using UnityEngine;
using System;
using System.Collections.Generic;
using System.Collections;


public class PrologueManager : MonoBehaviour
{
    [SerializeField] private Transform playerNewGameStartPosition;
    [SerializeField] private GameObject vechicleDrivable;
    [SerializeField] private GameObject vechicleStatic;
    public bool isLoadingPrologueRelated;

    public PrologueStorylineStatesData prologueStorylineStatesData;
    public PrologueEventsData prologueEventsData;
    public ProloguePickupsData prologuePickupsData;
    public PrologueSaveTriggersData prologueSaveTriggersData;

    public enum PrologueStorylineState
    {
        CheckLoad,
        InsideCar,
        ExitedCar,
        OutsideHouse
    }

    public PrologueStorylineState prologueStorylineState = PrologueStorylineState.CheckLoad;

    private void Awake()
    {
        GameManager.GetInstance().prologueManager = this;
        if (LoadManager.GetInstance().LoadingGame)
        {
            isLoadingPrologueRelated = true;
        }
    }

    public void Activate()
    {
        Debug.Log("Prologue Manager Activated: Initializing events.");
        //StartCoroutine(CheckIfLoadIsCompleted());
        UpdateStoryline();
    }

    public void Deactivate()
    {
        Debug.Log("Prologue Manager Deactivated.");

        StopAllCoroutines();
        CleanupPlayerSettings();
        SaveStorylineState();
        NotifyCompletion();
    }

    private IEnumerator CheckIfLoadIsCompleted()
    {
        var loadManager = LoadManager.GetInstance();
        if (loadManager == null)
        {
            Debug.LogError("LoadManager instance is missing!");
            yield break;
        }

        while (loadManager.LoadingGame || loadManager.IsEnteringNewGame)
        {
            yield return null;
        }

        UpdateStoryline();
    }

    public void UpdateStoryline()
    {
        switch (prologueStorylineState)
        {
            case PrologueStorylineState.CheckLoad:
                HandleCheckLoadState();
                break;

            case PrologueStorylineState.InsideCar:
                Debug.Log("Player is inside the car.");
                #region Logic
                //if (isLoadingPrologueRelated) //Handles initialization tasks required after the game has finished loading
                //{
                //    vechicleDrivable.SetActive(true);
                //    vechicleStatic.SetActive(false);
                //    isLoadingPrologueRelated = false;
                //}
                vechicleDrivable.SetActive(true);
                vechicleStatic.SetActive(false);
                SetupPlayer(playerNewGameStartPosition, enableCameraCarMovement: true, enablePlayerController: false, enableSanity: false);
                isLoadingPrologueRelated = false;
                #endregion
                SaveStorylineState();
                break;

            case PrologueStorylineState.ExitedCar:
                Debug.Log("Player has exited the car.");
                #region Logic
                GameProgressManager.GetInstance().playerControllerShouldBeEnabledOnGameLoad = true;
                GameProgressManager.GetInstance().playerCameraControllerShouldBeEnabledOnGameLoad = true;
                prologueStorylineStatesData.prologueUpdateToTheNextStorylineState_Outside.SetActive(true);
                if (isLoadingPrologueRelated) //Handles initialization tasks required after the game has finished loading
                {
                    vechicleDrivable.SetActive(false);
                    vechicleStatic.SetActive(true);
                    isLoadingPrologueRelated = false;
                }
                #endregion
                SaveStorylineState();
                break;

            case PrologueStorylineState.OutsideHouse:
                Debug.Log("Player is outside the house.");
                prologueEventsData.PrologueOutsideHouseEvents.SetActive(true);
                if (isLoadingPrologueRelated) //Handles initialization tasks required after the game has finished loading
                {
                    vechicleDrivable.SetActive(false);
                    vechicleStatic.SetActive(true);
                    isLoadingPrologueRelated = false;
                }
                SaveStorylineState();
                break;

            default:
                Debug.LogWarning($"Unhandled storyline state: {prologueStorylineState}");
                break;
        }
    }

