: ";
    [SerializeField] private TextMeshProUGUI prizesGivenText;
    
    [Header("UI")]
    [SerializeField] private CanvasGroup canvasGroup;
    [SerializeField] private float fadeDuration = 0.15f;
    
    private string _gamesPlayedKey;
    private string _prizesGivenKey;
    
    private void Awake()
    {
        _gamesPlayedKey = PrizeSystem.key_startsNul;
        _prizesGivenKey = PrizeSystem.key_prizesgivenNul;
        
        if (triggerKey != null) triggerKey.action.performed += Toggle;
        
        gameObject.SetActive(false);
    }

    private void OnDestroy()
    {
        if (triggerKey != null) triggerKey.action.performed -= Toggle;
    }

    private void Toggle(InputAction.CallbackContext ctx)
    {
        if (gameObject.activeSelf)
        {
            Close();
        }
        else
        {
            Open();
        }
    }

    private void Open()
    {
        gameObject.SetActive(true);
        UpdateText();
        StopAllCoroutines();
        StartCoroutine(Fade(0f, 1f, fadeDuration));
    }

    private void Close()
    {
        StopAllCoroutines();
        StartCoroutine(Fade(1f, 0f, fadeDuration, () => { gameObject.SetActive(false); }));
    }

    private void UpdateText()
    {
        if (gamesPlayedText)
        {
            int gamesPlayed = PlayerPrefs.GetInt(_gamesPlayedKey, 0);
            gamesPlayedText.text = gamesPlayedTextPrefix + gamesPlayed;
        }
        
        if (prizesGivenText)
        {
            int prizesGiven = PlayerPrefs.GetInt(_prizesGivenKey, 0);
            prizesGivenText.text = prizesGivenTextPrefix + prizesGiven;
        }
    }
    
    /// <summary>
    /// Метод для плавного перехода (затухания)
    /// </summary>
    /// <param name="from">Начальная прозрачность</param>
    /// <param name="to">Конечная прозрачность</param>
    /// <param name="time">Время перехода</param>
    /// <param name="onDone">Действие при выполнении перехода</param>
    private IEnumerator Fade(float from, float to, float time, System.Action onDone = null)
    {
        if (!canvasGroup) { onDone?.Invoke(); yield break; }
        float t = 0f;
        canvasGroup.alpha = from;
        canvasGroup.blocksRaycasts = true;
        while (t < time)
        {
            t += Time.unscaledDeltaTime;
            canvasGroup.alpha = Mathf.Lerp(from, to, t / time);
            yield return null;
        }
        canvasGroup.alpha = to;
        canvasGroup.blocksRaycasts = to > 0.99f;
        onDone?.Invoke();
    }
}
} // namespace RR.Common.UI