using Cinemachine;
using Framework.Timer;
using Sirenix.Utilities;
using UnityEngine;

namespace Game.Component
{
    public class CameraManager : MonoBehaviour
    {
        public enum CameraState
        {
            Normal = 0,  // 正常
            Player_Near, // 在玩家附近
            Player_Far,  // 在玩家远处
            CloseUp      // 特写镜头
        }

        [SerializeField] private Camera            mainCamera;
        [SerializeField] private Animator          cameraAnimator;
        [SerializeField] private Transform         closeUpTarget;
        [SerializeField] private PolygonCollider2D boxBorder;

        public                  CameraState cameraState  = CameraState.Normal;
        private static readonly int         TriggerState = Animator.StringToHash ("TriggerState");
        private                 TimeHandler _closeUpTimeHandler;


        public void SetCameraState (CameraState state)
        {
            this.cameraState = state;
            this.cameraAnimator.SetInteger (TriggerState , (int)state);
        }

        public void SetCloseUpTarget (Transform target , float duration = 3)
        {
            this._closeUpTimeHandler?.Kill ();
            var lastState = this.cameraState;
            this.closeUpTarget.position = target.position;
            SetCameraState (CameraState.CloseUp);
            MapContent.Instance.IsPause = true;
            this._closeUpTimeHandler = GameUpdateMgr.Instance.CreateTimer (duration , () =>
            {
                SetCameraState (lastState);
                this._closeUpTimeHandler    = null;
                MapContent.Instance.IsPause = false;
            });
        }

        public void SetBoxCollider (PolygonCollider2D box)
        {
            this.boxBorder.offset    = box.offset;
            this.boxBorder.pathCount = box.pathCount;
            this.boxBorder.points    = box.points;
            this.transform.GetComponentsInChildren<CinemachineConfiner2D> ().ForEach (d => d.InvalidateCache ());
        }

        public static CameraManager Instance { get; private set; }

        private void Awake ()
        {
            Instance = this;
        }
    }
}