using UnityEngine;

[RequireComponent(typeof(Camera))]
public class CameraController : MonoBehaviour
{
    [Header("Target")]
    [Tooltip("If set, camera will follow this Transform. Otherwise it will auto-find the local player.")]
    [SerializeField] private Transform target;

    [Header("Zoom Settings")]
    [SerializeField] private float baseDistance = 6f;
    [SerializeField] private float maxDistance = 12f;
    [SerializeField] private float zoomSpeed = 5f;

    [Header("Follow Settings")]
    [SerializeField] private float followSmoothness = 5f;
    [SerializeField] private Vector3 heightOffset = new Vector3(0, 3f, 0);

    private Rigidbody targetRb;
    private float currentDistance;
    private Camera cam;

    private void Start()
    {
        Application.targetFrameRate = 120;
        cam = GetComponent<Camera>();
        currentDistance = baseDistance;

        if (target != null)
        {
            InitializeTarget();
        }
        else
        {
            Invoke(nameof(FindPlayer), 0.5f);
        }

        transform.parent = null;
    }

    private void InitializeTarget()
    {
        targetRb = target.GetComponent<Rigidbody>();
        if (targetRb == null)
        {
            Debug.LogError("CameraController: Assigned target has no Rigidbody component.", this);
            enabled = false;
            return;
        }
        Debug.Log("CameraController: Following manually assigned target.", this);
    }

    private void FindPlayer()
    {
        foreach (var vehicle in FindObjectsOfType<VehicleController>())
        {
            if (vehicle.FollowTarget != null)
            {
                target = vehicle.FollowTarget;
                InitializeTarget();
                Debug.Log("CameraController: Auto-found player to follow.", this);
                return;
            }
        }

        Debug.LogWarning("CameraController: No player found to follow — disabling.", this);
        enabled = false;
    }

    private void LateUpdate()
    {
        if (target == null || targetRb == null) return;

        float speed = targetRb.velocity.magnitude;
        float targetDistance = Mathf.Lerp(baseDistance, maxDistance, speed / 30f);
        currentDistance = Mathf.Lerp(currentDistance, targetDistance, Time.deltaTime * zoomSpeed);

        Vector3 followPos = target.position + heightOffset - target.forward * currentDistance;
        transform.position = Vector3.Lerp(transform.position, followPos, Time.deltaTime * followSmoothness);
        transform.LookAt(target.position + heightOffset * 0.5f);
    }
}


//using UnityEngine;

//[RequireComponent(typeof(Camera))]
//public class CameraController : MonoBehaviour
//{
//    [Header("Target")]
//    [Tooltip("If set, camera will follow this Transform. Otherwise it will auto-find the local player.")]
//    [SerializeField] private Transform target;

//    [Header("Zoom Settings")]
//    [SerializeField] private float baseDistance = 6f;
//    [SerializeField] private float maxDistance = 12f;
//    [SerializeField] private float zoomSpeed = 5f;

//    [Header("Follow Settings")]
//    [SerializeField] private float followSmoothness = 5f;
//    [SerializeField] private Vector3 heightOffset = new Vector3(0, 3f, 0);

//    private Rigidbody targetRb;
//    private float currentDistance;
//    private Camera cam;

//    private void Start()
//    {
//        Application.targetFrameRate = 120;
//        cam = GetComponent<Camera>();
//        currentDistance = baseDistance;

//        if (target != null)
//        {
//            // User assigned a target in the Inspector
//            InitializeTarget();
//        }
//        else
//        {
//            // No target assigned, try to auto-find after a short delay
//            Invoke(nameof(FindLocalPlayer), 0.5f);
//        }
//        transform.parent = null;
//    }

//    private void InitializeTarget()
//    {
//        targetRb = transform.parent.GetComponent<Rigidbody>();
//        if (targetRb == null)
//        {
//            Debug.LogError("CameraController: Assigned target has no Rigidbody component.", this);
//            enabled = false;
//            return;
//        }
//        Debug.Log("CameraController: Following manually assigned target.", this);
//    }

//    private void FindLocalPlayer()
//    {
//        foreach (var vehicle in FindObjectsOfType<VehicleController>())
//        {
//            // VehicleController inherits NetworkBehaviour, so .Object is the NetworkObject
//            if (vehicle.Object != null && vehicle.Object.HasInputAuthority)
//            {
//                target = vehicle.FollowTarget;
//                InitializeTarget();
//                Debug.Log("CameraController: Auto-found local player to follow.", this);
//                return;
//            }
//        }

//        Debug.LogWarning("CameraController: No local player found to follow — disabling.", this);
//        enabled = false;
//    }

//    private void LateUpdate()
//    {
//        if (target == null || targetRb == null) return;

//        float speed = targetRb.velocity.magnitude;
//        float targetDistance = Mathf.Lerp(baseDistance, maxDistance, speed / 30f);
//        currentDistance = Mathf.Lerp(currentDistance, targetDistance, Time.deltaTime * zoomSpeed);

//        Vector3 followPos = target.position
//                          + heightOffset
//                          - target.forward * currentDistance;

//        transform.position = Vector3.Lerp(transform.position, followPos, Time.deltaTime * followSmoothness);
//        transform.LookAt(target.position + heightOffset * 0.5f);
//    }
//}