using Cinemachine;

using PMaker.DependencyInjection;

using StarterAssets;

using UniRx;
using UniRx.Triggers;

using UnityEngine;
using UnityEngine.InputSystem;

public class FirstPersonLogic : SingletonMonobehaviour
{
    [SerializeField]
    private StarterAssetsInputs _starterAssetsInputs;
    public FirstPersonController personController;
    public CinemachineVirtualCamera virtualCamera;

    public Transform cameraRoot;

    private void Reset()
    {
        this._starterAssetsInputs = this.GetComponentInChildren<StarterAssetsInputs>();
        this.personController = GetComponentInChildren<FirstPersonController>();
        this.virtualCamera = GetComponentInChildren<CinemachineVirtualCamera>();
        this.cameraRoot = this.virtualCamera.Follow;
    }

    public int min = 20;
    public int max = 40;
    public int zoomSpeed = 2;


    private Vector3 defaultPos;
    private Quaternion defaultRot;
    private Quaternion defaultCameraRot;
    private LensSettings defaultLens;


    public Vector3 Position
    {
        get => this.personController.transform.position;
        set => this.personController.transform.position = value;
    }

    public Vector3 FacingAngle
    {
        get
        {
            return new Vector3()
            {
                x = this.cameraRoot.transform.localRotation.x,
                y = this.personController.transform.localRotation.y,
            };
        }

        set
        {
            this.cameraRoot.transform.localRotation = Quaternion.Euler(value.x, 0.0f, 0.0f);
            this.personController.transform.localRotation = Quaternion.Euler(0.0f, value.y, 0.0f);
            this.personController.CinemachineTargetPitch = value.x;
        }
    }

    private void Start()
    {
        defaultPos = this.personController.transform.localPosition;
        defaultRot = this.personController.transform.localRotation;
        defaultCameraRot = this.cameraRoot.transform.localRotation;
        defaultLens = this.virtualCamera.m_Lens;
        Debug.Log(defaultPos);
        Debug.Log(defaultRot);

        this.UpdateAsObservable()
    .Subscribe(_ => {
        if (Mouse.current.rightButton.isPressed)
        {
            _starterAssetsInputs.cursorInputForLook = true;
        }
        else
        {
            _starterAssetsInputs.cursorInputForLook = false;
            _starterAssetsInputs.look = Vector2.zero;
        }
    })
    .AddTo(this);
    }

    void Update()
    {
        var value = Mouse.current.scroll.ReadValue();
        var lens = virtualCamera.m_Lens;
        var targetValue = lens.FieldOfView - zoomSpeed * value.y / 120;
        targetValue = Mathf.Clamp(targetValue, min, max);
        lens.FieldOfView = targetValue;
        virtualCamera.m_Lens = lens;

#if UNITY_EDITOR
        if (Keyboard.current[Key.R].wasPressedThisFrame)
        {
            this.ResetState();
        }
#endif
    }

    public void SetPlayer(bool value)
    {
        this.enabled = value;
    }

    public void SetActive(bool value)
    {
        this.transform.GetChild(0).gameObject.SetActive(value);
        this.transform.GetChild(1).gameObject.SetActive(value);
    }

    public void Begin()
    {
        this.ResetState();
        this.SetActive(true);
    }

    public void End()
    {
        this.SetActive(false);
        this.ResetState();
    }

    [ContextMenu("ResetState")]
    public void ResetState()
    {
        virtualCamera.m_Lens = defaultLens;

        this.personController.transform.localPosition = defaultPos;
        this.personController.transform.localRotation = defaultRot;
        this.personController.CinemachineTargetPitch = defaultCameraRot.x;
        this.cameraRoot.transform.localRotation = defaultCameraRot;
    }

    private void OnEnable()
    {
        personController.enabled = true;
    }

    private void OnDisable()
    {
        personController.enabled = false;
    }
}

namespace StarterAssets
{
    public partial class FirstPersonController
    {
        public float CinemachineTargetPitch
        {
            get => this._cinemachineTargetPitch;
            set => this._cinemachineTargetPitch = value;
        }
    }
}