/************************
 *    Json工具相关类    *
 ************************/
using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System;

#region
/// <summary>
/// 封装的可序列化列表对象
/// </summary>
[Serializable]
public class Serialization<T>
{
    [SerializeField]
    List<T> target;
    public List<T> ToList() { return target; }

    public Serialization(List<T> target)
    {
        this.target = target;
    }
}

/// <summary>
/// 封装的可序列化字典对象
/// </summary>
[Serializable]
public class Serialization<TKey, TValue> : ISerializationCallbackReceiver
{
    [SerializeField]
    List<TKey> keys;
    [SerializeField]
    List<TValue> values;

    Dictionary<TKey, TValue> target;
    public Dictionary<TKey, TValue> ToDictionary() { return target; }

    public Serialization(Dictionary<TKey, TValue> target)
    {
        this.target = target;
    }
    public void OnBeforeSerialize()
    {
        keys = new List<TKey>(target.Keys);
        values = new List<TValue>(target.Values);
    }
    public void OnAfterDeserialize()
    {
        var count = Math.Min(keys.Count, values.Count);
        target = new Dictionary<TKey, TValue>(count);
        for (var i = 0; i < count; ++i)
        {
            target.Add(keys[i], values[i]);
        }
    }
}
#endregion

/// <summary>
/// JSON数据工具
/// </summary>
public class JsonTools
{
    /// <summary>
    /// 列表对象转JSON字符串
    /// </summary>
    public static string ListToJson<T>(List<T> l)
    {
        return JsonUtility.ToJson(new Serialization<T>(l));
    }

    /// <summary>
    /// JSON字符串转列表对象
    /// </summary>
    public static List<T> ListFromJson<T>(string str)
    {
        return JsonUtility.FromJson<Serialization<T>>(str).ToList();
    }

    /// <summary>
    /// 字典对象转JSON字符串
    /// </summary>
    public static string DicToJson<TKey, TValue>(Dictionary<TKey, TValue> dic)
    {
        return JsonUtility.ToJson(new Serialization<TKey, TValue>(dic));
    }

    /// <summary>
    /// JSON字符串转字典对象
    /// </summary>
    public static Dictionary<TKey, TValue> DicFromJson<TKey, TValue>(string str)
    {
        return JsonUtility.FromJson<Serialization<TKey, TValue>>(str).ToDictionary();
    }

    /// <summary>
    /// JSON字符串转对象
    /// </summary>
    public static T ObjectFromJson<T>(string str)
    {
        return JsonUtility.FromJson<T>(str);
    }
}