using System;
using System.Collections.Generic;
using System.IO;

using UnityEngine;

#if FUNCELL_EDITOR
namespace SceneEditor.Proxy.Editor
#else
namespace SceneEditor.Proxy.Plugin
#endif
{
    /// <summary>
    /// MapInfo数据的读操作
    /// </summary>
    public static class MapInfoDataReader
    {
        public static Dictionary<string, MapInfoBody> _mapInfoBodys = new Dictionary<string, MapInfoBody>();

        /// <summary>
        /// 读取场景对象数据,sceneName.bytes
        /// 读取二进制数据        
        /// </summary>
        /// <param name="pathName"></param>
        /// <param name="sceneName"></param>
        /// <returns></returns>
        public static MapInfoBody LoadSceneObjectData(String pathName, String fileName)
        {
            if (String.IsNullOrEmpty(fileName))
                return null;
            string filePath = pathName + "/" + fileName;
            string mapName = fileName.Replace("_MapInfo.bytes", "");
            try
            {
                var bytes = File.ReadAllBytes(filePath);
                if (bytes != null)
                {
                    int readLen = 0;
                    MapInfoHeader header = new MapInfoHeader();
                    header.Read(bytes, ref readLen);
                    MapInfoBody body = new MapInfoBody(header);
                    if (body.Read(bytes))
                    {
                        if (!_mapInfoBodys.ContainsKey(mapName))
                        {
                            _mapInfoBodys[mapName] = body;
                        }
                        return body;
                    }
                }
            }
            catch (Exception e)
            {
                Debug.LogErrorFormat("LoadSceneObjectData failed! {0}", filePath);
                Debug.LogException(e);
            }
            return null;
        }

        ///// <summary>
        ///// 为世界地图读取MapInfo数据,sceneName.bytes
        ///// 文件是二进制数据
        ///// </summary>
        ///// <param name="pathName"></param>
        ///// <param name="sceneName"></param>        
        ///// <returns></returns>
        //public static MapInfoBody LoadSceneObjectData_ForWorldMap(String pathName, String sceneName)
        //{
        //    String[] dirs = sceneName.Split(new char[] { '/' });
        //    if (dirs.Length == 0)
        //    {
        //        return null;
        //    }
        //    String fileName = dirs[dirs.Length - 1];
        //    MemoryStream fs = null;
        //    try
        //    {
        //        var bytes = File.ReadAllBytes(pathName + '/' + fileName);
        //        if (bytes != null)
        //        {

        //            fs = new MemoryStream(bytes);
        //            BinaryReader r = new BinaryReader(fs);
        //            MapInfoHeader header = new MapInfoHeader();
        //            header.Read(r);
        //            r.BaseStream.Seek(0, SeekOrigin.Begin);
        //            // read header successed
        //            MapInfoBody body = new MapInfoBody(header);
        //            if (body.Read(r))
        //            {
        //                return body;
        //            }
        //        }
        //    }
        //    catch (IOException e)
        //    {
        //        Debug.LogFormat("Save MapInfo data failed! " , e);
        //    }
        //    finally
        //    {
        //        if (fs != null)
        //        {
        //            fs.Close();
        //        }
        //    }
        //    return null;
        //}


        /// <summary>
        /// 使用ObjectSerializer,从xml文件中加载MapInfo数据
        /// </summary>
        /// <param name="sceneName"></param>        
        /// <returns></returns>
        public static GameObject LoadScene(string mapName)
        {   
            GameObject go = GameObject.Find(MapInfoConstDefine.SceneObjectsRootName);
            if (go == null)
            {
                go = new GameObject();
                go.name = MapInfoConstDefine.SceneObjectsRootName;
                go.transform.position = Vector3.zero;
                go.transform.rotation = Quaternion.identity;
                go.transform.localScale = Vector3.one;
            }

            if(_mapInfoBodys.ContainsKey(mapName))
            { 
                MapInfoBody body = _mapInfoBodys[mapName];

                //加载路点信息
                Transform wayPointParent = go.transform.Find("[WayPoint]");
                if (wayPointParent == null)
                {
                    GameObject temp = new GameObject("[WayPoint]");
                    wayPointParent = temp.transform;
                    wayPointParent.position = Vector3.zero;
                    wayPointParent.rotation = Quaternion.identity;
                    wayPointParent.localScale = Vector3.one;
                    wayPointParent.parent = go.transform;
                }
                List<WayPointData> wayPointDatas = body.mapWayPoints;
                WayPointPlanData.LoadWayPointData(wayPointParent.gameObject, wayPointDatas);

                //加载Trigger信息
                Transform triggerParent = go.transform.Find("[Trigger]");
                if(triggerParent == null)
                {
                    GameObject temp = new GameObject("[Trigger]");
                    triggerParent = temp.transform;
                    triggerParent.position = Vector3.zero;
                    triggerParent.rotation = Quaternion.identity;
                    triggerParent.localScale = Vector3.one;
                    triggerParent.parent = go.transform;
                }
                List<TriggerData> triggerDatas = body.mapTriggers;
                TriggerPlanData.LoadTriggerData(triggerParent.gameObject, triggerDatas);

                //加载动态阻挡
                Transform dynamicBlockerParent = go.transform.Find("[DynamicBlocker]");
                if (dynamicBlockerParent == null)
                {
                    GameObject temp = new GameObject("[DynamicBlocker]");
                    dynamicBlockerParent = temp.transform;
                    dynamicBlockerParent.position = Vector3.zero;
                    dynamicBlockerParent.rotation = Quaternion.identity;
                    dynamicBlockerParent.localScale = Vector3.one;
                    dynamicBlockerParent.parent = go.transform;
                }
                List<DynamicBlockerData> dynamicBlockerDatas = body.mapDynamicBlockers;
                TriggerPlanData.LoadDynamicBlockerData(dynamicBlockerParent.gameObject, dynamicBlockerDatas);

                //加载场景音乐
                Transform soundParent = go.transform.Find("[Sound]");
                if (soundParent == null)
                {
                    GameObject temp = new GameObject("[Sound]");
                    soundParent = temp.transform;
                    soundParent.position = Vector3.zero;
                    soundParent.rotation = Quaternion.identity;
                    soundParent.localScale = Vector3.one;
                    soundParent.parent = go.transform;
                }
                List<SoundData> soundDatas = body.mapSounds;
                TriggerPlanData.LoadSoundData(dynamicBlockerParent.gameObject, soundDatas);
            }
            else
            {
                Debug.LogError(mapName + "=====not exist config file======");
            }            
            return go;
        }

        //获取int
        public static int GetInt(byte[] bytes, ref int readLen)
        {
            var result = BitConverter.ToInt32(bytes, readLen);
            readLen += 4;
            return result;
        }

        //获取int16
        public static Int16 GetInt16(byte[] bytes, ref int readLen)
        {
            var result = BitConverter.ToInt16(bytes, readLen);
            readLen += 2;
            return result;
        }

        //获fload
        public static float GetFloat(byte[] bytes, ref int readLen)
        {
            var result = BitConverter.ToSingle(bytes, readLen);
            readLen += 4;
            return result;
        }

        //获取string
        public static string GetStringFixSize(byte[] bytes, int size, ref int readLen)
        {
            var result = System.Text.Encoding.UTF8.GetString(bytes, readLen, size).Trim((char)0);
            readLen += size;
            return result;
        }
    }
}