    private void HandleCheckLoadState()
    {
        if (IsInitialCutscenePlayed())
        {
            print("Try Load Saved State");
            TryLoadSavedState();
        }
        else //If started new game for the first time:
        {
            print("New game started");
            PlayInitialCutscene();
            SetupPlayer(playerNewGameStartPosition, enableCameraCarMovement: true, enablePlayerController: false, enableSanity: false);
            prologuePickupsData.mainEntranceKeyPickup.AddKeyToInventory(); //Adds key for to the inventory for the main entrance of the mansion.
            prologueSaveTriggersData.saveTriggerInsideCar_StartOfGame.gameObject.SetActive(true);
            UpdateToTheNextStorylineState();
        }
    }

    private void PlayInitialCutscene()
    {
        Debug.Log("Playing initial cutscene...");
        SetInitialCutscenePlayed(true);
        var gameProgressManager = GameProgressManager.GetInstance();
        gameProgressManager.playerControllerShouldBeEnabledOnGameLoad = false;
        gameProgressManager.playerCameraControllerShouldBeEnabledOnGameLoad = true;
    }

    private void TryLoadSavedState()
    {
        if (Enum.TryParse(GameProgressManager.GetInstance().currentStorylineState, out PrologueStorylineState parsedState))
        {
            prologueStorylineState = parsedState;
            Debug.Log("Try parsing prologue story line state");
            UpdateStoryline();
        }
        else
        {
            Debug.Log("Invalid saved storyline state. Defaulting to CheckLoad.");
            prologueStorylineState = PrologueStorylineState.CheckLoad;
        }
    }

    private void SetupPlayer(Transform newPosition, bool enableCameraCarMovement, bool enablePlayerController, bool enableSanity)
    {
        var playerManager = PlayerManager.GetInstance();
        if (playerManager == null)
        {
            Debug.LogError("PlayerManager instance is missing!");
            return;
        }

        playerManager.DisablePlayerMovement();
        playerManager.playerGameObj.transform.position = newPosition.position;
        playerManager.playerGameObj.transform.rotation = newPosition.rotation;
        playerManager.playerGameObj.transform.SetParent(newPosition);
        playerManager._cameraMovement.cameraCarMovement = enableCameraCarMovement;
        GameProgressManager.GetInstance().playerSanityShouldBeEnabledOnGameLoad = false;
        PlayerManager.GetInstance().playerSanity.enabled = false;

        var gameProgressManager = GameProgressManager.GetInstance();
        gameProgressManager.playerControllerShouldBeEnabledOnGameLoad = enablePlayerController;
    }

    private void CleanupPlayerSettings()
    {
        var playerManager = PlayerManager.GetInstance();
        if (playerManager != null)
        {
            playerManager._cameraMovement.cameraCarMovement = false;
            playerManager.playerGameObj.transform.SetParent(null);
        }

        // Add other player cleanup tasks here
    }

    private void SaveStorylineState()
    {
        GameProgressManager.GetInstance().currentStorylineState = prologueStorylineState.ToString();
    }

    private void NotifyCompletion()
    {
        GameManager.GetInstance().OnStorySectionComplete(GameManager.StoryState.Prologue);
    }

    private bool IsInitialCutscenePlayed() => GameProgressManager.GetInstance().initialCutscenePlayed;

    private void SetInitialCutscenePlayed(bool value) => GameProgressManager.GetInstance().initialCutscenePlayed = value;

    public void UpdateToTheNextStorylineState()
    {
        PrologueStorylineState[] allStates = (PrologueStorylineState[])Enum.GetValues(typeof(PrologueStorylineState));
        int currentIndex = Array.IndexOf(allStates, prologueStorylineState);

        if (currentIndex < allStates.Length - 1)
        {
            prologueStorylineState = allStates[currentIndex + 1];
            UpdateStoryline();
        }
        else
        {
            Debug.Log("Prologue storyline is complete.");
        }
    }
}
[Serializable]
public class PrologueStorylineStatesData
{
    public GameObject prologueUpdateToTheNextStorylineState_Outside;
}

[Serializable]
public class PrologueEventsData
{
    public GameObject PrologueOutsideHouseEvents;
}

[Serializable]
public class ProloguePickupsData 
{
    public KeyPickup mainEntranceKeyPickup;
}

[Serializable]
public class PrologueSaveTriggersData 
{
    public SaveTrigger saveTriggerInsideCar_StartOfGame;
}