using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using Nancy;
using Nancy.ModelBinding;
using Sony.Filtr.Applications;
using Sony.Filtr.Globalization;

namespace Sony.Filtr.AdminAPI.Modules.Globalization
{
    public class GlobalizationModule : BaseModule
    {
        public GlobalizationModule(GlobalizationHandler2 globalizationHandler, ApplicationInstanceManager applicationInstanceManager)
            : base(applicationInstanceManager)
        {
            Get["GetGlobalizationLanguages", "/globalization/Languages"] = parameters =>
            {
                var allCultures = CultureInfo.GetCultures(CultureTypes.AllCultures);
                var cultureViewModels = allCultures.Select(c => new { DisplayName = c.DisplayName, Code = c.Name }).ToList();
                return Response.AsJson(cultureViewModels);
            };
            Get["GetGlobalizationKeys", "/globalization/Keys"] = parameters =>
            {
                var keys = globalizationHandler.GetKeys();

                return Response.AsJson(keys);
            };
            Post["AddGlobalizationKey", "/globalization/Keys/"] = parameters =>
            {
                string key = new StreamReader(Request.Body).ReadToEnd();
                if (string.IsNullOrWhiteSpace(key))
                    return HttpStatusCode.BadRequest;

                var existingKey = globalizationHandler.GetKeys().FirstOrDefault(k => k.Key.Equals(key, StringComparison.InvariantCulture));
                if (existingKey != null)
                    return HttpStatusCode.BadRequest;

                var addedKey = globalizationHandler.AddKey(key);

                return Response.AsJson(addedKey);
            };
            Delete["DeleteGlobalizationKey", "/globalization/Keys/{keyId}"] = parameters =>
            {
                int keyId = int.Parse(parameters.keyId);
                var key = globalizationHandler.GetKey(keyId);
                globalizationHandler.DeleteKey(key);

                return HttpStatusCode.Accepted;
            };
            Get["GetGlobalizationValues", "/globalization/{cultureValue}/Values"] = parameters =>
            {
                string cultureValue = (string) parameters.cultureValue;
                if (string.IsNullOrWhiteSpace(cultureValue))
                    return HttpStatusCode.BadRequest;

                var culture = CultureInfo.GetCultureInfo(cultureValue);

                var globalization = globalizationHandler.GetTranslations(culture);

                return Response.AsJson(globalization);
            };

            Post["AddGlobalizationValues", "/globalization/{cultureValue}/Values"] = parameters =>
            {
                string cultureValue = (string) parameters.cultureValue;
                if (string.IsNullOrWhiteSpace(cultureValue))
                    return HttpStatusCode.BadRequest;

                var culture = CultureInfo.GetCultureInfo(cultureValue);

                var globalizationValues = this.Bind<GlobalizationValues>();
                if (globalizationValues == null || globalizationValues.Values == null || !globalizationValues.Values.Any())
                    return HttpStatusCode.BadRequest;

                foreach (var globalizationValue in globalizationValues.Values)
                {
                    var key = globalizationHandler.GetKey(globalizationValue.KeyId);
                    globalizationHandler.SetTranslation(key, culture, globalizationValue.Value);
                }
                return Response.AsJson(globalizationHandler.GetTranslations(culture));
            };
            //Put["/globalization/{cultureValue}/Values/{keyId}"] = parameters =>
            //{
            //    string cultureValue = (string)parameters.cultureValue;
            //    if (string.IsNullOrWhiteSpace(cultureValue))
            //        return HttpStatusCode.BadRequest;

            //    var culture = CultureInfo.GetCultureInfo(cultureValue);

            //    int keyId = (int) parameters.keyId;
            //    if (keyId == default(int))
            //        return HttpStatusCode.BadRequest;

            //    var globalizationKey = globalizationHandler.GetKey(keyId);

            //    string value = new StreamReader(Request.Body).ReadToEnd();
            //    if (string.IsNullOrWhiteSpace(value))
            //        return HttpStatusCode.BadRequest;

            //    globalizationHandler.SetTranslation(globalizationKey, culture, value);

            //    return Response.AsText(value);
            //};
        }

        public class GlobalizationValues
        {
            public List<GlobalizationValue> Values { get; set; }
        }

        public class GlobalizationValue
        {
            public int KeyId { get; set; }
            public string Value { get; set; }
 
        }
    }
}