using System.Collections;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;

namespace ActionTool
{
    public static class ActionManager
    {
        public static string s_AnimFolder = "Assets/Art/Animations/";
        public static string s_Controller = "Assets/ActionTool/controller_temp.controller";
        public static string s_AnimationDataFolder = "Assets/Data/AnimationData/";
        static string s_RootMotionDataFolder = "Assets/Data/RootMotionData/";

        public static ActionEditor AnimationWindow;
        public static ActionPreviewEditor PreviewWindow;
        public static ActionEventEditor EventEditWindow;
        public static ActionColliderEditor ColliderWindow;

        //规定timeline上事件的采样频率是30帧
        public const int FPS = 30;

        public static float Speed = 1;

        public static GameObject CurrentUnit
        {
            get
            {
                return s_CurrentUnit;
            }
        }

        public static string CurrentAnimationName
        {
            get
            {
                return s_CurrentAnimationName;
            }
        }

        private static GameObject s_CurrentUnit;
        private static string s_CurrentAnimationName;
        private static GameObject s_UnitInstance;
        private static Animator s_Animator;
        private static AnimatorOverrideController s_OverrideContorller;

        private static ActionData s_CurActionData;
        public static ActionData actionData { get { return s_CurActionData; } }

        public static Vector3 s_InitPosition = Vector3.zero;

        public static Quaternion s_InitRotation = Quaternion.identity;

        private static RootMotionData s_RootMotion;

        private static AnimationData m_AnimationData;
        public static AnimationData animationData
        {
            get
            {
                return m_AnimationData;
            }
            set
            {
                m_AnimationData = value;
                if (gizmos)
                {
                    gizmos.SetAnimationData(value);
                }
            }
        }

        private static ColliderData s_CurColliderData;
        public static ColliderData colliderData { get { return s_CurColliderData; } }

        public static ColliderData.ColliderFrame s_CurEditColliderFrame;
        public static ColliderData.ColliderFrame editColliderFrame { get { return s_CurEditColliderFrame; } }

        private static ActionToolGizmos s_Gizmos;
        public static ActionToolGizmos gizmos { get { return s_Gizmos; } }

        // 是否在自动播放
        private static bool s_IsPlay;
        public static bool IsPlay { get { return s_IsPlay; } }

        private static GameObject s_RootActionTool;
        private const string kRootActionTool = "RootActionTool";

        public const int kMaxEventsPerFrame = 10;
        public static int eventAndBoxCount 
        {
            get
            {
                return kMaxEventsPerFrame + (animationData != null ? animationData.GetBoxesCount() : 0);
            }
        }

        public static void OnSelectObj(GameObject obj)
        {
            Release();
            s_CurrentUnit = obj;
            if(s_CurrentUnit != null)
            {
                s_UnitInstance = GameObject.Instantiate(obj);
                InitializeUnitInstance(s_UnitInstance);
            }
        }

        public static void OnSelectAnimation(string animation)
        {
            s_CurrentAnimationName = animation;
            if (PreviewWindow == null)
                PreviewWindow = EditorWindow.GetWindow<ActionPreviewEditor>();
            PreviewWindow.Repaint();

            string unitName = s_CurrentUnit.name;

            string animpath = s_AnimFolder + unitName + "/" + animation + ".anim";
            AnimationClip clip = AssetDatabase.LoadAssetAtPath(animpath, typeof(AnimationClip)) as AnimationClip;
            if (clip)
            {
                s_OverrideContorller["EmptyAction"] = clip;
            }

            string rootmotionData = s_RootMotionDataFolder + unitName + "/" + animation + ".asset";
            s_RootMotion = AssetDatabase.LoadAssetAtPath<RootMotionData>(rootmotionData);
            if (s_RootMotion == null)
            {
                Debug.LogError("[ActionTool] 没有对应的rootmotion, " + rootmotionData);
            }

            if (s_CurActionData == null)
                s_CurActionData = new ActionData();
            s_CurActionData.Initialize(s_Animator, clip, s_RootMotion);

            string animationDataPath = s_AnimationDataFolder + unitName + "/" + animation + ".asset";
            animationData = AssetDatabase.LoadAssetAtPath<AnimationData>(animationDataPath);
        }

        public static bool HasSelectObj()
        {
            return s_CurrentUnit != null;
        }

        public static string GetUnitName()
        {
            if (s_CurrentUnit == null)
                return null;
            return s_CurrentUnit.name;
        }

        public static void Release()
        {
            if(s_UnitInstance != null)
                GameObject.DestroyImmediate(s_UnitInstance);
            s_UnitInstance = null;
            s_CurrentUnit = null;
            s_CurrentAnimationName = null;
            s_Animator = null;
            s_RootActionTool = GameObject.Find(kRootActionTool);
            if (s_RootActionTool)
                GameObject.DestroyImmediate(s_RootActionTool);
            s_CurActionData = null;
            s_CurEditColliderFrame = null;
            s_CurColliderData = null;
        }

        private static void InitializeUnitInstance(GameObject unit)
        {
            if (unit == null)
                return;

            unit.transform.position = s_InitPosition;
            unit.transform.rotation = s_InitRotation;

            s_RootActionTool = GameObject.Find(kRootActionTool);
            if(s_RootActionTool == null)
                s_RootActionTool = new GameObject(kRootActionTool);

            unit.transform.SetParent(s_RootActionTool.transform);

            s_Animator = unit.GetComponentInChildren<Animator>();
            if(s_Animator == null)
            {
                Debug.LogError("[ActionTool] 角色prefab下没有animator");
                return;
            }

