using Assets.Scripts.Enums;
using Assets.Scripts.Helpers;
using System;
using System.Collections;
using System.ComponentModel.Design;
using Unity.VisualScripting;
using UnityEngine;
using UnityEngine.InputSystem;
using UnityEngine.Tilemaps;

[RequireComponent(typeof(Rigidbody2D))]
public class PlayerController : MonoBehaviour
{
    public float moveSpeed = 5f;
    public float maxFallSpeed = -20f;
    public float maxFallSpeedDamge = -10f;
    private float maxFallSpeedCurrent = 0f;
    Vector2 moveInput;

    [NonSerialized]
    public Rigidbody2D rb;
    Animator animator;
    Animator animator_rotor;
    public GameObject rotorGO;
    TouchingDirections touchingDirections;
    [NonSerialized]
    public Damageable health;

    // Time it takes to drill
    public float drillingTime = 1f;
    private float timeSinceDrill = 0f;

    [SerializeField]
    private bool _isMoving;
    public bool IsMoving
    {
        get { return _isMoving; }
        private set
        {
            _isMoving = value;
            animator.SetBool(AnimationStrings.Player.isMoving, value);
        }
    }

    [SerializeField]
    private bool _isFlying;
    public bool IsFlying
    {
        get { return _isFlying; }
        private set
        {
            _isFlying = value;
            animator.SetBool(AnimationStrings.Player.isFlying, value);
            animator_rotor.SetBool(AnimationStrings.Player.isFlying, value);
        }
    }
    [SerializeField]
    private bool _isDrilling;
    public bool IsDrilling
    {
        get { return _isDrilling; }
        set
        {
            _isDrilling = value;
            //animator.SetBool(AnimationStrings.Player.isDrilling, value);
        }
    }

    private bool _isFacingRight = true;

    public bool IsFacingRight
    {
        get { return _isFacingRight; }
        set
        {
            if (_isFacingRight != value)
            {
                transform.localScale *= new Vector2(-1, 1);
            }
            _isFacingRight = value;
        }
    }

    public bool CanMove
    {
        get
        {
            return animator.GetBool(AnimationStrings.canMove) && !PauseMenu.GameIsPaused && !IsDrilling;
        }
    }



    private void Awake()
    {
        rb = GetComponent<Rigidbody2D>();
        animator = GetComponent<Animator>();
        animator_rotor = rotorGO.GetComponent<Animator>();
        touchingDirections = GetComponent<TouchingDirections>();
        health = GetComponent<Damageable>();
        if (SaveSystem.isGameLoaded)
        {
            GameObject uiManager = GameObject.Find("GameManager");
            uiManager.GetComponent<GameManager>().GameLoaded();
            SaveData save = SaveSystem.LoadPlayer();
            health.MaxHealth = save.maxHealth;
            health.Health = save.health;
            transform.position = VectorHelper.ConvertToVector3(save.position);
            rb.velocity = VectorHelper.ConvertToVector2(save.velocity);
            SaveSystem.isGameLoaded = false;
        }
    }

    private void FixedUpdate()
    {
        if (CanMove)
        {
            if (moveInput.y == 0)
            {
                if (rb.velocity.y <= maxFallSpeed)
                {
                    // max fall speed, dont accelerate more
                    rb.velocity = new Vector2(moveInput.x * moveSpeed, maxFallSpeed);
                }
                else
                {
                    // normal fall
                    rb.velocity = new Vector2(moveInput.x * moveSpeed, rb.velocity.y);
                }
            }
            else
            {
                if (rb.velocity.y < 0 && moveInput.y > 0)
                {
                    // falling but moving upwards
                    rb.velocity = new Vector2(moveInput.x * moveSpeed, (moveInput.y * moveSpeed) + rb.velocity.y);
                }
                else
                {
                    // moving upwards no falling
                    rb.velocity = new Vector2(moveInput.x * moveSpeed, (moveInput.y * moveSpeed));
                }
            }
            if (touchingDirections.IsGrounded)
            {
                if (maxFallSpeedCurrent < maxFallSpeedDamge)
                {
                    TakeFallDamage(Math.Abs((int)maxFallSpeedCurrent));
                    maxFallSpeedCurrent = 0;
                }
            }
            else if (IsFlying)
            {
                maxFallSpeedCurrent = rb.velocity.y;
            }
            else
            {
                if (maxFallSpeedCurrent > rb.velocity.y)
                {
                    maxFallSpeedCurrent = rb.velocity.y;
                }
            }
            if (touchingDirections.IsGrounded && moveInput.y < 0 && !IsDrilling)
            {
                //IsDrilling = true;
                Drill(DrillDirection.Down);
            }

            if (touchingDirections.IsGrounded && moveInput.x != 0 && !IsDrilling)
            {
                if (touchingDirections.IsAtWallLeft && moveInput.x < 0)
                {
                    Drill(DrillDirection.Left);
                }
                else if (touchingDirections.IsAtWallRight && moveInput.x > 0)
                {
                    Drill(DrillDirection.Right);
                }
            }
        }
        if (IsDrilling)
        {
            rb.velocity = Vector2.zero;
            if (timeSinceDrill > drillingTime)
            {
                IsDrilling = false;
                timeSinceDrill = 0;
            }
            else
            {
                timeSinceDrill += Time.deltaTime;
            }
        }
    }

    public void OnMove(InputAction.CallbackContext context)
    {
        moveInput = context.ReadValue<Vector2>();

        IsMoving = moveInput.x != 0;

        IsFlying = (moveInput.y != 0);

        SetFacingDirection(moveInput);
        if (IsDrilling)
        {
            IsMoving = false;
            IsFlying = false;
            //moveInput = Vector2.zero;

        }
    }

    private void Drill(DrillDirection drillDirection)
    {
        IsDrilling = true;
        ContactPoint2D[] contactPoints = new ContactPoint2D[1];
        Debug.Log("drillDirection: " + drillDirection.ToString());
        //rb.GetContacts(contactPoints);
        switch (drillDirection)
        {
            case DrillDirection.Left:
                touchingDirections.wallHitsLeft[0].collider.GetContacts(contactPoints);
                break;
            case DrillDirection.Right:
                touchingDirections.wallHitsRight[0].collider.GetContacts(contactPoints);
                break;
            case DrillDirection.Down:
                touchingDirections.groundHits[0].collider.GetContacts(contactPoints);
                break;
        }
        CharacterEvents.characterDrill.Invoke(contactPoints[0], drillDirection);
    }

    //private void DrillLeftOrRight()
    //{
    //    ContactPoint2D[] contactPoints = new ContactPoint2D[1];
    //    touchingDirections.wallHits[0].collider.GetContacts(contactPoints);
    //    CharacterEvents.characterDrillLeftOrRight.Invoke(contactPoints[0]);
    //}

    private void SetFacingDirection(Vector2 moveInput)
    {
        if (moveInput.x > 0 && !IsFacingRight)
        {
            IsFacingRight = true;
        }
        else if (moveInput.x < 0 && IsFacingRight)
        {
            IsFacingRight = false;
        }
    }

    public void TakeDamage(int damage)
    {
        health.Hit(damage);
    }

    public void TakeFallDamage(int fallDamage)
    {
        TakeDamage(fallDamage);
    }

    //public void OnRun(InputAction.CallbackContext context)
    //{
    //    if (context.started) // Button pressed
    //    {
    //        _isRunning = true;
    //    } 
    //    else if (context.canceled) // Button released
    //    {
    //        _isRunning = false;
    //    }

    //}
}