using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Rendering.HighDefinition;
using TMPro;
using UnityEngine.Playables;
using UnityEngine.EventSystems;
using UnityEngine.Localization;

public class UIManager : MonoBehaviour
{
    [Header("Raycast UI")]
    public GameObject raycastDefault;
    public GameObject raycastInteractabe;
    public GameObject raycastLocked;

    [Header("Spherecast UI")]
    public GameObject sphereInteractable;

    #region sanity related
    [Header("Sanity")]
    public RawImage SanityMeterUI; //The RawImage meter UI for the sanity of the player.

    public float minimumAlphaColor = 0.0f; //The minimum alpha color of the sprite.
    public float maximumAlphaColor = 1f; //The maximum alpha color of the sprite.
    public float sanityDuration = 300f; // It must be the same with the _sanity from the sanity script to work.
    [HideInInspector]
    public float startTime;
    #endregion

    #region Notifications
    [Header("Notifications")]
    public GameObject messagesContainer;
    public TextMeshProUGUI MessageText;
    public LocalizedString localizedMessageText;
    //public LocalizedString localizedMessageText;
    public Animator AnimatorLabel;
    public Image labelImage;
    public bool messagesContainerIsEnabled = true;
    #endregion

    #region MouseUI
    [Header("Mouse UI")]
    public GameObject mouseUIMiddle;
    public TextMeshProUGUI mouseUIMiddleText;
    public LocalizedString localizedMouseUIMiddleLabel;
    public GameObject mouseUILeft;
    public TextMeshProUGUI mouseUILeftText;
    public LocalizedString localizedMouseUILeftLabel;
    public GameObject mouseUIRight;
    public TextMeshProUGUI mouseUIRightText;
    public LocalizedString localizedMouseUIRightLabel;
    #endregion

    [Header("Pocket Watch UI")]
    public GameObject pocketWatchIndicationsPanel;

    [Header("Tutorial UI")]
    public Image tutorialHintBackgroundPanel;
    public TextMeshProUGUI tutorialHintText;

    [Header("Important Tutorial Hint")]
    public RawImage importantTutorialHintImage;
    public TextMeshProUGUI importantTutorialHintTitleText;
    public TextMeshProUGUI importantTutorialHintDescriptionText;
    public TextMeshProUGUI importantTutorialHintKeyToPressToClose;
    public PlayableDirector tutorialHintFadeInPlayable;
    public PlayableDirector tutorialHintFadeOutPlayable;

    [HideInInspector] public ImportantTutorialHint currentImportantTutorialHint;

    #region Cutscenes UI
    [Header("Cutscenes UI")]
    public TextMeshProUGUI TitlesUI;
    #endregion

    #region WorldUI
    [Header("World UI")]
    public GameObject worldUI_Icon;
    public bool updateUI = false;
    public bool userInterfaceIsOnScreen;
    #endregion

    public CustomPassVolume customPassUIRenderOnTop;
    public LayerMask customPassUIRenderOnTopObjectsToExclude;

    #region Inventory Related 
    [Header("Inventory UI Related")]
    public CustomPassVolume customPassUIRenderOnTop_UIAndModels;
    public CustomPassVolume CustomPassUIRenderOnTop_UIOnly;
    #endregion

    public EventSystem eventSystem;

    private static UIManager _instance;
    public static UIManager GetInstance() { return _instance; }

    void Awake()
    {
        if (!_instance)
        {
            _instance = this;
        }

        #region Sanity related
        //SanityMeterUI.color = new Color(1f, 1f, 1f, 0f); //Sets the alpha of the image to 0 as default before the game starts. 
        startTime = Time.time;
        #endregion

        #region MouseUI related
        MouseUIMiddleDisable();
        MouseUILeftDisable();
        MouseUIRightDisable();
        #endregion
    }

    private void Update()
    {
        if (userInterfaceIsOnScreen) 
        {
            if (messagesContainerIsEnabled)
            {
                labelImage.enabled = false;
                MessageText.enabled = false;

                tutorialHintBackgroundPanel.enabled = false;
                tutorialHintText.enabled = false;

                messagesContainerIsEnabled = false;
            }
        }
        else 
        {
            if (messagesContainerIsEnabled == false)
            {
                labelImage.enabled = true;
                MessageText.enabled = true;

                tutorialHintBackgroundPanel.enabled = true;
                tutorialHintText.enabled = true;

                messagesContainerIsEnabled = true;
            }
        }
    }

    private void Start()
    {
        eventSystem = FindObjectOfType<EventSystem>();

