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

namespace CB.Data
{
    /// <summary>
    /// 模板文件缓存
    /// </summary>
    public class TemplateFiles
    {
        private static object lockObject = new object();
        private static Dictionary<string, string> template = new Dictionary<string, string>();
        private static string rootPath = AppDomain.CurrentDomain.BaseDirectory + CB.Config.BaseConfigs.GetConfig().TemplateRootPath + "\\";

        private TemplateFiles() { }
        static TemplateFiles() { }

        /// <summary>
        /// 获取模板文件内容
        /// </summary>
        /// <param name="filePath"></param>
        /// <returns></returns>
        public static string GetFileContent(string filePath)
        {
            //if (template.ContainsKey(filePath))
            //    return template[filePath];

            string content = "";
            lock (lockObject)
            {
                //if (template.ContainsKey(filePath))
                //    return template[filePath];

                string path = rootPath + filePath;
                if (!File.Exists(path))
                    return "";

                content = File.ReadAllText(path, Encoding.UTF8);
                //template[filePath] = content;
            }
            return content;
        }
        /// <summary>
        /// 加载制定模板文件
        /// </summary>
        public static void LoadFile(string filePath)
        {
            lock (lockObject)
            {
                string path = rootPath + filePath;
                string content = "";
                if (File.Exists(path))
                {
                    content = File.ReadAllText(rootPath + filePath, Encoding.UTF8);
                }
                if (template.ContainsKey(filePath))
                    template[filePath] = content;
                else
                    template.Add(filePath, content);
            }
        }
        /// <summary>
        /// 重新加载所有模板文件
        /// </summary>
        public static void ReLoadFile()
        {
            lock (lockObject)
            {
                string path;
                Dictionary<string, string> t = new Dictionary<string, string>();
                foreach (var key in template.Keys)
                {
                    path = rootPath + key;
                    if (File.Exists(path))
                    {
                        t[key] = File.ReadAllText(path, Encoding.UTF8);
                    }
                }
                template = t;
            }
        }
    }
}