using System;
using System.Collections.Generic;
using System.Data;
using Newtonsoft.Json;
using RestSharp;

namespace Kreta.Client.LEP
{
    public class LepClient
    {
        private readonly string baseUrl;
        private readonly string apiKey;

        public LepClient(string baseUrl, string apiKey)
        {
            this.baseUrl = baseUrl;
            this.apiKey = apiKey;
        }

        private IRestResponse Http(Method method, string relativeUri, Dictionary<string, string> parameters = null, Object body = null)
        {
            var restRequest = new RestRequest(relativeUri, method);
            restRequest.AddHeader("ApiKey", apiKey);

            if (parameters != null && parameters.Count > 0)
            {
                foreach (var parameter in parameters)
                {
                    restRequest.AddParameter(parameter.Key, parameter.Value);
                }
            }

            if (method == Method.POST && body != null)
            {
                restRequest.AddJsonBody(body);
            }

            var result = new RestClient(string.Format(baseUrl)).Execute(restRequest);
            return result;
        }

        private TResponse Http<TResponse>(Method method, string relativeUri, Dictionary<string, string> parameters = null, Object body = null)
        {
            var result = Http(method, relativeUri, parameters, body);
            var response = JsonConvert.DeserializeObject<TResponse>(result.Content);

            return response;
        }

        private TResponse GetAsync<TResponse>(string relativeUri, Dictionary<string, string> parameters = null)
        {
            return Http<TResponse>(Method.GET, relativeUri, parameters);
        }

        private TResponse PostAsync<TResponse>(string relativeUri, Dictionary<string, string> parameters = null, Object body = null)
        {
            return Http<TResponse>(Method.POST, relativeUri, parameters, body);
        }

        private void Post(string relativeUri, Dictionary<string, string> parameters = null, Object body = null)
        {
            Http(Method.POST, relativeUri, parameters, body);
        }

        public JelentkezesResponseModel PostEloadasokTanuloszamossag(string intezmenyAzonosito, int eloadasId, int tanuloLetszam, int kiseroLetszam)
        {
            var body = new
            {
                IntezmenyAzonosito = intezmenyAzonosito,
                EloadasIdopont = eloadasId,
                TanulokSzama = tanuloLetszam,
                KiserokSzama = kiseroLetszam
            };

            var response = PostAsync<JelentkezesResponseModel>("api/lep2/eloadasidopontresztvevointezmeny/external/jelentkezes", null, body);
            return response;
        }

        public JelenletResponseModel PostEloadasokTanulojelenlet(string intezmenyAzonosito, int eloadasId, DataSet ds)
        {
            var body = new
            {
                IntezmenyAzonosito = intezmenyAzonosito,
                EloadasIdopont = eloadasId,
                TanuloLista = new List<JelenletRequestPartialModel>()
            };

            foreach (DataRow row in ds.Tables[0].Rows)
            {
                body.TanuloLista.Add(new JelenletRequestPartialModel
                {
                    TanuloId = row.Field<int>("TanuloId"),
                    EvfolyamId = row.Field<int?>("EvfolyamId"),
                    EvfolyamNev = row.Field<string>("EvfolyamNev"),
                    OsztalyId = row.Field<int?>("OsztalyId"),
                    OsztalyNev = row.Field<string>("OsztalyNev"),
                    Megjelent = row.Field<string>("Megjelent") == "T",
                    Torolt = row.Field<string>("Torolt") == "T"
                });
            }

            var response = PostAsync<JelenletResponseModel>("api/lep2/eloadasidopontresztvevointezmeny/external/jelenlet", null, body);
            return response;
        }

        public List<EloadasIdopontResponseModel> GetEloadasok(string intezmenyAzonosito, List<int> evfolyamList)
        {
            var body = new
            {
                IntezmenyAzonosito = intezmenyAzonosito,
                EvfolyamAzonositok = evfolyamList
            };

            var response = PostAsync<List<EloadasIdopontResponseModel>>("api/lep2/eloadasidopontresztvevointezmeny/external/get", null, body);
            return response;
        }
    }
}