using System.Collections.Generic;
using System.Linq;
using AutoMapper;
using gehGassi.Common.Data;
using gehGassi.Core.Services;
using gehGassi.Web.Models;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Localization;

namespace gehGassi.Web.Controllers
{
    /// <summary>
    /// Controller für die Abfrage von Ländern
    /// </summary>
    [Authorize]
    public class CountryController : BaseController
    {
        private readonly ICountryService _countryService;
        private readonly IMapper _mapper;
        private readonly IStringLocalizer<CountryController> _localizer;

        /// <summary>
        /// Erstellt eine Instanz
        /// </summary>
        /// <param name="countryService">Instanz eines ICountryService</param>
        /// <param name="mapper">Instanz eines IMapper</param>
        /// <param name="localizer">Instanz eines IStringLocalizer</param>
        public CountryController(ICountryService countryService, IMapper mapper, IStringLocalizer<CountryController> localizer)
        {
            _countryService = countryService;
            _mapper = mapper;
            _localizer = localizer;
        }

        /// <summary>
        /// Gibt eine Liste von Ländern für LookUp zurück
        /// </summary>
        /// <returns>Liste</returns>
        public IActionResult LookupCountries([FromBody] DataManager dm, bool includeAll = false)
        {
            var result = new List<LookupItemVm>();
            var filter = string.Empty;
            if (dm.Where?.FirstOrDefault() != null)
            {
                filter = dm.Where.First().value.ToString();
                if (filter.IndexOf('(') > 0)
                {
                    filter = filter.Substring(0, (filter.IndexOf('(') - 1));
                    filter = filter.TrimEnd();
                }
            }

            var countries = _countryService.GetCountries().OrderBy(c => c.Name);

            var items = countries.Where(c => c.Name.ToLower().Contains(filter.ToLower()));

            foreach (var item in items)
            {
                result.Add(new LookupItemVm() { Id = item.Iso2.ToString(), Name = $"{item.Name}" });
            }

            if (includeAll)
                result.Insert(0, new LookupItemVm() { Id = "", Name = _localizer["Common_All"].ToString() });

            //result.Insert(0, new LookupItemVm() { Id = "", Name = _localizer["Common_Select"].ToString() });
            return Json(result);
        }

        /// <summary>
        /// Gibt eine Liste von Bundes-Ländern für LookUp zurück
        /// </summary>
        /// <param name="dm">DataManager</param>
        /// <param name="countryIso">ISO2 des Landes</param>
        /// <returns></returns>
        public IActionResult LookupStates([FromBody] DataManager dm, string countryIso, bool includeAll = false)
        {
            var result = new List<LookupItemVm>();
            var filter = string.Empty;
            if (dm.Where?.FirstOrDefault() != null)
            {
                filter = dm.Where.First().value.ToString();
                if (filter.IndexOf('(') > 0)
                {
                    filter = filter.Substring(0, (filter.IndexOf('(') - 1));
                    filter = filter.TrimEnd();
                }
            }

            var states = _countryService.GetStates(countryIso).OrderBy(c => c.Name);

            var items = states.Where(c => c.Name.ToLower().Contains(filter.ToLower()));

            foreach (var item in items)
            {
                result.Add(new LookupItemVm() { Id = item.Code.ToString(), Name = $"{item.Name}" });
            }

            if (includeAll)
                result.Insert(0, new LookupItemVm() { Id = "", Name = _localizer["Common_All"].ToString() });

            //result.Insert(0, new LookupItemVm() { Id = "", Name = _localizer["Common_Select"].ToString() });
            return Json(result);
        }
    }
}