cms_thermo_active/Step/Controllers/WebApi/LanguageController.cs

using Step.Model.ConfigModels;
using Step.Model.DTOModels;
using System.Collections.Generic;
using System.Linq;
using System.Web.Http;
using static Step.Config.ServerConfig;
using static Step.Utils.Constants;
using static Step.Utils.LanguageController;

namespace Step.Controllers.WebApi
{
    [RoutePrefix("api/language")]
    public class LanguageController : ApiController
    {
        [Route("languages"), HttpGet]
        public IHttpActionResult GetLanguageList()
        {
            List<DTOLanguageModel> availableLanguages = GetLanguageListFromDirectory();
            if (availableLanguages == null)
                return NotFound();

            return Ok(availableLanguages);
        }

        [Route("{language}"), HttpGet()]
        public IHttpActionResult GetTranslations(string language)
        {
            if (!IsValidLanguage(language))
                return BadRequest("Language not exists");

            if (!LanguageIsAvailable(language))
                return NotFound();

            Dictionary<string, string> translations = GetTranslationsFromFile(language);

            // Get Maintenance translations
            Dictionary<string, string> maintenance = GetLocalizeMaintenanceName(language);
            Dictionary<string, string> softKeys = GetLocalizedSoftKeysNames(language);

            // Concat maintenances dictionary with translations dictionary
            translations = translations.Concat(maintenance).ToDictionary(x => x.Key, x => x.Value);
            translations = translations.Concat(softKeys).ToDictionary(x => x.Key, x => x.Value);

            if (translations == null)
                return InternalServerError();

            return Ok(translations);
        }

        public static Dictionary<string, string> GetLocalizeMaintenanceName(string language)
        {
            return MaintenancesConfig
                .ToDictionary(
                x => MAINTENANCE_PREFIX_ID + x.Id.ToString(),
                x => GetValueFromMaintenanceNameList(x.LocalizedNames, language, "Maintenance_" + x.Id)
                );
        }


        public static Dictionary<string, string> GetLocalizedSoftKeysNames(string language)
        {
            return SoftKeysConfig
                .ToDictionary(
                x => SOFTKEY_PREFIX_ID + x.Id.ToString(),
                x => GetValueFromMaintenanceNameList(x.LocalizedNames, language, "SoftKey_" + x.Id)
                );
        }

        public static string GetValueFromMaintenanceNameList(Dictionary<string, string> localizedNames, string language, string defaultString)
        {
            // Find text from names by language id
            var value = localizedNames.Where(y => y.Key == language).FirstOrDefault();
            // Set default value
            if (value.Key == null)
                return defaultString;
            else
                return value.Value;
        }
    }
}