using System.Net.Http;
using Microsoft.Extensions.Configuration;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http.Json;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using WorkFlowCheck.Common.DTO;
using System.Text.Json.Serialization;
using Newtonsoft.Json;
using WorkFlowCheck.MAUI.DataLayer;
using AutoMapper;
using WorkFlowCheck.MAUI.Services.Interfaces;
using Microsoft.EntityFrameworkCore;
using WorkFlowCheck.MAUI.Handlers;

namespace WorkFlowCheck.MAUI.Services
{
    public class UserService : BaseService, IUserService
    {
        public UserDTO? CurrentUser { get; private set; }
        public UserService(HttpClient httpClient, IConfiguration configuration, AppDbContext dbContext, IMapper mapper) : base(httpClient, configuration, dbContext, mapper)
        {
        }
        
        public async Task<ApiResponseDTO<UserDTO>> GetUserAsync(int id)
        {
            try
            {
                await PrepareAuthenticatedRequestAsync();

                string endpoint = $"{_httpClient.BaseAddress}api/GetUser/{id}";
                var response = await _httpClient.GetFromJsonAsync<ApiResponseDTO<UserDTO>>(endpoint);

                return response ?? new ApiResponseDTO<UserDTO>
                {
                    IsSuccess = false,
                };
            }
            catch (Exception ex)
            {
                // Hiba visszaadása
                return new ApiResponseDTO<UserDTO>
                {
                    IsSuccess = false
                };
            }
        }
        public async Task<ApiResponseDTO<List<UserDTO>>> GetAllUserAsync()
        {
            try
            {
                await PrepareAuthenticatedRequestAsync();

                string endpoint = $"{_httpClient.BaseAddress}api/GetAllUser";
                var response = await _httpClient.GetFromJsonAsync<ApiResponseDTO<List<UserDTO>>>(endpoint);

                return response ?? new ApiResponseDTO<List<UserDTO>>
                {
                    IsSuccess = false,
                };
            }
            catch (Exception ex)
            {

                return new ApiResponseDTO<List<UserDTO>>
                {
                    IsSuccess = false
                };
            }
        }
        public async Task<ApiResponseDTO<UserDTO>> Authenticate(string username, string password)
        {
            try
            {
                // Az API végpont meghatározása
                string endpoint = $"{_httpClient.BaseAddress}api/user/authenticate";

                var userSimpleDTO = new UserSimpleDTO()
                {
                    UserName = username,
                    Password = password,

                };

                // HTTP POST kérés küldése

                using (HttpResponseMessage httpResponseMessage = await _httpClient.PostAsJsonAsync(endpoint, userSimpleDTO))
                {
                    httpResponseMessage.EnsureSuccessStatusCode();

                    var jsonString = await httpResponseMessage.Content.ReadAsStringAsync();
                    var response = JsonConvert.DeserializeObject<ApiResponseDTO<UserDTO>>(jsonString);

                    return response ?? new ApiResponseDTO<UserDTO>
                    {
                        IsSuccess = false,
                    };
                }
            }
            catch (Exception ex)
            {
                // Hiba visszaadása
                return new ApiResponseDTO<UserDTO>
                {
                    IsSuccess = false
                };
            }
        }
        public async Task<ApiResponseDTO<string>> SyncUsers_Up(Action<double, string> reportProgress)
        {
            var retVal = new ApiResponseDTO<string>();
            try
            {
                await PrepareAuthenticatedRequestAsync();

                var userList = await _dbContext.Users.ToListAsync();

                var userListDTO = _mapper.Map<List<UserDTO>>(userList);
                var endpoint = $"{_httpClient.BaseAddress}api/Sync/UpdateAllUser";

                var json = JsonConvert.SerializeObject(userListDTO);
                var jsonBytes = Encoding.UTF8.GetBytes(json);
                var jsonStream = new MemoryStream(jsonBytes);

                var progressContent = new ProgressableStreamContent(jsonStream, 8192, (uploaded, total) =>
                {
                    double percentage = (double)uploaded / total * 100;
                    reportProgress(percentage, "Beküldés...");
                });

                progressContent.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/json");

                using (HttpResponseMessage httpResponseMessage = await _httpClient.PostAsync(endpoint, progressContent))
                {
                    httpResponseMessage.EnsureSuccessStatusCode();
                    var jsonString = await httpResponseMessage.Content.ReadAsStringAsync();
                    retVal = JsonConvert.DeserializeObject<ApiResponseDTO<string>>(jsonString);
                }

            }
            catch (Exception ex)
            {
                retVal.IsSuccess = false;
                retVal.Errors.Add(ex.Message);
            }
            return retVal;
        }
        public void SetCurrentUser(UserDTO user)
        {
            CurrentUser = user;
        }

        public UserDTO? GetCurrentUser() => CurrentUser;
    }
}