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


namespace Moloch
{
    public class CameraManager : MonoBehaviour
    {
        [SerializeField] public List<CinemachineVirtualCamera> m_VirtualCameras = new List<CinemachineVirtualCamera>();
        private CinemachineBrain m_Brain;
        private CinemachineBlend m_DefaultBlend;
        private int m_CameraWaitPeriod;

        [Range(1, 30)]
        [SerializeField] public int m_MinWaitPeriod;

        [Range(1, 30)]
        [SerializeField] public int m_MaxWaitPeriod;

        private void OnEnable()
        {
            m_Brain = GetComponent<CinemachineBrain>();

            if (m_VirtualCameras.Count == 0)
                Debug.LogError("No virtual cameras found");
        }

        private void Start()
        {
            SetInitialCameraState();
            SetNewWaitPeriod();
            StartCoroutine(StartCameraCycle());
        }

        private IEnumerator StartCameraCycle()
        {
            yield return new WaitForSecondsRealtime(m_CameraWaitPeriod);
            SetNewWaitPeriod();
            SetNewCamera();
            StartCoroutine(StartCameraCycle());
        }

        private void SetInitialCameraState()
        {
            // Sets all cameras to false, bar the first one in the list
            foreach (var cam in m_VirtualCameras)
            {
                cam.Priority = 2;
            }
            m_VirtualCameras[0].Priority = 1;
        }

        private void SetNewWaitPeriod()
        {
            m_CameraWaitPeriod = (int)Random.Range(m_MinWaitPeriod, m_MaxWaitPeriod);
        }

        private void SetNewCamera()
        {
            // Logic to set new camera
            // List to store inactive cameras
            List<CinemachineVirtualCamera> inactiveCameras = new List<CinemachineVirtualCamera>();

            // Find inactive cameras
            foreach (var cam in m_VirtualCameras)
            {
                if (cam.Priority == 2)
                {
                    inactiveCameras.Add(cam);
                }
            }

            // If there are inactive cameras, choose one randomly and activate it
            if (inactiveCameras.Count > 0)
            {
                // Select a random index from the list of inactive cameras
                int randomIndex = Random.Range(0, inactiveCameras.Count);

                // Deactivate the currently active camera
                foreach (var cam in m_VirtualCameras)
                {
                    if (cam.Priority == 1)
                    {
                        cam.Priority = 2;
                        break; // Stop iterating once we deactivate one camera
                    }
                }

                // Activate the randomly chosen inactive camera
                inactiveCameras[randomIndex].Priority = 1;
            }
            else
            {
                // If all cameras are active, log a warning
                Debug.LogWarning("All cameras are already active.");
            }
        }
    }

}