using System;
using System.Collections.Generic;
using System.Net;
using Kreta.Client.ClientBase;
using Kreta.Client.ClientBase.Interface;
using Kreta.Client.CoreApi.Configuration;
using Kreta.Client.CoreApi.Extension;
using Kreta.Client.CoreApi.Request;
using Kreta.Client.CoreApi.Response;
using Kreta.Framework;
using Kreta.Framework.Exceptions;
using Newtonsoft.Json;

namespace Kreta.Client.CoreApi
{
    internal class CoreApiClient : RestSharpClientBase, ICoreApiClient
    {
        private readonly ICoreApiClientConfiguration coreApiClientConfiguration;

        public CoreApiClient(ICoreApiClientConfiguration coreApiClientConfiguration)
        {
            this.coreApiClientConfiguration = coreApiClientConfiguration ?? throw new ArgumentNullException(nameof(coreApiClientConfiguration));
        }

        public DKTFeladatInsertResponse DKTFeladatInsert(DKTFeladatInsertRequest request, int alkalmazottId)
        {
            GetTokenResponse token = GetToken();
            if (token.IsSuccess)
            {
                BaseUrl = coreApiClientConfiguration.DKTUrl;

                string relativeUri = $"/kreta/intezmenyek/alkalmazottak/{alkalmazottId}/orak/hazifeladatok";
                Dictionary<string, string> headers = token.AccessToken.GetAuthorizationHeaderWithJson(request.IntezmenyGuid, request.TanevSorszam);
                IRestResult response = Post(relativeUri, headers, body: request);

                if (response.StatusCode == HttpStatusCode.OK)
                {
                    return new DKTFeladatInsertResponse
                    {
                        NewHazifeladatId = int.Parse(response.Result)
                    };
                }

                try
                {
                    return JsonConvert.DeserializeObject<DKTFeladatInsertResponse>(response.Result);
                }
                catch (Exception e)
                {
                    var ex = new Exception(response.Result, e);
                    SDAServer.Instance.Logger.ExceptionThrown(ex);

                    return new DKTFeladatInsertResponse
                    {
                        Exception = new DKTExceptionItem
                        {
                            Message = "Kapcsolódási probléma, kérjük a mentést próbálja meg újra!"
                        }
                    };
                }
            }

            return new DKTFeladatInsertResponse
            {
                Exception = new DKTExceptionItem
                {
                    Message = "Nem sikerült a kapcsolat felépítése DKT-val!"
                }
            };
        }

        public DKTFeladatResponse DKTFeladatUpdate(DKTFeladatUpdateRequest request, int alkalmazottId)
        {
            GetTokenResponse token = GetToken();
            if (token.IsSuccess)
            {
                BaseUrl = coreApiClientConfiguration.DKTUrl;

                string relativeUri = $"/kreta/intezmenyek/alkalmazottak/{alkalmazottId}/orak/hazifeladatok/{request.Id}";
                Dictionary<string, string> headers = token.AccessToken.GetAuthorizationHeaderWithJson(request.IntezmenyGuid, request.TanevSorszam);
                IRestResult response = Put(relativeUri, headers, body: request);

                if (response.StatusCode == HttpStatusCode.OK)
                {
                    return new DKTFeladatResponse();
                }

                try
                {
                    return JsonConvert.DeserializeObject<DKTFeladatResponse>(response.Result);
                }
                catch (Exception e)
                {
                    var ex = new Exception(response.Result, e);
                    SDAServer.Instance.Logger.ExceptionThrown(ex);

                    return new DKTFeladatResponse
                    {
                        Exception = new DKTExceptionItem
                        {
                            Message = "Kapcsolódási probléma, kérjük a mentést próbálja meg újra!"
                        }
                    };
                }
            }

            return new DKTFeladatResponse
            {
                Exception = new DKTExceptionItem
                {
                    Message = "Nem sikerült a kapcsolat felépítése DKT-val!"
                }
            };
        }

        public DKTFeladatResponse DKTFeladatDelete(DKTFeladatDeleteRequest request)
        {
            GetTokenResponse token = GetToken();
            if (token.IsSuccess)
            {
                BaseUrl = coreApiClientConfiguration.DKTUrl;

