using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Components.Authorization;
using Microsoft.Extensions.Configuration;
using Newtonsoft.Json;
using ReserveManagementSystemLib.Models;
using ReserveManagementSystemUI.Helpers;
using ReserveManagementSystemUI.Model.Configuration;
using Serilog;
using LCU.Library.Internal.LcuHttpClient;

namespace ReserveManagementSystemUI.Services
{
    public class ReserveService
    {
        private ILcuHttpClient _lcuHttpClient;
        private IConfiguration _config;
        private RmsUIConfiguration _rmsUIconfig;
        private AuthenticationStateProvider _authenticationStateProvider;
        private ServiceHelpers _serviceHelper;

        public ReserveService(ILcuHttpClient lcuHttpClient,
                                AuthenticationStateProvider authenticationStateProvider,
                                ServiceHelpers serviceHelper,
                                RmsUIConfiguration rmsUIConfig)
        {
            _lcuHttpClient = lcuHttpClient;
            _authenticationStateProvider = authenticationStateProvider;
            _serviceHelper = serviceHelper;
            _rmsUIconfig = rmsUIConfig;
        }

        public async Task<PaginatedListResponse> GetFilteredLoans(LoanFilter loanFilter)
        {
            PaginatedListResponse pagedLoanResponse = new PaginatedListResponse();

            try
            {
                var authState = _authenticationStateProvider.GetAuthenticationStateAsync().Result;
                var apiUrl = $"{ _serviceHelper.GetControllerApiUrl("ApiUrl", "LoanController")}/SearchLoans";
                var client = _lcuHttpClient.CreateClient(new Uri(apiUrl));
                
                string json = JsonConvert.SerializeObject(loanFilter);
                HttpContent content = new StringContent(json, Encoding.UTF8, "application/json");

                HttpResponseMessage response = client.PostAsync(apiUrl, content).Result;

                if (response.IsSuccessStatusCode)
                {
                    var jsonString = response.Content.ReadAsStringAsync();
                    jsonString.Wait();
                    pagedLoanResponse = JsonConvert.DeserializeObject<PaginatedListResponse>(jsonString.Result);
                }

                return pagedLoanResponse;
       
            }
            catch (Exception ex)
            {
                Log.Error(ex, "Error getting loans.");
                pagedLoanResponse = null;
            }

            return await Task.FromResult(pagedLoanResponse);
        }

        public async Task<List<string>> GetMemberNumbers(string searchText)
        {
            var members = new List<string>();

            try
            {
                var authState = _authenticationStateProvider.GetAuthenticationStateAsync().Result;
                var apiUrl = $"{ _serviceHelper.GetControllerApiUrl("ApiUrl", "LoanController")}/SearchMembers/{searchText}";
                var client = _lcuHttpClient.CreateClient(new Uri(apiUrl));

                var response = client.GetAsync(apiUrl).Result;

                if (response.IsSuccessStatusCode)
                {
                    var jsonString = response.Content.ReadAsStringAsync();
                    jsonString.Wait();
                    members = JsonConvert.DeserializeObject<List<string>>(jsonString.Result);
                }

                return members;

            }
            catch (Exception ex)
            {
                Log.Error(ex, "Error getting members by search text.");
                members = null;
            }

            return await Task.FromResult(members);
        }

        public async Task<List<string>> GetLoanNumbers(string searchText)
        {
            var loanNumbers = new List<string>();

            try
            {
                var authState = _authenticationStateProvider.GetAuthenticationStateAsync().Result;
                var apiUrl = $"{ _serviceHelper.GetControllerApiUrl("ApiUrl", "LoanController")}/SearchLoanNumbers/{searchText}";
                var client = _lcuHttpClient.CreateClient(new Uri(apiUrl));

                var response = client.GetAsync(apiUrl).Result;

                if (response.IsSuccessStatusCode)
                {
                    var jsonString = response.Content.ReadAsStringAsync();
                    jsonString.Wait();
                    loanNumbers = JsonConvert.DeserializeObject<List<string>>(jsonString.Result);
                }

