using System;
using System.Collections;
using System.Globalization;
using System.IO;
using System.Resources;

namespace Muchinfo.MTPClient.CustomException
{
    public class ErrorResourceManager : ResourceManager
    {
        private const string _defaultFileName = "Muchinfo.ErrorResource.zh-CN.dll";
        private const string _defaultCultureName = "zh-CN";
        private const string _unKnownResource = "UnKnownResource";
        private const string _unfindResource = "UnFindResource";
        private static ResourceManager resourceMan;


        public static ResourceManager ResourceManager
        {
            get
            {
                if (object.ReferenceEquals(resourceMan, null))
                {
                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Muchinfo.MTPClient.CustomException.ErrorResources", typeof(ErrorResources).Assembly);
                    resourceMan = temp;
                }
                return resourceMan;
            }
        }

        public ErrorResourceManager()
        {
            ResourceSets = new Hashtable();
            var filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, _defaultFileName);
            try
            {
                LoadResourceFiles(filePath, _defaultCultureName);
            }
            catch (Exception)   //读取不到文件使用系统默认的
            {
            }
        }
        public ErrorResourceManager(string errorResourceFilePath)
        {
            ResourceSets = new Hashtable();
            try
            {
                LoadResourceFiles(errorResourceFilePath, _defaultCultureName);
            }
            catch (Exception)   //读取不到文件使用系统默认的
            {
            }
        }
        public void LoadResourceFiles(string resourceFile, string cultureName)
        {
            var reader = new ResourceReader(resourceFile);
            var resourceSet = new ResourceSet(reader);
            this.ResourceSets[cultureName] = resourceSet;
        }

        public override string GetString(string name)
        {
            var culture = new CultureInfo(_defaultCultureName);
            return GetString(name, culture);
        }
        public override string GetString(string name, CultureInfo culture)
        {
            if (this.ResourceSets != null && this.ResourceSets.Count > 0)
            {
                if (culture == null)
                {
                    culture = new CultureInfo(_defaultCultureName);
                }
                if (this.ResourceSets.Contains(culture.Name))
                {
                    var resourceSets = this.ResourceSets[culture.Name] as ResourceSet;
                    if (resourceSets != null)
                    {
                        try
                        {
                            return resourceSets.GetString(name);
                        }
                        catch
                        {
                            return _unfindResource;
                        }
                    }
                }
            }
            else
            {
                return ResourceManager.GetString(name, null); 
            }
            return _unKnownResource;
        }
    }

    public partial class ErrorResources
    {
        private static bool _resourceLoaded = false;
        public static bool ResourceLoaded
        {
            get
            {
                return _resourceLoaded;
            }
        }
        public static void Resource(ResourceManager manager)
        {
            resourceMan = manager;
            _resourceLoaded = true;
        }
    }
}