                string relativeUri = $"/kreta/intezmenyek/alkalmazottak/{request.AlkalmazottId}/orak/hazifeladatok/{request.Id}";
                Dictionary<string, string> headers = token.AccessToken.GetAuthorizationHeaderWithJson(request.IntezmenyGuid, request.TanevSorszam);
                IRestResult response = Delete(relativeUri, headers);

                if (response.StatusCode == HttpStatusCode.OK)
                {
                    return new DKTFeladatResponse();
                }

                try
                {
                    return JsonConvert.DeserializeObject<DKTFeladatResponse>(response.Result);
                }
                catch (Exception e)
                {
                    var ex = new Exception(response.Result, e);
                    SDAServer.Instance.Logger.ExceptionThrown(ex);

                    return new DKTFeladatResponse
                    {
                        Exception = new DKTExceptionItem
                        {
                            Message = "Kapcsolódási probléma, kérjük a törlést próbálja meg újra!"
                        }
                    };
                }
            }

            return new DKTFeladatResponse
            {
                Exception = new DKTExceptionItem
                {
                    Message = "Nem sikerült a kapcsolat felépítése DKT-val!"
                }
            };
        }

        public EszkozIgenylesCreateResponse EszkozIgenylesInsert(EszkozIgenylesCreateDto request, string intezmenyGuid, int tanevSorszam)
        {
            GetTokenResponse token = GetCoreApiToken();
            if (token.IsSuccess)
            {
                BaseUrl = coreApiClientConfiguration.CoreApiUrl;

                string relativeUri = $"/intezmenyek/EszkozIgenyles";
                Dictionary<string, string> headers = token.AccessToken.GetAuthorizationHeaderWithJson(intezmenyGuid, tanevSorszam);
                headers.Add("setting", "true");
                IRestResult response = Post(relativeUri, headers, body: request);

                try
                {
                    if (response.StatusCode == HttpStatusCode.OK)
                    {
                        return new EszkozIgenylesCreateResponse
                        {
                            NewId = int.Parse(response.Result)
                        };
                    }

                    try
                    {
                        return JsonConvert.DeserializeObject<EszkozIgenylesCreateResponse>(response.Result);
                    }
                    catch (Exception e)
                    {
                        var ex = new Exception(response.Result, e);
                        SDAServer.Instance.Logger.ExceptionThrown(ex);

                        return new EszkozIgenylesCreateResponse
                        {
                            Exception = new CoreApiExceptionItem
                            {
                                Message = "Nem megfelelő response model!"
                            }
                        };
                    }
                }
                catch (Exception e)
                {
                    var ex = new Exception(response.Result, e);
                    SDAServer.Instance.Logger.ExceptionThrown(ex);

                    throw new Exception(e.Message);
                }
            }

            throw new Exception("IDP nem elérhető!");
        }

        public CoreApiResponse EszkozIgenylesUpdate(EszkozIgenylesUpdateDto request, string intezmenyGuid, int tanevSorszam)
        {
            GetTokenResponse token = GetCoreApiToken();
            if (token.IsSuccess)
            {
                BaseUrl = coreApiClientConfiguration.CoreApiUrl;

                string relativeUri = $"/intezmenyek/EszkozIgenyles/" + request.Id.ToString();
                Dictionary<string, string> headers = token.AccessToken.GetAuthorizationHeaderWithJson(intezmenyGuid, tanevSorszam);
                headers.Add("setting", "true");
                IRestResult response = Put(relativeUri, headers, body: request);

                try
                {
                    if (response.StatusCode == HttpStatusCode.OK)
                    {
                        return new CoreApiResponse();
                    }
                    else
                    {
                        try
                        {
                            return JsonConvert.DeserializeObject<CoreApiResponse>(response.Result);
                        }
                        catch (Exception e)
                        {
                            var ex = new Exception(response.Result, e);
                            SDAServer.Instance.Logger.ExceptionThrown(ex);