                return loanNumbers;
            }
            catch (Exception ex)
            {
                Log.Error(ex, "Error getting loan numbers by search text.");
                loanNumbers = null;
            }

            return await Task.FromResult(loanNumbers);
        }

        public async Task<List<string>> GetApplicationIds(string searchText)
        {
            var applicationIds = new List<string>();

            try
            {
                var authState = _authenticationStateProvider.GetAuthenticationStateAsync().Result;
                var apiUrl = $"{ _serviceHelper.GetControllerApiUrl("ApiUrl", "LoanController")}/SearchApplicationIds/{searchText}";
                var client = _lcuHttpClient.CreateClient(new Uri(apiUrl));

                var response = client.GetAsync(apiUrl).Result;

                if (response.IsSuccessStatusCode)
                {
                    var jsonString = response.Content.ReadAsStringAsync();
                    jsonString.Wait();
                    applicationIds = JsonConvert.DeserializeObject<List<string>>(jsonString.Result);
                }

                return applicationIds;
            }
            catch (Exception ex)
            {
                Log.Error(ex, "Error getting application ids by search text.");
                applicationIds = null;
            }

            return await Task.FromResult(applicationIds);
        }

        public async Task<List<Dealer>> GetDealers(string dealerSearchText)
        {
            var dealers = new List<Dealer>();

            try
            {
                var authState = _authenticationStateProvider.GetAuthenticationStateAsync().Result;
                var apiUrl = $"{ _serviceHelper.GetControllerApiUrl("ApiUrl", "DealerController")}/Search/{dealerSearchText}";
                var client = _lcuHttpClient.CreateClient(new Uri(apiUrl));

                var response = client.GetAsync(apiUrl).Result;

                if (response.IsSuccessStatusCode)
                {
                    var jsonString = response.Content.ReadAsStringAsync();
                    jsonString.Wait();
                    dealers = JsonConvert.DeserializeObject<List<Dealer>>(jsonString.Result);
                }

                return dealers;

            }
            catch (Exception ex)
            {
                Log.Error(ex, "Error getting dealers by search text.");
                dealers = null;
            }

            return await Task.FromResult(dealers);
        }

        public async Task<Loan> GetLoanById(int loanId)
        {
            Loan loanInfo = new Loan();

            try
            {
                var authState = _authenticationStateProvider.GetAuthenticationStateAsync().Result;
                var apiUrl = $"{_serviceHelper.GetControllerApiUrl("ApiUrl", "LoanController")}/GetById/{loanId}";
                var client = _lcuHttpClient.CreateClient(new Uri(apiUrl));
                HttpResponseMessage response = client.GetAsync(apiUrl).Result;

                if (response.IsSuccessStatusCode)
                {
                    var jsonString = response.Content.ReadAsStringAsync();
                    jsonString.Wait();
                    loanInfo = JsonConvert.DeserializeObject<Loan>(jsonString.Result);
                }

            }
            catch (Exception ex)
            {
                Log.Error(ex, "Error getting loan.");
                loanInfo = null;
            }

            return await Task.FromResult(loanInfo);
        }

        public async Task<List<Import>> GetAllImports()
        {
            var imports = new List<Import>();

            try
            {
                var authState = _authenticationStateProvider.GetAuthenticationStateAsync().Result;
                var apiUrl = _serviceHelper.GetControllerApiUrl("ApiUrl", "ImportController");
                var client = _lcuHttpClient.CreateClient(new Uri(apiUrl));
                HttpResponseMessage response = client.GetAsync(apiUrl).Result;

                if (response.IsSuccessStatusCode)
                {
                    var jsonString = response.Content.ReadAsStringAsync();
                    jsonString.Wait();
                    imports = JsonConvert.DeserializeObject<List<Import>>(jsonString.Result) ?? new List<Import>();
                }

