using System.Collections;
using UnityEngine;
using TMPro;
using UnityEngine.UIElements;

public class DoorInteraction : MonoBehaviour
{
    [SerializeField] private Animator myDoor = null;
    [SerializeField] private string animationFile = "DoorAnimation.013";

    // [SerializeField] private Transform playerCamera = null;
    [SerializeField] private float interactionDistance = 2f;

    [SerializeField] private TabletController tabletController = null;
    [SerializeField] private TabletScript tabletScript = null;
    [SerializeField] private ControlScript controlScript = null;
    // PUZZLES CONFIGS

    // Mines puzzle
    [SerializeField] private int bombs = 9;
    [SerializeField] private int gridSize = 11;
    [SerializeField] private int timeLimitSeconds = 10;

    // Word puzzle
    [SerializeField] private string overrideWord = string.Empty;
    
    // Simon Says puzzle
    [SerializeField] private int simonSaysPuzzleIndex = 0;

    [SerializeField] private TextMeshProUGUI targetDoorText = null;

    [SerializeField] private UnityEngine.UI.Image tabletIcon = null;

    [SerializeField] private GameObject closeTabletPrompt = null;

    public TabletScreen doorPuzzleType = TabletScreen.Mines;

    public TMP_Text interactionPrompt;

    // private bool isTabletOpen = false;

    public bool skipPuzzle = false;
    private bool isBeingLookedAt = false;
    private bool startedPuzzle = false;

    private static int doorCount = 0; // n doors being looked at
    void Awake()
    {
 
        if (interactionPrompt != null && doorCount == 0)
        {
            interactionPrompt.enabled = false;
        }
        closeTabletPrompt.SetActive(false);
    }
    void OnDisable()
    {
        if (interactionPrompt != null)
        {   
           
                interactionPrompt.enabled = false;
        
            
        }
        // set target door text to empty
        if (targetDoorText != null)
        {
            targetDoorText.text = "Target Door: 0";
        }

    }


    private void Update()
    {        
        if (skipPuzzle) {
            // open door animation and delete self
            myDoor.Play(animationFile, 0, 0.0f);
            gameObject.SetActive(false);
        }
        else {
            bool lookedAt = IsPlayerLookingAtDoor();
            if (lookedAt && !isBeingLookedAt)
            {
                isBeingLookedAt = true;
                Debug.Log("Door is being looked at" + gameObject.name);
                doorCount++;
            }
            else if (!lookedAt && isBeingLookedAt)
            {
                isBeingLookedAt = false;
                doorCount--;
            }
            // Debug.Log("Door count: " + doorCount);


       
            if (!tabletController.isShowing && doorCount > 0)
            {
                TextPopUp("Press T to open tablet.");
                tabletIcon.enabled = true;
                // tabletScript.SetScreen(TabletScreen.MainMenu);


            }
            if (tabletController.isShowing && doorCount > 0)
            {
                tabletController.setIsOnMainMenu(true);
                // tabletScript.SetScreen(TabletScreen.MainMenu);
            }
            // if (tabletController.isShowing && doorCount < 1) {
            //     // we can tell to put away the tablet     
            //     if (interactionPrompt != null)
            //     {
            //         interactionPrompt.enabled = true;
            //     }
            //     // TextPopUp("Press T to open and close tablet.");
           
            // }
            if (tabletController.isShowing && lookedAt) {
                // set text on door to be Target Door: 000 (last 3 characters of animation file)
                if (!startedPuzzle) {
                    tabletScript.SetScreen(TabletScreen.MainMenu);
                }
                if (targetDoorText != null)
                {
                    string sceneName = gameObject.scene.name;
                    int sceneNumber = int.Parse(sceneName.Substring(sceneName.Length - 1));
                    targetDoorText.text = "Target Door: " +sceneNumber + animationFile.Substring(animationFile.Length - 2);
                    // Debug.Log("Target Door: " + animationFile.Substring(animationFile.Length - 3));
                }
                // if player is not on main menu and game is not initialized and puzzle has not been started we start the puzzle for this door
                if (!tabletController.isOnMainMenu && controlScript.GameState == EGameState.Uninitialized && !startedPuzzle)
                {
                    StartPuzzle(doorPuzzleType);
                    startedPuzzle = true;
                }
            }
        }
        if (doorCount <= 0 || tabletController.isShowing)
        {
            doorCount = 0;
            tabletIcon.enabled = false;
            if (interactionPrompt != null) {
                interactionPrompt.enabled = false;
            }
        }
        if (doorCount > 0 && !tabletController.isShowing)
        {
            // enable tablet icon on a screen
            tabletIcon.enabled = true;
            if (interactionPrompt != null)
            {
                interactionPrompt.enabled = true;
            }
        }
    }

    private void TextPopUp(string text)
    {
        if (interactionPrompt != null)
        {
        interactionPrompt.text = text;
        interactionPrompt.enabled = true;
        }
    }

    private bool IsPlayerLookingAtDoor()
    {
        Ray ray = Camera.main.ScreenPointToRay(new Vector3(Screen.width / 2, Screen.height / 2, 0));
    
        if (Physics.Raycast(ray, out RaycastHit hit, interactionDistance))
        {
            return hit.collider.gameObject == gameObject;
        }
        return false;
    }

    private void StartPuzzle(TabletScreen screen)
    {
        if (tabletController == null)
        {
            Debug.LogError("TabletController reference is missing.");
            return;
        }

    
        Debug.Log("Starting puzzle");

        // get function to call for the set screen
        switch (screen)
        {
            case TabletScreen.Word:
                tabletScript.SetScreenWord(overrideWord);
                break;
            case TabletScreen.Mines:
                tabletScript.SetScreenMines(gridSize, bombs, timeLimitSeconds);
                break;
            case TabletScreen.MainMenu:
                tabletScript.SetScreen(TabletScreen.MainMenu);
                break;
            case TabletScreen.SimonSays:
                tabletScript.SetScreenSimonSays(simonSaysPuzzleIndex);
                break;
        }

        StartCoroutine(WaitForPuzzleCompletion());
    }

    private IEnumerator WaitForPuzzleCompletion()
    {
        yield return new WaitUntil(() => tabletScript.gameState == PuzzleGameState.Win);
        tabletScript.SetScreen(TabletScreen.Clear);
        closeTabletPrompt.SetActive(true);

        yield return new WaitForSeconds(1.0f);
        // set prompt on screen to close tablet
        myDoor.Play(animationFile, 0, 0.0f);
        startedPuzzle = false;
        // TextPopUp("Press T to Close tablet.");
        tabletScript.gameState = PuzzleGameState.Uninitialized; // reset the game state to default state
        gameObject.SetActive(false);

    }
}