using System;
using System.Collections;
using AibisDream.FixSystem;
using AibisDream.Framework;
using AibisDream.Utility;
using Cinemachine;
using DG.Tweening;
using UnityEngine;
using UnityEngine.Events;

namespace AibisDream
{
    public class EngineSystem : MonoBehaviour
    {
        private StaticGear _centerGear;

        [Header("系统配置")] public EngineConfig engineConfig;
        public bool isAvailable;
        public bool isPullActive;
        private bool _isSuccess;

        public float curSpeed;
        [HideInInspector] public UnityEvent<float, float> updateSpeedEvent = new();

        [SerializeField] private float coverMoveDuration = 5f;

        [SerializeField] private float coverMoveDistance = 2.8f;

        private void Awake()
        {
            FixSystemCenter.SystemDic.Register(this);
            _centerGear = transform.Find("中央齿轮").GetComponent<StaticGear>();
            _centerGear.initSpeed = engineConfig.gearSpeed;

            // 注册相机
            var virtualCam = transform.Find("Engine Camera").GetComponentInChildren<ICinemachineCamera>();
            CameraKit.Instance.RegisterCamera(CameraEnum.Engine, virtualCam);
        }

        private void Start()
        {
            _centerGear.StartRotate();
        }

        public IEnumerator StepOnGas(float targetSpeed, float duration)
        {
            // 逐渐加速
            yield return DOTween.To(() => curSpeed, x => { curSpeed = x; }, targetSpeed, duration).WaitForCompletion();
        }

        public void AddAirPress(float speedDelta)
        {
            curSpeed = CommonUtil.Limit(curSpeed + speedDelta / engineConfig.pullCount, 1, 0);
        }

        private void OnDestroy()
        {
            CameraKit.Instance.UnRegisterCamera(CameraEnum.Engine);
        }

        private void Update()
        {
            updateSpeedEvent.Invoke(curSpeed, GetSpeedScale());
            if (curSpeed >= 0.99f && !_isSuccess)
            {
                _isSuccess = true;
                isPullActive = false;
                DialogController.Instance?.StartDialogNode("EngineSuccess");
            }
        }

        private float GetSpeedScale()
        {
            return 1 + curSpeed * engineConfig.speedRate;
        }

        /// <summary>
        /// 开启系统交互
        /// </summary>
        public void EnableSystem()
        {
            isAvailable = true;
        }

        /// <summary>
        /// 关闭系统交互
        /// </summary>
        public void DisableSystem()
        {
            isAvailable = false;
        }
    }

    [Serializable]
    public struct EngineConfig
    {
        [Header("齿轮基础速度")] public float gearSpeed;
        [Header("齿轮速度倍率")] public float speedRate;
        [Header("拉满几次到全速")] public float pullCount;
        [Header("拉绳最大速度")] public float pullMaxSpeed;
        [Header("拉绳回缩速度")] public float returnSpeed;
    }
}