using System;
using Kreta.BusinessLogic.Caching;
using Kreta.BusinessLogic.Interfaces;
using Kreta.Client.FileService;
using Kreta.Client.FileService.Request;
using Kreta.Client.FileService.Response;

namespace Kreta.BusinessLogic.Helpers
{
    internal class FileServiceHelper : IFileServiceHelper
    {
        private readonly IFileServiceClient fileServiceClient;
        private readonly IFileServiceClientV3 fileServiceClientV3;

        private readonly ITokenServiceHelper tokenServiceHelper;

        private FileServiceCache FileServiceCache => KretaServer.KretaServer.Instance.CacheManager.AquireCache<FileServiceCache>();

        public FileServiceHelper(IFileServiceClient fileServiceClient, IFileServiceClientV3 fileServiceClientV3, ITokenServiceHelper tokenServiceHelper)
        {
            this.fileServiceClient = fileServiceClient ?? throw new ArgumentNullException(nameof(fileServiceClient));
            this.fileServiceClientV3 = fileServiceClientV3 ?? throw new ArgumentNullException(nameof(fileServiceClientV3));
            this.tokenServiceHelper = tokenServiceHelper ?? throw new ArgumentNullException(nameof(tokenServiceHelper));
        }

        public FileUploadResponse Upload(IFileUploadRequest fileUploadRequest)
        {
            var response = fileServiceClientV3.Upload(FileServiceCache.GetPrivateToken(tokenServiceHelper), fileUploadRequest);

            if (response.TryAgain)
            {
                return fileServiceClientV3.Upload(FileServiceCache.GetPrivateToken(tokenServiceHelper, forceUpdate: true), fileUploadRequest);
            }

            return response;
        }

        public FileFinalizeResponseV3 Veglegesites(FileFinalizeRequestV3 fileVeglegesitesRequest)
        {
            var response = fileServiceClientV3.Veglegesites(FileServiceCache.GetPrivateToken(tokenServiceHelper), fileVeglegesitesRequest);

            if (response.TryAgain)
            {
                response = fileServiceClientV3.Veglegesites(FileServiceCache.GetPrivateToken(tokenServiceHelper, forceUpdate: true), fileVeglegesitesRequest);
            }

            return response;
        }

        public string GetUrl(string intezmenyAzonosito, GetUrlRequest fileDownloadRequest)
        {
            var response = fileServiceClient.GetUrl(intezmenyAzonosito, FileServiceCache.GetPrivateToken(tokenServiceHelper), fileDownloadRequest);

            if (response.TryAgain)
            {
                response = fileServiceClient.GetUrl(intezmenyAzonosito, FileServiceCache.GetPrivateToken(tokenServiceHelper, forceUpdate: true), fileDownloadRequest);
            }

            return response.Url;
        }

        public GetFileResponse GetFile(string intezmenyAzonosito, GetUrlRequest fileDownloadRequest)
        {
            fileDownloadRequest.Utvonal = CalculateFajlUtvonalKorabbiKompatibilitasMiatt(intezmenyAzonosito, fileDownloadRequest.Utvonal);
            var response = fileServiceClientV3.GetFile(intezmenyAzonosito, FileServiceCache.GetPrivateToken(tokenServiceHelper), fileDownloadRequest);

            if (response.TryAgain)
            {
                response = fileServiceClientV3.GetFile(intezmenyAzonosito, FileServiceCache.GetPrivateToken(tokenServiceHelper, forceUpdate: true), fileDownloadRequest);
            }

            return response;
        }

        public bool Delete(string intezmenyAzonosito, FileDeleteRequest fileDeleteRequest)
        {
            fileDeleteRequest.Utvonal = CalculateFajlUtvonalKorabbiKompatibilitasMiatt(intezmenyAzonosito, fileDeleteRequest.Utvonal);
            var response = fileServiceClientV3.Delete(intezmenyAzonosito, FileServiceCache.GetPrivateToken(tokenServiceHelper), fileDeleteRequest);

            if (response.TryAgain)
            {
                response = fileServiceClientV3.Delete(intezmenyAzonosito, FileServiceCache.GetPrivateToken(tokenServiceHelper, forceUpdate: true), fileDeleteRequest);
            }

            return response.IsSuccess;
        }

        private string CalculateFajlUtvonalKorabbiKompatibilitasMiatt(string intezmenyAzonosito, string utvonal)
        {
            bool regiUtvonalFormatum = utvonal.Length == 8;
            if (regiUtvonalFormatum)
            {
                var fajlUtvonalEv = utvonal.Substring(0, 4);
                var fajlUtvonalHonapNap = utvonal.Substring(4, 4);
                return $"HaziFeladatok/{intezmenyAzonosito}/{fajlUtvonalEv}/{fajlUtvonalHonapNap}";
            }
            return utvonal;
        }
    }
}