            }
            catch (Exception ex)
            {
                Log.Error(ex, "Error getting imports.");
                imports = null;
            }

            return await Task.FromResult(imports);
        }

        public async Task<List<Import>> GetRecentImports(int numberOfImports)
        {
            var imports = new List<Import>();

            try
            {
                var authState = _authenticationStateProvider.GetAuthenticationStateAsync().Result;
                var apiUrl = $"{_serviceHelper.GetControllerApiUrl("ApiUrl", "ImportController")}/GetRecentImports/{numberOfImports}";
                var client = _lcuHttpClient.CreateClient(new Uri(apiUrl));
                HttpResponseMessage response = client.GetAsync(apiUrl).Result;

                if (response.IsSuccessStatusCode)
                {
                    var jsonString = response.Content.ReadAsStringAsync();
                    jsonString.Wait();
                    imports = JsonConvert.DeserializeObject<List<Import>>(jsonString.Result) ?? new List<Import>();
                }

            }
            catch (Exception ex)
            {
                Log.Error(ex, "Error getting imports.");
                imports = null;
            }

            return await Task.FromResult(imports);
        }

        public async Task<List<AuditHistory>> GetHistory()
        {
            var history = new List<AuditHistory>();

            try
            {
                var authState = _authenticationStateProvider.GetAuthenticationStateAsync().Result;
                var apiUrl = _serviceHelper.GetControllerApiUrl("ApiUrl", "AuditHistoryController");
                var client = _lcuHttpClient.CreateClient(new Uri(apiUrl));
                HttpResponseMessage response = client.GetAsync(apiUrl).Result;

                if (response.IsSuccessStatusCode)
                {
                    var jsonString = response.Content.ReadAsStringAsync();
                    jsonString.Wait();
                    history = JsonConvert.DeserializeObject<List<AuditHistory>>(jsonString.Result);
                }
            }
            catch (Exception ex)
            {
                Log.Error(ex, "Error getting audit history.");
                history = null;
            }
            return await Task.FromResult(history);
        }

        public async Task<Import> GetActiveLoans()
        {
            var import = new Import();

            try
            {
                var authState = _authenticationStateProvider.GetAuthenticationStateAsync().Result;
                var apiUrl = $"{_serviceHelper.GetControllerApiUrl("ApiUrl", "ImportController")}/ImportActiveLoans";
                var client = _lcuHttpClient.CreateClient(new Uri(apiUrl));
                var timeout = Convert.ToDouble(_rmsUIconfig.DefaultImportTimeout);
                client.Timeout = TimeSpan.FromMinutes(timeout); 

                HttpResponseMessage response = client.PutAsync(apiUrl, null).Result;

                if (response.IsSuccessStatusCode)
                {
                    var jsonString = response.Content.ReadAsStringAsync();
                    jsonString.Wait();
                    import = JsonConvert.DeserializeObject<Import>(jsonString.Result);
                }

            }
            catch (Exception ex)
            {
                Log.Error(ex, "Error running active loan import process.");
                import = null;
            }

            return await Task.FromResult(import);
        }

        public async Task<Import> GetClosedLoans()
        {
            var import = new Import();

            try
            {
                var authState = _authenticationStateProvider.GetAuthenticationStateAsync().Result;
                var apiUrl = $"{_serviceHelper.GetControllerApiUrl("ApiUrl", "ImportController")}/ImportClosedLoans";
                var client = _lcuHttpClient.CreateClient(new Uri(apiUrl));
                var timeout = Convert.ToDouble(_rmsUIconfig.DefaultImportTimeout);
                client.Timeout = TimeSpan.FromMinutes(timeout);

                HttpResponseMessage response = client.PutAsync(apiUrl, null).Result;

                if (response.IsSuccessStatusCode)
                {
                    var jsonString = response.Content.ReadAsStringAsync();
                    jsonString.Wait();
                    import = JsonConvert.DeserializeObject<Import>(jsonString.Result);
                }

            }
            catch (Exception ex)
            {
                Log.Error(ex, "Error running closed loan import process.");
                import = null;
            }

            return await Task.FromResult(import);
        }
    }
}