using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Web.Http;
using Step.Model.DTOModels;
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);

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

            return Ok(translations);
        }
    }
}