using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.Configuration;
using System.Web.Script.Serialization;
using System.Web.Security;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Administration;

namespace Taloyhtio.CustomFBADataSource.CodeFiles
{
    // Contains copy/pasted methods from CKS.FormsBasedAuthentication
    public class Utils
    {
        public static bool IsProviderConfigured()
        {
            // attempt to get current users details
            try
            {
                Membership.GetUser();
            }
            catch
            {
                // if fails membership provider is not configured correctly
                return false;
            }

            // if no error provider is ok
            return true;
        }

        public static SPIisSettings GetFBAIisSettings(SPSite site)
        {
            SPIisSettings settings = null;

            // try and get FBA IIS settings from current site zone
            try
            {
                settings = site.WebApplication.IisSettings[site.Zone];
                if (settings.UseFormsClaimsAuthenticationProvider)
                    return settings;
            }
            catch
            {
                // expecting errors here so do nothing                 
            }

            // check each zone type for an FBA enabled IIS site
            foreach (SPUrlZone zone in Enum.GetValues(typeof(SPUrlZone)))
            {
                try
                {
                    settings = site.WebApplication.IisSettings[(SPUrlZone)zone];
                    if (settings.UseFormsClaimsAuthenticationProvider)
                        return settings;
                }
                catch
                {
                    // expecting errors here so do nothing                 
                }
            }

            // return null if FBA not enabled
            return null;
        }
    }
}