using System.Collections;
using System.Collections.Generic;
using Unity.Collections;
using UnityEditor;
using UnityEngine;
using UnityEngine.TextCore.Text;


namespace FreeD
{
    [RequireComponent(typeof(Camera))]
    [ExecuteInEditMode]
    public class FreeDReceiver : MonoBehaviour
    {
        
        public enum CameraModel
        {
            UE150,
            UE100
        }

        [Header("Camera Model")]
        public CameraModel cameraModel = CameraModel.UE150;

        [Header("Zoom Calibration")]
        // ZOOM KURVA
        public AnimationCurve zoomCurve = AnimationCurve.Linear(0f, 1f, 1f, 1f);
        //
        public float freedZoomMin = 1365f;
        public float freedZoomMax = 4049f;
        public float focalLengthMin = 16.99f;
        public float focalLengthMax = 328.99f;
        public int cameraId;

        [Header("Listening on port")]
        public int listeningPort = 40_000;
        [Tooltip("Run the server in edit mode")]
        public new bool runInEditMode = true;
        [Tooltip("Show received messages in Unity console")]
        public bool showPacketInConsole = true;
        private string latestMessage;
        [Tooltip("Apply the values received to the gameObject")]
        public bool apply = true;

        FreeDServer server;
        Packet packet;
        public Packet lastPacket;

        void OnEnable()
        {
            if (!Application.isPlaying && !runInEditMode) return;
            server = FreeDServer.Get(listeningPort);
            server.received += OnPacketReceived;
            SetUpZoomCurve();
        }

        void OnDisable()
        {
            if (server == null) return;
            server.received -= OnPacketReceived;
            server.Stop();
        }

        // ZOOM SAKER
        void OnValidate()
        {
            SetUpZoomCurve();
        }

        void SetUpZoomCurve()
        {
            zoomCurve = new AnimationCurve();

            if (cameraModel == CameraModel.UE150)
            {
                // Kamera 1 och 2 - lägg till mätpunkter här
                zoomCurve.AddKey(0.000f, 16.99f);   // zoom 1365
                zoomCurve.AddKey(0.018f, 17.997f);  // zoom 1413
                zoomCurve.AddKey(0.119f, 26.2f);    // zoom 1688
                zoomCurve.AddKey(0.479f, 64.0f);    // zoom 2671
                zoomCurve.AddKey(0.600f, 72.0f);    // zoom 3000
                zoomCurve.AddKey(1.000f, 328.99f);  // zoom 4094 - ännu ej mätt
            }
            else if (cameraModel == CameraModel.UE100)
            {
                // Kamera 3
                zoomCurve.AddKey(0.000f, 3.98f);    // zoom 1365
                zoomCurve.AddKey(0.085f, 5.25f);    // zoom 1596
                zoomCurve.AddKey(0.550f, 17.80f);   // zoom 2866
                zoomCurve.AddKey(0.791f, 32.54f);   // zoom 3510
            }
        }

        private void OnPacketReceived(Packet packet)
        {
            if (packet.Id != cameraId) return;

            this.packet = packet;
            if (showPacketInConsole)
                latestMessage = $"Receiving Camera ID {packet.Id}: {packet.Id},{packet.Pan},{packet.Tilt},{packet.Roll},{packet.PosZ},{packet.PosX},{packet.PosY},{packet.Zoom},{packet.Focus}";
        }

        void Update() 
        {
            if (!Application.isPlaying && !runInEditMode) return;
            if (packet == null) return;
            lastPacket = packet;
            if (!apply) return;
            

            //transform.localPosition = new Vector3(packet.PosX / 1000f, packet.PosY / 1000f, -packet.PosZ / 1000f);
            transform.localRotation = Quaternion.identity;
            transform.Rotate(Vector3.up, packet.Pan);
            //transform.Rotate(Vector3.up, 90f);
            transform.Rotate(Vector3.right, -packet.Tilt);
            transform.Rotate(Vector3.forward, -packet.Roll);

            var camera = GetComponent<Camera>();
            if (camera != null)
            {
                //if(packet.Zoom > 0) camera.fieldOfView = (packet.Zoom * ( (19f-169f) / (63f-21f) ) ) + 100f;
//                camera.focusDistance = -packet.Focus / 1000f;
                // ÄNDRA ZOOM 
                
                if (packet.Zoom > 0)
                {
                    //float t = (packet.Zoom - freedZoomMin) / (freedZoomMax - freedZoomMin);
                    //float focal = Mathf.Lerp(focalLengthMin, focalLengthMax, t);
                    //camera.focalLength = Mathf.Clamp(focal, focalLengthMin, focalLengthMax);

                    //zoom kurva
                    float t = (packet.Zoom - freedZoomMin) / (freedZoomMax - freedZoomMin);
                    camera.focalLength = zoomCurve.Evaluate(t);
                }
                Debug.Log($"RAW Zoom: {packet.Zoom}");
              
             
            }
                      
           
            packet = null;
        }

        void OnDrawGizmos()
        {
#if UNITY_EDITOR
            if (!Application.isPlaying)
            {
                UnityEditor.EditorApplication.QueuePlayerLoopUpdate();
                UnityEditor.SceneView.RepaintAll();
            }
#endif
        }

        private void OnGUI()
        {
            Rect rectPosOnScreen = new Rect(0, 10 + (cameraId * 20f), Screen.width, 0.05f * Screen.height);
            if (showPacketInConsole)
            {
                GUIStyle textStyle = new GUIStyle(GUI.skin.label);
                textStyle.normal.textColor = Color.green;
                textStyle.fontSize = 10;
                GUI.Label(rectPosOnScreen, latestMessage, textStyle);
            }
            else
            {
                GUI.Label(rectPosOnScreen, "");
            }
        }

    }


#if UNITY_EDITOR
    [CustomEditor(typeof(FreeDReceiver))]
    public class FreeDReceiverEditor : Editor
    {
        public override void OnInspectorGUI()
        {

            FreeDReceiver myScript = (FreeDReceiver)target;

            if (myScript.enabled)
            {
                if (GUILayout.Button($"Stop Receiving from Camera ID {myScript.cameraId}"))
                {
                    myScript.enabled = false;
                    myScript.apply= false;
                }
            }
            else
            {
                if (GUILayout.Button($"Start Receiving from Camera ID {myScript.cameraId}"))
                {
                    myScript.enabled = true;
                    myScript.apply = true;
                }
            }

            DrawDefaultInspector();
        }
    }
#endif

}