//------------------------------------------------------------
// Game Framework v3.x
// Copyright © 2013-2017 Jiang Yin. All rights reserved.
// Homepage: http://gameframework.cn/
// Feedback: mailto:jiangyin@gameframework.cn
//------------------------------------------------------------

using GameFramework;
using System;
using System.Collections.Generic;
using System.Reflection;
using UnityEngine;

namespace UnityGameFramework.Runtime
{
 /// <summary>
 /// 默认数据表辅助器。
 /// </summary>
 public class DefaultDataTableHelper : DataTableHelperBase
 {
 private DataTableComponent m_DataTableComponent = null;
 private ResourceComponent m_ResourceComponent = null;

 /// <summary>
 /// 加载数据表。
 /// </summary>
 /// <param name="dataTableName">数据表名称。</param>
 /// <param name="dataTableType">数据表类型。</param>
 /// <param name="dataTableNameInType">数据表类型下的名称。</param>
 /// <param name="dataTableAsset">数据表资源。</param>
 /// <param name="userData">用户自定义数据。</param>
 /// <returns>加载是否成功。</returns>
 public override bool LoadDataTable(string dataTableName, Type dataTableType, string dataTableNameInType, object dataTableAsset, object userData)
 {
 TextAsset textAsset = dataTableAsset as TextAsset;
 if (textAsset == null)
 {
 Log.Warning("Data table asset '{0}' is invalid.", dataTableName);
 return false;
 }

 if (dataTableType == null)
 {
 Log.Warning("Data table type is invalid.");
 return false;
 }

 MethodInfo methodInfo = m_DataTableComponent.GetType().GetMethod("ReflectionCreateDataTable", BindingFlags.NonPublic | BindingFlags.Instance);
 if (methodInfo == null)
 {
 Log.Warning("Get ReflectionCreateDataTable method failure.");
 return false;
 }

 methodInfo = methodInfo.MakeGenericMethod(dataTableType);
 if (methodInfo == null)
 {
 Log.Warning("Make 'ReflectionCreateDataTable<{0}>' method failure.", dataTableType.Name);
 return false;
 }

 try
 {
 methodInfo.Invoke(m_DataTableComponent, BindingFlags.InvokeMethod, null, new object[] { dataTableNameInType, textAsset.text }, null);
 return true;
 }
 catch (Exception exception)
 {
 string errorMessage = string.Format("Invoke 'CreateDataTable<{0}>' method failure with exception '{1}'.", dataTableType.FullName, string.Format("{0}\n{1}", exception.Message, exception.StackTrace));
 if (exception.InnerException != null)
 {
 errorMessage += string.Format(" Inner exception is '{0}'.", exception.InnerException.Message);
 }

 Log.Warning(errorMessage);
 return false;
 }
 }

 /// <summary>
 /// 将要解析的数据表文本分割为数据表行文本。
 /// </summary>
 /// <param name="text">要解析的数据表文本。</param>
 /// <returns>数据表行文本。</returns>
 public override string[] SplitToDataRows(string text)
 {
 List<string> texts = new List<string>();
 string[] rowTexts = Utility.Text.SplitToLines(text);
 for (int i = 0; i < rowTexts.Length; i++)
 {
 if (rowTexts[i].Length <= 0 || rowTexts[i][0] == '#')
 {
 continue;
 }

 texts.Add(rowTexts[i]);
 }

 return texts.ToArray();
 }

 /// <summary>
 /// 释放数据表资源。
 /// </summary>
 /// <param name="dataTableAsset">要释放的数据表资源。</param>
 public override void ReleaseDataTableAsset(object dataTableAsset)
 {
 m_ResourceComponent.UnloadAsset(dataTableAsset);
 }

 private void Start()
 {
 m_DataTableComponent = GameEntry.GetComponent<DataTableComponent>();
 if (m_DataTableComponent == null)
 {
 Log.Fatal("Data table component is invalid.");
 return;
 }

 m_ResourceComponent = GameEntry.GetComponent<ResourceComponent>();
 if (m_ResourceComponent == null)
 {
 Log.Fatal("Resource component is invalid.");
 return;
 }
 }
 }
}