using Unity.Cinemachine;
using UnityEngine;
using System.Collections;

public class EagleEyeBehaviour : MonoBehaviour
{
    [SerializeField] private CinemachineCamera virtualCamera;
    [SerializeField] private CinemachineConfiner2D confiner2D;
    [SerializeField] private float zoomOutOrthoSize = 30f;
    [SerializeField] private float normalOrthoSize = 15f;
    private float currentOrthoSize;
    [SerializeField] private float transitionDuration = 0.5f; // Duration of the transition
    [SerializeField] private float eagleEyeDuration = 3f; // Duration to stay zoomed out
    [SerializeField] private bool disablePlayerInputDuringEagleEye = true; // Gate input disable
    [SerializeField] private UnityEngine.UI.Button eagleEyeButton; // Reference to the UI button

    private Coroutine zoomCoroutine;

    public void ActivateEagleEye()
    {
        //Assigns the Virtual Camera and Confiner if not already assigned
        if (virtualCamera == null)
        {
            virtualCamera = FindAnyObjectByType<CinemachineCamera>();
        }
        if (confiner2D == null)
        {
            confiner2D = virtualCamera.GetComponent<CinemachineConfiner2D>();
        }

        // Implementation for activating eagle eye behaviour
        if (disablePlayerInputDuringEagleEye)
        {
            currentOrthoSize = virtualCamera.Lens.OrthographicSize;
        }
        if (eagleEyeButton != null)
        {
            eagleEyeButton.interactable = false;
        }
        if (zoomCoroutine != null) StopCoroutine(zoomCoroutine);
        zoomCoroutine = StartCoroutine(EagleEyeSequence());
    }

    private IEnumerator EagleEyeSequence()
    {
        if (disablePlayerInputDuringEagleEye)
        {
            Core.GameManager.Instance.RequestPause(this); // Disable player input
        }
        yield return StartCoroutine(SmoothOrthoSize(virtualCamera, zoomOutOrthoSize, transitionDuration));
        yield return new WaitForSeconds(eagleEyeDuration);
        float zoomInTarget = disablePlayerInputDuringEagleEye ? currentOrthoSize : normalOrthoSize;
        yield return StartCoroutine(SmoothOrthoSize(virtualCamera, zoomInTarget, transitionDuration));
        if (disablePlayerInputDuringEagleEye)
        {
            Core.GameManager.Instance.ReleasePause(this); // Re-enable player input
        }
        if (eagleEyeButton != null)
        {
            eagleEyeButton.interactable = true;
        }
    }

    private IEnumerator SmoothOrthoSize(CinemachineCamera cam, float targetSize, float duration)
    {
        float startSize = cam.Lens.OrthographicSize;
        float elapsed = 0f;
        while (elapsed < duration)
        {
            elapsed += Time.deltaTime;
            cam.Lens.OrthographicSize = Mathf.Lerp(startSize, targetSize, elapsed / duration);
            if (confiner2D != null)
            {
                confiner2D.InvalidateBoundingShapeCache();
            }
            yield return null;
        }
        cam.Lens.OrthographicSize = targetSize;
        if (confiner2D != null)
        {
            confiner2D.InvalidateBoundingShapeCache();
        }
    }
}