            RuntimeAnimatorController controller = AssetDatabase.LoadAssetAtPath(s_Controller, typeof(RuntimeAnimatorController)) as RuntimeAnimatorController;
            if(controller == null)
            {
                Debug.LogError("[ActionTool] 文件丢失" + s_Controller);
                return;
            }

            s_OverrideContorller = new AnimatorOverrideController(controller);
            s_OverrideContorller.name = "override controller";
            s_Animator.runtimeAnimatorController = s_OverrideContorller;

            s_Animator.applyRootMotion = false;

            s_Gizmos = unit.AddComponent<ActionToolGizmos>();
        }

        public static void UpdateFrame()
        {
            if (s_CurActionData != null)
                s_CurActionData.UpdateFrame();
        }

        public static void Pause()
        {
            s_IsPlay = !s_IsPlay;
            if(s_IsPlay && s_CurActionData != null)
            {
                s_CurActionData.StartFrame();
            }
        }

        public static void Start()
        {
            if (s_CurActionData != null)
                s_CurActionData.curAnimTimeNormal = 0;
        }

        public static void Stop()
        {
            if (s_CurActionData != null)
            {
                if (s_IsPlay)
                    Pause();
                s_CurActionData.curAnimTimeNormal = 0;
            }
        }

        public static void Previous()
        {
            if (s_IsPlay)
                Pause();
            float cur = s_CurActionData.curAnimFrame;
            float pre = Mathf.Ceil(cur - 1);
            pre = (int)Mathf.Clamp(pre, 0, s_CurActionData.totalFrame);
            s_CurActionData.SetCurrentAnimTime(pre);
        }

        public static void Next()
        {
            if (s_IsPlay)
                Pause();
            float cur = s_CurActionData.curAnimFrame;
            float next = Mathf.Floor(cur + 1);
            next = (int)Mathf.Clamp(next, 0, s_CurActionData.totalFrame);
            s_CurActionData.SetCurrentAnimTime(next);
        }

        public static void End()
        {
            if (s_CurActionData != null)
                s_CurActionData.curAnimTimeNormal = 1;
        }

        public static void CreateAnimationData()
        {
            string unitName = s_CurrentUnit.name;
            string animation = s_CurrentAnimationName;
            string animationDataPath = s_AnimationDataFolder + unitName + "/" + animation + ".asset";
            string animpath = s_AnimFolder + unitName + "/" + animation + ".anim";
            AnimationData animData = new AnimationData();
            animData.animationName = s_CurrentAnimationName;
            animData.animationPath = animpath;
            AssetDatabase.CreateAsset(animData, animationDataPath);
            AssetDatabase.Refresh();
            animationData = animData;
        }

        public static void SaveAnimationData()
        {
            if (animationData == null)
            {
                Debug.LogError("[ActionTool] 没有animation data数据");
                return;
            }
            EditorUtility.SetDirty(animationData);
            AssetDatabase.SaveAssets();
            AssetDatabase.Refresh();
        }

        public static void NewHurtBox()
        {
            if (animationData == null)
            {
                Debug.LogError("[ActionTool] 没有animation data数据");
                return;
            }
            ColliderData box = new ColliderData(ColliderBox.EColliderType.HurtBox, ColliderBox.Pivot.MiddleBottom);
            animationData.AddBox(ref animationData.hurtBoxes, box);
        }

        public static void NewHitBox()
        {
            if (animationData == null)
            {
                Debug.LogError("[ActionTool] 没有animation data数据");
                return;
            }
            ColliderData box = new ColliderData(ColliderBox.EColliderType.HitBox, ColliderBox.Pivot.MiddleCenter);
            animationData.AddBox(ref animationData.hitBoxes, box);
        }

        public static void DeleteCurBox()
        {
            if(animationData != null && s_CurColliderData != null)
            {
                animationData.DeleteBox(s_CurColliderData);
                s_CurColliderData = null;
            }
        }

        public static void OnSelectBox(ColliderData collider)
        {
            s_CurColliderData = collider;
        }

        public static void AddNewBoxFrame(object param)
        {
            BoxParam frame = (BoxParam)param;
            int frameIndex = frame.frame;
            var data = frame.collider; 
            if(data != null)
            {
                var frameData = data.AddFrame(frameIndex);
				OnSelectColliderFrame(frameData);
            }
        }

        public static void DeleteBoxFrame(object param)
        {
            BoxParam frame = (BoxParam)param;
            int frameIndex = frame.frame;
            var data = frame.collider;
            if (data != null)
            {
                data.DeleteFrame(frameIndex);
            }
        }

        public static void DeleteCurFrame()
        {
            if (s_CurColliderData == null)
                return;
            if (s_CurEditColliderFrame == null)
                return;
            s_CurColliderData.DeleteFrame(s_CurEditColliderFrame.frame);
            s_CurEditColliderFrame = null;
        }

        public static void OnSelectColliderFrame(ColliderData.ColliderFrame frame)
        {
            s_CurEditColliderFrame = frame;

			if (frame != null)
            {
				ColliderWindow = EditorWindow.GetWindow<ActionColliderEditor>(true);

				ActionData action = ActionManager.actionData;
                float normaltime = frame.frame / action.totalFrame;
                action.curAnimTimeNormal = normaltime;
            }
        }

    }
}