using Cysharp.Threading.Tasks;
using Cysharp.Threading.Tasks.Linq;

using UniRx;
using UniRx.Triggers;

using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class ModelViewBridge : MonoBehaviour
{
    public int index;
    public float speed = 150;
    public bool isClamp = false;
    public ModelViewLogic modelViewLogic;

    [SerializeField]
    private FloatReactiveProperty _angle;

    [SerializeField]
    private Button[] _btns;

    [SerializeField]
    private GameObject _view;
    private void Reset()
    {
        this._btns = this.GetComponentsInChildren<Button>(true);
        this._view = this.transform.Find("image_view").gameObject;
        this.modelViewLogic = this.GetComponentInChildren<ModelViewLogic>(true);
    }

    private async void Start()
    {
        _angle = new FloatReactiveProperty(0);
        var token = this.GetCancellationTokenOnDestroy();
        // 旋转按钮逻辑
        this.UpdateAsObservable()
            .Where(_ => Input.GetMouseButton(0) == true)
            .Subscribe(_ => {
                Debug.Log(EventSystem.current.currentSelectedGameObject);
                var current = EventSystem.current.currentSelectedGameObject;
                if (current == _btns[1].gameObject)
                {
                    var value = this._angle.Value - speed * Time.deltaTime;
                    if (isClamp == true)
                    {
                        this._angle.Value = Mathf.Clamp(value, -180, 180);
                    }
                    else
                    {
                        this._angle.Value = value;
                    }
                }
                else if (current == _btns[0].gameObject)
                {
                    var value = this._angle.Value + speed * Time.deltaTime;
                    if (isClamp == true)
                    {
                        this._angle.Value = Mathf.Clamp(value, -180, 180);

                    }
                    else
                    {
                        this._angle.Value = value;
                    }
                }
            })
            .AddTo(this);

        // 同步逻辑
        this._angle
            .Subscribe(_ => {
                // 旋转
                this.modelViewLogic.SetRotate(new Vector3(0, _, 0));
            })
            .AddTo(this);
        await this.modelViewLogic.InitAsync(token);
        this.modelViewLogic.ShowModel(this.index);
        this._view.SetActive(true);
    }

    public void StartLogic()
    {
        this.modelViewLogic.HideAll();
        this.modelViewLogic.ResetView();
    }

    public void NormalLogic()
    {
        this.modelViewLogic.HideAll();
        this.modelViewLogic.ResetView();
    }

    private async void OnEnable()
    {
        await this.modelViewLogic.InitAsync(this.GetCancellationTokenOnDestroy());
        this.modelViewLogic.ShowModel(this.index);
        this._angle.Value = 0;
    }

    private void OnDisable()
    {
        if (this.modelViewLogic != true)
        {
            return;
        }
        this.modelViewLogic.HideAll();
        //this.modelViewLogic.ResetView();
    }
}