using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Configuration;
using EPiServer.Framework;
using EPiServer.Framework.Initialization;
using EPiServer.ServiceLocation;
using EPiServer.Web;

namespace AlloyImageVault1600.Business.Initialization
{
    [InitializableModule]
    [ModuleDependency(typeof(EPiServer.Web.InitializationModule))]
    public class UrlSegmentConfigurationModule : IConfigurableModule
    {
        public void ConfigureContainer(ServiceConfigurationContext context)
        {
            /* Internationalized Resource Identifiers (IRIs)
                When creating Url segments (name in URL or simple address), by default, Episerver only allows characters according to RFC 1738, which basically allows ALPHA / DIGIT / '-'/ '_'/ '~' / '.'/ '$'/. 
            */
            // define a custom character set, e.g.: Space, 漢
            // sample setting: <add key="ValidUrlChars" value="/// 漢" />
            var validChars = ConfigurationManager.AppSettings["ValidUrlChars"];
            if (validChars == null) validChars = "";

            context.Services.RemoveAll<UrlSegmentOptions>();
            context.Services.AddSingleton<UrlSegmentOptions>(s => new UrlSegmentOptions
            {
                SupportIriCharacters = true,
                ValidCharacters = @"\p{L}0-9\-_~\.\$" + validChars
            });
        }

        public void Initialize(InitializationEngine context)
        {
            //Add initialization logic, this method is called once after CMS has been initialized
        }

        public void Uninitialize(InitializationEngine context)
        {
            //Add uninitialization logic
        }
    }
}