using System;
using System.Collections;
using RR.Common.Managers;
using UnityEngine;
using UnityEngine.UI;
using TMPro;

using RR.Game2D.Core.Managers;

namespace RR.Common.UI
{
    /// <summary>
    /// Контроллер баннера проигрыша.
    /// Модальное окно, которое отображается при поражении игрока.
    /// </summary>
    public class LoseBannerController : Modal
    {
        [Header("Элементы баннера проигрыша")]
        [SerializeField] private TextMeshProUGUI loseText;
        [SerializeField] private TextMeshProUGUI creditText;
        [SerializeField] private Button continueButton;
        [SerializeField] private TextMeshProUGUI continueButtonText;
        [SerializeField] private float continueButtonCountdown = 30f;

        [Header("Тексты")]
        [SerializeField] private string creditTextFormat = "У вас осталось: {0}";

        private PaymentManager _paymentManager;
        private Coroutine _continueCountdownCoroutine;

        /// <summary>
        /// Событие, вызываемое при нажатии "Продолжить" или закрытии баннера.
        /// </summary>
        public event Action ContinueClicked;

        protected override void Awake()
        {
            base.Awake();
            
            if (continueButton)
            {
                continueButton.onClick.AddListener(OnContinueButtonClicked);
            }
        }

        protected override void OnEnable()
        {
            base.OnEnable();
            
            _paymentManager = GameManager.Instance?.Payment;

            if (_paymentManager != null)
            {
                int credits = _paymentManager.CreditsCount;
                if (creditText)
                {
                    creditText.text = string.Format(creditTextFormat, credits);
                }
                _paymentManager.OnCreditAdded.AddListener(UnlockContinueButton);
            }
        }

        protected override void OnDisable()
        {
            // Остановим корутину, если объект деактивируется
            if (_continueCountdownCoroutine != null)
            {
                StopCoroutine(_continueCountdownCoroutine);
                _continueCountdownCoroutine = null;
            }

            if (_paymentManager != null)
            {
                _paymentManager.OnCreditAdded.RemoveListener(UnlockContinueButton);
            }
            
            base.OnDisable();
        }

        /// <summary>
        /// Показывает баннер проигрыша с указанным временем игры.
        /// </summary>
        /// <param name="gameTime">Время игры в секундах</param>
        public void ShowLose(float gameTime)
        {
            if (loseText)
            {
                loseText.text = $"Время игры: {TimeFormatHelper.FormatTime(gameTime)}";
            }
            
            if (creditText && _paymentManager != null)
            {
                creditText.text = string.Format(creditTextFormat, _paymentManager.CreditsCount);
            }

            if (continueButtonCountdown <= 0f)
            {
                ContinueClicked?.Invoke();
                GameManager.Instance?.SetPause(false);
                GameManager.Instance?.LoadScene("MainMenu", false);
                return;
            }

            if (continueButton)
            {
                continueButton.gameObject.SetActive(true);
                continueButton.interactable = SettingsManager.Instance.GetCurrentGameSettings().isFreeGame || (_paymentManager != null && _paymentManager.CreditsCount > 0);
            }

            Open();

            // Остановим предыдущую корутину, если есть
            if (_continueCountdownCoroutine != null)
            {
                StopCoroutine(_continueCountdownCoroutine);
            }

            _continueCountdownCoroutine = StartCoroutine(ContinueCountdownCoroutine(continueButtonCountdown));
        }

        private IEnumerator ContinueCountdownCoroutine(float duration)
        {
            float elapsed = 0f;
            int initialSeconds = Mathf.RoundToInt(duration);
            UpdateContinueText(initialSeconds);

            while (elapsed < duration)
            {
                float startTime = Time.unscaledTime;
                yield return null;

                while (Time.unscaledTime - startTime < 1.0f)
                {
                    yield return null;
                }

                elapsed += 1f;
                int remaining = Mathf.Max(0, Mathf.RoundToInt(duration - elapsed));
                UpdateContinueText(remaining);
            }

            // Таймер истёк — закрываем баннер и выходим в меню
            Close();
            ContinueClicked?.Invoke();
            
            if (GameManager.Instance)
            {
                GameManager.Instance.SetPause(false);
                GameManager.Instance.LoadScene("MainMenu", false);
            }

            _continueCountdownCoroutine = null;
        }

        private void UpdateContinueText(int secondsRemaining)
        {
            if (continueButtonText)
            {
                continueButtonText.text = $"Продолжить? ({secondsRemaining})";
            }
        }

        private void UnlockContinueButton(int newCredits)
        {
            if (_paymentManager == null) return;
            
            if (_paymentManager.IsFreePlayEnabled() || SettingsManager.Instance.GetCurrentGameSettings().isFreeGame)
            {
                if (continueButton)
                {
                    continueButton.interactable = true;
                }
                return;
            }

            if (continueButton)
            {
                continueButton.interactable = _paymentManager.CreditsCount > 0;
            }
        }

        private void OnContinueButtonClicked()
        {
            // При клике на "Продолжить" — остановим таймер и продолжим игру
            if (_continueCountdownCoroutine != null)
            {
                StopCoroutine(_continueCountdownCoroutine);
                _continueCountdownCoroutine = null;
            }

            Close();
            ContinueClicked?.Invoke();
            
            if (GameManager.Instance)
            {
                GameManager.Instance.SetPause(false);
                GameManager.Instance.ContinueGame();
            }
        }
    }
}