using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Aitex.Core.RT.Log;

namespace Aitex.Core.RT.ConfigCenter
{
    public class ConfigItem
    {
        public object this[string configName]
        {
            get
            {
                return CONFIG.Get(configName);
            }
            set
            {
                CONFIG.Set(configName, value);
            }
        }
    }

    public class CONFIG
    {
        public static ConfigItem Items = new ConfigItem();

        public static ICommonConfig InnerConfigManager { set; private get; }

        public static object Get(string configName)
        {
            return (InnerConfigManager != null) ? InnerConfigManager.GetConfig(configName) : null;
        }

        public static void Set(string configName, object value)
        {
            if (InnerConfigManager != null)
                InnerConfigManager.SetConfig(configName, value);
        }

        /// <summary>
        /// 返回Config目录下面文件的内容，filename也可以是绝对路径
        /// 如果文件不存在，返回NULL。
        /// 如果读取错误，返回""
        /// </summary>
        /// <param name="fileName"></param>
        /// <returns></returns>
        public static string GetFileContent(string fileName)
        {
            if (InnerConfigManager != null)
                return InnerConfigManager.GetFileContent(fileName);

            //LOG.Error("Config模块没有初始化，调用GetConfigFile（）" + fileName);

            return null;
        }

        public static void Subscribe(string module, string key, Func<object> getter)
        {
            if (InnerConfigManager != null)
                InnerConfigManager.Subscribe(module, key, getter);
        }

        public static object Poll(string paramName)
        {
            return (InnerConfigManager == null) ? null : InnerConfigManager.Poll(paramName);
        }

        public static object Poll(string module, string paramName)
        {
            return (InnerConfigManager == null) ? null : InnerConfigManager.Poll(string.Format("{0}.{1}", module, paramName));
        }

        public static Dictionary<string, object> PollConfig(IEnumerable<string> keys)
        {
            return (InnerConfigManager == null) ? null : InnerConfigManager.PollConfig(keys);
        }
    }
}