                            return new CoreApiResponse
                            {
                                Exception = new CoreApiExceptionItem
                                {
                                    Message = "Nem megfelelő response model!"
                                }
                            };
                        }
                    }
                }
                catch (Exception e)
                {
                    var ex = new Exception(response.Result, e);
                    SDAServer.Instance.Logger.ExceptionThrown(ex);

                    throw new Exception(e.Message);
                }
            }

            throw new Exception("IDP nem elérhető!");
        }

        public List<EszkozIgenylesDto> EszkozIgenylesGet(string intezmenyGuid, int tanevSorszam)
        {
            GetTokenResponse token = GetCoreApiToken();
            if (token.IsSuccess)
            {
                BaseUrl = coreApiClientConfiguration.CoreApiUrl;

                string relativeUri = $"/intezmenyek/EszkozIgenyles";
                Dictionary<string, string> headers = token.AccessToken.GetAuthorizationHeaderWithJson(intezmenyGuid, tanevSorszam);
                IRestResult response = Get(relativeUri, headers);

                if (response.StatusCode == HttpStatusCode.OK)
                {
                    try
                    {
                        return JsonConvert.DeserializeObject<List<EszkozIgenylesDto>>(response.Result,
                            new JsonSerializerSettings() { MissingMemberHandling = MissingMemberHandling.Ignore });
                    }
                    catch (Exception e)
                    {
                        var ex = new Exception(response.Result, e);
                        SDAServer.Instance.Logger.ExceptionThrown(ex);

                        throw new Exception(e.Message);
                    }
                }
                else
                {
                    throw new Exception("Szolgáltatás nem elérhető!");
                }
            }

            throw new Exception("IDP nem elérhető!");
        }

        public GetTokenResponse GetToken()
        {
            GetTokenResponse result = GetToken(coreApiClientConfiguration.GetPrivateTokenRequestParameters());
            return result;
        }

        private GetTokenResponse GetToken(Dictionary<string, string> tokenRequestParameters)
        {
            return ExceptionLogger(() =>
            {
                BaseUrl = coreApiClientConfiguration.IDPUrl;

                string relativeUri = "/connect/token";
                Dictionary<string, string> headers = HeaderExtension.GetFormUrlEncodedHeader();
                IRestResult response = Post(relativeUri, headers, tokenRequestParameters);

                if (response.StatusCode == HttpStatusCode.OK)
                {
                    GetTokenSuccessResponse successResponse = JsonConvert.DeserializeObject<GetTokenSuccessResponse>(response.Result);
                    return new GetTokenResponse(successResponse.AccessToken, successResponse.ExpiresIn);
                }

                GetTokenFailureResponse failureResponse = JsonConvert.DeserializeObject<GetTokenFailureResponse>(response.Result);
                return new GetTokenResponse(failureResponse.Error);
            });
        }

        public GetTokenResponse GetCoreApiToken()
        {
            GetTokenResponse result = GetCoreApiToken(coreApiClientConfiguration.GetCoreApiPrivateTokenRequestParameters());
            return result;
        }

        private GetTokenResponse GetCoreApiToken(Dictionary<string, string> tokenRequestParameters)
        {
            return ExceptionLogger(() =>
            {
                BaseUrl = coreApiClientConfiguration.CoreApiIDPUrl;

                string relativeUri = "/connect/token";
                Dictionary<string, string> headers = HeaderExtension.GetFormUrlEncodedHeader();
                IRestResult response = Post(relativeUri, headers, tokenRequestParameters);

                if (response.StatusCode == HttpStatusCode.OK)
                {
                    GetTokenSuccessResponse successResponse = JsonConvert.DeserializeObject<GetTokenSuccessResponse>(response.Result);
                    return new GetTokenResponse(successResponse.AccessToken, successResponse.ExpiresIn);
                }

                GetTokenFailureResponse failureResponse = JsonConvert.DeserializeObject<GetTokenFailureResponse>(response.Result);
                return new GetTokenResponse(failureResponse.Error);
            });
        }

        private T ExceptionLogger<T>(Func<T> action) where T : IResponse, new()
        {
            try
            {
                return action();
            }
            catch (Exception ex)
            {
                SDAServer.Instance.Logger.ExceptionThrown(ex);

                return (T)Activator.CreateInstance(typeof(T), ExceptionUtil.ExceptionToString(ex));
            }
        }
    }
}