using UnityEngine;
using Unity.Cinemachine;
using System.Collections;
using Core.SaveLoad;
using Pixelplacement;

public class cameraSwitcher : MonoBehaviour
{
    [SerializeField] private CinemachineCamera virtualCamera;
    [SerializeField] private CinemachineConfiner2D confiner2D;
    [SerializeField] private float zoomOutOrthoSize = 27f;
    [SerializeField] private float normalOrthoSize = 20f;
    [SerializeField] private float transitionDuration = 0.5f; // Duration of the transition
    [SerializeField] private soundBird_FlyingBehaviour flyingBehaviour;
    [SerializeField] private soundBird_TakeOffBehaviour takeOffBehaviour; // New reference
    [SerializeField] private AppleMachine birdStateMachine;

    private int playerInsideCount = 0;
    private Coroutine zoomCoroutine;

    private void OnTriggerEnter2D(Collider2D other)
    {
        if (other.CompareTag("Player"))
        {
            playerInsideCount++;
            if (playerInsideCount == 1 && virtualCamera != null)
            {
                if (zoomCoroutine != null) StopCoroutine(zoomCoroutine);
                zoomCoroutine = StartCoroutine(SmoothOrthoSize(virtualCamera, zoomOutOrthoSize, transitionDuration));
            }
        }
    }

    private void OnTriggerExit2D(Collider2D other)
    {
        if (!gameObject.activeInHierarchy)
            return;
        
        if (other.CompareTag("Player"))
        {
            playerInsideCount--;
            if (playerInsideCount == 0 && virtualCamera != null)
            {
                if (zoomCoroutine != null) StopCoroutine(zoomCoroutine);
                zoomCoroutine = StartCoroutine(SmoothOrthoSize(virtualCamera, normalOrthoSize, transitionDuration));
                if (birdStateMachine.currentState != null)
                {
                    if (birdStateMachine.currentState.name == "SoundBirdFlyAround" && flyingBehaviour != null)
                    {
                        flyingBehaviour.StartLanding();
                    }
                    else if (birdStateMachine.currentState.name == "SoundBirdTakeoff" && takeOffBehaviour != null)
                    {
                        takeOffBehaviour.StartLanding();
                    }
                }
            }
        }
    }

    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);
            yield return null;
        }
        cam.Lens.OrthographicSize = targetSize;
        if (confiner2D != null)
        {
            confiner2D.InvalidateBoundingShapeCache();
        }
    }
}