using UnityEngine;
using Pixelplacement;

public class LawnMowerChaseBehaviour : MonoBehaviour
{
    public Spline ChaseSpline;
    public Transform LawnMowerObject;
    public float chaseDuration;
    public float chaseDelay;
    [Range(0, 1)] public float startPercentage; // Exposed in Inspector

    private const float AnchorThreshold = 0.05f;
    private bool _wasAtStart = false;
    private bool _wasAtEnd = false;

    // For initial tween tracking
    private bool _initialTweenActive = true;
    private float _initialTargetAnchor = 1f;

    //Reference to the gardener's gameobject
    public GameObject gardenerRef = null;
    public Animator gardenerAnimator = null;
    public bool gardenerChasing = true;

    void Start()
    {
        LawnMowerObject.position = ChaseSpline.GetPosition(startPercentage);

        float distanceToStart = Mathf.Abs(startPercentage - 0f);
        float distanceToEnd = Mathf.Abs(startPercentage - 1f);

        if (distanceToStart < distanceToEnd)
        {
            // Tween from startPercentage to 1
            _initialTargetAnchor = 1f;
            Tween.Spline(
                ChaseSpline,
                LawnMowerObject,
                startPercentage,
                1,
                false,
                chaseDuration * (1 - startPercentage),
                chaseDelay,
                Tween.EaseInOut,
                Tween.LoopType.None
            );
        }
        else
        {
            // Tween from startPercentage to 0
            _initialTargetAnchor = 0f;
            Tween.Spline(
                ChaseSpline,
                LawnMowerObject,
                startPercentage,
                0,
                false,
                chaseDuration * startPercentage,
                chaseDelay,
                Tween.EaseInOut,
                Tween.LoopType.None
            );
        }
        _initialTweenActive = true;
    }

    void Update()
    {
        float percentage = ChaseSpline.ClosestPoint(LawnMowerObject.position);

        // Handle initial tween completion
        if (_initialTweenActive)
        {
            if (Mathf.Abs(percentage - _initialTargetAnchor) <= AnchorThreshold)
            {
                // Start ping-pong tween between extremes
                StartPingPongTween(_initialTargetAnchor, 1f - _initialTargetAnchor);
                _initialTweenActive = false;
            }
            return; // Don't process flip logic until ping-pong starts
        }

        // Detect start anchor
        if (percentage <= AnchorThreshold)
        {
            if (!_wasAtStart)
            {
                flipSprite();
                _wasAtStart = true;
                _wasAtEnd = false;
            }
        }
        // Detect end anchor
        else if (percentage >= 1f - AnchorThreshold)
        {
            if (!_wasAtEnd)
            {
                flipSprite();
                _wasAtEnd = true;
                _wasAtStart = false;
            }
        }
        else
        {
            _wasAtStart = false;
            _wasAtEnd = false;
        }
    }

    private void StartPingPongTween(float from, float to)
    {
        Tween.Spline(
            ChaseSpline,
            LawnMowerObject,
            from,
            to,
            false,
            chaseDuration,
            0,
            Tween.EaseInOut,
            Tween.LoopType.PingPong
        );
    }

    private void flipSprite()
    {
        if (gardenerRef == null)
        {
            gardenerRef = GameObject.Find("GardenerRunningSprite");
            gardenerAnimator = gardenerRef.GetComponent<Animator>();
        }

        Vector3 scale = LawnMowerObject.transform.localScale;
        Vector3 rotation = LawnMowerObject.transform.eulerAngles;
        scale.x *= -1;
        rotation.z *= -1;
        LawnMowerObject.transform.localScale = scale;
        LawnMowerObject.transform.eulerAngles = rotation;
        if (gardenerChasing == true)
        {
            gardenerRef.transform.localPosition = new Vector3(-6.3f, -2.9f, gardenerRef.transform.localPosition.z);
            gardenerAnimator.SetBool("IsScared?", true);
            gardenerChasing = false;
        }
        else
        {
            gardenerRef.transform.localPosition = new Vector3(8.3f, 3.9f, gardenerRef.transform.localPosition.z);
            gardenerAnimator.SetBool("IsScared?", false);
            gardenerChasing = true;
        }
    }
}