        //  Force refresh των TMP Texts που έχουν <sprite> tags
        if (tutorialHintText != null) tutorialHintText.ForceMeshUpdate();
        if (importantTutorialHintDescriptionText != null) importantTutorialHintDescriptionText.ForceMeshUpdate();
        if (importantTutorialHintKeyToPressToClose != null) importantTutorialHintKeyToPressToClose.ForceMeshUpdate();

        if (mouseUIMiddleText != null) mouseUIMiddleText.ForceMeshUpdate();
        if (mouseUILeftText != null) mouseUILeftText.ForceMeshUpdate();
        if (mouseUIRightText != null) mouseUIRightText.ForceMeshUpdate();

        if (MessageText != null) MessageText.ForceMeshUpdate();

        Debug.Log(" UIManager TMP Texts refreshed at Start!");
    }

    public IEnumerator DisplayMessage(LocalizedString messageText)
    {
        MessageText.text = messageText.GetLocalizedString(localizedMessageText);
        AnimatorLabel.SetBool("IsFadedIn", true);
        yield return new WaitForSeconds(3.5f);
        AnimatorLabel.SetBool("IsFadedIn", false);
    }

    public void DisplayMessageOnScreen(LocalizedString messageText) 
    {
        StartCoroutine(DisplayMessage(messageText));
    }

    public void DisplayPrompt(LocalizedString promptText) 
    {
        MessageText.text = promptText.GetLocalizedString();
    }

    #region Mouse UI
    #region Mouse UI Activation
    public void MouseUIMiddleDisplay(LocalizedString text) 
    {
        mouseUIMiddle.SetActive(true);
        mouseUIMiddleText.text = localizedMouseUIMiddleLabel.GetLocalizedString();
    }

    public void MouseUILeftDisplay(LocalizedString text)
    {
        mouseUILeft.SetActive(true);
        mouseUILeftText.text = localizedMouseUILeftLabel.GetLocalizedString();
    }

    public void MouseUIRightDisplay(LocalizedString text)
    {
        mouseUIRight.SetActive(true);
        mouseUIRightText.text = localizedMouseUIRightLabel.GetLocalizedString();
    }
    #endregion
    #region MouseUI Disable
    public void MouseUIMiddleDisable()
    {
        mouseUIMiddle.SetActive(false);
        mouseUIMiddleText.text = "";
    }

    public void MouseUILeftDisable()
    {
        mouseUILeft.SetActive(false);
        mouseUILeftText.text = "";
    }

    public void MouseUIRightDisable()
    {
        mouseUIRight.SetActive(false);
        mouseUIRightText.text = "";
    }
    #endregion
    #endregion

    #region World UI Icons
    public void DisableWorldUIIcon() 
    {
        worldUI_Icon.SetActive(false);
    }

    public void DisableUIItemIconVisibility() 
    {
        customPassUIRenderOnTop.gameObject.SetActive(false);
        // Set the camera's culling mask to exclude objects on the specified layer
        Camera.main.cullingMask &= ~customPassUIRenderOnTopObjectsToExclude.value;
    }


    public void EnableUIItemIconVisibility()
    {
        customPassUIRenderOnTop.gameObject.SetActive(true);
        // Set the camera's culling mask to include the objects on the specified layer
        Camera.main.cullingMask |= customPassUIRenderOnTopObjectsToExclude.value;
    }
    #endregion

    #region Important Tutorial Hint
    public void UpdateImportantTutorialHintInput() 
    {
        currentImportantTutorialHint.UpdateTutorialInput();
    }
    #endregion

    public void OpenPocketWatchIndicationsPanel() 
    {
        pocketWatchIndicationsPanel.SetActive(true);
    }

    public void ClosePocketWatchIndicationsPanel()
    {
        pocketWatchIndicationsPanel.SetActive(false);
    }
}